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From "Alex Rudyy (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (QPID-8086) [Broker-J] Create tool to permit recovery from QPID-8066
Date Fri, 26 Jan 2018 15:28:00 GMT

     [ https://issues.apache.org/jira/browse/QPID-8086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Rudyy resolved QPID-8086.
------------------------------
    Resolution: Fixed

The tool implementation looks OK to me, though, it is really a {{ConfigurationRecordPurger}}
rather than {{OrphanConfigurationRecordPurger}}, as it can delete any configuration entry
and it does not check whether it is orphan or not. Potentially, it can be further improved
to evaluate the orphan records based on information stored in the store rather than from command
line arguments {{-targetUuid}}. As it is unlikely, that anyone would ever ran into the defect,
I am ok to leave the implementation as it is.

> [Broker-J] Create tool to permit recovery from QPID-8066
> --------------------------------------------------------
>
>                 Key: QPID-8086
>                 URL: https://issues.apache.org/jira/browse/QPID-8086
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Broker-J
>            Reporter: Keith Wall
>            Assignee: Keith Wall
>            Priority: Major
>             Fix For: qpid-java-broker-7.0.1, qpid-java-6.1.6
>
>
> Defect QPID-8066 has the potential to leave the Broker in a state where it cannot be
restarted. The recovery phase, on encountering the orphan records, throws an exception and
this puts the virtualhost into an {{ERROR}} state.  There is no facility in Broker-J to recover
from this short of recreation of the virtualhost.
> If the configuration store is backed by JDBC, then a workaround is to connect to the
database and remove the offending rows.   Unfortunately if the virtualhost is backed by BDB
(for configuration) or BDB HA, the user has no convenient way to recover the situation.  BDB
JE has no command line interface so a Java program would have to be written with knowledge
of the store's structure.  The HA case is further complicated by the fact that sufficient
nodes would have to be available to provide quorum within the group.



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