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https://issues.apache.org/jira/browse/NIFI-9572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17528840#comment-17528840
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Marcus Ely commented on NIFI-9572:
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Our team has also had this issue since we upgraded from 1.13 to 1.15, and we
have no way of fixing it besides restarting NiFi on the node reporting 'Too
many open files'. This is always temporary, and the issue comes back maybe
after 1 day. Our ulimit is set properly, and again, this was never an issue
until we did that upgrade.
> Failed to index Provenance Events and (Too many Files)
> ------------------------------------------------------
>
> Key: NIFI-9572
> URL: https://issues.apache.org/jira/browse/NIFI-9572
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core UI
> Affects Versions: 1.15.2
> Reporter: mayki
> Priority: Major
> Attachments: bootstrap.conf, nifi-app.log, nifi-app.log.tar.gz,
> nifi.properties, nifi_691106_pid.tar.gz
>
>
> Hello
> I have upgraded NIFI 1.15.2 since 2022/01/05
> No issue until this night 2022/01/13
> * nifi version 1.15.2
> * jdk-1.8.0_311
> And the limit is high
> {code:java}
> Last login: Fri Jan 14 09:57:06 CET 2022 on pts/2
> -bash-4.2@nifi$ ulimit -a
> core file size (blocks, -c) 0
> data seg size (kbytes, -d) unlimited
> scheduling priority (-e) 0
> file size (blocks, -f) rg
> pending signals (-i) 63278
> max locked memory (kbytes, -l) 64
> max memory size (kbytes, -m) unlimited
> open files (-n) 50000
> pipe size (512 bytes, -p) 8
> POSIX message queues (bytes, -q) 819200
> real-time priority (-r) 0
> stack size (kbytes, -s) 8192
> cpu time (seconds, -t) unlimited
> max user processes (-u) 10000
> virtual memory (kbytes, -v) unlimited
> file locks (-x) unlimited
> {code}
>
> We got a lot error about provenance_repository, it fill our filesystem logs ..
>
> {code:java}
> 2022-01-14 10:19:00,963 ERROR [Index Provenance Events-2]
> o.a.n.p.index.lucene.EventIndexTask Failed to index Provenance Events
> org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
> at
> org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:877)
> at
> org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:891)
> at
> org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1468)
> at
> org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1444)
> at
> org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.index(LuceneEventIndexWriter.java:70)
> at
> org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:202)
> at
> org.apache.nifi.provenance.index.lucene.EventIndexTask.run(EventIndexTask.java:113)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.nio.file.FileSystemException:
> /data/nifi/provenance_repository/lucene-8-index-1642145908399/_4_Lucene80_0.dvd:
> Too many open files
> {code}
>
>
> We expect upgrade all nifi instances to 1.15.2 to avoid log4j vulnerability.
> But it is impossible to do that if we got this error.
>
> Thanks for you help.
>
> Regards
>
>
>
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