インデックス削除後、ファイルクロールが完了しません。

FESS ver 13.4.5.1
elastic ver 7.4.2.1
RHEL 7.7

FESSのダッシュボードからインデックスを削除したのち、デフォルトクローラや、ファイルクロールのジョブを実行すると、必ず失敗する事象が発生しています。

systemctl restart fessでが解決されます。

期待する動作は、restartせずともクロールが完了することですが、仕様であれば問題ありません。

そのほかの動作・機能については今のところ、問題ないです。

仕様でなければ、解決方法・設定の不備などをご指摘いただければと存じます。

ジョブ失敗時のログ(fess-crawler.log)
2020-04-23 16:13:07,662 [main] INFO …Loading specified properties and get by the key: fess_env_crawler.properties, lasta_di.smart.deploy.mode
2020-04-23 16:13:07,667 [main] INFO …Setting smart deploy mode: warm
2020-04-23 16:13:07,695 [main] INFO …Reading lasta_di.xml
2020-04-23 16:13:07,732 [main] INFO …Reading redefiner.xml
2020-04-23 16:13:07,782 [main] INFO …Reading smartdeploy.xml
2020-04-23 16:13:07,818 [main] INFO …Reading smart/warmdeploy.xml
2020-04-23 16:13:07,823 [main] INFO …Reading convention.xml
2020-04-23 16:13:07,827 [main] INFO …Reading embedded_convention.xml
2020-04-23 16:13:07,839 [main] INFO …Reading creator.xml
2020-04-23 16:13:07,843 [main] INFO …Reading convention.xml (recycle)
2020-04-23 16:13:07,843 [main] INFO …Reading customizer.xml
2020-04-23 16:13:07,847 [main] INFO …Reading lastafw_customizer.xml
2020-04-23 16:13:07,857 [main] INFO …Reading embedded_customizer.xml
2020-04-23 16:13:07,862 [main] INFO …Reading tx_customizer.xml
2020-04-23 16:13:07,875 [main] INFO …Reading my_creator.xml
2020-04-23 16:13:07,882 [main] INFO …Reading lastafw_creator.xml
2020-04-23 16:13:07,886 [main] INFO …Reading convention.xml (recycle)
2020-04-23 16:13:07,886 [main] INFO …Reading customizer.xml (recycle)
2020-04-23 16:13:07,897 [main] INFO …Reading embedded_creator.xml
2020-04-23 16:13:07,902 [main] INFO …Reading convention.xml (recycle)
2020-04-23 16:13:07,902 [main] INFO …Reading customizer.xml (recycle)
2020-04-23 16:13:07,908 [main] INFO …Reading customizer.xml (recycle)
2020-04-23 16:13:07,931 [main] INFO …Reading app.xml
2020-04-23 16:13:07,936 [main] INFO …Reading convention.xml
2020-04-23 16:13:07,940 [main] INFO …Reading embedded_convention.xml
2020-04-23 16:13:07,949 [main] INFO …Reading lastaflute_core.xml
2020-04-23 16:13:07,953 [main] INFO …Reading lastaflute_assist.xml
2020-04-23 16:13:07,957 [main] INFO …Reading lastaflute_director.xml
2020-04-23 16:13:08,056 [main] INFO …Reading fess.xml
2020-04-23 16:13:08,059 [main] INFO …Reading fess_config.xml
2020-04-23 16:13:08,066 [main] INFO …Reading fess_ds.xml
2020-04-23 16:13:08,074 [main] INFO …Reading jar:file:/usr/share/fess/app/WEB-INF/plugin/fess-ds-csv-13.4.0.jar!/fess_ds++.xml
2020-04-23 16:13:08,089 [main] INFO …Reading jar:file:/usr/share/fess/app/WEB-INF/plugin/fess-ds-db-13.4.0.jar!/fess_ds++.xml
2020-04-23 16:13:08,095 [main] INFO …Reading esflute_config.xml
2020-04-23 16:13:08,098 [main] INFO …Reading esclient.xml
2020-04-23 16:13:08,292 [main] INFO …Reading esflute_user.xml
2020-04-23 16:13:08,295 [main] INFO …Reading esclient.xml (recycle)
2020-04-23 16:13:08,314 [main] INFO …Reading esflute_log.xml
2020-04-23 16:13:08,317 [main] INFO …Reading esclient.xml (recycle)
2020-04-23 16:13:09,539 [main] INFO …Reading crawler_es.xml
2020-04-23 16:13:09,545 [main] INFO …Reading crawler/container.xml
2020-04-23 16:13:09,550 [main] INFO …Reading crawler/client.xml
2020-04-23 16:13:09,553 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,553 [main] INFO …Reading crawler/robotstxt.xml
2020-04-23 16:13:09,556 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,560 [main] INFO …Reading crawler/contentlength.xml
2020-04-23 16:13:09,562 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,563 [main] INFO …Reading crawler/mimetype.xml
2020-04-23 16:13:09,566 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,640 [main] INFO …Reading crawler/rule.xml
