Jira Crawler is running endless in Admin GUI, but Crawler is already finished

I installed fess-ds-atlassian-13.8.2-20200916.132556-4.jar.

I´am very sorry, but the problem persists. As parameter i added the following to Jira Crawler:

read_timeout=10000
connection_timeout=10000

There does not any timeout happen… I expected a timeout for after 10 sec, but I wait for more than an hour and no timeout happened. The Jira crawler is still running.

This is thread dump of still running crawler:

2020-09-16 18:51:08,854 [ProcessCommand] INFO  Thread: Thread[Common-Cleaner,8,InnocuousThreadGroup]
2020-09-16 18:51:08,856 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,856 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:155)
2020-09-16 18:51:08,856 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.ref.CleanerImpl.run(CleanerImpl.java:148)
2020-09-16 18:51:08,856 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,856 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.InnocuousThread.run(InnocuousThread.java:134)
2020-09-16 18:51:08,856 [ProcessCommand] INFO  Thread: Thread[Signal Dispatcher,9,system]
2020-09-16 18:51:08,857 [ProcessCommand] INFO  Thread: Thread[CommandGeneratorDestoryTimer-1600265235663,5,main]
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Object.java:328)
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.mainLoop(Timer.java:527)
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.run(Timer.java:506)
2020-09-16 18:51:08,857 [ProcessCommand] INFO  Thread: Thread[pool-5-thread-1,5,main]
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
2020-09-16 18:51:08,857 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2081)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:433)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  Thread: Thread[pool-6-thread-1,5,main]
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2081)
2020-09-16 18:51:08,858 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:433)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  Thread: Thread[CoreLib-TimeoutManager,5,main]
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.sleep(Native Method)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at app//org.codelibs.core.timer.TimeoutManager.run(TimeoutManager.java:171)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,859 [ProcessCommand] INFO  Thread: Thread[ThumbnailGenerator,5,main]
2020-09-16 18:51:08,859 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2123)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:458)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at app//org.codelibs.fess.thumbnail.ThumbnailManager.lambda$init$0(ThumbnailManager.java:123)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at app//org.codelibs.fess.thumbnail.ThumbnailManager$$Lambda$739/0x00000008405fdc40.run(Unknown Source)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  Thread: Thread[ProcessCommand,5,main]
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.dumpThreads(Native Method)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.getAllStackTraces(Thread.java:1657)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at app//org.codelibs.fess.util.ThreadDumpUtil.processThreadDump(ThreadDumpUtil.java:66)
2020-09-16 18:51:08,860 [ProcessCommand] INFO  	at app//org.codelibs.fess.util.ThreadDumpUtil.printThreadDump(ThreadDumpUtil.java:39)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler.lambda$main$3(Crawler.java:247)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler$$Lambda$790/0x000000084061f840.run(Unknown Source)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  Thread: Thread[Keep-Alive-Timer,8,InnocuousThreadGroup]
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.sleep(Native Method)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at java.base@11.0.7/sun.net.www.http.KeepAliveCache.run(KeepAliveCache.java:168)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.InnocuousThread.run(InnocuousThread.java:134)
2020-09-16 18:51:08,861 [ProcessCommand] INFO  Thread: Thread[main,5,main]
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.join(Thread.java:1305)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.join(Thread.java:1379)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler.joinCrawlerThread(Crawler.java:549)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler.doCrawl(Crawler.java:516)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler.process(Crawler.java:352)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler.main(Crawler.java:268)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  Thread: Thread[eshttp,5,main]
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,862 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1628)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  Thread: Thread[eshttp,5,main]
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1628)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  Thread: Thread[CommandGeneratorDestoryTimer-1600265235721,5,main]
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,863 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Object.java:328)
2020-09-16 18:51:08,864 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.mainLoop(Timer.java:527)
2020-09-16 18:51:08,864 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.run(Timer.java:506)
2020-09-16 18:51:08,864 [ProcessCommand] INFO  Thread: Thread[Ga1RQ3QBUxhlljYOKf80-1,5,main]
2020-09-16 18:51:08,864 [ProcessCommand] INFO  	at java.base@11.0.7/java.net.SocketInputStream.socketRead0(Native Method)
2020-09-16 18:51:08,864 [ProcessCommand] INFO  	at java.base@11.0.7/java.net.SocketInputStream.socketRead(SocketInputStream.java:115)
2020-09-16 18:51:08,864 [ProcessCommand] INFO  	at java.base@11.0.7/java.net.SocketInputStream.read(SocketInputStream.java:168)
