Arpit Agarwal created HDFS-5483:
-----------------------------------
Summary: Make reportDiff resilient to malformed block reports
Key: HDFS-5483
URL: https://issues.apache.org/jira/browse/HDFS-5483
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Affects Versions: Heterogeneous Storage (HDFS-2832)
Reporter: Arpit Agarwal
{{BlockManager#reportDiff}} can cause an assertion failure in
{{BlockInfo#moveBlockToHead}} if the block report shows the same block as
belonging to more than one storage.
The issue is that {{moveBlockToHead}} assumes it will find the
DatanodeStorageInfo for the given block.
Exception details:
{code}
java.lang.AssertionError: Index is out of bound
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo.setNext(BlockInfo.java:152)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo.moveBlockToHead(BlockInfo.java:351)
at
org.apache.hadoop.hdfs.server.blockmanagement.DatanodeStorageInfo.moveBlockToHead(DatanodeStorageInfo.java:243)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.reportDiff(BlockManager.java:1841)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processReport(BlockManager.java:1709)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processReport(BlockManager.java:1637)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.blockReport(NameNodeRpcServer.java:984)
at
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure.testVolumeFailure(TestDataNodeVolumeFailure.java:165)
{code}
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