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https://issues.apache.org/jira/browse/ZOOKEEPER-959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12977138#action_12977138
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dhruba borthakur commented on ZOOKEEPER-959:
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A ledger can at most be written to by one writer. So it makes sense to use the
client's time as the modification time of the ledger.
> Also, could the last modification time be a little lazy?
If the HDFS NameNode uses BK to store edits logs, then the lazy approach would
not work very well.
> Last modification time of a bookkeeper ledger
> ---------------------------------------------
>
> Key: ZOOKEEPER-959
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-959
> Project: ZooKeeper
> Issue Type: Improvement
> Components: contrib-bookkeeper
> Reporter: dhruba borthakur
> Fix For: 3.4.0
>
>
> I would like to discuss how hard or easy it will be to implement a bookkeeper
> api that returns the last modification time of a ledger. This is related to
> ZOOKEEPER-465.
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