2020-04-23 16:13:09,644 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,644 [main] INFO …Reading crawler/transformer.xml
2020-04-23 16:13:09,647 [main] INFO …Reading crawler/transformer_basic.xml
2020-04-23 16:13:09,651 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,682 [main] INFO …Reading crawler/filter.xml
2020-04-23 16:13:09,685 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,688 [main] INFO …Reading crawler/interval.xml
2020-04-23 16:13:09,691 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,693 [main] INFO …Reading crawler/extractor.xml
2020-04-23 16:13:09,696 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,708 [main] INFO …Reading crawler/extractor+tikaExtractor.xml
2020-04-23 16:13:09,710 [main] INFO …Reading crawler/container.xml
2020-04-23 16:13:09,752 [main] INFO …Reading crawler/mimetype.xml (recycle)
2020-04-23 16:13:09,752 [main] INFO …Reading crawler/encoding.xml
2020-04-23 16:13:09,755 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,756 [main] INFO …Reading crawler/urlconverter.xml
2020-04-23 16:13:09,759 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,760 [main] INFO …Reading crawler/log.xml
2020-04-23 16:13:09,763 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,766 [main] INFO …Reading crawler/sitemaps.xml
2020-04-23 16:13:09,769 [main] INFO …Reading crawler/container.xml (recycle)
2020-04-23 16:13:09,771 [main] INFO …Reading crawler/es.xml
2020-04-23 16:13:09,784 [main] INFO …Reading crawler_es+crawlerThread.xml
2020-04-23 16:13:09,803 [main] INFO …Reading crawler_es+crawlerConfig.xml
2020-04-23 16:13:09,807 [main] INFO …Reading fess_thumbnail.xml
2020-04-23 16:13:09,978 [main] INFO [Objective Config]
2020-04-23 16:13:09,980 [main] INFO fess_config.properties extends [fess_env_crawler.properties]
2020-04-23 16:13:09,980 [main] INFO checkImplicitOverride=true, propertyCount=448
2020-04-23 16:13:10,023 [main] INFO [Exception Translator]
2020-04-23 16:13:10,023 [main] INFO exceptionTranslationProvider: null
2020-04-23 16:13:10,024 [main] INFO [Async Manager]
2020-04-23 16:13:10,024 [main] INFO defaultConcurrentAsyncOption: {no option}
2020-04-23 16:13:10,024 [main] INFO primaryExecutorService: ThreadPoolExecutor@32f96bba
2020-04-23 16:13:10,024 [main] INFO secondaryExecutorService: ThreadPoolExecutor@611640f0
2020-04-23 16:13:10,024 [main] INFO tertiaryExecutorService: ThreadPoolExecutor@67e25252
2020-04-23 16:13:10,024 [main] INFO [Primary Cipher]
2020-04-23 16:13:10,024 [main] INFO invertibleCryptographer: {AES, UTF-8}
2020-04-23 16:13:10,024 [main] INFO oneWayCryptographer: {SHA-256, UTF-8}
2020-04-23 16:13:10,026 [main] INFO [Time Manager]
2020-04-23 16:13:10,026 [main] INFO businessTimeHandler: TypicalBusinessTimeHandler:{TypicalTimeResourceProvider$$Lambda$117/0x000000084039c040, TypicalTimeResourceProvider$$Lambda$118/0x000000084039c440}
2020-04-23 16:13:10,026 [main] INFO currentIgnoreTransaction: false
2020-04-23 16:13:10,026 [main] INFO adjustTimeMillis: 0
2020-04-23 16:13:10,026 [main] INFO adjustAbsoluteMode: false
2020-04-23 16:13:10,070 [main] INFO [JSON Manager]
2020-04-23 16:13:10,071 [main] INFO realJsonParser: GsonJsonEngine
2020-04-23 16:13:10,074 [main] INFO mapping: {CAMEL_TO_LOWER_SNAKE}
2020-04-23 16:13:10,075 [main] INFO [Postbox]
2020-04-23 16:13:10,075 [main] INFO postOffice: PostOffice@65f40689
2020-04-23 16:13:10,075 [main] INFO postalParkingLot: SMailPostalParkingLot:{{category:{main}=motorbike:{session=javax.mail.Session@29be997f}}}@33eb6758
2020-04-23 16:13:10,075 [main] INFO postalPersonnel: FessMailDeliveryDepartmentCreator$1:{SMailConventionReceptionist:{[]}@f8a6243, batch:{[proofreader:{pmcomment}]}}@4a8ffd75
