Kidd5368 created HDFS-16776:
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Summary: Erasure Coding: The length of targets should be checked
when DN gets a reconstruction task.
Key: HDFS-16776
URL: https://issues.apache.org/jira/browse/HDFS-16776
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Kidd5368
The length of targets should be checked when DN gets a EC reconstruction
task.For some reason (HDFS-14768, HDFS-16739) , the length of targets will be
larger than additionalReplRequired which causes some elements in targets get
the default value 0. It may trigger the bug which leads to the data corrupttion
just like HDFS-14768.
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