Shuyan Zhang created HDFS-16939:
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Summary: Fix the thread safety bug in LowRedundancyBlocks
Key: HDFS-16939
URL: https://issues.apache.org/jira/browse/HDFS-16939
Project: Hadoop HDFS
Issue Type: Bug
Components: namanode
Reporter: Shuyan Zhang
Assignee: Shuyan Zhang
The remove method in LowRedundancyBlocks is not protected by synchronized. This
method is private and is called by BlockManager. As a result, priorityQueues
has the risk of being accessed concurrently by multiple threads.
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