Hao Hao has posted comments on this change.

Change subject: KUDU-2055 [part 1]: Coalesce hole punching when deleting groups 
of blocks
......................................................................


Patch Set 7:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/7656/6/src/kudu/fs/block_manager.h
File src/kudu/fs/block_manager.h:

Line 170: // used to specify directories based on block type (e.g. to prefer 
bloom block
> Won't you need some sort of shared ownership in order to allow BlockDeletio
Yes, but the main reason for doing so is to improve performance by coalescing 
hole punching belongs to the same container (Otherwise, we do not need to make 
it a shared ownership). Given we do not want to 'change any deletion semantics 
or improve performance' in this patch, I feel we can move this logic into next 
patch. But I am open to either options (either put it in this patch or next 
one), if you have a stronger preference.


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Gerrit-MessageType: comment
Gerrit-Change-Id: Iecb252b3a5665d5471bb82301d0c8012a68de959
Gerrit-PatchSet: 7
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Hao Hao <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Dan Burkert <[email protected]>
Gerrit-Reviewer: Hao Hao <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Tidy Bot
Gerrit-HasComments: Yes

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