[jira] [Commented] (HDFS-3874) Exception when client reports bad checksum to NN
[
https://issues.apache.org/jira/browse/HDFS-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564500#comment-13564500
]
Kihwal Lee commented on HDFS-3874:
--
This defect will be fixed as part of HDFS-3875.
> Exception when client reports bad checksum to NN
>
>
> Key: HDFS-3874
> URL: https://issues.apache.org/jira/browse/HDFS-3874
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client, namenode
>Affects Versions: 2.0.0-alpha, 0.23.5
>Reporter: Todd Lipcon
>Assignee: Kihwal Lee
>Priority: Critical
>
> We see the following exception in our logs on a cluster:
> {code}
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.hdfs.StateChange: *DIR*
> NameNode.reportBadBlocks
> 2012-08-27 16:34:30,400 ERROR
> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
> as:hdfs (auth:SIMPLE) cause:java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 46 on 8020, call
> org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.reportBadBlocks from
> 172.29.97.219:43805: error: java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.markBlockAsCorrupt(BlockManager.java:1001)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.findAndMarkBlockAsCorrupt(BlockManager.java:994)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.reportBadBlocks(FSNamesystem.java:4736)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.reportBadBlocks(NameNodeRpcServer.java:537)
> at
> org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.reportBadBlocks(DatanodeProtocolServerSideTranslatorPB.java:242)
> at
> org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:20032)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
> {code}
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[jira] [Commented] (HDFS-3874) Exception when client reports bad checksum to NN
[
https://issues.apache.org/jira/browse/HDFS-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13503801#comment-13503801
]
Kihwal Lee commented on HDFS-3874:
--
In branch-1, srcNode is created from the result of getRemoteSocketAddress(), so
it contained peer's address instead of null passed down from client. If we do
something equivalent, the last one in the pipeline will be able to report the
second to the last, but that is not enough to cover all the cases. The last one
needs to be included when determining up to which offset the data is sound. If
the last DN simply disappears like today, this won't happen.
Since HDFS-3875 talks about this specific issue, we will continue the
discussion there.
> Exception when client reports bad checksum to NN
>
>
> Key: HDFS-3874
> URL: https://issues.apache.org/jira/browse/HDFS-3874
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client, name-node
>Affects Versions: 2.0.0-alpha, 0.23.5
>Reporter: Todd Lipcon
>Assignee: Kihwal Lee
>Priority: Critical
>
> We see the following exception in our logs on a cluster:
> {code}
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.hdfs.StateChange: *DIR*
> NameNode.reportBadBlocks
> 2012-08-27 16:34:30,400 ERROR
> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
> as:hdfs (auth:SIMPLE) cause:java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 46 on 8020, call
> org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.reportBadBlocks from
> 172.29.97.219:43805: error: java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.markBlockAsCorrupt(BlockManager.java:1001)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.findAndMarkBlockAsCorrupt(BlockManager.java:994)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.reportBadBlocks(FSNamesystem.java:4736)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.reportBadBlocks(NameNodeRpcServer.java:537)
> at
> org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.reportBadBlocks(DatanodeProtocolServerSideTranslatorPB.java:242)
> at
> org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:20032)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
> {code}
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[jira] [Commented] (HDFS-3874) Exception when client reports bad checksum to NN
[
https://issues.apache.org/jira/browse/HDFS-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502469#comment-13502469
]
Todd Lipcon commented on HDFS-3874:
---
Hi Kihwal. The issue you're describing also sounds somewhat like HDFS-3875.
Have you seen that one? Would appreciate your thoughts there.
> Exception when client reports bad checksum to NN
>
>
> Key: HDFS-3874
> URL: https://issues.apache.org/jira/browse/HDFS-3874
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client, name-node
>Affects Versions: 2.0.0-alpha, 0.23.5
>Reporter: Todd Lipcon
>Assignee: Kihwal Lee
>Priority: Critical
>
> We see the following exception in our logs on a cluster:
> {code}
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.hdfs.StateChange: *DIR*
> NameNode.reportBadBlocks
> 2012-08-27 16:34:30,400 ERROR
> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
> as:hdfs (auth:SIMPLE) cause:java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 46 on 8020, call
> org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.reportBadBlocks from
> 172.29.97.219:43805: error: java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.markBlockAsCorrupt(BlockManager.java:1001)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.findAndMarkBlockAsCorrupt(BlockManager.java:994)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.reportBadBlocks(FSNamesystem.java:4736)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.reportBadBlocks(NameNodeRpcServer.java:537)
> at
> org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.reportBadBlocks(DatanodeProtocolServerSideTranslatorPB.java:242)
> at
> org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:20032)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
> {code}
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[jira] [Commented] (HDFS-3874) Exception when client reports bad checksum to NN
[
https://issues.apache.org/jira/browse/HDFS-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13501420#comment-13501420
]
Kihwal Lee commented on HDFS-3874:
--
I've seen this happening. This is worse than it looks. In 3-repl/2-min_repl
case, the last datanode in the pipeline does not report anything and the
pipeline is recreated with the remaining two nodes. The problem is the two
nodes may have already written the corrupt data to disk. The reconstructed
pipeline will be used and the block will complete. Once the block is done, NN
will schedule replication, which will fail the two sources one by one, causing
the block to be "missing".
