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https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jimmy Xiang updated HBASE-8420:
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Status: Open (was: Patch Available)
I will make a little change so that we don't leak the cached result size
counter if the prefetcher is cancelled at a wrong time.
As to caching in multiple HDFS block size, it will cache things more and
longer. It will be very helpful if there are not many scanners, probably not
good as a general solution.
> Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
> -----------------------------------------------------------------
>
> Key: HBASE-8420
> URL: https://issues.apache.org/jira/browse/HBASE-8420
> Project: HBase
> Issue Type: Improvement
> Reporter: Jimmy Xiang
> Assignee: Jimmy Xiang
> Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch,
> trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch,
> trunk-8420_v4.patch
>
>
> This should help scanner performance. We should have it in trunk.
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