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Posted to hdfs-dev@hadoop.apache.org by "dragon (JIRA)" <ji...@apache.org> on 2016/03/15 09:17:35 UTC
[jira] [Created] (HDFS-10130) CLONE - Erasure Coding: handle
missing internal block locations in DFSStripedInputStream
dragon created HDFS-10130:
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Summary: CLONE - Erasure Coding: handle missing internal block locations in DFSStripedInputStream
Key: HDFS-10130
URL: https://issues.apache.org/jira/browse/HDFS-10130
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: dragon
Assignee: Jing Zhao
Fix For: HDFS-7285
Currently DFSStripedInputStream assumes we always have complete internal block location information, i.e., we can always get all the DataNodes for a striped block group. In a lot of scenarios the client cannot get complete block location info, e.g., some internal blocks are missing and the NameNode has not finished the recovery yet. We should add functionality to handle missing block locations in DFSStripedInputStream.
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