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https://issues.apache.org/jira/browse/CASSANDRA-14556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16555696#comment-16555696
 ] 

ASF GitHub Bot commented on CASSANDRA-14556:
--------------------------------------------

Github user iamaleksey commented on a diff in the pull request:

    https://github.com/apache/cassandra/pull/239#discussion_r205109588
  
    --- Diff: src/java/org/apache/cassandra/db/compaction/Verifier.java ---
    @@ -361,12 +361,26 @@ public RangeOwnHelper(List<Range<Token>> 
normalizedRanges)
              * @throws RuntimeException if the key is not contained
              */
             public void check(DecoratedKey key)
    +        {
    +            if (!checkBoolean(key))
    --- End diff --
    
    Yep, this is exactly what I had in mind, thanks. Not sure of the names, 
though. Would prefer the throwing `check()` to be renamed into `validate()`, 
and `checkBoolean()` to become `check()`. `validate()` is the name we often 
give to such methods (that throw on failure).


> Optimize streaming path in Cassandra
> ------------------------------------
>
>                 Key: CASSANDRA-14556
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14556
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Streaming and Messaging
>            Reporter: Dinesh Joshi
>            Assignee: Dinesh Joshi
>            Priority: Major
>              Labels: Performance
>             Fix For: 4.x
>
>
> During streaming, Cassandra reifies the sstables into objects. This creates 
> unnecessary garbage and slows down the whole streaming process as some 
> sstables can be transferred as a whole file rather than individual 
> partitions. The objective of the ticket is to detect when a whole sstable can 
> be transferred and skip the object reification. We can also use a zero-copy 
> path to avoid bringing data into user-space on both sending and receiving 
> side.



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