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From "Maria Makedonskaya (Jira)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-14497) Move background task deletion at the end of next checkpoint
Date Wed, 07 Apr 2021 10:46:00 GMT
Maria Makedonskaya created IGNITE-14497:
-------------------------------------------

             Summary: Move background task deletion at the end of next checkpoint
                 Key: IGNITE-14497
                 URL: https://issues.apache.org/jira/browse/IGNITE-14497
             Project: Ignite
          Issue Type: Bug
            Reporter: Maria Makedonskaya
            Assignee: Maria Makedonskaya


In [1] has been described scenario of the race that makes possible a situation when information
from metastore has been deleted and part of the index is still present in the storage.

Actually, fix in [1] that has been done in slightly different way, however, it strongly decreases
possibility of the race. Removal of the background task has been moved to beginning of the
next checkpoint. It was done this way, because the problem was in case when node unexpectedly
failed in the middle of next checkpoint and after restart task failed on check of deleted
index metaPage. The check was done in [2].

In current issue, we only move background task deletion at the end of the next checkpoint.

[1]IGNITE-13382
[2]IGNITE-14447



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