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Date: Tue, 28 Jul 2015 02:51:19 +0900
From: Masatake Iwasaki <iwasakims@oss.nttdata.co.jp>
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To: dev@hbase.apache.org, hbase-dev@hadoop.apache.org
Subject: Re: HTrace
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 > Thank you for getting back to me. Yes I see the Client_htrace.out getting
 > created on the client node. However it is empty. We are using htrace-2.04
 > version. I believe that writes the span asynchronously. Also the 
client node
 > is running tomcat for serving requests. Would this be a problem?

Hmm... Do you have multiple processes on the client?
SpanReceiverHost must be initialized in each process.
If you call SpanReceiverHost#getInstance in one process and
call Trace#startSpan in another process,
the client span is not written to file.

I think running Tomcat is not related to the issue.


 > Is there any need to call closeReceivers in the client side code ? I 
tried
 > it but that did not seem to work.

SpanReceiverHost#closeReceivers should be called on just before process exit
but spans will be written to file immediately without that.


On 7/28/15 01:47, Priyanka B wrote:
 > Hi Masatake,
 >
 > Thank you for getting back to me. Yes I see the Client_htrace.out getting
 > created on the client node. However it is empty. We are using htrace-2.04
 > version. I believe that writes the span asynchronously. Also the 
client node
 > is running tomcat for serving requests. Would this be a problem?
 >
 > Is there any need to call closeReceivers in the client side code ? I 
tried
 > it but that did not seem to work.
 >
 >
 > Thanks,
 > Priyanka
 >
 >
 >
 > --
 > View this message in context: 
http://apache-hbase.679495.n3.nabble.com/HTrace-tp4056705p4073515.html
 > Sent from the HBase Developer mailing list archive at Nabble.com.