Shen Yinjie created HDFS-14240:
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Summary: blockReport test in NNThroughputBenchmark throws
ArrayIndexOutOfBoundsException
Key: HDFS-14240
URL: https://issues.apache.org/jira/browse/HDFS-14240
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Shen Yinjie
When I run a blockReport test with NNThroughputBenchmark,
BlockReportStats.addBlocks() throws ArrayIndexOutOfBoundsException.
digging the code:
{code}for(DatanodeInfo dnInfo : loc.getLocations()) {
int dnIdx = dnInfo.getXferPort() - 1;
datanodes[dnIdx].addBlock(loc.getBlock().getLocalBlock());\{code}
problem is here:array datanodes's length is determined by args as "-datanodes"
or "-threads" ，but dnIdx = dnInfo.getXferPort() is a random port.
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