I´m trying to run the following Spark example under Hadoop 2.6, but I get the following error:
INFO RMProxy: Connecting to ResourceManager at /0.0.0.0:8032 and the Client enters in a loop trying to connect. I´m running a cluster of two machines, one master and a slave.
./bin/spark-submit --class org.apache.spark.examples.SparkPi \
--master yarn-cluster \
--num-executors 3 \
--driver-memory 2g \
--executor-memory 2g \
--executor-cores 1 \
--queue thequeue \
lib/spark-examples*.jar \
10
This is the error I get:
15/12/06 13:38:28 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/12/06 13:38:29 INFO RMProxy: Connecting to ResourceManager at /0.0.0.0:8032
15/12/06 13:38:30 INFO Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
15/12/06 13:38:31 INFO Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
15/12/06 13:38:32 INFO Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 2 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
15/12/06 13:38:33 INFO Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 3 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
15/12/06 13:38:34 INFO Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 4 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
jps
hduser@master:/usr/local/spark$ jps
4930 ResourceManager
4781 SecondaryNameNode
5776 Jps
4608 DataNode
5058 NodeManager
4245 Worker
4045 Master
My /etc/host/
/etc/hosts
192.168.0.1 master
192.168.0.2 slave
The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
This error mainly comes when hostname is not configured correctly ...Please check if hostname is configured correctly and same as you have mentioned for Resourcemanager...