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https://issues.apache.org/jira/browse/KUDU-767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17121133#comment-17121133
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Grant Henke commented on KUDU-767:
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Ah, I see. Thanks for the correction.
> Un-cached reads should not bump blocks to front of LRU list
> -----------------------------------------------------------
>
> Key: KUDU-767
> URL: https://issues.apache.org/jira/browse/KUDU-767
> Project: Kudu
> Issue Type: Improvement
> Components: cfile, perf
> Affects Versions: Private Beta
> Reporter: Todd Lipcon
> Priority: Major
> Fix For: NA
>
>
> When we're doing an un-cached read like an MR job or compaction, we should
> probably not be moving the blocks being accessed to the front of the LRU
> list. Because we do, this can cause hotter blocks to get pushed down to be
> towards the end of the LRU after the big scan.
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