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https://issues.apache.org/jira/browse/CASSANDRA-14351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17771537#comment-17771537
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Stefan Miklosovic commented on CASSANDRA-14351:
-----------------------------------------------

I think we need to finish this first CASSANDRA-14500 (probably for RPM too).

Also, we could just ship this feature without any systemd scripting around, 
sure, I am just trying to find a way how to actually verify that this patch 
works because I have not seen that yet.

I will try to dust-off that branch in CASSANDRA-14500 and see if / how that 
integrates.

> Support systemd SD_NOTIFY interface during startup
> --------------------------------------------------
>
>                 Key: CASSANDRA-14351
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14351
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Packaging
>            Reporter: Thomas Bechtold
>            Assignee: Stefan Miklosovic
>            Priority: Normal
>             Fix For: 4.0.x, 4.1.x, 5.0.x, 5.x
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> When cassandra is started via systemd, it would be nice to support the 
> [SD_NOTIFY|https://www.freedesktop.org/software/systemd/man/sd_notify.html] 
> protocol so systemd know, when cassandra is ready (that can be use for 
> dependencies or when you need to wait until cassandra startup is done).
> A very simple implementation could be done using the 
> {code:java}
> systemd-notify --ready
> {code}
> command line tool (and ignore it if the tool is not there)



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