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https://issues.apache.org/jira/browse/ZOOKEEPER-465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12975619#action_12975619
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dhruba borthakur commented on ZOOKEEPER-465:
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In my case, a ledger will have only one writer. Then we are still good with the
approach where the client can maintain the current ledger size?
Just a hypothetical question: does Bookkeeper make any assumptions that there
is only one writer to a ledger? if so, then what happens if a second client
starts writing to the same ledger, will it get an error?
> Ledger size in bytes
> --------------------
>
> Key: ZOOKEEPER-465
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-465
> Project: ZooKeeper
> Issue Type: New Feature
> Components: contrib-bookkeeper
> Reporter: Flavio Junqueira
> Fix For: 3.3.3, 3.4.0
>
>
> It is currently easy to know how many entries a ledger has, but there is no
> easy way to know the total number of bytes in a ledger. The idea of this jira
> is to add a method that gives the number of bytes in a closed ledger. My
> current idea is to simply have the writer counting the number of bytes
> written and store it to ZooKeeper.
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