chencan created HDFS-11993:
------------------------------
Summary: Add log info when connect to datanode socket address
failed
Key: HDFS-11993
URL: https://issues.apache.org/jira/browse/HDFS-11993
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs-client
Reporter: chencan
In function BlockSeekTo, when connect faild to datanode socket address,log as
follow:
DFSClient.LOG.warn("Failed to connect to " + targetAddr + " for block"
+ ", add to deadNodes and continue. " + ex, ex);
add block info may be more explicit.
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