[Hive COSMOS CLI/PHP Thrift] Error while launching "hive" command in shell

[parchitelli]

Hi, when I try to run the "hive" command from the shell I get the following error: 'Exception in thread "main" java.io.IOException: Mkdirs failed to create /tmp/hadoop-USERNAME/hadoop-unjar1448268252380539144 at org.apache.hadoop.util.RunJar.ensureDirectory(RunJar.java:100) at org.apache.hadoop.util.RunJar.main(RunJar.java:162)'.

But when I try a select query in PHP script, we received the following error:

'FAILED: Hive Internal Error: java.lang.RuntimeException(org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp/hive-root/hive_2015-06-29_18-03-29_493_5508174623301334280. Name node is in safe mode. Resources are low on NN. Safe mode must be turned off manually. at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal(FSNamesystem.java:2140) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:2114) at org.apache.hadoop.hdfs.server.namenode.NameNode.mkdirs(NameNode.java:892) at sun.reflect.GeneratedMethodAccessor2286.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:557)'

Waiting for your feedback, thank you in advance.

[sbrahma]

Hi, i have posted your issue in stackoverflow https://stackoverflow.com/questions/31243009/error-while-launching-hive-command-in-shell.

Regards

[sbrahma]

Hello @parchitelli,

Do you have enough disk space in the node that you are operating on? This might be the reason that the cluster is automatically going to safe mode. Please try adding or freeing some disk space.

Thanks

[parchitelli]

Hello @sbrahma, the "df -h" commands shows:

tmpfs 4,9G 0 4,9G 0% /dev/shm

The partition is free. The problem, unexpecedly, is gone even if I have not erased any data. There are another problem on hive instance. When I try to launch a select query on some fields the hive cli map reduced returns this error:

Ended Job = job_201409031055_6624 with errors Error during job, obtaining debugging information... Examining task ID: task_201409031055_6624_m_000002 (and more) from job job_201409031055_6624

Task with the most failures(4):

Task ID: task_201409031055_6624_m_000000

URL:

http://cosmosmaster-gi:50030/taskdetails.jsp?jobid=job_201409031055_6624&tipid=task_201409031055_6624_m_000000

FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask MapReduce Jobs Launched: Job 0: Map: 1 HDFS Read: 0 HDFS Write: 0 FAIL Total MapReduce CPU Time Spent: 0 msec

Thanks.

[sbrahma]

Thanks @parchitelli , we will get back to you with more updates.

[sbrahma]

Hello @parchitelli , Its just to inquire about the present status of this issue from your side . We are planning to close these issues if they are being resolved somehow.

Thanks

[sbrahma]

as we didnt get any possible outcome and no response to this issue we are closing this issue.