We had this same condition at a client. We caught the exception and parsed the exception for certain database errors. What you have to watch out for is when the DB comes back online. The first message gets a different error that still implies the DB is unavailable. (WIERD) But WMQI throws an error. So you have messages of type:
1 - Database unavailable 2 - Connection unavailable 3 - All other Database errors
When we got 1 & 2 we wrote a message to a queue that triggered a script to GET DISABLE the queue. (Here I'm a little fuzzy). We had another script which reset the GET to EABLE. THis can be started by the Database Backup process.
bobbee
From: Jas Singh <[EMAIL PROTECTED]> Reply-To: MQSeries List <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Handling Database down period in WMQI Date: Fri, 10 Oct 2003 11:58:04 -0500
We are developing message flows in IBM Websphere MQ Integrator (WMQI), Message flows are using Databases for Lookup and Write operations extensively . The database is shutdown for backup every night for 2 hrs and we need to build a functionality that the messages remain in the INPUT queue until the database is up and running .
Option such as backout count or try catch do not suite our purpose as this a normal process we do not want to treat this as an error .
Is there any good way of achieving this in Message flow
Thanks -Jas
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