Extend FSDataInputStream to allow fadvise
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Key: HDFS-2744
URL: https://issues.apache.org/jira/browse/HDFS-2744
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs client
Reporter: dhruba borthakur
Assignee: dhruba borthakur
Now that we have direct reads from local HDFS block files (HDFS-2246), it might
make sense to make FSDataInputStream support fadvise calls. I have an
application (HBase) that would like to tell the OS that it should not buffer
data in the OS buffer cache.
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