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ASF GitHub Bot commented on IGNITE-5938: ---------------------------------------- GitHub user glukos opened a pull request: https://github.com/apache/ignite/pull/3066 IGNITE-5938 Try to enable v2 serializer You can merge this pull request into a Git repository by running: $ git pull https://github.com/gridgain/apache-ignite master-v2ser Alternatively you can review and apply these changes as the patch at: https://github.com/apache/ignite/pull/3066.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #3066 ---- commit 6e3f4043c6ab58f6ad5109bbdaf4832685bc7df8 Author: Ivan Rakov <ivan.glu...@gmail.com> Date: 2017-11-17T18:34:54Z IGNITE-5938 Try to enable v2 serializer ---- > Implement WAL logs compaction and compression after checkpoint > -------------------------------------------------------------- > > Key: IGNITE-5938 > URL: https://issues.apache.org/jira/browse/IGNITE-5938 > Project: Ignite > Issue Type: Improvement > Components: persistence > Affects Versions: 2.1 > Reporter: Alexey Goncharuk > Assignee: Ivan Rakov > Fix For: 2.4 > > > Currently, we simply move WAL segments to archive when WAL segment is written > and delete when checkpoint history becomes too old. > Archived WAL segment contains physical delta records that are no longer > needed for rebalancing, so these records may be thrown away. In order to > optimize disk space and delta WAL rebalancing, we can do the following: > 1) Clean the WAL segments from the physical records > 2) Compress the cleaned segments (I expect this to be very effective since we > write full objects) -- This message was sent by Atlassian JIRA (v6.4.14#64029)