2020-04-23 16:13:10,386 [main] INFO ConfigSync is ready.
2020-04-23 16:13:10,450 [main] INFO Register mapping.txt to fess
2020-04-23 16:13:10,484 [main] INFO Register synonym.txt to fess
2020-04-23 16:13:10,516 [main] INFO Register ar/protwords.txt to fess
2020-04-23 16:13:10,551 [main] INFO Register ca/protwords.txt to fess
2020-04-23 16:13:10,582 [main] INFO Register ckb-iq/protwords.txt to fess
2020-04-23 16:13:10,615 [main] INFO Register cs/protwords.txt to fess
2020-04-23 16:13:10,656 [main] INFO Register da/protwords.txt to fess
2020-04-23 16:13:10,692 [main] INFO Register de/protwords.txt to fess
2020-04-23 16:13:10,726 [main] INFO Register el/protwords.txt to fess
2020-04-23 16:13:10,765 [main] INFO Register en/protwords.txt to fess
2020-04-23 16:13:10,799 [main] INFO Register en-ie/protwords.txt to fess
2020-04-23 16:13:10,834 [main] INFO Register es/protwords.txt to fess
2020-04-23 16:13:10,866 [main] INFO Register eu/protwords.txt to fess
2020-04-23 16:13:10,898 [main] INFO Register fa/mapping.txt to fess
2020-04-23 16:13:10,936 [main] INFO Register fa/protwords.txt to fess
2020-04-23 16:13:10,970 [main] INFO Register fi/protwords.txt to fess
2020-04-23 16:13:11,006 [main] INFO Register fr/protwords.txt to fess
2020-04-23 16:13:11,037 [main] INFO Register gl/protwords.txt to fess
2020-04-23 16:13:11,072 [main] INFO Register hi/protwords.txt to fess
2020-04-23 16:13:11,104 [main] INFO Register hu/protwords.txt to fess
2020-04-23 16:13:11,138 [main] INFO Register hy/protwords.txt to fess
2020-04-23 16:13:11,171 [main] INFO Register id/protwords.txt to fess
2020-04-23 16:13:11,203 [main] INFO Register it/protwords.txt to fess
2020-04-23 16:13:11,239 [main] INFO Register ja/kuromoji.txt to fess
2020-04-23 16:13:11,274 [main] INFO Register ja/mapping.txt to fess
2020-04-23 16:13:11,309 [main] INFO Register ko/nori.txt to fess
2020-04-23 16:13:11,340 [main] INFO Register lt/protwords.txt to fess
2020-04-23 16:13:11,370 [main] INFO Register lv/protwords.txt to fess
2020-04-23 16:13:11,401 [main] INFO Register nl/protwords.txt to fess
2020-04-23 16:13:11,432 [main] INFO Register no/protwords.txt to fess
2020-04-23 16:13:11,509 [main] INFO Register pt-br/protwords.txt to fess
2020-04-23 16:13:11,545 [main] INFO Register pt/protwords.txt to fess
2020-04-23 16:13:11,585 [main] INFO Register ro/protwords.txt to fess
2020-04-23 16:13:11,618 [main] INFO Register ru/protwords.txt to fess
2020-04-23 16:13:11,657 [main] INFO Register sv/protwords.txt to fess
2020-04-23 16:13:11,690 [main] INFO Register th/protwords.txt to fess
2020-04-23 16:13:11,722 [main] INFO Register tr/protwords.txt to fess
2020-04-23 16:13:11,762 [main] INFO Register ar/stopwords.txt to fess
2020-04-23 16:13:11,805 [main] INFO Register bg/stopwords.txt to fess
2020-04-23 16:13:11,840 [main] INFO Register ca/stopwords.txt to fess
2020-04-23 16:13:11,875 [main] INFO Register ckb-iq/stopwords.txt to fess
2020-04-23 16:13:11,906 [main] INFO Register cs/stopwords.txt to fess
2020-04-23 16:13:11,943 [main] INFO Register da/stopwords.txt to fess
2020-04-23 16:13:11,981 [main] INFO Register de/stopwords.txt to fess
2020-04-23 16:13:12,016 [main] INFO Register el/stopwords.txt to fess
2020-04-23 16:13:12,055 [main] INFO Register en/stopwords.txt to fess
2020-04-23 16:13:12,089 [main] INFO Register en-ie/stopwords.txt to fess
2020-04-23 16:13:12,127 [main] INFO Register es/stopwords.txt to fess
2020-04-23 16:13:12,162 [main] INFO Register eu/stopwords.txt to fess
2020-04-23 16:13:12,194 [main] INFO Register fa/stopwords.txt to fess
2020-04-23 16:13:12,231 [main] INFO Register fi/stopwords.txt to fess
2020-04-23 16:13:12,268 [main] INFO Register fr/stopwords.txt to fess
2020-04-23 16:13:12,303 [main] INFO Register gl/stopwords.txt to fess
