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https://issues.apache.org/jira/browse/HIVE-13249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15194349#comment-15194349
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Wei Zheng commented on HIVE-13249:
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Thanks [~alangates] for review. I had discussion with [~ekoifman] last week and
thought it would be better to have a separate threadpool for that. We can
revisit this and see if AcidHouseKeeperService is a good reuse.
For the open transactions limit, we just want to fail the incoming open
transaction requests if the number from background counter is above threshold.
So even if e.g. we let it in when under 90%, it will still lurch in and out
around that 90% line.
> Hard upper bound on number of open transactions
> -----------------------------------------------
>
> Key: HIVE-13249
> URL: https://issues.apache.org/jira/browse/HIVE-13249
> Project: Hive
> Issue Type: Improvement
> Components: Transactions
> Affects Versions: 2.0.0
> Reporter: Wei Zheng
> Assignee: Wei Zheng
> Attachments: HIVE-13249.1.patch
>
>
> We need to have a safeguard by adding an upper bound for open transactions to
> avoid huge number of open-transaction requests, usually due to improper
> configuration of clients such as Storm.
> Once that limit is reached, clients will start failing.
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