Todd Lipcon has posted comments on this change.

Change subject: Avoid extra fsyncs of tombstoned tablets during startup
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Patch Set 3:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4915/3/src/kudu/tablet/tablet_metadata.cc
File src/kudu/tablet/tablet_metadata.cc:

Line 173:       return Status::OK();
> I wonder if we can narrow the 'skip-fsync' to tombstoned tablet bootstrap s
OK, I reorganized the code a bit in the new revision of the patch: now we check 
whether the tombstoning is a 'no-op' at a higher level, with the plus that we 
no longer log a WARN message per tombstoned tablet during startup.

Not entirely following what you mean by the bit about the superblock with no 
log -- that's only the case for a tombstoned tablet, right? What's the case 
you're talking about? We write the metadata to tombstoned before deleting the 
log/meta so I'm not sure how you could have a non-deleted metadata state with 
missing log.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I60cb184b8de2a6a381371ddcf2fb938a19757eec
Gerrit-PatchSet: 3
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Dinesh Bhat <[email protected]>
Gerrit-Reviewer: Jean-Daniel Cryans <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <[email protected]>
Gerrit-Reviewer: Tidy Bot
Gerrit-Reviewer: Todd Lipcon <[email protected]>
Gerrit-HasComments: Yes

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