2020-09-16 18:51:08,864 [ProcessCommand] INFO  	at java.base@11.0.7/java.net.SocketInputStream.read(SocketInputStream.java:140)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:448)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:68)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1096)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:816)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/java.io.BufferedInputStream.fill(BufferedInputStream.java:252)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/java.io.BufferedInputStream.read1(BufferedInputStream.java:292)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/java.io.BufferedInputStream.read(BufferedInputStream.java:351)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:754)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:689)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1610)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1515)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:527)
2020-09-16 18:51:08,865 [ProcessCommand] INFO  	at java.base@11.0.7/sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:334)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.curl.CurlRequest$RequestProcessor.accept(CurlRequest.java:269)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.curl.CurlRequest$RequestProcessor.accept(CurlRequest.java:249)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.curl.CurlRequest.lambda$connect$3(CurlRequest.java:199)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.curl.CurlRequest$$Lambda$383/0x0000000840478040.run(Unknown Source)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.curl.CurlRequest.connect(CurlRequest.java:211)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.curl.CurlRequest.execute(CurlRequest.java:230)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.ds.atlassian.api.AtlassianRequest.getCurlResponse(AtlassianRequest.java:115)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.ds.atlassian.api.AtlassianRequest.getCurlResponse(AtlassianRequest.java:72)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.ds.atlassian.api.jira.search.SearchRequest.execute(SearchRequest.java:80)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.ds.atlassian.api.jira.JiraClient.getIssues(JiraClient.java:102)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.ds.atlassian.JiraDataStore.storeData(JiraDataStore.java:69)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.ds.AbstractDataStore.store(AbstractDataStore.java:111)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.helper.DataIndexHelper$DataCrawlingThread.process(DataIndexHelper.java:216)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  	at app//org.codelibs.fess.helper.DataIndexHelper$DataCrawlingThread.run(DataIndexHelper.java:202)
2020-09-16 18:51:08,866 [ProcessCommand] INFO  Thread: Thread[Finalizer,8,system]
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:155)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:176)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:170)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  Thread: Thread[CommandGeneratorDestoryTimer-1600265235739,5,main]
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Object.java:328)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.mainLoop(Timer.java:527)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.run(Timer.java:506)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  Thread: Thread[pool-5-thread-2,5,main]
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2081)
2020-09-16 18:51:08,867 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:433)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  Thread: Thread[CommandGeneratorDestoryTimer-1600265235697,5,main]
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Object.java:328)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.mainLoop(Timer.java:527)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.TimerThread.run(Timer.java:506)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  Thread: Thread[Reference Handler,10,system]
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.Reference.waitForReferencePendingList(Native Method)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.Reference.processPendingReferences(Reference.java:241)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.ref.Reference$ReferenceHandler.run(Reference.java:213)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  Thread: Thread[pool-5-thread-3,5,main]
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/jdk.internal.misc.Unsafe.park(Native Method)
2020-09-16 18:51:08,868 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2081)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:433)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1054)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1114)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  Thread: Thread[DataStoreCrawler,5,main]
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Object.wait(Native Method)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.join(Thread.java:1313)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at app//org.codelibs.fess.helper.DataIndexHelper$DataCrawlingThread.awaitTermination(DataIndexHelper.java:286)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at app//org.codelibs.fess.helper.DataIndexHelper.doCrawl(DataIndexHelper.java:146)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at app//org.codelibs.fess.helper.DataIndexHelper.crawl(DataIndexHelper.java:77)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler.lambda$doCrawl$8(Crawler.java:509)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at app//org.codelibs.fess.exec.Crawler$$Lambda$863/0x0000000840650840.run(Unknown Source)
2020-09-16 18:51:08,869 [ProcessCommand] INFO  	at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)

I changed Log Level to debug on Fess page. Could you tell me where i can find output of debug?
Thanks for your work.

