Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9571 )

Change subject: [release_notes] rolling upgrade 1.6 -> 1.7 isn't possible
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Patch Set 2:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/9571/2/docs/release_notes.adoc
File docs/release_notes.adoc:

http://gerrit.cloudera.org:8080/#/c/9571/2/docs/release_notes.adoc@35
PS2, Line 35:   are required. A rolling upgrade will _not_ work because the 
default replica
> What will happen if a user tries to do a rolling upgrade?
It depends on how they try to do that -- I'll add some notes.

There is a workaround, but it assumes some amount of downtime, unfortunately 
(i.e. clients are not able to read/write data from/to Kudu cluster anyway).

Or they can switch into 3-2-3 scheme for 1.7 -- that's the only way to have 
rolling upgrade with no downtime.

BTW, anyway we never guaranteed the rolling upgrade would work, we always said 
it '... may work ...'.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I49f1f1e17cdaee272592d598431a33dbfe55123f
Gerrit-Change-Number: 9571
Gerrit-PatchSet: 2
Gerrit-Owner: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <danburk...@apache.org>
Gerrit-Reviewer: Grant Henke <granthe...@gmail.com>
Gerrit-Reviewer: Jean-Daniel Cryans <jdcry...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Will Berkeley <wdberke...@gmail.com>
Gerrit-Comment-Date: Mon, 12 Mar 2018 17:34:05 +0000
Gerrit-HasComments: Yes

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