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RE: why my test result on dfs short circuit read is slower? - MapReduce - [mail # user]
...It seems to me that, with short circuit read enabled, the BlockReaderLocal read data in 512/4096 bytes unit(checksum check enabled/skiped)  While when It go through datanode, the BlockS...
   Author: Liu, Raymond, 2013-02-16, 07:54
RE: why my test result on dfs short circuit read is slower? - MapReduce - [mail # user]
...Hi Arpit Gupta  Yes,  this way also confirms that short circuit read is enabled on my cluster.  13/02/16 14:07:34 DEBUG hdfs.DFSClient: Short circuit read is true  13/02/...
   Author: Liu, Raymond, 2013-02-16, 06:22
RE: why my test result on dfs short circuit read is slower? - MapReduce - [mail # user]
...Hi Harsh  Yes, I did set both of these. While not in hbase-site.xml but hdfs-site.xml.  And I have double confirmed that local reads are performed, since there are no Error in data...
   Author: Liu, Raymond, 2013-02-16, 05:53
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