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IC87376: SMI QUERY CRASHES INFORMIX INSTANCE.

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APAR status

  • Closed as program error.

Error description

  • Running the following SMI query crashes the instance.
    
    database sysmaster ;
    
    SELECT
    *,round((Space_free_MB/total_space_mb)*100,2)free_age,round
    (((total_space_mb-Space_free_MB)/total_space_mb)*100,2) used_age
    FROM
    (
      SELECT dbspace,
    round(((allocated_MB*decode(is_blobspace,1,2048,
      pagesize))/1024)/1024,2) total_space_mb,
      Space_free_MB
      from(
         select name[1,20] dbspace ,d.is_blobspace,d.pagesize,
             sum(chksize) allocated_MB
            ,round((sum(d.pagesize*nfree)/1024)/1024,2)
    Space_free_MB
         from sysdbspaces d, syschunks c
         where d.dbsnum = c.dbsnum
         group by 1,2,3)
     )where dbspace='rootdbs';
    
    
    Note:
    ------
    The instance does not crash if we remove the last WHERE clause,
    i.e. where dbspace='rootdbs';
    
    
    af stack:
    -----------
     gather_records
     rsread
     fmread
     readseq_single
     gettupl
     scan_next
     hjoin_open
     group_open
     prepselect
     open_cursor
     sql_open
     sq_open
     sqmain
     listen_verify
     spawn_thread
     startup
    
    Note:
    The problem does not reproduce with IDS 11.70.FC5
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users having queries with derived tables, view and using     *
    * subscript columns.                                           *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IDS-11.50.xC10                                     *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IDS-11.50.xC10
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC87376

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    B50

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2012-10-19

  • Closed date

    2017-06-15

  • Last modified date

    2017-06-15

  • 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

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B50","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
15 June 2017