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https://issues.apache.org/jira/browse/HBASE-15437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15218605#comment-15218605
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deepankar commented on HBASE-15437:
-----------------------------------

This means that responseTime warning will not contain responseSize and the 
responseSize will not contain information about responseTimes right ?

> Response size calculated in RPCServer for warning tooLarge responses does NOT 
> count CellScanner payload
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-15437
>                 URL: https://issues.apache.org/jira/browse/HBASE-15437
>             Project: HBase
>          Issue Type: Bug
>          Components: IPC/RPC
>            Reporter: deepankar
>
> After HBASE-13158 where we respond back to RPCs with cells in the payload , 
> the protobuf response will just have the count the cells to read from 
> payload, but there are set of features where we log warn in RPCServer 
> whenever the response is tooLarge, but this size now is not considering the 
> sizes of the cells in the PayloadCellScanner. Code form RPCServer
> {code}
>       long responseSize = result.getSerializedSize();
>       // log any RPC responses that are slower than the configured warn
>       // response time or larger than configured warning size
>       boolean tooSlow = (processingTime > warnResponseTime && 
> warnResponseTime > -1);
>       boolean tooLarge = (responseSize > warnResponseSize && warnResponseSize 
> > -1);
>       if (tooSlow || tooLarge) {
>         // when tagging, we let TooLarge trump TooSmall to keep output simple
>         // note that large responses will often also be slow.
>         logResponse(new Object[]{param},
>             md.getName(), md.getName() + "(" + param.getClass().getName() + 
> ")",
>             (tooLarge ? "TooLarge" : "TooSlow"),
>             status.getClient(), startTime, processingTime, qTime,
>             responseSize);
>       }
> {code}
> Should this feature be not supported any more or should we add a method to 
> CellScanner or a new interface which returns the serialized size (but this 
> might not include the compression codecs which might be used during response 
> ?) Any other Idea this could be fixed ?



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