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Active IQ Unified Manager web interface goes unresponsive due to 'Too many open files' error caused by file descriptor leak

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Applies to

Active IQ Unified Manager (AIQUM) 9.9 or earlier

Issue

  • AIQUM WebUI is unresponsive
  • API calls triggered fail with Error 500 - Internal Server Error
  • Grafana fails to create report of AIQUM
  • server.log shows Too many open files error:

ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) WFLYDS0012: Scan of /opt/netapp/essentials/jboss/standalone/deployments threw Exception: java.lang.RuntimeException: WFLYDS0032: Failed to list files in directory /opt/netapp/essentials/jboss/standalone/deployments. Check that the contents of the directory are readable.
...

Caused by: java.nio.file.FileSystemException: /opt/netapp/essentials/jboss/standalone/deployments: Too many open files

Exception handling request to /apis/XMLrequest: java.lang.RuntimeException: java.io.IOException: Cannot run program "/opt/netapp/essentials/jboss/bin/native/lib64/authenticate": error=24, Too many open files

  • ocumserver.log indicates Got IO exception while processing access_log with Too many open files during Access Log Task

INFO  [oncommand] [Access Log Task] [com.netapp.ipc.util.AccessLogTask] <YEAR>-<MONTH>-<DATE> is older than 30 days
ERROR [oncommand] [Access Log Task] [com.netapp.ipc.util.AccessLogTask] Got IO exception while processing access_log
java.nio.file.FileSystemException: /var/log/ocie/<YEAR>-<MONTH>-<DATE>: Too many open files

  • Command lsof -p `cat /var/run/ocie.pid` | awk '{print $9}' | sort | grep "/var/log/ocie/20" | uniq -c shows large numbers of file descriptors for /var/log/ocie/<YEAR>-<MONTH>-<DATE> directories that are older than 30 days

174 /var/log/ocie/2019-08-26
172 /var/log/ocie/2019-08-27
 :
 34 /var/log/ocie/2021-07-13
 98 /var/log/ocie/2021-07-14
 98 /var/log/ocie/2021-07-15
 40 /var/log/ocie/2021-07-16

 

 

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