2020-04-23 16:13:12,335 [main] INFO Register hi/stopwords.txt to fess
2020-04-23 16:13:12,373 [main] INFO Register hu/stopwords.txt to fess
2020-04-23 16:13:12,404 [main] INFO Register hy/stopwords.txt to fess
2020-04-23 16:13:12,440 [main] INFO Register id/stopwords.txt to fess
2020-04-23 16:13:12,478 [main] INFO Register it/stopwords.txt to fess
2020-04-23 16:13:12,510 [main] INFO Register ja/stopwords.txt to fess
2020-04-23 16:13:12,553 [main] INFO Register ko/stopwords.txt to fess
2020-04-23 16:13:12,590 [main] INFO Register lt/stopwords.txt to fess
2020-04-23 16:13:12,630 [main] INFO Register lv/stopwords.txt to fess
2020-04-23 16:13:12,671 [main] INFO Register nl/stopwords.txt to fess
2020-04-23 16:13:12,706 [main] INFO Register no/stopwords.txt to fess
2020-04-23 16:13:12,742 [main] INFO Register pt-br/stopwords.txt to fess
2020-04-23 16:13:12,777 [main] INFO Register pt/stopwords.txt to fess
2020-04-23 16:13:12,810 [main] INFO Register ro/stopwords.txt to fess
2020-04-23 16:13:12,848 [main] INFO Register ru/stopwords.txt to fess
2020-04-23 16:13:12,891 [main] INFO Register sv/stopwords.txt to fess
2020-04-23 16:13:12,928 [main] INFO Register th/stopwords.txt to fess
2020-04-23 16:13:12,970 [main] INFO Register tr/stopwords.txt to fess
2020-04-23 16:13:13,005 [main] INFO Register vi/stopwords.txt to fess
2020-04-23 16:13:13,040 [main] INFO Register zh-cn/stopwords.txt to fess
2020-04-23 16:13:13,074 [main] INFO Register zh-tw/stopwords.txt to fess
2020-04-23 16:13:13,107 [main] INFO Register ar/stemmer_override.txt to fess
2020-04-23 16:13:13,143 [main] INFO Register bg/stemmer_override.txt to fess
2020-04-23 16:13:13,176 [main] INFO Register ca/stemmer_override.txt to fess
2020-04-23 16:13:13,210 [main] INFO Register ckb-iq/stemmer_override.txt to fess
2020-04-23 16:13:13,242 [main] INFO Register cs/stemmer_override.txt to fess
2020-04-23 16:13:13,278 [main] INFO Register da/stemmer_override.txt to fess
2020-04-23 16:13:13,309 [main] INFO Register de/stemmer_override.txt to fess
2020-04-23 16:13:13,340 [main] INFO Register el/stemmer_override.txt to fess
2020-04-23 16:13:13,370 [main] INFO Register en/stemmer_override.txt to fess
2020-04-23 16:13:13,401 [main] INFO Register en-ie/stemmer_override.txt to fess
2020-04-23 16:13:13,432 [main] INFO Register es/stemmer_override.txt to fess
2020-04-23 16:13:13,464 [main] INFO Register eu/stemmer_override.txt to fess
2020-04-23 16:13:13,494 [main] INFO Register fi/stemmer_override.txt to fess
2020-04-23 16:13:13,524 [main] INFO Register fr/stemmer_override.txt to fess
2020-04-23 16:13:13,559 [main] INFO Register gl/stemmer_override.txt to fess
2020-04-23 16:13:13,593 [main] INFO Register hi/stemmer_override.txt to fess
2020-04-23 16:13:13,621 [main] INFO Register hu/stemmer_override.txt to fess
2020-04-23 16:13:13,658 [main] INFO Register hy/stemmer_override.txt to fess
2020-04-23 16:13:13,686 [main] INFO Register id/stemmer_override.txt to fess
2020-04-23 16:13:13,713 [main] INFO Register it/stemmer_override.txt to fess
2020-04-23 16:13:13,745 [main] INFO Register lt/stemmer_override.txt to fess
2020-04-23 16:13:13,777 [main] INFO Register lv/stemmer_override.txt to fess
2020-04-23 16:13:13,809 [main] INFO Register nl/stemmer_override.txt to fess
2020-04-23 16:13:13,842 [main] INFO Register no/stemmer_override.txt to fess
2020-04-23 16:13:13,871 [main] INFO Register pt-br/stemmer_override.txt to fess
2020-04-23 16:13:13,900 [main] INFO Register pt/stemmer_override.txt to fess
2020-04-23 16:13:13,929 [main] INFO Register ro/stemmer_override.txt to fess
2020-04-23 16:13:13,958 [main] INFO Register ru/stemmer_override.txt to fess
2020-04-23 16:13:13,991 [main] INFO Register sv/stemmer_override.txt to fess
