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https://issues.apache.org/jira/browse/ARTEMIS-2257?focusedWorklogId=202666&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-202666
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ASF GitHub Bot logged work on ARTEMIS-2257:
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Author: ASF GitHub Bot
Created on: 22/Feb/19 14:45
Start Date: 22/Feb/19 14:45
Worklog Time Spent: 10m
Work Description: clebertsuconic commented on issue #2558: ARTEMIS-2257
Synchronize SharedEventLoopGroup shutdownGracefully
URL: https://github.com/apache/activemq-artemis/pull/2558#issuecomment-466420409
@wy96f did you see my comment on the JIRA?
Synchronized SharedEventLoopGroup is not the bug, it's the fix you applied
to fix the bug.
I don't know in what condition the issue happened.
Can you add more detail on how it happened? a test would be great if
possible... if you think a test is almost impossible due to an issue lets
discuss and see if there's a way around.
Fixes without tests should be an exception... not the rule.
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Issue Time Tracking
-------------------
Worklog Id: (was: 202666)
Time Spent: 20m (was: 10m)
> Synchronize SharedEventLoopGroup shutdownGracefully to prevent race conditions
> ------------------------------------------------------------------------------
>
> Key: ARTEMIS-2257
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2257
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.6.4
> Reporter: yangwei
> Priority: Critical
> Time Spent: 20m
> Remaining Estimate: 0h
>
> While thread a shutdowns shared event loop, between scheduling a task and set
> the shutdown reference thread b calls getInstance() and retrieves ready
> shutting down instance. Add synchronized block to fix the problem.
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