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https://issues.apache.org/jira/browse/CASSANDRA-11576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joshua McKenzie updated CASSANDRA-11576:
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Reviewer: Joshua McKenzie
> Add support for JNA mlockall(2) on POWER
> ----------------------------------------
>
> Key: CASSANDRA-11576
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11576
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Environment: POWER architecture
> Reporter: Rei Odaira
> Priority: Minor
> Fix For: 2.1.x, 2.2.x, 3.0.x, 3.x
>
> Attachments: 11576-2.1.txt
>
>
> org.apache.cassandra.utils.CLibrary contains hard-coded C-macro values to be
> passed to system calls through JNA. These values are system-dependent, and as
> far as I investigated, Linux and AIX on the IBM POWER architecture define
> {{MCL_CURRENT}} and {{MCL_FUTURE}} (for mlockall(2)) as different values than
> the current hard-coded values. As a result, mlockall(2) fails on these
> platforms.
> {code}
> WARN 18:51:51 Unknown mlockall error 22
> {code}
> I am going to provide a patch to support JNA mlockall(2) on POWER.
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