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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ZOOKEEPER-3116) Make the DataTree.approximateDataSize more efficient
Date Thu, 09 Aug 2018 04:55:00 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-3116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ASF GitHub Bot updated ZOOKEEPER-3116:
--------------------------------------
    Labels: pull-request-available  (was: )

> Make the DataTree.approximateDataSize more efficient
> ----------------------------------------------------
>
>                 Key: ZOOKEEPER-3116
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3116
>             Project: ZooKeeper
>          Issue Type: Improvement
>          Components: server
>            Reporter: Fangmin Lv
>            Assignee: Fangmin Lv
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.6.0
>
>
> The approximateDataSize is a nice metric to show what's the total size stored in ZooKeeper
ensemble over time, but it's expensive to query too often, since each query will go through
all the nodes to calculate the total size.
> It's better to use a counter to record the total data size when txns applied to the
DataTree, which is cheaper.



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