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https://issues.apache.org/jira/browse/CASSANDRA-9822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14645693#comment-14645693
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Tim Whittington commented on CASSANDRA-9822:
--------------------------------------------
The 4096 is the value of {{PAGE_SIZE}} ({{getconf PAGE_SIZE}} to check), which
is the limit of the command line reported in {{/proc/<pid>/cmdline}}.
Changing PAGE_SIZE requires a kernel recompile, so the method of checking the
Cassandra process will probably need tweaking.
> Debian/Ubuntu init script status says that Cassandra is not running when it
> actually is
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-9822
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9822
> Project: Cassandra
> Issue Type: Bug
> Components: Packaging
> Environment: Any Ubuntu/Debian system
> Reporter: Eric Herot
> Assignee: Michael Shuler
>
> The reason: The current CMD_PATT regex can't match very long command lines.
> If a lot of Java options are used (thus causing the command line for
> Cassandra to be very long) the value of /proc/PID/cmdline is truncated before
> the phrase "CassandraDaemon" (at exactly 4096 characters) so the regex
> "cassandra.+CassandraDaemon" fails to match.
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