Lin Yiqun created HDFS-9727:
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Summary: Improve the exception's log output in DataXceiver
Key: HDFS-9727
URL: https://issues.apache.org/jira/browse/HDFS-9727
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 2.7.1
Reporter: Lin Yiqun
Assignee: Lin Yiqun
Priority: Minor
There are some not appropriate logLevel output in many palaces of
{{DataXceiver}}. When some exceptions happened, the output logLevel often the
info level not warn. Like these:
{code}
try {
blockSender = new BlockSender(block, blockOffset, length,
true, false, sendChecksum, datanode, clientTraceFmt,
cachingStrategy);
} catch(IOException e) {
String msg = "opReadBlock " + block + " received exception " + e;
LOG.info(msg);
sendResponse(ERROR, msg);
throw e;
}
{code}
And this case is not only one, it looks frequent in DataXceiver methods.
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