Old unit of work found during restart

Problem

A unit of work with an origin RBA that predates the oldest active log has been detected during restart.

Symptoms

WebSphere MQ issues the following message:

CSQR020I +CSQ1 OLD UOW FOUND

System action

Information about the unit of work is displayed, and message CSQR021D is issued, requesting a response from the operator.

System programmer action

None.

Operator action

Decide whether to commit the unit of work or not. If you choose not to commit the unit of work, it is handled by normal restart recovery processing. Because the unit of work is old, this is likely to involve using the archive log, and so takes longer to complete.