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https://issues.apache.org/jira/browse/HBASE-18532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16139299#comment-16139299
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Hudson commented on HBASE-18532:
--------------------------------
FAILURE: Integrated in Jenkins build HBase-1.4 #878 (See
[https://builds.apache.org/job/HBase-1.4/878/])
HBASE-18532 Improve cache related stats rendered on RS UI (tedyu: rev
40dedb8df204b12e602860ea1029fcfb596dd679)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCache.java
* (edit)
hbase-external-blockcache/src/main/java/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CombinedBlockCache.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
* (edit)
hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/BlockCacheTmpl.jamon
> Improve cache related stats rendered on RS UI
> ---------------------------------------------
>
> Key: HBASE-18532
> URL: https://issues.apache.org/jira/browse/HBASE-18532
> Project: HBase
> Issue Type: Improvement
> Components: regionserver, UI
> Affects Versions: 1.1.2
> Reporter: Biju Nair
> Assignee: Biju Nair
> Fix For: 3.0.0, 1.4.0, 1.5.0, 2.0.0-alpha-3
>
> Attachments: COMBINED-STATS.PNG, HBASE-18532-1.1.2.PATCH,
> HBASE-18532-BRANCH-1.PATCH, HBASE-18532.PATCH, HBASE-18532-V1.0.PATCH,
> HBASE-18532-V2.0.PATCH, L1-STATS.PNG, L2-STATS.PNG
>
>
> The stats currently rendered for L1 and L2 cache are incorrect. Refer to the
> attached screenshots of stats from a cluster showing the combined cache
> stats, L1 stats and L2 stats. For e.g. the combined stats shows 38 GB used
> for cache while if we sum size of L1 and L2 cache the value is way less. One
> way we can improve this is to use the same stats used to populate the
> combined stats to render the values of L1 & L2 cache. Also for usability we
> can remove the table with details with BucketCache buckets from the L2 cache
> stats since this is going to be long for any installation using L2 cache.
> This will help in understanding the cache usage better. Thoughts? If there
> are no concerns will submit a patch.
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