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https://issues.apache.org/jira/browse/HDFS-12504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16203089#comment-16203089
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Weiwei Yang commented on HDFS-12504:
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bq. if we can have some simple benchmark results to see the performance
improvement,
Agree with this idea. Actually I suggest to add some log to record the time
consumed on critical paths, e.g insert a record to target DB, insert a batch of
records to a target DB. So that we can estimate the performance improvement
given by this patch. [~yuanbo], does that make sense to you?
> Ozone: Improve SQLCLI performance
> ---------------------------------
>
> Key: HDFS-12504
> URL: https://issues.apache.org/jira/browse/HDFS-12504
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Weiwei Yang
> Assignee: Yuanbo Liu
> Labels: performance
> Attachments: HDFS-12504-HDFS-7240.001.patch
>
>
> In my test, my {{ksm.db}} has *3017660* entries with total size of *128mb*,
> SQLCLI tool runs over *2 hours* but still not finish exporting the DB. This
> is because it iterates each entry and inserts that to another sqllite DB
> file, which is not efficient. We need to improve this to be running more
> efficiently on large DB files.
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