I added this line.
To change it to debug logging, you need to change Script of the crawler at Scheduler page

I tried the Jira Crawler again with:

read_timeout=10000
connection_timeout=10000

The Jira Crawler is running again endless. This is a shortened output of Jira debug log:

2020-09-17 20:45:56,563 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1145200
2020-09-17 20:45:56,563 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:45:56,563 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:45:56,933 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:45:56,933 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
2020-09-17 20:45:56,933 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1145250
2020-09-17 20:45:56,933 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:45:56,933 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:45:57,258 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:45:57,258 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
2020-09-17 20:45:57,258 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1145300
2020-09-17 20:45:57,258 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:45:57,258 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:45:57,487 [eshttp] DEBUG >>> GET http://localhost:9200/_nodes/stats/jvm,process,os,breaker,thread_pool,transport,fs,script,ingest,discovery,http,script_cache,adaptive_selection
2020-09-17 20:45:57,487 [eshttp] DEBUG >>> Content-Type=application/json
2020-09-17 20:45:57,493 [eshttp] DEBUG <<< ,"largest":0,"completed":0},"snapshot":{"threads":1,"queue":0,"active":0,"rejected":0,"largest":2,"completed":2},"transform_indexing":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"warmer":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"watcher":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"write":{"threads":6,"queue":0,"active":0,"rejected":0,"largest":6,"completed":65755}},"fs":{"timestamp":1600368357492,"total":{"total_in_bytes":77270618112,"free_in_bytes":47075565568,"available_in_bytes":47075565568},"least_usage_estimate":{"path":"/var/lib/elasticsearch/nodes/0","total_in_bytes":77270618112,"available_in_bytes":47075565568,"used_disk_percent":39.07701695906424},"most_usage_estimate":{"path":"/var/lib/elasticsearch/nodes/0","total_in_bytes":77270618112,"available_in_bytes":47075565568,"used_disk_percent":39.07701695906424},"data":[{"path":"/var/lib/elasticsearch/nodes/0","mount":"/ (/dev/sda1)","type":"xfs","total_in_bytes":77270618112,"free_in_bytes":47075565568,"available_in_bytes":47075565568}],"io_stats":{"devices":[{"device_name":"sda1","operations":1290391,"read_operations":296118,"write_operations":994273,"read_kilobytes":11124680,"write_kilobytes":27297966}],"total":{"operations":1290391,"read_operations":296118,"write_operations":994273,"read_kilobytes":11124680,"write_kilobytes":27297966}}},"transport":{"server_open":0,"rx_count":8,"rx_size_in_bytes":1248,"tx_count":8,"tx_size_in_bytes":1248},"http":{"current_open":1,"total_opened":87504},"breakers":{"request":{"limit_size_in_bytes":644245094,"limit_size":"614.3mb","estimated_size_in_bytes":0,"estimated_size":"0b","overhead":1.0,"tripped":0},"fielddata":{"limit_size_in_bytes":429496729,"limit_size":"409.5mb","estimated_size_in_bytes":0,"estimated_size":"0b","overhead":1.03,"tripped":0},"in_flight_requests":{"limit_size_in_bytes":1073741824,"limit_size":"1gb","estimated_size_in_bytes":0,"estimated_size":"0b","overhead":2.0,"tripped":0},"accounting":{"limit_size_in_bytes":1073741824,"limit_size":"1gb","estimated_size_in_bytes":776044,"estimated_size":"757.8kb","overhead":1.0,"tripped":0},"parent":{"limit_size_in_bytes":1020054732,"limit_size":"972.7mb","estimated_size_in_bytes":307052320,"estimated_size":"292.8mb","overhead":1.0,"tripped":0}},"script":{"compilations":4,"cache_evictions":0,"compilation_limit_triggered":0},"discovery":{"cluster_state_queue":{"total":0,"pending":0,"committed":0},"published_cluster_states":{"full_states