[HDFS-3194] DataNode block scanner is running too frequently

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Andy Isaacson
• Reporter: suja s
• Created: 04/Apr/12 09:33
• Updated: 11/Oct/12 17:46
• Resolved: 21/Aug/12 20:10

Description

Block scanning interval by default should be taken as 21 days(3 weeks) and each block scanning should happen once in 21 days.
Here the block is being scanned continuosly.

2012-04-03 10:44:47,056 INFO org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification succeeded for BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473_1003
2012-04-03 10:45:02,064 INFO org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification succeeded for BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473_1003
2012-04-03 10:45:17,071 INFO org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification succeeded for BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473_1003
2012-04-03 10:45:32,079 INFO org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification succeeded for BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473

Issue Links

• is duplicated by: HDFS-3410 BlockPoolSliceScanner is too chatty
• is related to: HDFS-1655 Federation: DatablockScanner should scan blocks for all the block pools.
• is related to: HDFS-3803 BlockPoolSliceScanner new work period notice is very chatty at INFO level
• relates to: HDFS-3828 Block Scanner rescans blocks too frequently