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https://issues.apache.org/jira/browse/ROCKETMQ-19?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15794501#comment-15794501
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ASF GitHub Bot commented on ROCKETMQ-19:
----------------------------------------
Github user Zhang-Ke commented on the issue:
https://github.com/apache/incubator-rocketmq/pull/17
Duplicated with [https://github.com/apache/incubator-rocketmq/pull/22]PR
#22 (url)
> Thread-unsafe in MQAdminImpl#queryMessage
> -----------------------------------------
>
> Key: ROCKETMQ-19
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-19
> Project: Apache RocketMQ
> Issue Type: Bug
> Components: rocketmq-client
> Affects Versions: 4.0.0-incubating
> Reporter: ZhangKe
> Assignee: Xiaorui Wang
> Fix For: 4.0.0-incubating
>
>
> LinkedList.add() is not thread-safe, so it must be synchronized externally
> when using concurrently.
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