Adar Dembo has posted comments on this change.

Change subject: KUDU-1634. TS and master should delete tmp metadata files on 
startup
......................................................................


Patch Set 5:

> Are you guys worried about a user somehow accidentally having a
 > link from their data dir out to something like / ? I'm not sure
 > there's any real good reason why that would happen, but makes me
 > just a little nervous.

Then everything in / owned by the Kudu user will be deleted.

We can avoid that by not following symlinks, or at least not following them out 
of the data directories (i.e. symlinks that point to stuff within the data dirs 
could be followed). Though didn't you use a symlink once to redirect Kudu's 
placement of files (maybe cmeta files?) from one disk to another? I guess that 
use case wasn't for data directories.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I299e7b22c3f920430ff5d581cf7a507a83eb0101
Gerrit-PatchSet: 5
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Maxim Smyatkin <smyatkinma...@gmail.com>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Maxim Smyatkin <smyatkinma...@gmail.com>
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
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