firegun created MAPREDUCE-5606:
----------------------------------
Summary: JobTracker blocked for DFSClient: Failed recovery attempt
Key: MAPREDUCE-5606
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5606
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker
Affects Versions: 1.0.3
Environment: centos 5.8 jdk 1.7
Reporter: firegun
Priority: Critical
when a datanode was crash,the server can ping ok,but can not call rpc ,and
also can not ssh login. and then jobTracker may be request a block on this
datanode.
it will happened ,the JobTracker can not work,the webUI is also unwork,hadoop
job -list also unwork,the jobTracker logs no other info .
and then we need to restart the datanode.
then jobTraker can work too,but the taskTracker num come to zero,
we need run : hadoop mradmin -refreshNodes
then the JobTracker begin to add taskTraker ,but is very slowly.
this problem occur 5time in 2weeks.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