":2,"incompatible_diffs":0,"compatible_diffs":168}},"ingest":{"total":{"count":0,"time_in_millis":0,"current":0,"failed":0},"pipelines":{"xpack_monitoring_6":{"count":0,"time_in_millis":0,"current":0,"failed":0,"processors":[{"script":{"type":"script","stats":{"count":0,"time_in_millis":0,"current":0,"failed":0}}},{"gsub":{"type":"gsub","stats":{"count":0,"time_in_millis":0,"current":0,"failed":0}}}]},"xpack_monitoring_7":{"count":0,"time_in_millis":0,"current":0,"failed":0,"processors":[]}}},"adaptive_selection":{"Pd95LNz9Q82S5Zh_w39pBQ":{"outgoing_searches":0,"avg_queue_size":0,"avg_service_time_ns":243406,"avg_response_time_ns":368320,"rank":"0.4"}},"script_cache":{"sum":{"compilations":4,"cache_evictions":0,"compilation_limit_triggered":0}}}}}st":0,"completed":0},"management":{"threads":5,"queue":0,"active":1,"rejected":0,"largest":5,"completed":2911934},"ml_datafeed":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"ml_job_comms":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"ml_utility":{"threads":2,"queue":0,"active":0,"rejected":0,"largest":2,"completed":619520},"refresh":{"threads":3,"queue":0,"active":0,"rejected":0,"largest":3,"completed":26128238},"rollup_indexing":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"search":{"threads":10,"queue":0,"active":0,"rejected":0,"largest":10,"completed":10395065},"search_throttled":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"security-token-key":{"threads":0,"queue":0,"active":0,"rejected":0
2020-09-17 20:45:57,493 [eshttp] DEBUG <<< ,"largest":0,"completed":0},"snapshot":{"threads":1,"queue":0,"active":0,"rejected":0,"largest":2,"completed":2},"transform_indexing":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"warmer":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"watcher":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"write":{"threads":6,"queue":0,"active":0,"rejected":0,"largest":6,"completed":65755}},"fs":{"timestamp":1600368357492,"total":{"total_in_bytes":77270618112,"free_in_bytes":47075565568,"available_in_bytes":47075565568},"least_usage_estimate":{"path":"/var/lib/elasticsearch/nodes/0","total_in_bytes":77270618112,"available_in_bytes":47075565568,"used_disk_percent":39.07701695906424},"most_usage_estimate":{"path":"/var/lib/elasticsearch/nodes/0","total_in_bytes":77270618112,"available_in_bytes":47075565568,"used_disk_percent":39.07701695906424},"data":[{"path":"/var/lib/elasticsearch/nodes/0","mount":"/ (/dev/sda1)","type":"xfs","total_in_bytes":77270618112,"free_in_bytes":47075565568,"available_in_bytes":47075565568}],"io_stats":{"devices":[{"device_name":"sda1","operations":1290391,"read_operations":296118,"write_operations":994273,"read_kilobytes":11124680,"write_kilobytes":27297966}],"total":{"operations":1290391,"read_operations":296118,"write_operations":994273,"read_kilobytes":11124680,"write_kilobytes":27297966}}},"transport":{"server_open":0,"rx_count":8,"rx_size_in_bytes":1248,"tx_count":8,"tx_size_in_bytes":1248},"http":{"current_open":1,"total_opened":87504},"breakers":{"request":{"limit_size_in_bytes":644245094,"limit_size":"614.3mb","estimated_size_in_bytes":0,"estimated_size":"0b","overhead":1.0,"tripped":0},"fielddata":{"limit_size_in_bytes":429496729,"limit_size":"409.5mb","estimated_size_in_bytes":0,"estimated_size":"0b","overhead":1.03,"tripped":0},"in_flight_requests":{"limit_size_in_bytes":1073741824,"limit_size":"1gb","estimated_size_in_bytes":0,"estimated_size":"0b","overhead":2.0,"tripped":0},"accounting":{"limit_size_in_bytes":1073741824,"limit_size":"1gb","estimated_size_in_bytes":776044,"estimated_size":"757.8kb","overhead":1.0,"tripped":0},"parent":{"limit_size_in_bytes":1020054732,"limit_size":"972.7mb","estimated_size_in_bytes":307052320,"estimated_size":"292.8mb","overhead":1.0,"tripped":0}},"script":{"compilations":4,"cache_evictions":0,"compilation_limit_triggered":0},"discovery":{"cluster_state_queue":{"total":0,"pending":0,"committed":0},"published_cluster