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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-6071) Removing designated primary/electable group override from a node in a group without quorum should cause it to return to WAITING
Date Sat, 06 Sep 2014 11:07:29 GMT

    [ https://issues.apache.org/jira/browse/QPID-6071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14124423#comment-14124423
] 

ASF subversion and git services commented on QPID-6071:
-------------------------------------------------------

Commit 1622844 from [~k-wall] in branch 'qpid/trunk'
[ https://svn.apache.org/r1622844 ]

QPID-6071: [Java Broker] Cause BDB HA to generate ping transaction if local quorum settings
are changed

* If user changes the settings used to judge whether quorum is present (that is designated
primary in the two node
  case and electable group override in the case of multi node groups), REF now generates a
'ping' transaction allow
  the node to promptly detect too few replicas.

> Removing designated primary/electable group override from a node in a group without quorum
should cause it to return to WAITING
> -------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: QPID-6071
>                 URL: https://issues.apache.org/jira/browse/QPID-6071
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: 0.31
>            Reporter: Keith Wall
>            Assignee: Keith Wall
>
> I have a two node group with nodes A and B.  
> # Shutdown node B,
> # Remaining node (A) correctly transitions into the WAITING role as it automatically
detects the loss of quorum.
> # Designate Primary (A)
> # Node A automatically transitions to MASTER.
> # Remove Primary Designation from A
> # Expected behaviour : node automatically transitions back to WAITING, actual behaviour:
node remains MASTER until next user transaction fails.
> There is an equivalent defect in a multi node group when electable group override is
mutated back to Majority.
> The defect will mean that the VH continues to accept connections and non-persistent transactions
until the first persistent transaction arrives.  At that point the node will transition correctly.



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