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Re: error messages from datanode
They are not errors, but I agree it's annoying.
See HDFS-3194 and HDFS-3828 for details.

Kihwal

On 10/11/12 12:49 AM, "Xiang Hua" <[EMAIL PROTECTED]> wrote:

>Hi,
>   below is error messages from datanode, we use CDH4 with redhat6.1, what
>the problem?
>
>[root@hadoop2 hadoop-hdfs]# tail -f hadoop-hdfs-datanode-hadoop2.log
>2012-10-11 13:44:02,572 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:07,678 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:12,693 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:17,742 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:22,757 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:27,888 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:32,903 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:37,984 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:43,099 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:48,172 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:53,187 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:44:58,302 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:03,303 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:08,399 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:13,514 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:18,620 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:23,685 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:28,725 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:33,773 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:38,871 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:43,920 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:48,976 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:54,091 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:45:59,139 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a
>new period : work left in prev period : 0.00%
>2012-10-11 13:46:04,262 INFO
>org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a