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https://issues.apache.org/jira/browse/KUDU-503?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Percy updated KUDU-503:
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Parent: KUDU-410
> Regression: always sync-on-close for data blocks makes tablet creation too
> slow
> -------------------------------------------------------------------------------
>
> Key: KUDU-503
> URL: https://issues.apache.org/jira/browse/KUDU-503
> Project: Kudu
> Issue Type: Sub-task
> Components: fs
> Affects Versions: M4.5
> Reporter: Jean-Daniel Cryans
>
> When this change (http://gerrit.sjc.cloudera.com:8080/#/c/4231/) was pushed a
> bunch of stuff got slower, for example:
> http://gerrit.sjc.cloudera.com:8080/#/c/4253/.
> Tablet creation also got a lot slower, we used to be able to create 700
> tablets with num_replicas=3 but now we're always missing ~50 (because the
> master drops the calls on the floor, different issue).
> enable_data_block_fsync can be disabled to get the performance back.
> On a single node, tablet creation with the flag turned off takes ~100ms
> whereas with the default value it takes at least 700ms (saw it taking
> seconds).
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