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https://issues.apache.org/jira/browse/IMPALA-6793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tianyi Wang resolved IMPALA-6793.
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Resolution: Fixed
Fix Version/s: Impala 2.12.0
Impala 3.0
IMPALA-6793: Fix empty metadata after statestore restarts
IMPALA-5990 introduced a bug where restarting the statestore
deterministically clears the metadata without ever coming back. The
cause of the bug is a wrong condition used by catalog to detect the
restart of statestore.
A custom cluster regression test is added. The process restarting
utility function in the custom cluster test is changed into using
shell=True in popen.
Change-Id: I332a60e172af84b93b3544373fe363cdced5e8d0
Reviewed-on: http://gerrit.cloudera.org:8080/9921
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Tianyi Wang <[email protected]>
> Metadata doesn't recover after restarting statestore
> ----------------------------------------------------
>
> Key: IMPALA-6793
> URL: https://issues.apache.org/jira/browse/IMPALA-6793
> Project: IMPALA
> Issue Type: Bug
> Components: Catalog
> Affects Versions: Impala 3.0, Impala 2.12.0
> Reporter: Tianyi Wang
> Assignee: Tianyi Wang
> Priority: Blocker
> Fix For: Impala 3.0, Impala 2.12.0
>
>
> Currently when the statestore is restarted, impalad would clear its metadata
> and never recovers . After some investigation, the case is that catalogd
> doesn't send any metadata to the restarted statestore. This bug is introduced
> by IMPALA-5990.
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