Unable to pull requests from kafka brokers : Failed to obtain metadata!

[rohit deshpande]

Hi,
I run my camus job every 10 minutes in oozie scheduler and randomly my job succeeds some times and fails some times.
When it fails, I can in the error log:

Caused by: java.io.IOException: Unable to pull requests from Kafka brokers.
	at com.linkedin.camus.etl.kafka.mapred.EtlInputFormat.getSplits(EtlInputFormat.java:294)
	at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:493)
	at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:510)
	at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:394)
	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285)
	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1637)
	at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282)
	at com.linkedin.camus.etl.kafka.CamusJob.run(CamusJob.java:335)
	at com.linkedin.camus.etl.kafka.CamusJob.run(CamusJob.java:563)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
	at com.linkedin.camus.etl.kafka.CamusJob.main(CamusJob.java:518)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:55)
	... 20 more
Caused by: java.lang.RuntimeException: Failed to obtain metadata!
	at com.linkedin.camus.etl.kafka.mapred.EtlInputFormat.getKafkaMetadata(EtlInputFormat.java:132)
	at com.linkedin.camus.etl.kafka.mapred.EtlInputFormat.getSplits(EtlInputFormat.java:238)
	... 39 more
Caused by: java.net.ConnectException: Connection timed out

Has anybody faced this issue before? What can be the reason it succeeds some times and fails randomly?

[AarthiPrasad rathinasami]

I am facing the same problem.  Have you fixed it?

[Nir Hedvat]

Hi, I'm currently working on the latest Camus version and experiencing the same problem, any ideas?

10x