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PI08508: DB2 CONN BLOCKS ARE CORRUPT AND CAN NOT BE REUSED. THIS CAUSED AN ECSA STORAGE SHORTAGE.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The customer noticed an ECSA storage usage increase. Dump shows
    ECSA storage allocated for pool "CONN,AGNT,FVL+OTHERS" for CONN
    structure.  CONN blocks are corrupt and can not be reused --
    CONN blocks containing 'FFFF' instead of an MVS SSI function
    code.  This might caused by some DDF failures result in calling
    DSN3SSCN with an invalid plist.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of DB2 10 and 11 for z/OS.         *
    ****************************************************************
    * PROBLEM DESCRIPTION: Repeated START/STOP of DDF causes a     *
    *                      slow storage leak and may cause an      *
    *                      ECSA storage shortage.                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Starting and stopping DDF causes a slow leak of DB2 control
    blocks and can eventually lead to an ECSA storage shortage.
    

Problem conclusion

  • DB2 has been modified to reuse the control blocks used during
    DDF startup and shutdown.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI08508

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-12-23

  • Closed date

    2014-04-02

  • Last modified date

    2014-05-02

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

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

    UI16670 UI16671

Modules/Macros

  • DSN3SSCN DSN3SSES DSN3SSI1 DSN3SSRQ
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UI16670

       UP14/04/18 P F404

  • RB10 PSY UI16671

       UP14/04/18 P F404

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Document Information

Modified date:
02 May 2014