Looking at the code, the source DatanodeId used in corruption reporting is
propagated from the client. But when DFSClient calls writeBlock(), it passes
null as srcNode, so no one in the pipline has valid srcNode. Maybe NN should
check whether the block is under construction and the reporter was the last one
in the pipeline. In this case, all copies of the blocks should be marked as
corrupt.
In addition to this, the last one in the pipeline should synchronously return
an appropriate failure, instead of simply going away.
> Exception when client reports bad checksum to NN
>
>
> Key: HDFS-3874
> URL: https://issues.apache.org/jira/browse/HDFS-3874
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client, name-node
>Affects Versions: 2.0.0-alpha
>Reporter: Todd Lipcon
>
> We see the following exception in our logs on a cluster:
> {code}
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.hdfs.StateChange: *DIR*
> NameNode.reportBadBlocks
> 2012-08-27 16:34:30,400 ERROR
> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
> as:hdfs (auth:SIMPLE) cause:java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 46 on 8020, call
> org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.reportBadBlocks from
> 172.29.97.219:43805: error: java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.markBlockAsCorrupt(BlockManager.java:1001)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.findAndMarkBlockAsCorrupt(BlockManager.java:994)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.reportBadBlocks(FSNamesystem.java:4736)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.reportBadBlocks(NameNodeRpcServer.java:537)
> at
> org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.reportBadBlocks(DatanodeProtocolServerSideTranslatorPB.java:242)
> at
> org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:20032)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
> {code}
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[jira] [Commented] (HDFS-3874) Exception when client reports bad checksum to NN
[
https://issues.apache.org/jira/browse/HDFS-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445350#comment-13445350
]
Todd Lipcon commented on HDFS-3874:
---
The bug seems to be that the datanode doesn't report the right remote DN when
it detects a checksum error when receiving a block. Here are the DN side logs:
{code}
2012-08-27 16:34:30,396 WARN org.apache.hadoop.hdfs.server.datanode.DataNode:
Checksum error in block
BP-1507505631-172.29.97.196-1337120439433:blk_8285012733733669474_140475196
from /172.29.97.219:52544
org.apache.hadoop.fs.ChecksumException: Checksum error:
DFSClient_NONMAPREDUCE_334070927_1 at 44032 exp: -983390667 got: 557443094
at
org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:335)
at
org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:266)
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.verifyChunks(BlockReceiver.java:377)
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:496)
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:635)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:506)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:98)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:66)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:219)
at java.lang.Thread.run(Thread.java:662)
2012-08-27 16:34:30,396 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
report corrupt block
BP-1507505631-172.29.97.196-1337120439433:blk_8285012733733669474_140475196
from datanode :0 to namenode
{code}
> Exception when client reports bad checksum to NN
>
>
> Key: HDFS-3874
> URL: https://issues.apache.org/jira/browse/HDFS-3874
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client, name-node
>Affects Versions: 2.0.0-alpha
>Reporter: Todd Lipcon
>
> We see the following exception in our logs on a cluster:
> {code}
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.hdfs.StateChange: *DIR*
> NameNode.reportBadBlocks
> 2012-08-27 16:34:30,400 ERROR
> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
> as:hdfs (auth:SIMPLE) cause:java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> 2012-08-27 16:34:30,400 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 46 on 8020, call
> org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.reportBadBlocks from
> 172.29.97.219:43805: error: java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> java.io.IOException: Cannot mark
> blk_8285012733733669474_140475196{blockUCState=UNDER_CONSTRUCTION,
> primaryNodeIndex=-1,
> replicas=[ReplicaUnderConstruction[172.29.97.219:50010|RBW]]}(same as stored)
> as corrupt because datanode :0 does not exist
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.markBlockAsCorrupt(BlockManager.java:1001)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.findAndMarkBlockAsCorrupt(BlockManager.java:994)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.reportBadBlocks(FSNamesystem.java:4736)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.reportBadBlocks(NameNodeRpcServer.java:537)
> at
> org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.reportBadBlocks(DatanodeProtocolServerSideTranslatorPB.java:242)
> at
> org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:20032)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
> {code}
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