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https://issues.apache.org/jira/browse/MESOS-993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13900702#comment-13900702
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Jie Yu commented on MESOS-993:
------------------------------
The stout/interval patch:
https://reviews.apache.org/r/18093/
> Performance issue during replicated log catch-up when the initial log
> position is large
> ---------------------------------------------------------------------------------------
>
> Key: MESOS-993
> URL: https://issues.apache.org/jira/browse/MESOS-993
> Project: Mesos
> Issue Type: Bug
> Affects Versions: 0.17.0
> Reporter: Jie Yu
> Assignee: Jie Yu
> Fix For: 0.18.0
>
>
> Inside Replica::persist(const Action& action), we update the in-memory
> 'holes' data structure
> // Update holes if we just wrote many positions past the last end.
> for (uint64_t position = end + 1; position < action.position(); position++)
> {
> holes.insert(position);
> }
> During catch-up (starts with an empty log), if the 'position' is very large,
> we may spend a lot of time in this loop. Also, the data structure 'holes'
> might become extremely large.
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