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IJ23387: AQL QUERIES WITH SUBQUERIES CAN CAUSE A FILE HANDLE LEAK THAT LEADS TO ARIEL SERVICE OUTAGES

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APAR status

  • Closed as program error.

Error description

  • AQL Queries with subqueries can result in a file handle leak
    which can cause ariel process to run out of file handles over
    time.
    When there are no more available file handles, ariel outages
    can occur over a period of time when the handles exceed the
    maximum for that process until the process is restarted.
    Example of an AQL search that can cause the behavior:
    select qid from events where username in (select username from
    events limit 3) limit 3
    

Local fix

  • A restart of the ariel_proxy_server on the QRadar console can
    temporarily alleviate this issue, but the issue can re-occur.
    # systemctl restart ariel_proxy_server
    

Problem summary

  • This issue was fixed in QRadar QRM QVM release of 7.4.0 Fix Pack
    3 and 7.3.3 FixPack 4.
    

Problem conclusion

  • This issue was fixed in QRadar QRM QVM release of 7.4.0 Fix Pack
    3 and 7.3.3 FixPack 4.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ23387

  • Reported component name

    QRADAR SOFTWARE

  • Reported component ID

    5725QRDSW

  • Reported release

    731

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-03-09

  • Closed date

    2020-06-16

  • Last modified date

    2020-07-14

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    QRADAR SOFTWARE

  • Fixed component ID

    5725QRDSW

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSBQAC","label":"IBM QRadar SIEM"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"731"}]

Document Information

Modified date:
15 July 2020