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https://issues.apache.org/jira/browse/HIVE-12172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15058723#comment-15058723
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Siddharth Seth commented on HIVE-12172:
---------------------------------------
[~prasanth_j] - is this fixed now via a different jira ? Vaguely remember a
similar jira being closed recently.
> LLAP: Cache metrics are incorrect
> ---------------------------------
>
> Key: HIVE-12172
> URL: https://issues.apache.org/jira/browse/HIVE-12172
> Project: Hive
> Issue Type: Bug
> Reporter: Siddharth Seth
> Assignee: Prasanth Jayachandran
>
> CacheCapacityUsed goes negative, CacheCapacityRemaining is a lot higher than
> the original cache size.
> This was while using the LRFU cache policy.
> Reproduces when running a query which reads far too much data to store in
> cache.
> {code}
> name: "Hadoop:service=LlapDaemon,name=LlapDaemonCacheMetrics-",
> tag.ProcessName: "LlapDaemon",
> tag.SessionId: "37c590b9-cccd-4b81-8b5f-36b3659c3454",
> CacheCapacityRemaining: 15958381947264,
> CacheCapacityTotal: 10737418240,
> CacheCapacityUsed: -15947644529024,
> CacheReadRequests: 5837,
> CacheRequestedBytes: 28996627387,
> CacheHitBytes: 8266607002,
> CacheAllocatedArena: 79,
> CacheNumLockedBuffers: 315,
> CacheHitRatio: 0.28508857
> {code}
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