2020-04-23 16:13:14,019 [main] INFO Register tr/stemmer_override.txt to fess
2020-04-23 16:13:14,159 [main] INFO Flushed config files.
2020-04-23 16:13:14,467 [main] WARN fess_indices/fess.json is not found.
org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=illegal_argument_exception, reason=IOException while reading mappings_path: /etc/elasticsearch/ja/mapping.txt]
at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:177) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.codelibs.elasticsearch.client.action.HttpAction.toElasticsearchException(HttpAction.java:138) ~[elasticsearch-httpclient-7.4.1.jar:?]
at org.codelibs.elasticsearch.client.action.HttpCreateIndexAction.lambda$execute$0(HttpCreateIndexAction.java:70) ~[elasticsearch-httpclient-7.4.1.jar:?]
at org.codelibs.curl.CurlRequest.lambda$execute$4(CurlRequest.java:220) ~[curl4j-1.2.4.jar:?]
at org.codelibs.curl.CurlRequest.lambda$connect$3(CurlRequest.java:199) ~[curl4j-1.2.4.jar:?]
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426) ~[?:?]
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?]
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) ~[?:?]
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) ~[?:?]
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) ~[?:?]
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177) ~[?:?]
Suppressed: java.lang.IllegalArgumentException: Required [acknowledged, shards_acknowledged, index]
at org.elasticsearch.common.xcontent.ConstructingObjectParser$Target.finish(ConstructingObjectParser.java:446) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.common.xcontent.ConstructingObjectParser$Target.access$000(ConstructingObjectParser.java:350) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.common.xcontent.ConstructingObjectParser.parse(ConstructingObjectParser.java:169) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.common.xcontent.ConstructingObjectParser.apply(ConstructingObjectParser.java:161) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.action.admin.indices.create.CreateIndexResponse.fromXContent(CreateIndexResponse.java:85) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.codelibs.elasticsearch.client.action.HttpCreateIndexAction.lambda$execute$0(HttpCreateIndexAction.java:67) ~[elasticsearch-httpclient-7.4.1.jar:?]
at org.codelibs.curl.CurlRequest.lambda$execute$4(CurlRequest.java:220) ~[curl4j-1.2.4.jar:?]
at org.codelibs.curl.CurlRequest.lambda$connect$3(CurlRequest.java:199) ~[curl4j-1.2.4.jar:?]
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426) ~[?:?]
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?]
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) ~[?:?]
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) ~[?:?]
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) ~[?:?]
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177) ~[?:?]
Suppressed: org.codelibs.elasticsearch.client.action.HttpAction$CurlResponseException: {“error”:{“root_cause”:[{“type”:“illegal_argument_exception”,“reason”:“IOException while reading mappings_path: /etc/elasticsearch/ja/mapping.txt”}],“type”:“illegal_argument_exception”,“reason”:“IOException while reading mappings_path: /etc/elasticsearch/ja/mapping.txt”,“caused_by”:{“type”:“no_such_file_exception”,“reason”:"/etc/elasticsearch/ja/mapping.txt"}},“status”:400}
Caused by: org.elasticsearch.ElasticsearchException: Elasticsearch exception [type=no_such_file_exception, reason=/etc/elasticsearch/ja/mapping.txt]
