example recovery scenarios, delays in off-loading, problem, active log, out of space on active log, CSQJ111A message, adding new active log, change log inventory utility (CSQJU003), CSQJU003 (change log inventory utility), adding" /> Active log is full

 

Active log is full

Symptoms

When the active log becomes full, the queue manager halts processing until an off-load has been completed. If the off-load processing stops when the active log is full, the queue manager can end abnormally. Corrective action is required before the queue manager can be restarted.

WebSphere MQ issues the following message: 

CSQJ111A +CSQ1 OUT OF SPACE IN ACTIVE LOG DATA SETS

and an off-load is started. The queue manager then halts processing until the off-load has been completed.

System action

WebSphere MQ waits for an available active log data set before resuming normal WebSphere MQ processing. Normal shutdown, with either QUIESCE or FORCE, is not possible because the shutdown sequence requires log space to record system events related to shutdown (for example, checkpoint records). If the off-load processing stops when the active log is full, the queue manager stops with an X'6C6' abend; restart in this case requires special attention. For more details, see the WebSphere MQ for z/OS Problem Determination Guide.

System programmer action

We can provide additional active log data sets before restarting the queue manager. This permits WebSphere MQ to continue its normal operation while the error causing the off-load problems is corrected. To add new active log data sets, use the change log inventory utility (CSQJU003) when the queue manager is not active. For more details about adding new active log data sets, see Changing the BSDS.

Consider increasing the number of logs by:

  1. Making sure the queue manager is stopped, then using the Access Method Services DEFINE command to define a new active log data set.

  2. Defining the new active log data set in the BSDS using the change log inventory utility (CSQJU003).

When you restart the queue manager, off-load starts automatically during startup, and any work that was in progress when WebSphere MQ was forced to stop is recovered.

Operator action

Check whether the off-load process is waiting for a tape drive. If it is, mount the tape. If we cannot mount the tape, force WebSphere MQ to stop by using the z/OS CANCEL command.