amith created HDFS-3545:
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Summary: DFSClient leak due to malfunctioning of FileSystem Cache
Key: HDFS-3545
URL: https://issues.apache.org/jira/browse/HDFS-3545
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs client
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: amith
For every FileSystem.get new FileSystem object is getting created even though
the UGI object passed has same name. This is creating the lot of FileSystem
objects and cached in FileSystem cache instead of using the same cached object .
This is causing the Cache to grow in size causing OOME
This behaviour can be seen in Mapred and Hive components also since they use
FileSystem.get in the described fashion
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