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https://issues.apache.org/jira/browse/ZOOKEEPER-2662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987277#comment-15987277
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ASF GitHub Bot commented on ZOOKEEPER-2662:
-------------------------------------------
Github user hanm commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/241#discussion_r113776089
--- Diff:
src/java/main/org/apache/zookeeper/server/ZooKeeperServerBean.java ---
@@ -162,4 +162,12 @@ public String getSecureClientAddress() {
}
return "";
}
+
+ /**
+ * Returns the elapsed sync of time of transaction log in milliseconds.
+ */
--- End diff --
This comment can be moved to interface.
> Export a metric for txn log sync times
> --------------------------------------
>
> Key: ZOOKEEPER-2662
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2662
> Project: ZooKeeper
> Issue Type: Improvement
> Reporter: Andrew Purtell
> Assignee: Edward Ribeiro
> Fix For: 3.6.0
>
> Attachments: ZOOKEEPER-2662.diff
>
>
> In FileTxnLog there is code that records the amount of time required to fsync
> the txn log in order to warn if that time exceeds a configurable threshold.
> This information should also be exported as a metric available by JMX so an
> important aspect of quorum performance can be monitored.
> ZooKeeperServerMXBean carries some global latency information for the server
> process already, seems like a good place to put it if not an entirely new
> bean for the TxnLog. After ZOOKEEPER-2310 might want to collect the same
> information for snapshots.
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