Created question in FIWARE Q/A platform on 29-06-2015 at 12:06
Please, ANSWER this question AT http://stackoverflow.com/questions/31112863/hive-on-cosmos-global-instance-return-error-code-12-in-java-client

Question:
Hive on Cosmos global instance return error code 12 in Java client

Description:
I recently developed a Java client which allow me to query my Hive tables from a simple url .

Unfortunately , since last Thursday the queries seems to have some issues . From time to time , my query which worked before , doesn't return me anything .

So I decided to take a look at my logs, and everytime I do a query this occur :

java.sql.SQLException: Query returned non-zero code: 12, cause: FAILED: Hive Internal Error: java.lang.RuntimeExcep
tion(org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create
directory /tmp/hive-root/hive_2015-06-29_09-19-53_268_7855618362212093455. Name node is in safe mode.
Resources are low on NN. Safe mode must be turned off manually.

I think the issue come from the node itself , because I didn't do any changes on my code or in my hive tables . What do you think the problem come from ? And what can I do to resolve it ?

Thank you for your reading my question .