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Showing posts with label FAILED FSError: java.io.IOException: No Space left on device. Show all posts
Showing posts with label FAILED FSError: java.io.IOException: No Space left on device. Show all posts

Monday, January 20, 2014

Hadoop over utilization of Hdfs

Do you face problem of over uses of HDFS for datanode, frequently it becomes 100% and hence result in a imbalance cluster, thinking of how to solve this problem, for this what we can do is put a parameter called "dfs.datanode.du.reserved" so this will reserve the non HDFS uses disk space and hence leaving the some space remaining for non HDFS uses and solving disk overuses of HDFS .

Sunday, January 20, 2013

FAILED FSError: java.io.IOException: No Space left on device

 

FAILED FSError: java.io.IOException: No Space left on device

org.apache.hadoop.util.DiskChecker$DiskErrorException : Could not find any valid local directory for taskTracker/jobcache

When you run hive queries and you queries fails, just go the the job tracker of Hadoop : mostly on 50030 port on your Hadoop nodes, and check the failed or killed jobs, you may find these errors.

The reason behind will be following:

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