お世話になります
Fess 14.8/opensearch 2.7 のDocker版を使用させていただいています。
ファイルサーバーに対するクロールで、クロール開始直後は順調にインデックスが作成(200件超/分)されていくのですが、5分を過ぎたところから、クロール対象ファイルがまだ大量ににあるにもかかわらず、数分毎(※)に1ファイルしかインデックスが作成されない事象が発生しています。
※数分毎の間隔は、5分毎/10分毎/15分毎/20分毎/25分毎等さまざま
以下は、インデックス作成が低速に切り替わる直後のログの抜粋なのですが、10秒起きにqueueを見に行くが空振りという状況が延々と続き、たまにインデックス作成が成功、また空振りが続くように見えます。
T00:05:16.871Z","log.level": "INFO","message":"Processing 10/23 docs
T00:05:16.959Z","log.level": "INFO","message":"Processing 9/13 docs
T00:05:17.817Z","log.level": "INFO","message":"Sent 32 docs
T00:05:17.910Z","log.level": "INFO","message":"Processing 4/4 docs
T00:05:17.954Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:05:18.315Z","log.level": "INFO","message":"Sent 10 docs
T00:05:18.319Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:05:28.320Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:05:30.791Z","log.level": "INFO","message":"[SYSTEM MONITOR] {\"os\":{\"memory\":
T00:05:38.321Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:05:48.321Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:05:58.325Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:06:08.323Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:06:18.323Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:06:28.324Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:06:31.799Z","log.level": "INFO","message":"[SYSTEM MONITOR] {\"os\":{\"memory\":
T00:06:38.325Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:06:48.325Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:06:58.326Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:07:08.326Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:07:18.327Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:07:28.328Z","log.level": "INFO","message":"Processing no docs in indexing queue
~ (上記繰り返し)
T00:30:44.159Z","log.level": "INFO","message":"Crawling URL: smb://hostaddr/第一階層/第二階層/第三階層/第四階層/第四階層/ファイル名.xls", "ecs.version": "1.2.0","service.name":"fess","event.dataset":"crawler","process.thread.name":"Crawler-20230628235314-1-4","log.logger":"org.codelibs.fess.crawler.helper.impl.LogHelperImpl"}
T00:30:48.407Z","log.level": "INFO","message":"Processing 1/1 docs
T00:30:48.424Z","log.level": "INFO","message":"Processing no docs in indexing queue
T00:30:48.448Z","log.level": "INFO","message":"Sent 1 docs
後半のペースでは、対象ファイルのインデックス作成が何日かけても終了しない見込みです。
インデックス作成速度が低下する原因・回避策等、ご教示いただけないでしょうか?
他には、poi関係のWARNログは書かれているのですが、原因に結び付きそうなログは見当たりませんでした