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https://issues.apache.org/jira/browse/ZOOKEEPER-1552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13471025#comment-13471025
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Flavio Junqueira commented on ZOOKEEPER-1552:
---------------------------------------------
One issue I have with this proposal is that the semantics of the transaction
log change form follower to observer. Followers log proposals they accepted but
that are not necessarily committed. With this patch, an observer logs committed
proposals coming in the form of inform messages.
Otherwise, I don't see any other problem with this patch.
> Enable sync request processor in Observer
> -----------------------------------------
>
> Key: ZOOKEEPER-1552
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1552
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.4.3
> Reporter: Thawan Kooburat
> Assignee: Thawan Kooburat
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1552.patch
>
>
> Observer doesn't forward its txns to SyncRequestProcessor. So it never
> persists the txns onto disk or periodically creates snapshots. This increases
> the start-up time since it will get the entire snapshot if the observer has
> be running for a long time.
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