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();
> Perhaps I may be missing the entire picture here. Do we flush the tablet_da
> Do we flush the tablet_data_state_ before we delete log/meta?

Yes, TSTabletManager::DeleteTabletData() calls 
TabletMetadata::DeleteTabletData() (which flushes the state change) before it 
deletes the WALs.

> It appeared like with your patch earlier we were skipping tablet_data_state_ 
> flush when a healthy but empty tablet was about to get tombstoned

No, it was only skipping the flush if the metadata was _already_ in the 
'tombstoned' state, not in the case that it was transitioning from a normal 
state to a deleted one.


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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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