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https://issues.apache.org/jira/browse/CASSANDRA-16565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17799570#comment-17799570
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Stefan Miklosovic commented on CASSANDRA-16565:
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[~claude] as CASSANDRA-19196 is merged, we need to rebase this on top of trunk 
and figure out how to read kernel version from oshi and incorporate it into 
this patch (probably as a new method on SystemInfo). Then we need to figure out 
how to call SystemInfo from two places (Jacek's patch and process environment 
check) without unnecessarily creating two instances. I think what would be nice 
is to follow what [~jlewandowski] did in his patch in FBUtilities, where he 
memoized kernel version. We just need to replace the implementations of these 
methods where we will read kernel version from memoized SystemInfo.

> Remove dependency on sigar
> --------------------------
>
>                 Key: CASSANDRA-16565
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16565
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Build
>            Reporter: David Capwell
>            Assignee: Claude Warren
>            Priority: Normal
>             Fix For: 5.x
>
>
> sigar is used to check if the environment has good settings for running C*, 
> but requires we bundle a lot of native libraries to perform this check (which 
> can also be done elsewhere).  This project also appears to be dead as the 
> last commit was around 6 years ago.
> With the move to resolve artifacts rather than commit them, removing this 
> dependency would remove majority of the artifacts fetched from GitHub.



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