IT18155: "PTHDRPAGE:PTALLOC:BAD PARTN PAGE" ASSERTIONS POSSIBLE RUNNING PURGE_DICTIONARY TASK

APAR status

• Closed as program error.

Error description

• Should compression dictionary partitions contain old
  dictionaries for partnums whose partition header pages now serve
  as secondary partition header pages (describing in-place
  alters), purging such dictionaries using
  sysadmin:task("compression purge_dictionary") would throw an
  assertion like the following for every such dict_partnum in
  sysmaster:syscompdicts:
  
    Assert Warning: pthdrpage:ptalloc:bad partn page
    IBM Informix Dynamic Server Version 12.10.FC7
     Who: Session(1186, user@host, 12519, 0x44909858)
          Thread(1325, sqlexec, 448d2dd8, 1)
          File: rspartn.c Line: 8576
     Results: Cannot use TBLSpace page for TBLSpace 1049198
     Action: Run 'oncheck -pt 1049198'
    stack trace for pid 31122 written to
  /informix/dump/dir/af.9159ef9
  
  These really are warnings only and would neither pose nor create
  any problem.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Using compression and purging compression dictionary after   *
  * some tables were dropped and others were altered.            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Unnecessary assertion failure warning messages in the        *
  * message log file. Also see the Error Description.            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to IBM Informix Server 12.10.xC9 or newer.            *
  ****************************************************************
  

Problem conclusion

• Problem Fixed In IBM Informix Server 12.10.xC9.
  

Temporary fix

Comments

APAR Information

• 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

• RC10 PSY

     UP