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Posted to issues@ignite.apache.org by "Kirill Tkalenko (Jira)" <ji...@apache.org> on 2022/08/10 13:50:00 UTC
[jira] (IGNITE-17228) Get rid of the checkpoint markers
[ https://issues.apache.org/jira/browse/IGNITE-17228 ]
Kirill Tkalenko deleted comment on IGNITE-17228:
------------------------------------------
was (Author: ktkalenko@gridgain.com):
[~rpuch] Please make code review.
> Get rid of the checkpoint markers
> ---------------------------------
>
> Key: IGNITE-17228
> URL: https://issues.apache.org/jira/browse/IGNITE-17228
> Project: Ignite
> Issue Type: Improvement
> Reporter: Kirill Tkalenko
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-alpha6
>
>
> In 2.0, each checkpoint creates *start* and *end* markers on disk to perform a binary recovery if the node crashed in the middle of the checkpoint (there is no *end* market) which allows us to save the consistency of *index.bin* files (a special group cache file that stores all the indexes of this group).
> Since there is no WAL in 3.0 and indexes will be in each partition file, there is no need for checkpoint markers.
>
> What should be done:
> * Get rid of *org.apache.ignite.internal.pagememory.persistence.checkpoint.CheckpointMarkersStorage*;
> * Remove related tests;
> * If logical recovery is not yet supported, then we need to drop the node (throw exceptions at the start of the node) if we crashed in the middle of the checkpoint.
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