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https://issues.apache.org/jira/browse/HIVE-23067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marton Bod updated HIVE-23067:
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Attachment: HIVE-23067.5.patch
> Use batch DB calls in TxnHandler for commitTxn and abortTxns
> ------------------------------------------------------------
>
> Key: HIVE-23067
> URL: https://issues.apache.org/jira/browse/HIVE-23067
> Project: Hive
> Issue Type: Improvement
> Reporter: Marton Bod
> Assignee: Marton Bod
> Priority: Major
> Attachments: HIVE-23067.1.patch, HIVE-23067.1.patch,
> HIVE-23067.1.patch, HIVE-23067.1.patch, HIVE-23067.2.patch,
> HIVE-23067.2.patch, HIVE-23067.4.patch, HIVE-23067.5.patch,
> HIVE-23067.5.patch, HIVE-23067.5.patch
>
>
> To reduce the number of database calls and network roundtrips, we could use
> more batching in TxnHandler, where currently in many places we call insert
> commands in loops sequentially.
> Some examples:
> * openTxns (TXNS, REPL_TXN_MAP)
> * commitTxn (COMPLETED_TXN_COMPONENTS)
> * replTableWriteIdState (TXN_TO_WRITE_ID)
> * allocateTableWriteIds (TXN_TO_WRITE_ID)
> * ....
>
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