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Is it normal for the lsof output to show many files held open by mysql and java processes with (deleted) indicator in the output?

  1. Last updated
    May 27, 2025
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active-iq-unified-manager
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Last Updated:
5/27/2025, 8:39:28 PM

Applies to

  • Active IQ Unified Manager (AIQUM) 9.x (RHEL/CentOS)
  • Active IQ Unified Manager (AIQUM) 9.x (OVA/vApp)

Answer

Yes, it is typical to see a large list of transient/temporary files in the lsof output.

  • The (deleted) indicator means it has been deleted from the filesystem but the space has not been reclaimed due to the processes not having released the file handles.
  • These handles will eventually be released, but they will be replaced by new ones. Thus, there will always be (deleted) entries present in the lsof output.

Examples:
java       7654 15076 async-per            jboss  181r      REG              254,0    596322     131076 /data/tmp/jar_cache17945771367604846061.tmp (deleted)

java       7654 15136 Keep-Aliv            jboss  588r      REG                8,1       647    3415643 /var/log/ocie/recording/cloudagent/foundation/cluster1.mydomain.com/2025-05-27T151800-0500/api_cluster_metrocluster_interconnects.json (deleted)

Additional Information

N/A

 

 

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