[jira] [Updated] (CASSANDRA-16027) bin/cassandra may fail to execute in certain environments due to unhandled output pipe

["Paulo Motta (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-16027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paulo Motta updated CASSANDRA-16027:
------------------------------------
     Bug Category: Parent values: Packaging(13660)Level 1 values: All(13663)
       Complexity: Low Hanging Fruit
      Component/s: Packaging
    Discovered By: User Report
         Severity: Low
           Status: Open  (was: Triage Needed)

> bin/cassandra may fail to execute in certain environments due to unhandled output pipe
> --------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-16027
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16027
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Packaging
>            Reporter: Christopher Bradford
>            Priority: Normal
>
> While developing Docker images for C* 3.11.6 I noticed bin/cassandra failed to start when executed with nohup in a container based Red Hat Universal Base Image on Kubernetes. Curiously this issue could not be reproduced when simply running the container on Docker. Instead it had to be scheduled within a k8s pod.
>  
> Running an strace indicates the following:
> {code:java}
> [pid 3666026] write(2, "OpenJDK 64-Bit Server VM warning: ", 34) = -1 EPIPE (Broken pipe) {code}
>  
> The issue occurs before the system.log file is created. After further digging in to the command being run it was determined the bin/cassandra file was not redirecting all output pipes. In this particular environment this leads to the process going defunct and no Cassandra running.
>  
> The 4 lines starting with 
> {code:java}
> exec $NUMACTL {code}
> are not handling one of the outputs (stderr or stdout). As a workaround suffixing each line with 
> {code:java}
> > /var/log/cassandra/stdout.log 2> /var/log/cassandra/stderr.log
> {code}
> {{resolves the issue and Cassandra starts without any issues.}}
>  
> {{Rather than bake this into our containers the fix should make its way upstream.}}



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