at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:491) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.elasticsearch.ElasticsearchException.fromXContent(ElasticsearchException.java:402) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:432) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.elasticsearch.ElasticsearchException.failureFromXContent(ElasticsearchException.java:598) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:169) ~[elasticsearch-7.4.2.jar:7.4.2]
… 10 more
2020-04-23 16:13:14,490 [main] WARN fess_indices/fess/alias is not found.
org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=index_not_found_exception, reason=no such index [fess.20200423]]
at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:177) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.codelibs.elasticsearch.client.action.HttpAction.toElasticsearchException(HttpAction.java:138) ~[elasticsearch-httpclient-7.4.1.jar:?]
at org.codelibs.elasticsearch.client.action.HttpIndicesAliasesAction.lambda$execute$0(HttpIndicesAliasesAction.java:71) ~[elasticsearch-httpclient-7.4.1.jar:?]
at org.codelibs.curl.CurlRequest.lambda$execute$4(CurlRequest.java:220) ~[curl4j-1.2.4.jar:?]
at org.codelibs.curl.CurlRequest.lambda$connect$3(CurlRequest.java:199) ~[curl4j-1.2.4.jar:?]
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426) ~[?:?]
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?]
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) ~[?:?]
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) ~[?:?]
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) ~[?:?]
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177) ~[?:?]
Suppressed: java.lang.IllegalArgumentException: Required [acknowledged]
at org.elasticsearch.common.xcontent.ConstructingObjectParser$Target.finish(ConstructingObjectParser.java:446) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.common.xcontent.ConstructingObjectParser$Target.access$000(ConstructingObjectParser.java:350) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.common.xcontent.ConstructingObjectParser.parse(ConstructingObjectParser.java:169) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.common.xcontent.ConstructingObjectParser.apply(ConstructingObjectParser.java:161) ~[elasticsearch-x-content-7.4.2.jar:7.4.2]
at org.elasticsearch.action.support.master.AcknowledgedResponse.fromXContent(AcknowledgedResponse.java:104) ~[elasticsearch-7.4.2.jar:7.4.2]
at org.codelibs.elasticsearch.client.action.HttpIndicesAliasesAction.lambda$execute$0(HttpIndicesAliasesAction.java:68) ~[elasticsearch-httpclient-7.4.1.jar:?]
at org.codelibs.curl.CurlRequest.lambda$execute$4(CurlRequest.java:220) ~[curl4j-1.2.4.jar:?]
at org.codelibs.curl.CurlRequest.lambda$connect$3(CurlRequest.java:199) ~[curl4j-1.2.4.jar:?]
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426) ~[?:?]
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?]
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) ~[?:?]
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) ~[?:?]
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) ~[?:?]
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177) ~[?:?]
Suppressed: org.codelibs.elasticsearch.client.action.HttpAction$CurlResponseException: {“error”:{“root_cause”:[{“type”:“index_not_found_exception”,“reason”:“no such index [fess.20200423]”,“resource.type”:“index_or_alias”,“resource.id”:“fess.20200423”,“index_uuid”:“na”,“index”:“fess.20200423”}],“type”:“index_not_found_exception”,“reason”:“no such index [fess.20200423]”,“resource.type”:“index_or_alias”,“resource.id”:“fess.20200423”,“index_uuid”:“na”,“index”:“fess.20200423”},“status”:404}
2020-04-23 16:13:14,502 [main] ERROR Crawler does not work correctly.
org.lastaflute.di.exception.ContainerInitFailureException: Look! Read the message below.
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Failed to initialize the container.

