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https://issues.apache.org/jira/browse/CASSANDRA-15214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900394#comment-16900394
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Benedict edited comment on CASSANDRA-15214 at 8/5/19 8:45 PM:
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Sorry, I completely forgot to respond to this ticket so thanks for bumping it
[~djoshi3]
>From my POV, including a C JVMTI agent is absolutely fine, [~jolynch]. We'd
>have to take a closer look at jvmkill and jvmquake, and do our own brief audit
>of the version we include to ensure it seems to behave reasonably. But I
>don't see any problem with utilising non-Java functionality.
was (Author: benedict):
Sorry, I completely forgot to respond to this ticket so thanks for bumping it
[~djoshi3]
>From my POV, including a C JVMTI agent is absolutely fine. We'd have to take
>a closer look at jvmkill and jvmquake, and do our own brief audit of the
>version we include to ensure it seems to behave reasonably. But I don't see
>any problem with utilising non-Java functionality.
> OOMs caught and not rethrown
> ----------------------------
>
> Key: CASSANDRA-15214
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15214
> Project: Cassandra
> Issue Type: Bug
> Components: Messaging/Client, Messaging/Internode
> Reporter: Benedict
> Priority: Normal
> Fix For: 4.0
>
>
> Netty (at least, and perhaps elsewhere in Executors) catches all exceptions,
> so presently there is no way to ensure that an OOM reaches the JVM handler to
> trigger a crash/heapdump.
> It may be that the simplest most consistent way to do this would be to have a
> single thread spawned at startup that waits for any exceptions we must
> propagate to the Runtime.
> We could probably submit a patch upstream to Netty, but for a guaranteed
> future proof approach, it may be worth paying the cost of a single thread.
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