_states":{"full_states":2,"incompatible_diffs":0,"compatible_diffs":168}},"ingest":{"total":{"count":0,"time_in_millis":0,"current":0,"failed":0},"pipelines":{"xpack_monitoring_6":{"count":0,"time_in_millis":0,"current":0,"failed":0,"processors":[{"script":{"type":"script","stats":{"count":0,"time_in_millis":0,"current":0,"failed":0}}},{"gsub":{"type":"gsub","stats":{"count":0,"time_in_millis":0,"current":0,"failed":0}}}]},"xpack_monitoring_7":{"count":0,"time_in_millis":0,"current":0,"failed":0,"processors":[]}}},"adaptive_selection":{"Pd95LNz9Q82S5Zh_w39pBQ":{"outgoing_searches":0,"avg_queue_size":0,"avg_service_time_ns":243406,"avg_response_time_ns":368320,"rank":"0.4"}},"script_cache":{"sum":{"compilations":4,"cache_evictions":0,"compilation_limit_triggered":0}}}}}st":0,"completed":0},"management":{"threads":5,"queue":0,"active":1,"rejected":0,"largest":5,"completed":2911934},"ml_datafeed":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"ml_job_comms":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"ml_utility":{"threads":2,"queue":0,"active":0,"rejected":0,"largest":2,"completed":619520},"refresh":{"threads":3,"queue":0,"active":0,"rejected":0,"largest":3,"completed":26128238},"rollup_indexing":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"search":{"threads":10,"queue":0,"active":0,"rejected":0,"largest":10,"completed":10395065},"search_throttled":{"threads":0,"queue":0,"active":0,"rejected":0,"largest":0,"completed":0},"security-token-key":{"threads":0,"queue":0,"active":0,"rejected":0
2020-09-17 20:45:57,493 [eshttp] DEBUG Response in Memory
2020-09-17 20:45:57,494 [pool-5-thread-2] DEBUG Failed to access Elasticsearch stats.
java.lang.NullPointerException: null
	at org.elasticsearch.ingest.IngestStats.toXContent(IngestStats.java:114) ~[elasticsearch-7.8.0.jar:7.8.0]
	at org.elasticsearch.action.admin.cluster.node.stats.NodeStats.toXContent(NodeStats.java:336) ~[elasticsearch-7.8.0.jar:7.8.0]
	at org.elasticsearch.action.admin.cluster.node.stats.NodesStatsResponse.toXContent(NodesStatsResponse.java:61) ~[elasticsearch-7.8.0.jar:7.8.0]
	at org.codelibs.fess.timer.SystemMonitorTarget.appendElasticsearchStats(SystemMonitorTarget.java:187) [classes/:?]
	at org.codelibs.fess.timer.SystemMonitorTarget.expired(SystemMonitorTarget.java:82) [classes/:?]
	at org.codelibs.core.timer.TimeoutTask.expired(TimeoutTask.java:113) [corelib-0.5.4.jar:?]
	at org.codelibs.core.timer.TimeoutManager.lambda$processTask$0(TimeoutManager.java:199) [corelib-0.5.4.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
	at java.lang.Thread.run(Thread.java:834) [?:?]
2020-09-17 20:45:57,494 [pool-5-thread-2] INFO  [SYSTEM MONITOR] {"os":{"memory":{"physical":{"free":1080147968,"total":21040566272},"swap_space":{"free":7548170240,"total":8588881920}},"cpu":{"percent":9},"load_averages":[0.6, 0.66, 0.63]},"process":{"file_descriptor":{"open":262,"max":65535},"cpu":{"percent":0,"total":1010500},"virtual_memory":{"total":4232818688}},"jvm":{"memory":{"heap":{"used":196135704,"committed":479199232,"max":536870912,"percent":36},"non_heap":{"used":142458592,"committed":195166208}},"pools":{"mapped":{"count":0,"used":0,"capacity":0},"direct":{"count":5,"used":510881,"capacity":510881}},"gc":{"young":{"count":5235,"time":28429},"old":{"count":18,"time":3307}},"threads":{"count":21,"peak":25},"classes":{"loaded":16062,"total_loaded":88807,"unloaded":72745},"uptime":9744215},"elasticsearch":null,"timestamp":1600368357494}
2020-09-17 20:45:57,782 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:45:57,782 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
2020-09-17 20:45:57,782 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1145350
2020-09-17 20:45:57,782 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:45:57,782 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:45:58,150 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:45:58,150 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
...

