ExitCodeException exitCode=1: File "/etc/hadoop/conf/topology_script.py", line 63 print rack

[#1]

Hello ,

We have installed new cluster with HDP2.6.1 and ambari 2.5.1 and for every jobs we are getting following warning message though jobs are completing successfully. But why are we getting this error , can someone please help me.

18/01/16 09:52:48 WARN ScriptBasedMapping: Exception running /etc/hadoop/conf/topology_script.py

ExitCodeException exitCode=1: File "/etc/hadoop/conf/topology_script.py", line 63

print rack

^

SyntaxError: Missing parentheses in call to 'print'

at org.apache.hadoop.util.Shell.runCommand(Shell.java:944)

at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:1142)

at org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.runResolveCommand(ScriptBasedMapping.java:251)

at org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.resolve(ScriptBasedMapping.java:188)

at org.apache.hadoop.net.CachedDNSToSwitchMapping.resolve(CachedDNSToSwitchMapping.java:119)

at org.apache.hadoop.yarn.util.RackResolver.coreResolve(RackResolver.java:101)

at org.apache.hadoop.yarn.util.RackResolver.resolve(RackResolver.java:81)

at org.apache.spark.deploy.yarn.SparkRackResolver.resolve(SparkRackResolver.scala:37)

at org.apache.spark.deploy.yarn.YarnAllocator$$anonfun$handleAllocatedContainers$2.apply(YarnAllocator.scala:420)

at org.apache.spark.deploy.yarn.YarnAllocator$$anonfun$handleAllocatedContainers$2.apply(YarnAllocator.scala:419)

at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)

at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)

at org.apache.spark.deploy.yarn.YarnAllocator.handleAllocatedContainers(YarnAllocator.scala:419)

[#2]

@Saurabh Looks like you have python3 as default python. The print syntax has been changed in python3 and hence /etc/hadoop/conf/topology_script.py is complaining that.

[#3]

no Sandeep,

We have 2.7 only by default.

-bash-4.2$ python --version

Python 2.7.5