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https://issues.apache.org/jira/browse/BOOKKEEPER-137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201223#comment-13201223
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Ivan Kelly commented on BOOKKEEPER-137:
---------------------------------------
Ah yes, you're right, it calls it through #checkOpen. This should be simple to
resolve.
> Do not create Ledger index files until absolutely necessary.
> ------------------------------------------------------------
>
> Key: BOOKKEEPER-137
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-137
> Project: Bookkeeper
> Issue Type: Bug
> Reporter: Ivan Kelly
> Assignee: Ivan Kelly
> Fix For: 4.1.0
>
> Attachments: BOOKKEEPER-137.diff, BOOKKEEPER-137.diff,
> BOOKKEEPER-137.diff
>
>
> This is an optimization to speed up the case where we have many ledgers and
> are writing to them at random (a benchmark case we currently have).
> Currently, we create the ledger index file and write the first 1k of it to
> disk immediately. With a lot of ledgers being randomly written to, this means
> a lot of random writes on the ledger disk. This fix postpones the creation of
> the index file and writing of the first 1k until the first flush of the
> ledger.
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