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 >new period : work left in prev period : 0.00% >2012-10-11 13:46:09,286 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:14,384 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:19,490 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:24,530 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:29,562 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:34,593 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:39,625 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:44,656 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:49,688 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:54,728 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:46:59,759 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:04,849 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:09,889 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:14,929 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:20,019 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:25,059 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:30,099 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:35,197 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:40,295 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:45,296 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:50,342 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:47:55,381 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:00,496 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:05,594 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:10,701 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:15,749 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:20,789 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:25,837 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:30,877 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:35,917 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% >2012-10-11 13:48:40,949 INFO >org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Starting a >new period : work left in prev period : 0.00% > >Thanks! > >beatls
