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https://issues.apache.org/jira/browse/GEODE-9408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17411419#comment-17411419
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Geode Integration commented on GEODE-9408:
------------------------------------------
Seen in [distributed-test-openjdk8
#1583|https://concourse.apachegeode-ci.info/teams/main/pipelines/apache-develop-mass-test-run/jobs/distributed-test-openjdk8/builds/1583]
... see [test
results|http://files.apachegeode-ci.info/builds/apache-develop-mass-test-run/1.15.0-build.0466/test-results/distributedTest/1630789346/]
or download
[artifacts|http://files.apachegeode-ci.info/builds/apache-develop-mass-test-run/1.15.0-build.0466/test-artifacts/1630789346/distributedtestfiles-openjdk8-1.15.0-build.0466.tgz].
> Avoid duplicate events sent by Serial Gateway Sender when
> group-transaction-events is true
> ------------------------------------------------------------------------------------------
>
> Key: GEODE-9408
> URL: https://issues.apache.org/jira/browse/GEODE-9408
> Project: Geode
> Issue Type: Bug
> Components: wan
> Reporter: Alberto Gomez
> Assignee: Alberto Gomez
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> When group-transaction-events is set to true for a serial gateway sender, it
> is possible that events that were retrieved from the queue to be added to a
> batch in order to complete a transaction are later sent again in another
> batch due to a bug in the removal logic of events when the ack for a batch is
> received from the receiver.
> This situation has been seen when several clients are sending transactions to
> a Geode cluster when the events for the transactions sent by the clients are
> mixed in the gateway sender queue.
>
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