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https://issues.apache.org/jira/browse/CASSANDRA-17763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17570271#comment-17570271
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Gil Ganz commented on CASSANDRA-17763:
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I agree with Caleb, best method is via yaml parameter, not sure it should be 
disabled by default though, is there any point in starting a node when pending 
compactions are at a really high value like 200? As previously mentioned actual 
ideal number depends on many variables, but perhaps it's better to always that 
that high value as a baseline. One thing to notice is that it requires hints to 
be enabled, otherwise by design each new node will be missing data. 

> Allow node to serve traffic only once compactions settle
> --------------------------------------------------------
>
>                 Key: CASSANDRA-17763
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17763
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Local/Compaction
>            Reporter: Gil Ganz
>            Priority: Normal
>             Fix For: 4.x
>
>
> Today when nodes are joined to the cluster, once data streaming is completed, 
> node starts serving traffic, but it's possible there are a lot of pending 
> compactions, so having reads accessing sstables during that time is going to 
> make these reads slower and load the server. In some cases performance is so 
> bad it can bring the application down. 
> Today I overcome this by stopping native transport to a node after join 
> finishes, and enabling it after compactions pending reach a certain 
> threshold, it would be nice to have that as part of the join process, only 
> consider join completed once there are not that many compactions pending. 



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