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From Ying Tang <ivytang0...@gmail.com>
Subject chukwa agent doesn't collect the log suddenly , and after several days ,the agent crashes.
Date Mon, 25 Jul 2011 07:40:46 GMT
Hi all,

In my cluster , i have two chukwa agent and one collector .
At a time ,  *both chukwa agents's log :*
2011-07-18 00:03:28,688 INFO Timer-1 HttpConnector - # http chunks ACK'ed
since last report: 5
2011-07-18 00:04:28,697 INFO Timer-1 HttpConnector - # http chunks ACK'ed
since last report: 0
2011-07-18 00:05:28,706 INFO Timer-1 HttpConnector - # http chunks ACK'ed
since last report: 0
2011-07-18 00:06:28,714 INFO Timer-1 HttpConnector - # http chunks ACK'ed
since last report: 0
2011-07-18 00:07:29,340 INFO Timer-1 HttpConnector - # http chunks ACK'ed
since last report: 0

*And the collector *
2011-07-17 11:02:32,155 INFO Timer-3 SeqFileWriter -
stat:datacollection.writer.hdfs dataSize=0 dataRate=0
2011-07-17 11:02:43,074 INFO Timer-1 root -
stats:ServletCollector,numberHTTPConnection:0,numberchunks:0
2011-07-17 11:03:02,162 INFO Timer-3 SeqFileWriter -
stat:datacollection.writer.hdfs dataSize=0 dataRate=0
2011-07-17 11:03:32,168 INFO Timer-3 SeqFileWriter -
stat:datacollection.writer.hdfs dataSize=0 dataRate=0
2011-07-17 11:03:43,085 INFO Timer-1 root -
stats:ServletCollector,numberHTTPConnection:0,numberchunks:0
2011-07-17 11:04:02,174 INFO Timer-3 SeqFileWriter -
stat:datacollection.writer.hdfs dataSize=0 dataRate=0
2011-07-17 11:04:32,180 INFO Timer-3 SeqFileWriter -
stat:datacollection.writer.hdfs dataSize=0 dataRate=0
2011-07-17 11:04:43,096 INFO Timer-1 root -
stats:ServletCollector,numberHTTPConnection:0,numberchunks:0
2011-07-17 11:05:02,185 INFO Timer-3 SeqFileWriter -
stat:datacollection.writer.hdfs dataSize=0 dataRate=0

(the collector and agent has  different  timezone)
And the collector didn't collect any log.


What dons the "http chunks ACK'ed since last report: 0" means?
And from this log "http chunks ACK'ed since last report: 0" appears
to  agent crash, the chukwa port still on , but after several days, both
agents crashed without exceptions.


-- 
Best regards,

Ivy Tang

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