The java.lang.NullPointerException happened every Minute for [pool-5-thread-1], or [pool-5-thread-2], or [pool-5-thread-3]

2020-09-17 20:48:58,530 [pool-5-thread-2] DEBUG Failed to access Elasticsearch stats.
java.lang.NullPointerException: null
	at org.elasticsearch.ingest.IngestStats.toXContent(IngestStats.java:114) ~[elasticsearch-7.8.0.jar:7.8.0]
	at org.elasticsearch.action.admin.cluster.node.stats.NodeStats.toXContent(NodeStats.java:336) ~[elasticsearch-7.8.0.jar:7.8.0]
	at org.elasticsearch.action.admin.cluster.node.stats.NodesStatsResponse.toXContent(NodesStatsResponse.java:61) ~[elasticsearch-7.8.0.jar:7.8.0]
	at org.codelibs.fess.timer.SystemMonitorTarget.appendElasticsearchStats(SystemMonitorTarget.java:187) [classes/:?]
	at org.codelibs.fess.timer.SystemMonitorTarget.expired(SystemMonitorTarget.java:82) [classes/:?]
	at org.codelibs.core.timer.TimeoutTask.expired(TimeoutTask.java:113) [corelib-0.5.4.jar:?]
	at org.codelibs.core.timer.TimeoutManager.lambda$processTask$0(TimeoutManager.java:199) [corelib-0.5.4.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
	at java.lang.Thread.run(Thread.java:834) [?:?]
2020-09-17 20:48:58,531 [pool-5-thread-2] INFO  [SYSTEM MONITOR] {"os":{"memory":{"physical":{"free":1076768768,"total":21040566272},"swap_space":{"free":7548432384,"total":8588881920}},"cpu":{"percent":9},"load_averages":[0.51, 0.67, 0.64]},"process":{"file_descriptor":{"open":262,"max":65535},"cpu":{"percent":0,"total":1011500},"virtual_memory":{"total":4232818688}},"jvm":{"memory":{"heap":{"used":199465496,"committed":479199232,"max":536870912,"percent":37},"non_heap":{"used":142502600,"committed":195166208}},"pools":{"mapped":{"count":0,"used":0,"capacity":0},"direct":{"count":5,"used":510881,"capacity":510881}},"gc":{"young":{"count":5239,"time":28442},"old":{"count":18,"time":3307}},"threads":{"count":21,"peak":25},"classes":{"loaded":16062,"total_loaded":88807,"unloaded":72745},"uptime":9925250},"elasticsearch":null,"timestamp":1600368538531}

Between the exceptions is every time the same content, just for other Jira URLs:

2020-09-17 20:48:58,680 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:48:58,680 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
2020-09-17 20:48:58,680 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1173600
2020-09-17 20:48:58,680 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:48:58,680 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:48:59,078 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:48:59,078 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
2020-09-17 20:48:59,079 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1173650
2020-09-17 20:48:59,079 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:48:59,079 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:48:59,402 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:48:59,402 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory
2020-09-17 20:48:59,403 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> GET https://test.environment:87777/jira/rest/api/latest/search?maxResults=50&fields=summary%2Cdescription%2Cupdated&startAt=1173700
2020-09-17 20:48:59,403 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG >>> Authorization=Basic cmg6MTNrbDk5ZGVzNTQh
2020-09-17 20:48:59,403 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG connectionTimeout: 10000, readTimeout: 10000
2020-09-17 20:48:59,681 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG <<< {"startAt":0,"maxResults":50,"total":15404,"issues":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
2020-09-17 20:48:59,681 [Ga1RQ3QBUxhlljYOKf80-1] DEBUG Response in Memory

I think NPE is other problem. It’s better to check elasticsearch log.

I checked Elasticsearch Logs for the day of Jira Crawling and found no Error Logs…

The only stuff i found are Info and Warns which are not critical.

