IBM Support

IC92213: VALUES IN THE SYSMASTER:SYSRSTCB.IOWAITTIME COLUMN CAN BE INCORRECT

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APAR status

  • Closed as program error.

Error description

  • When you run a query against the sysmaster:sysrstcb table to
    analyze the wait statistics of a particular thread, you can see
    the values in the iowaittime are not correct, for example for a
    session which lasts less then a second a much higher time is
    reported in iowaittime:
    
    An example of such a query:
    
    select --+ORDERED
    sc.sid,
    rs.iowaittime,
    tc.cpu_time
    from
    sysmaster:sysscblst sc,
    sysmaster:sysrstcb rs,
    sysmaster:systcblst tc
    where
    sc.sid    = DBINFO('sessionid')
    and sc.address = rs.scb
    and rs.tid = tc.tid;
    
    $ time dbaccess sysmaster query.sql
    
    Database selected.
            sid     iowaittime       cpu_time
             35     11.96113511364   0.005598801548
    
    1 row(s) retrieved.
    Database closed.
    
    real    0m0.115s
    user    0m0.020s
    sys     0m0.028s
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Users                                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IDS-11.70.xC8                                      *
    *                                                              *
    * Upgrade to IDS 11.70.*C8 when available                      *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IDS-11.70.xC8
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC92213

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    B70

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-05-09

  • Closed date

    2014-02-26

  • Last modified date

    2014-02-26

  • 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

    INFORMIX SERVER

  • Fixed component ID

    5725A3900

Applicable component levels

  • RA10 PSN

       UP

  • RA10 PSY

       UP

  • RB10 PSN

       UP

  • RB10 PSY

       UP

  • RB50 PSN

       UP

  • RB50 PSY

       UP

  • RB70 PSN

       UP

  • RB70 PSY

       UP

  • RC10 PSN

       UP

  • RC10 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B70","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
26 February 2014