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https://issues.apache.org/jira/browse/CASSANDRA-7254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14191612#comment-14191612
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viasyn commented on CASSANDRA-7254:
-----------------------------------
Current workaround is really buggy.
We are using Jolokia (JMX->HTTP bridge) with C* too. Here is example solution:
https://github.com/causes/cassandra-nagios
Jolokia prevents no-arg jvm from exit due to buggy daemon threads monitor so c*
hangs on startup.
The only acceptable workaround for now is to override "properties" system
variable. This variable is undocumented and we afraid that it may disappear or
change behavior.
If you dont want to fix this workaround maybe you will add additional
environment variable to customize launch_service argument?
> NPE on startup if another Cassandra instance is already running
> ---------------------------------------------------------------
>
> Key: CASSANDRA-7254
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7254
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Tyler Hobbs
> Assignee: Brandon Williams
> Priority: Minor
> Fix For: 2.0.10, 2.1 rc3
>
> Attachments: 7254.txt
>
>
> After CASSANDRA-7087, if you try to start cassandra while another instance is
> already running, you'll see something like this:
> {noformat}
> $ bin/cassandra -f
> Error: Exception thrown by the agent : java.lang.NullPointerException
> {noformat}
> This is probably a JVM bug, but we should confirm that, open a JVM ticket,
> and see if we can give a more useful error message on the C* side.
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