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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2016/01/15 01:31:39 UTC

[jira] [Commented] (HIVE-10632) Make sure TXN_COMPONENTS gets cleaned up if table is dropped before compaction.

    [ https://issues.apache.org/jira/browse/HIVE-10632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15099194#comment-15099194 ] 

Eugene Koifman commented on HIVE-10632:
---------------------------------------

Also, note that insert into T values(...) generates an auxiliary values_tmp_table_N which ends up in ACID metastore tables.  This is a temp table so it gets cleaned up but it still causes "noise" in ACID subsystem.

> Make sure TXN_COMPONENTS gets cleaned up if table is dropped before compaction.
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-10632
>                 URL: https://issues.apache.org/jira/browse/HIVE-10632
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore, Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Critical
>
> The compaction process will clean up entries in  TXNS, COMPLETED_TXN_COMPONENTS, TXN_COMPONENTS.  If the table/partition is dropped before compaction is complete there will be data left in these tables.  Need to investigate if there are other situations where this may happen and address it.
> see HIVE-10595 for additional info



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