Data lost at cluster startup time
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Key: HADOOP-4810
URL: https://issues.apache.org/jira/browse/HADOOP-4810
Project: Hadoop Core
Issue Type: Bug
Components: dfs
Affects Versions: 0.18.2
Reporter: Hairong Kuang
Assignee: Hairong Kuang
Priority: Blocker
Fix For: 0.18.3
hadoop dfs -cat file1 returns
dfs.DFSClient: Could not obtain block blk_XX_0 from any node:
java.io.IOException: No live nodes contain current block
Tracing the history of the block from NN log, we found
WARN org.apache.hadoop.fs.FSNamesystem: Inconsistent size for block
blk_-6160940519231606858_0 reported from A1.A2.A3.A4:50010 current size is
9303872 reported size is 262144
WARN org.apache.hadoop.fs.FSNamesystem: Deleting block
blk_-6160940519231606858_0 from A1.A2.A3.A4:50010
INFO org.apache.hadoop.dfs.StateChange: DIR* NameSystem.invalidateBlock:
blk_-6160940519231606858_0 on A1.A2.A3.A4:50010
WARN org.apache.hadoop.fs.FSNamesystem: Error in deleting bad block
blk_-6160940519231606858_0 org.apache.hadoop.dfs.SafeModeException: Cannot
invalidate block blk_-6160940519231606858_0. Name node is in safe mode.
WARN org.apache.hadoop.fs.FSNamesystem: Inconsistent size for block
blk_-6160940519231606858_0 reported from B1.B2.B3.B4:50010 current size is
9303872 reported size is 306688
WARN org.apache.hadoop.fs.FSNamesystem: Deleting block
blk_-6160940519231606858_0 from B1.B2.B3.B4:50010
INFO org.apache.hadoop.dfs.StateChange: DIR* NameSystem.invalidateBlock:
blk_-6160940519231606858_0 on B1.B2.B3.B4:50010
WARN org.apache.hadoop.fs.FSNamesystem: Error in deleting bad block
blk_-6160940519231606858_0 org.apache.hadoop.dfs.SafeModeException: Cannot
invalidate block blk_-6160940519231606858_0. Name node is in safe mode.
INFO org.apache.hadoop.dfs.StateChange: BLOCK*
NameSystem.chooseExcessReplicates: (C1.C2.C3.C4:50010,
blk_-6160940519231606858_0) is added to recentInvalidateSets
INFO org.apache.hadoop.dfs.StateChange: BLOCK*
NameSystem.chooseExcessReplicates: (D1.D2.D3.D4:50010,
blk_-6160940519231606858_0) is added to recentInvalidateSets
INFO org.apache.hadoop.dfs.StateChange: BLOCK* ask C1.C2.C3.C4:50010 to delete
blk_-6160940519231606858_0
INFO org.apache.hadoop.dfs.StateChange: BLOCK* ask D1.D2.D3.D4:50010 to delete
blk_-6160940519231606858_0
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