Ankush Bhatiya created HDFS-4630:
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Summary: Datanode is going OOM due to small files in hdfs
Key: HDFS-4630
URL: https://issues.apache.org/jira/browse/HDFS-4630
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode, namenode
Affects Versions: 2.0.0-alpha
Environment: Ubuntu, Java 1.6
Reporter: Ankush Bhatiya
Priority: Blocker
Hi,
We have very small files(size ranging 10KB-1MB) in our hdfs and no of files are
in tens of millions. Due to this namenode and datanode both going out of memory
very frequently. When we analyse the head dump of datanode most of the memory
was used by ReplicaMap.
Can we use EhCache or other to not to store all the data in memory?
Thanks
Ankush
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