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From "Lakshmi VS (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8662) In failover state, HDFS commands fail on "Retrying connect to server:<master1>"
Date Wed, 24 Jun 2015 22:31:04 GMT
Lakshmi VS created HDFS-8662:
--------------------------------

             Summary: In failover state, HDFS commands fail on "Retrying connect to server:<master1>"
                 Key: HDFS-8662
                 URL: https://issues.apache.org/jira/browse/HDFS-8662
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: ha, HDFS
    Affects Versions: 2.3.0
         Environment: 3-master cluster with 3 data nodes and 1 edge node.

            Reporter: Lakshmi VS


Steps (on a 3M cluster):
1. Poweroff master1.
2. Failover to master2.
3. On HDFS commands, there are messages indicating failed attempt to connect to master1, though
namenode is active and running on master2.
{code}
infinity2:~ # su - hdfs -c "hdfs haadmin -getServiceState nn2"
active
infinity2:~ # su hdfs -c "hdfs dfs -ls /"
15/06/24 15:28:15 INFO ipc.Client: Retrying connect to server: infinity1.labs.teradata.com/39.0.24.1:8020.
Already tried 0 time(s); retry policy is RetryPolicy[MultipleLinearRandomRetry[6x10000ms,
10x60000ms], TryOnceThenFail]
15/06/24 15:28:31 INFO ipc.Client: Retrying connect to server: infinity1.labs.teradata.com/39.0.24.1:8020.
Already tried 1 time(s); retry policy is RetryPolicy[MultipleLinearRandomRetry[6x10000ms,
10x60000ms], TryOnceThenFail]
Found 7 items
drwxrwxrwx   - yarn   hadoop          0 2015-06-24 14:42 /app-logs
drwxr-xr-x   - hdfs   hdfs            0 2015-06-24 06:16 /apps
drwxr-xr-x   - hdfs   hdfs            0 2015-06-24 06:14 /hdp
drwxr-xr-x   - mapred hdfs            0 2015-06-24 06:15 /mapred
drwxrwxrwx   - mapred hadoop          0 2015-06-24 06:15 /mr-history
drwxrwxrwx   - hdfs   hdfs            0 2015-06-24 06:16 /tmp
drwxr-xr-x   - hdfs   hdfs            0 2015-06-24 06:17 /user
infinity2:~ # ps -fu hdfs
UID        PID  PPID  C STIME TTY          TIME CMD
hdfs     16318     1  0 06:25 ?        00:00:40 /opt/teradata/jvm64/jdk8/bin/java -Dproc_journalnode
-Xmx4096m -Dhdp.version=2.3.0.0-2462 -Djava.net.prefe
hdfs     16859     1  0 06:26 ?        00:00:29 /opt/teradata/jvm64/jdk8/bin/java -Dproc_zkfc
-Xmx4096m -Dhdp.version=2.3.0.0-2462 -Djava.net.preferIPv4St
hdfs     17791     1  0 06:26 ?        00:02:34 /opt/teradata/jvm64/jdk8/bin/java -Dproc_namenode
-Xmx4096m -Dhdp.version=2.3.0.0-2462 -Djava.net.preferIP
infinity2:~ #
{code}




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