Hadoop QA commented on ZOOKEEPER-769:
-1 overall. Here are the results of testing the latest attachment
against trunk revision 944515.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
This message is automatically generated.
> Leader can treat observers as quorum members
> Key: ZOOKEEPER-769
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-769
> Project: Zookeeper
> Issue Type: Bug
> Affects Versions: 3.3.0
> Environment: Ubuntu Karmic x64
> Reporter: Sergey Doroshenko
> Assignee: Sergey Doroshenko
> Fix For: 3.4.0
> Attachments: follower.log, leader.log, observer.log, warning.patch,
> zoo1.cfg, ZOOKEEPER-769.patch, ZOOKEEPER-769.patch
> In short: it seems leader can treat observers as quorum members.
> Steps to repro:
> 1. Server configuration: 3 voters, 2 observers (attached).
> 2. Bring up 2 voters and one observer. It's enough for quorum.
> 3. Shut down the one from the quorum who is the follower.
> As I understand, expected result is that leader will start a new election
> round so that to regain quorum.
> But the real situation is that it just says goodbye to that follower, and is
> still operable. (When I'm shutting down 3rd one -- observer -- leader starts
> trying to regain a quorum).
> (Expectedly, if on step 3 we shut down the leader, not the follower,
> remaining follower starta new leader election, as it should be).
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