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https://issues.apache.org/jira/browse/CASSANDRA-17922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17622899#comment-17622899
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Brandon Williams commented on CASSANDRA-17922:
----------------------------------------------
[Here|https://ci-cassandra.apache.org/job/Cassandra-devbranch/2042/] is a run
with no Jolokia errors, and we can see
[here|https://ci-cassandra.apache.org/job/Cassandra-devbranch-dtest-novnode/label=cassandra-dtest,split=12/1342/consoleFull]
and we can see the new code in action:
{noformat}
08:45:59 13:46:05,196 tools.jmxutils INFO Port 8778 open for jolokia
08:46:05 13:46:06,445 tools.jmxutils WARNING Failed to start jolokia agent
(command was: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -cp
/usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar:/home/cassandra/cassandra/cassandra-dtest/tools/../lib/jolokia-jvm-1.7.1-agent.jar
org.jolokia.jvmagent.client.AgentLauncher --host 127.0.0.1 --port 8778 start
14308): Command '('/usr/lib/jvm/java-8-openjdk-amd64/bin/java', '-cp',
'/usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar:/home/cassandra/cassandra/cassandra-dtest/tools/../lib/jolokia-jvm-1.7.1-agent.jar',
'org.jolokia.jvmagent.client.AgentLauncher', '--host', '127.0.0.1', '--port',
'8778', 'start', '14308')' returned non-zero exit status 1.
08:46:06 13:46:06,446 tools.jmxutils WARNING Exit status was: 1
08:46:06 13:46:06,447 tools.jmxutils WARNING Output was: Couldn't start agent
for PID 14308
08:46:06 Possible reason could be that port '8778' is already occupied.
08:46:06 Please check the standard output of the target process for a detailed
error message.
08:46:06
08:46:06 13:46:08,822 tools.jmxutils INFO Jolokia reports being attached on try
1, returning successfully
08:46:08 13:46:09,304 tools.jmxutils INFO Port 8778 open for jolokia
08:46:09 13:46:10,471 tools.jmxutils INFO Jolokia successful on try 0
08:46:10 13:46:10,943 tools.jmxutils INFO Port 8778 open for jolokia
08:46:10 13:46:12,109 tools.jmxutils INFO Jolokia successful on try 0
08:46:12 PASSED13:46:12,648 ccm DEBUG Log-watching thread exiting.
{noformat}
> Jolokia agent fails to connect though port is available
> -------------------------------------------------------
>
> Key: CASSANDRA-17922
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17922
> Project: Cassandra
> Issue Type: Bug
> Components: Build
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Normal
> Fix For: 4.1.x, 4.x
>
>
> In CASSANDRA-17872 we added protection around failures similar to this,
> caused by the port being in use, which is no longer the case:
> {code}
> subprocess.CalledProcessError: Command
> '('/usr/lib/jvm/java-8-openjdk-amd64/bin/java', '{-}cp',
> '/usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar:/home/cassandra/cassandra/cassandra-dtest/tools/../lib/jolokia-jvm-1.7.1-agent.jar',
> 'org.jolokia.jvmagent.client.AgentLauncher', '{-}{-}host', '127.0.0.2',
> '{-}-port', '8778', 'start', '1123')' returned non-zero exit status 1.
> {code}
> [https://ci-cassandra.apache.org/job/Cassandra-4.1/169/testReport/junit/dtest-novnode.auth_test/TestNetworkAuth/test_revoked_dc_access/]
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