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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