I checked also if i could found maybe a log, when it throws a the NPE, there was nothing…

Full output of elasticsearch-2020-09-17-1.log, the day of Jira Crawling:

[2020-09-17T01:30:00,081][INFO ][o.e.x.m.MlDailyMaintenanceService] [node-1] triggering scheduled [ML] maintenance tasks
[2020-09-17T01:30:00,636][INFO ][o.e.x.m.a.TransportDeleteExpiredDataAction] [node-1] Deleting expired data
[2020-09-17T01:30:01,130][INFO ][o.e.x.m.a.TransportDeleteExpiredDataAction] [node-1] Completed deletion of expired ML data
[2020-09-17T01:30:01,158][INFO ][o.e.x.m.MlDailyMaintenanceService] [node-1] Successfully completed [ML] maintenance tasks
[2020-09-17T03:30:00,312][INFO ][o.e.x.s.SnapshotRetentionTask] [node-1] starting SLM retention snapshot cleanup task
[2020-09-17T03:30:00,316][INFO ][o.e.x.s.SnapshotRetentionTask] [node-1] there are no repositories to fetch, SLM retention snapshot cleanup task complete
[2020-09-17T12:01:09,417][INFO ][o.e.c.m.MetadataCreateIndexService] [node-1] [fess.suggest.20200917120104] creating index, cause [api], templates [], shards [1]/[0], mappings [_doc]
[2020-09-17T12:01:17,181][INFO ][o.e.c.m.MetadataMappingService] [node-1] [fess.suggest.20200917120104/_eAYebqHQdSe0Ii78fhACw] update_mapping [_doc]
[2020-09-17T12:32:07,011][INFO ][o.e.c.m.MetadataMappingService] [node-1] [fess.suggest.20200917120104/_eAYebqHQdSe0Ii78fhACw] update_mapping [_doc]
[2020-09-17T12:32:08,040][INFO ][o.e.c.m.MetadataMappingService] [node-1] [fess.suggest.20200917120104/_eAYebqHQdSe0Ii78fhACw] update_mapping [_doc]
[2020-09-17T12:32:10,665][INFO ][o.e.c.m.MetadataDeleteIndexService] [node-1] [fess.suggest.20200916120040/hGnFLzwmRtabYnWDED6-Uw] deleting index
[2020-09-17T17:26:40,987][WARN ][o.e.m.j.JvmGcMonitorService] [node-1] [gc][young][607570][5651] duration [29.7s], collections [1]/[31s], total [29.7s]/[3.7m], memory [738.9mb]->[229.9mb]/[1gb], all_pools {[young] [510mb]->[2mb]/[0b]}{[old] [224.3mb]->[224.4mb]/[1gb]}{[survivor] [4.5mb]->[3.5mb]/[0b]}
[2020-09-17T17:26:41,226][WARN ][o.e.m.j.JvmGcMonitorService] [node-1] [gc][607570] overhead, spent [29.7s] collecting in the last [31s]
[2020-09-17T18:00:26,304][INFO ][o.e.m.j.JvmGcMonitorService] [node-1] [gc][609593] overhead, spent [399ms] collecting in the last [1.2s]
[2020-09-17T18:00:30,632][WARN ][o.e.m.j.JvmGcMonitorService] [node-1] [gc][609596] overhead, spent [562ms] collecting in the last [1s]
[2020-09-17T18:00:36,825][INFO ][o.e.m.j.JvmGcMonitorService] [node-1] [gc][young][609600][5676] duration [1.7s], collections [2]/[2.7s], total [1.7s]/[3.7m], memory [382.3mb]->[237.2mb]/[1gb], all_pools {[young] [106mb]->[0b]/[0b]}{[old] [273.5mb]->[236mb]/[1gb]}{[survivor] [2.8mb]->[1.2mb]/[0b]}
[2020-09-17T18:00:36,825][WARN ][o.e.m.j.JvmGcMonitorService] [node-1] [gc][609600] overhead, spent [1.7s] collecting in the last [2.7s]

I started Jira Crawling with timeout options at:

2020-09-17 18:03:42,063

There arent any Logs inside Elasticsearch for Jira Crawling with timeout options…

2020-09-17 20:48:58,530 [pool-5-thread-2] DEBUG Failed to access Elasticsearch stats.

Ah, it’s debug log. So, you can ignore NPE.