Ahmed Hussein created HDFS-15119:
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Summary: Allow expiration of cached locations in DFSInputStream
Key: HDFS-15119
URL: https://issues.apache.org/jira/browse/HDFS-15119
Project: Hadoop HDFS
Issue Type: Improvement
Components: dfsclient
Reporter: Ahmed Hussein
Assignee: Ahmed Hussein
Staleness and other transient conditions can affect reads for a long time since
the block locations may not be re-fetched. It makes sense to make cached
locations to expire.
For example, we may not take advantage of local-reads since the nodes are
blacklisted and have not been updated.
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