Vinayakumar B created HDFS-11738:
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Summary: hdged pread takes more time when block moved from initial
locations
Key: HDFS-11738
URL: https://issues.apache.org/jira/browse/HDFS-11738
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs-client
Reporter: Vinayakumar B
Assignee: Vinayakumar B
Scenario :
Same as HDFS-11708.
During Hedge read,
1. First two locations fails to read the data in hedged mode.
2. chooseData refetches locations and adds a future to read from DN3.
3. after adding future to DN3, main thread goes for refetching locations in
loop and stucks there till all 3 retries to fetch locations exhausted, which
consumes ~20 seconds with exponential retry time.
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