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Status Planned for future release
Created by Guest
Created on Mar 28, 2017

The Last update time of map entries used by evictors is lost in a shard replication

The following details have been provided in 08953,442,000 and we have been told to raise a RFE to get the issue fixed. This is a HIGH priority issue to ODM, because it implies a bug in the ODM DSI product and a customer has already fall into it few times.

For a map with a ttlEvictorType of type LAST_UPDATE_TIME, the last update time of map entries is reset when a map is replicated to another server that has just been started. As a result, if the map in the new server becomes primary, the evictor acts as if the LAST_UPDATE_TIME was the data at which the server started. This is highly visible in ripple start scenarios (when you need to stop and restrart servers one by one for maintainance , for example server update for security fixes and reboot). In that case the LAST_UPDATE_TIME for all the grid entries is lost.

This is seen with Xtreme Scale (+ latest IFIX) - but alo with previous releases.

Idea priority Urgent
RFE ID 102957
RFE Product WebSphere eXtreme Scale