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From "Edward Ribeiro (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ZOOKEEPER-2662) Export a metric for txn log sync times
Date Thu, 27 Apr 2017 00:35:04 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-2662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Edward Ribeiro updated ZOOKEEPER-2662:
--------------------------------------
    Fix Version/s: 3.6.0

> 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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