Hao Hao has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/15830 )

Change subject: [fs] fixed file num low live ratio metadata compaction policy 
when startup
......................................................................


Patch Set 2:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/15830/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/15830/2//COMMIT_MSG@18
PS2, Line 18: consumptio
nit: consumption


http://gerrit.cloudera.org:8080/#/c/15830/2//COMMIT_MSG@20
PS2, Line 20:  would help
nit: remove.


http://gerrit.cloudera.org:8080/#/c/15830/2//COMMIT_MSG@24
PS2, Line 24: Limit the num of metadata files to be compacted could help avoid 
OOM.
Can you explain more about how this flag (which is to limit the number of 
metadata files to be compacted) can help avoid OOM? Ideally, wouldn't the more 
compaction of metadata files (number of metadata files decrease), the less the 
memory will be used?


http://gerrit.cloudera.org:8080/#/c/15830/2/src/kudu/fs/log_block_manager.cc
File src/kudu/fs/log_block_manager.cc:

http://gerrit.cloudera.org:8080/#/c/15830/2/src/kudu/fs/log_block_manager.cc@2631
PS2, Line 2631: FLAGS_max_num_low_live_ratio_metadata_file_to_compact >
              :         lo
nit: alignment.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ifad1d6de4e61a1ddcfb35743abd71b57d6418896
Gerrit-Change-Number: 15830
Gerrit-PatchSet: 2
Gerrit-Owner: wangning <[email protected]>
Gerrit-Reviewer: Hao Hao <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Tue, 28 Apr 2020 23:08:29 +0000
Gerrit-HasComments: Yes

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