IC72792: SCHEDULER THREADS CANNOT START WITH START.SQL, EVEN IF STOP FILE IS REMOVED AFTER ENGINE COMES ONLINE

APAR status

• Closed as program error.

Error description

• If an instance is brought up with file
  $INFORMIXDIR/etc/sysadmin/stop in place so that scheduler
  threads do not start immediately you cannot start the threads
  later. It would seem that if the stop file is removed while the
  engine continues to be online, the removal of the stop file
  should permit the subequent starting of the scheduler threads.
  Running $INFORMIXDIR/etc/sysadmin/start.sql by way of dbaccess
  seems to cause the threads to start. However, it does not start
  threads. Once you exit dbaccess, the dbscheduler threads do not
  exist.
  
  Either the script should test to make sure the threads have
  started, or a message should indicate that the threads cannot be
  started.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users using a '$INFORMIXDIR/etc/sysadmin/stop' file to   *
  * avoid the scheduler threads from getting created.            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * If the engine is brought online with a                       *
  * '$INFORMIXDIR/etc/sysadmin/stop' file, the scheduler threads *
  * do not get created.  If the 'stop' file is removed, and      *
  * $INFORMIXDIR/etc/sysadmin/start.sql is run, the scheduler    *
  * threads still do not get recreated, until the engine is      *
  * restarted.                                                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to IDS 11.50.xC9.                                    *
  ****************************************************************
  

Problem conclusion

• Fixed in IDS 11.50.xC9.  If the engine is brought online with a
  '$INFORMIXDIR/etc/sysadmin/stop' file, the scheduler threads do
  not get created.  If the 'stop' file is removed, and
  $INFORMIXDIR/etc/sysadmin/start.sql is run, the scheduler
  threads will start immediately.
  

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

  IBM IDS ENTRP E

• Fixed component ID

  5724L2304

Applicable component levels

• RB15 PSN

     UP

• RB15 PSY

     UP