Adar Dembo has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/12776 )

Change subject: [util] separate generalized CacheMetrics
......................................................................


Patch Set 2:

(3 comments)

http://gerrit.cloudera.org:8080/#/c/12776/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/12776/2//COMMIT_MSG@10
PS2, Line 10: using
to use


http://gerrit.cloudera.org:8080/#/c/12776/2//COMMIT_MSG@10
PS2, Line 10: The LRUCache now uses
            : LRUCacheMetrics which has some specifics attributed to LRUCache 
itself.
Not seeing LRUCacheMetrics here; was this from a previous approach?


http://gerrit.cloudera.org:8080/#/c/12776/2/src/kudu/util/file_cache.cc
File src/kudu/util/file_cache.cc:

http://gerrit.cloudera.org:8080/#/c/12776/2/src/kudu/util/file_cache.cc@465
PS2, Line 465:     unique_ptr<BlockCacheMetrics> metrics(new 
BlockCacheMetrics(entity));
Not your fault, but this change highlights that the metrics used for FileCache 
were bogus. Do the "block cache" metrics actually report the sum of both 
BlockCache and FileCache usage? If so, that's pretty bad and we should fix it.

If you can confirm that this is the case, please file a JIRA.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ic77b937e23c600763ec987a96ce98a47ad95ee18
Gerrit-Change-Number: 12776
Gerrit-PatchSet: 2
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Andrew Wong <[email protected]>
Gerrit-Reviewer: Hao Hao <[email protected]>
Gerrit-Comment-Date: Tue, 19 Mar 2019 04:11:29 +0000
Gerrit-HasComments: Yes

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