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https://issues.apache.org/jira/browse/MINIFI-498?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aldrin Piri reassigned MINIFI-498:
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Assignee: Aldrin Piri
> C2 Server Error - Too Many Open Files
> -------------------------------------
>
> Key: MINIFI-498
> URL: https://issues.apache.org/jira/browse/MINIFI-498
> Project: Apache NiFi MiNiFi
> Issue Type: Bug
> Components: Command and Control
> Affects Versions: 0.5.0
> Environment: OS: Amazon Linux 2 (4.14.77-86.82.amzn2.x86_64)
> Java: 1.8.0_191-b12
> ulimits:
> core file size (blocks, -c) 0
> data seg size (kbytes, -d) unlimited
> scheduling priority (-e) 0
> file size (blocks, -f) unlimited
> pending signals (-i) 31769
> 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
> Reporter: Michael
> Assignee: Aldrin Piri
> Priority: Blocker
> Fix For: 0.6.0
>
>
> After several days of running C2 the errors are being logged about having
> "Too Many Open Files". At this point, C2 is not responsive to clients trying
> to check for new configurations.
> _33e79e: Too many open files_
> _Apr 29 14:33:22 ********ec2.internal c2.sh[20851]: Caused by:
> java.nio.file.FileSystemException:
> /opt/minifi-c2/./files/5233730D-AC58-4853-9C0E-273D0E_
>
> Running _lsof_ shows an increasingly larger number of open files. Our MiNiFi
> instances are checking for new files every few seconds (probably too short),
> but it seems like maybe some file handles are not being cleaned up.
> Restarting C2 clears up this condition and C2 becomes responsive again.
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