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IV52780: INODE LOCK CONTENTION ON /UNIX APPLIES TO AIX 7100-03

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Starting a large number of programs that have been
    linked against the pthread library concurrently can
    lead to inode lock contention on the /unix file.
    
    The inode lock contention on the /unix file has been
    seen in a large database environment where a high
    demand of new database connection requests resulted
    in starting a large number of new database processes
    concurrently.
    

Local fix

Problem summary

  • When a large number of threaded applications all exec at the
    same time,Customer may experience performance hit due to Inode
    lock contention on /unix.
    

Problem conclusion

  • Pthread library has been modified accordingly to avoid Inode
    lock contention on /unix.
    

Temporary fix

Comments

  • 6100-07 - use AIX APAR IV50403
    6100-08 - use AIX APAR IV50402
    6100-09 - use AIX APAR IV52691
    6100-09 - use AIX APAR IV52691
    6100-09 - use AIX APAR IV52691
    7100-01 - use AIX APAR IV57613
    7100-02 - use AIX APAR IV57073
    7100-03 - use AIX APAR IV52780
    

APAR Information

  • APAR number

    IV52780

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2013-12-02

  • Closed date

    2013-12-02

  • Last modified date

    2014-08-14

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

    IV50401

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

    U866403

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U866403

       UP14/05/22 I 1000



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV52780

Modified date: 14 August 2014