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https://issues.apache.org/jira/browse/CASSANDRA-19196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17796395#comment-17796395
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Stefan Miklosovic edited comment on CASSANDRA-19196 at 12/13/23 6:32 PM:
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I check the PR and what would be cool is to not depend on "uname", there is
also a lot of custom logic around running a process etc.
We are trying to get rid of sigar (CASSANDRA-16565) and we seem to go to change
it for oshi lib. Sigar is old, not maintained etc, it bundles a lot of libs we
dont need ... By replacing it for oshi we can save few megs when it comes to
distribution tarball ...
What would be nice is to investigate the this specifically (1), I am not sure
what string it would return but if it was kernel's version we can parse, we
could throw away a lot of things and "unify" how we get stuff like this from
underlying system.
(1)
https://github.com/oshi/oshi/blob/master/oshi-core/src/main/java/oshi/software/os/OperatingSystem.java#L130
EDIT
they seem to call "uname" as well
https://github.com/oshi/oshi/blob/master/oshi-core/src/main/java/oshi/software/os/linux/LinuxOperatingSystem.java#L197
Too bad they do not seem to parse kernel version as far as I see.
was (Author: smiklosovic):
I check the PR and what would be cool is to not depend on "uname", there is
also a lot of custom logic around running a process etc.
We are trying to get rid of sigar (CASSANDRA-16565) and we seem to go to change
it for oshi lib. Sigar is old, not maintained etc, it bundles a lot of libs we
dont need ... By replacing it for oshi we can save few megs when it comes to
distribution tarball ...
What would be nice is to investigate the this specifically (1), I am not sure
what string it would return but if it was kernel's version we can parse, we
could throw away a lot of things and "unify" how we get stuff like this from
underlying system.
(1)
https://github.com/oshi/oshi/blob/master/oshi-core/src/main/java/oshi/software/os/OperatingSystem.java#L130
> Don't allow to enable direct i/o with broken kernels
> ----------------------------------------------------
>
> Key: CASSANDRA-19196
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19196
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/Local Write-Read Paths
> Reporter: Jacek Lewandowski
> Assignee: Jacek Lewandowski
> Priority: Normal
> Fix For: 5.0-rc, 5.1
>
>
> https://lwn.net/Articles/954285/, found by [~rustyrazorblade]
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