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https://issues.apache.org/jira/browse/HDFS-3950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13458958#comment-13458958
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Todd Lipcon commented on HDFS-3950:
-----------------------------------
bq. Worth making the output buffer size configurable vs hard-coding to 512k
while you're at it?
With this patch, it respects whatever is passed in from FSEditLog. Currently
that's hard-coded from there. If we want to change it to be configurable, it
should be a system-wide change, rather than QJM-specific, so I'd rather not do
it in this patch. 512kb per output stream still seems reasonable, given even a
highly redundant NN setup would only have 5 or 7.
> QJM: misc TODO cleanup, improved log messages, etc
> --------------------------------------------------
>
> Key: HDFS-3950
> URL: https://issues.apache.org/jira/browse/HDFS-3950
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha
> Affects Versions: QuorumJournalManager (HDFS-3077)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Attachments: hdfs-3950.txt, hdfs-3950.txt
>
>
> General JIRA for a bunch of miscellaneous clean-up in the QJM branch:
> - fix most remaining TODOs
> - improve some log/error messages
> - add some more sanity checks where appropriate
> - address any findbugs that might have crept into branch
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