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https://issues.apache.org/jira/browse/ZOOKEEPER-1383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13560165#comment-13560165
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Thawan Kooburat commented on ZOOKEEPER-1383:
--------------------------------------------
Thanks for your interest in this patch. We recently found some issues with the
current design and need some rework which probably miss 3.5 release.
The current implementation added a logic in DataTree to decide when to reject a
given request when quota is exceeded. This have some flaws, so we will have to
change it so that Leader's PrepRequestProcessor makes this decision instead.
> Create update throughput quotas and add hard quota limits
> ---------------------------------------------------------
>
> Key: ZOOKEEPER-1383
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1383
> Project: ZooKeeper
> Issue Type: New Feature
> Components: server
> Reporter: Jay Shrauner
> Assignee: Thawan Kooburat
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1383.patch, ZOOKEEPER-1383.patch,
> ZOOKEEPER-1383.patch, ZOOKEEPER-1383.patch
>
>
> Quotas exist for size (node count and size in bytes); it would be useful to
> track and support quotas on update throughput (bytes per second) as well.
> This can be tracked on both a node/subtree level for quota support as well as
> on the server level for monitoring.
> In addition, the existing quotas log a warning when they are exceeded but
> allow the transaction to proceed (soft quotas). It would also be useful to
> support a corresponding set of hard quota limits that fail the transaction.
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