Hey guys ,
I was trying out spark 2.0 examples to run on mesos+hadoop cluster but it
keep failing with the following error message:-
I0803 19:46:53.848696 12494 fetcher.cpp:498] Fetcher Info:
> {"cache_directory":"\/tmp\/mesos\/fetch\/slaves\/587226cc-bece-422a-bb93-e3ef49075642-S1\/root","items":[{"action":"BYPASS_CACHE","uri":{"extract":true,"value":"hdfs:\/\/testcluster\/spark-examples_2.11-2.0.0.jar"}},{"action":"BYPASS_CACHE","uri":{"extract":true,"value":"hdfs:\/\/testcluster\/spark-2.0.0-bin-hdfs-2.6.0-cdh5.7.1.tgz"}}],"sandbox_directory":"\/vol\/mesos\/data\/slaves\/587226cc-bece-422a-bb93-e3ef49075642-S1\/frameworks\/587226cc-bece-422a-bb93-e3ef49075642-0017\/executors\/driver-20160803194649-0001\/runs\/b1e9a92e-f004-4cdc-b936-52b32593d39f","user":"root"}
I0803 19:46:53.850719 12494 fetcher.cpp:409] Fetching URI
> 'hdfs://testcluster/spark-examples_2.11-2.0.0.jar'
I0803 19:46:53.850731 12494 fetcher.cpp:250] Fetching directly into the
> sandbox directory
I0803 19:46:53.850746 12494 fetcher.cpp:187] Fetching URI
> 'hdfs://testcluster/spark-examples_2.11-2.0.0.jar'
> E0803 19:46:53.860776 12494 shell.hpp:106] Command
> '/usr/lib/hadoop/bin/hadoop version 2>&1' failed; this is the output:
> Error: JAVA_HOME is not set and could not be found.
> Failed to fetch 'hdfs://testcluster/spark-examples_2.11-2.0.0.jar': Failed
> to create HDFS client: Failed to execute '/usr/lib/hadoop/bin/hadoop
> version 2>&1'; the command was either not found or exited with a non-zero
> exit status: 1
> Failed to synchronize with agent (it's probably exited)
To start out, I tried out the hadoop command which was giving the error on
the agents and was able to replicate the error. So basically, running "sudo
-u root /usr/lib/hadoop/bin/hadoop version 2>&1" gave me the same JAVA_HOME
not set error. After I fixed that and restarted the agents, running the
spark example still gave me the same error.
I ran the same examples on mesos 0.28.2, and it ran fine.
Any help regarding this would be appreciated.
*Additional Info :-*
mesos version - 1.0.0
hadoop version - 2.6.0-cdh5.7.2
spark version - 2.0.0
Command used to run spark example - ./bin/spark-submit --class
org.apache.spark.examples.SparkPi --master mesos://<master>:7077
--deploy-mode cluster --executor-memory 2G --total-executor-cores 4
hdfs://testcluster/spark-examples_2.11-2.0.0.jar 100