[Path]
esclient.xml

[Namespace]
null

[Included by]
esflute_config.xml
esflute_user.xml
esflute_log.xml

                  • */
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.throwContainerInitFailureException(LaContainerImpl.java:463) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.init(LaContainerImpl.java:415) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.doInit(LaContainerImpl.java:431) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.init(LaContainerImpl.java:413) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.doInit(LaContainerImpl.java:431) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.init(LaContainerImpl.java:413) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.doInit(LaContainerImpl.java:431) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.init(LaContainerImpl.java:413) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.factory.SingletonLaContainerFactory.init(SingletonLaContainerFactory.java:66) ~[lasta-di-0.8.0.jar:?]
                    at org.codelibs.fess.exec.Crawler.main(Crawler.java:221) [classes/:?]
                    Caused by: org.lastaflute.di.core.exception.IllegalMethodRuntimeException: [ESSR0060]Can not configure method(open) of org.codelibs.fess.es.client.FessEsClient, because [fess.20200423] IndexNotFoundException[no such index [fess.20200423]]
                    at org.lastaflute.di.core.assembler.AbstractMethodAssembler.invoke(AbstractMethodAssembler.java:61) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.assembler.DefaultInitMethodAssembler.assemble(DefaultInitMethodAssembler.java:40) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.deployer.SingletonComponentDeployer.assemble(SingletonComponentDeployer.java:57) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.deployer.SingletonComponentDeployer.deploy(SingletonComponentDeployer.java:41) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.deployer.SingletonComponentDeployer.init(SingletonComponentDeployer.java:35) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.ComponentDefImpl.init(ComponentDefImpl.java:85) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.doInit(LaContainerImpl.java:434) ~[lasta-di-0.8.0.jar:?]
                    at org.lastaflute.di.core.meta.impl.LaContainerImpl.init(LaContainerImpl.java:413) ~[lasta-di-0.8.0.jar:?]
                    … 8 more
                    Caused by: org.elasticsearch.index.IndexNotFoundException: no such index [fess.20200423]
                    at org.codelibs.elasticsearch.client.action.HttpGetMappingsAction.lambda$execute$0(HttpGetMappingsAction.java:47) ~[elasticsearch-httpclient-7.4.1.jar:?]
                    at org.codelibs.curl.CurlRequest.lambda$execute$4(CurlRequest.java:220) ~[curl4j-1.2.4.jar:?]
                    at org.codelibs.curl.CurlRequest.lambda$connect$3(CurlRequest.java:199) ~[curl4j-1.2.4.jar:?]
                    at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426) ~[?:?]
                    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?]
                    at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1op020) ~[?:?]
                    at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) ~[?:?]
                    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) ~[?:?]
                    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177) ~[?:?]
                    2020-04-23 16:13:14,507 [main] INFO Destroyed LaContainer.

FESSのダッシュボードからインデックスを削除した

はなぜ必要なのでしょうか?この操作は破壊的な操作になるので、目的を持って行っていない場合は再起動しないと復旧しないと思います。

ファイルクロールの設定値を複数パターン試す目的で、一回のインデックスジョブを実行後に検索結果を確認し、インデックスを削除していました。(1日1回のインデックス削除では時間がかかるため)

設定の不備でこのような事象が起きたことを懸念していました。
restartをかければ、全く問題ありませんので、restartが必須という結論でクローズしたいと思います。

インデックスされたものを削除したい場合は、一括削除を参照してください。

ご回答ありがとうございました!問題が解決しました。