What means PacketResponder ...terminating ?

2010-04-09 Thread Al Lias
While searching for a HBase Problem I came across this log messages:

...
box00:
/var/log/hadoop/hadoop-hadoop-datanode-box00.log.2010-04-08:2010-04-08
16:39:29,200 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
PacketResponder 0 for block blk_991235084167234271_101356 terminating
box05:
/var/log/hadoop/hadoop-hadoop-datanode-box05.log.2010-04-08:2010-04-08
16:39:29,200 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
PacketResponder 1 for block blk_991235084167234271_101356 terminating
box13:
/var/log/hadoop/hadoop-hadoop-datanode-box13.log.2010-04-08:2010-04-08
16:39:29,200 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
PacketResponder 2 for block blk_991235084167234271_101356 terminating

As they seem to preceed some HBase Problem, I would like to understand
what it means.

Thx for any help,

Al


Re: What means PacketResponder ...terminating ?

2010-04-09 Thread Todd Lipcon
Hi Al,

It just means that the write pipeline is tearing itself down. Please see my
response on the hbase list for further explanation of your particular issue.

-Todd

On Fri, Apr 9, 2010 at 12:15 AM, Al Lias al.l...@gmx.de wrote:

 While searching for a HBase Problem I came across this log messages:

 ...
 box00:
 /var/log/hadoop/hadoop-hadoop-datanode-box00.log.2010-04-08:2010-04-08
 16:39:29,200 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
 PacketResponder 0 for block blk_991235084167234271_101356 terminating
 box05:
 /var/log/hadoop/hadoop-hadoop-datanode-box05.log.2010-04-08:2010-04-08
 16:39:29,200 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
 PacketResponder 1 for block blk_991235084167234271_101356 terminating
 box13:
 /var/log/hadoop/hadoop-hadoop-datanode-box13.log.2010-04-08:2010-04-08
 16:39:29,200 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
 PacketResponder 2 for block blk_991235084167234271_101356 terminating

 As they seem to preceed some HBase Problem, I would like to understand
 what it means.

 Thx for any help,

Al




-- 
Todd Lipcon
Software Engineer, Cloudera