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Status Not under consideration
Workspace Informix
Components Informix Server
Created by Guest
Created on Mar 2, 2020

RELATED IDEAS

Permit blocking checkpoints on secondary nodes when raw tables exist on the primary node.

Currently we cannot issue a blocked checkpoint on a secondary (RSS in our case) when there exists raw tables on the primary node.

We use raw tables heavily for admin jobs (mostly for the selection processing of archiving/purging jobs) to avoid swamping the entire cluster with semi-temporary replication data that will only be processed from the primary node from various sessions (hence why a normal temp table cannot be used).

This limitation is affecting our ability to block the disk I/O for when creating consistent storage snapshots on a secondary node.

The limitation is apparently a safety catch for when DBAs otherwise might expect that a raw table would be included in an external backup taken on a secondary node (which uses the blocked checkpoint), so it won't allow a secondary node to be blocked.

We would like a configurable parameter to allow the blocking checkpoint to happen. Ideally it should be able to be set dynamically as well.

Needed by Date Mar 6, 2020

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