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https://issues.apache.org/jira/browse/ZOOKEEPER-465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12973802#action_12973802
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dhruba borthakur commented on ZOOKEEPER-465:
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Maybe a brain-dead idea: but can we write the current size of the ledger along
with each entry in the ledger? So, if an application wants to find the size of
a ledger, the system can internally read the last entry in the ledger and
extract the length of the ledger from it.
> 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
>
> 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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