Hi Gopi, Check if you can run "groups -F hduser". I think it's causing the delay.
Daryn On Mar 31, 2013, at 1:17 AM, Gopi Krishna M wrote: Hi.. I have installed hadoop 0.23.5 and is working fine on two of my installations. In a new installation on Windows Azure VMs, I am seeing an inordinate delay (of 1 minute) when doing a simple dfs ls command. This is a 3 node cluster, running 64 bit Ubuntu 12.04.1 LTS, Sun jre command : bin/hadoop dfs -ls / With log set to DEBUG, following is the output on the console. The logs in bold show the sleep/timeout/delay of 1 minute. Any pointers on what to check for / what is the reason for this delay? 13/03/31 05:48:55 DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.loginSuccess with annotation @org.apache. hadoop.metrics2.annotation.Metric(valueName=Time, about=, value=[Rate of successful kerberos logins and latency (milliseconds)], always=false, type=DEFAULT, sampleName=Ops) 13/03/31 05:48:55 DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.loginFailure with annotation @org.apache. hadoop.metrics2.annotation.Metric(valueName=Time, about=, value=[Rate of failed kerberos logins and latency (milliseconds)], always=false, type=DEFAULT, sampleName=Ops) 13/03/31 05:48:55 DEBUG impl.MetricsSystemImpl: UgiMetrics, User and group related metrics 13/03/31 05:49:55 DEBUG security.Groups: Creating new Groups object 13/03/31 05:49:55 DEBUG security.Groups: Group mapping impl=org.apache.hadoop.security.ShellBasedUni xGroupsMapping; cacheTimeout=300000 13/03/31 05:50:55 DEBUG security.UserGroupInformation: hadoop login 13/03/31 05:50:55 DEBUG security.UserGroupInformation: hadoop login commit 13/03/31 05:50:55 DEBUG security.UserGroupInformation: using local user:UnixPrincipal: hduser 13/03/31 05:50:55 DEBUG security.UserGroupInformation: UGI loginUser:hduser (auth:SIMPLE) 13/03/31 05:50:56 DEBUG hdfs.DFSClient: Short circuit read is false 13/03/31 05:50:56 DEBUG ipc.Client: The ping interval is 60000 ms. 13/03/31 05:50:56 DEBUG ipc.Client: Use SIMPLE authentication for protocol ClientProtocol 13/03/31 05:50:56 DEBUG ipc.Client: Connecting to XXXXXX:9000 Thanks Gopi
