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https://issues.apache.org/jira/browse/CASSANDRA-8965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14982986#comment-14982986
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Ariel Weisberg commented on CASSANDRA-8965:
-------------------------------------------

How many writers are there? Is the little bit of memory saved by not having 
extra copies of the file descriptor worth having the additional code to 
write/read and test?

> Cassandra retains a file handle to the directory its writing to for each 
> writer instance
> ----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8965
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8965
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benedict
>            Priority: Trivial
>             Fix For: 2.1.x, 2.2.x, 3.1
>
>
> We could either share this amongst the CF object, or have a shared 
> ref-counted cache that opens a reference and shares it amongst all writer 
> instances, closing it once they all close.



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