Troubleshooting MQIS Purge Problems

The MQIS database maintains some information about deleted objects. To avoid wasting MQIS database space, an MQIS purge algorithm periodically deletes this information when it is no longer needed. Information about deleted objects is deleted when the information has been replicated to the PEC and all PSCs and it is more than one week old.

If problems occur during the purge of the MQIS database, one of the following error messages is written to the Windows NT application log:

• Cannot perform purge up to sequence number x because PSC y did not ACK. Check for connectivity with the PSC. Last ACK was at sequence number z.
This error indicates that the MQIS controller could not purge the database because a PSC named y did not acknowledge. Make sure the server has connectivity with the PSC. If a PSC is not connected, the purge algorithm cannot complete.
• Did not receive an ACK from BSC x for a few days. Make sure to reconnect the BSC, or uninstall it if it is obsolete.
This error indicates that a PSC did not get an acknowledgement from its BSC within four days.
• MQIS database reached x percent of its capacity. Consider expanding it.
This error appears when the MQIS database usage reaches 70% of capacity. If you are using the full retail version of SQL Server 6.5, you can increase the size of your MQIS database. If you are using the limited version of SQL Server 6.5 included with MSMQ, you must upgrade to the full release version of SQL Server version 6.5 to increase your database size. For more information increasing the size of the MQIS database, see "Increasing the Size of the MQIS" in Chapter 3, "Managing Your MSMQ Enterprise."

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