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https://issues.apache.org/jira/browse/HDFS-7270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306141#comment-14306141
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Hadoop QA commented on HDFS-7270:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12696311/HDFS-7270.003.patch
against trunk revision 064e077.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.TestSetrepIncreasing
org.apache.hadoop.hdfs.TestModTime
org.apache.hadoop.hdfs.TestDFSClientRetries
org.apache.hadoop.hdfs.TestSetrepDecreasing
org.apache.hadoop.hdfs.server.datanode.TestDataNodeHotSwapVolumes
org.apache.hadoop.hdfs.server.namenode.TestDeleteRace
org.apache.hadoop.hdfs.TestPread
org.apache.hadoop.hdfs.server.namenode.TestFSDirectory
org.apache.hadoop.hdfs.server.namenode.TestFileTruncate
org.apache.hadoop.hdfs.TestReadWhileWriting
org.apache.hadoop.hdfs.server.blockmanagement.TestPendingInvalidateBlock
org.apache.hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFS
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistFiles
org.apache.hadoop.hdfs.server.namenode.TestHDFSConcat
org.apache.hadoop.hdfs.protocol.datatransfer.sasl.TestSaslDataTransfer
org.apache.hadoop.hdfs.web.TestWebHdfsWithMultipleNameNodes
org.apache.hadoop.hdfs.TestClientProtocolForPipelineRecovery
org.apache.hadoop.hdfs.server.mover.TestStorageMover
org.apache.hadoop.hdfs.server.datanode.TestBlockReplacement
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestInterDatanodeProtocol
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotBlocksMap
org.apache.hadoop.hdfs.TestFileAppend
org.apache.hadoop.hdfs.TestEncryptedTransfer
org.apache.hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks
org.apache.hadoop.hdfs.server.datanode.TestHSync
org.apache.hadoop.hdfs.web.TestWebHdfsFileSystemContract
org.apache.hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics
org.apache.hadoop.hdfs.TestFileAppendRestart
org.apache.hadoop.hdfs.server.namenode.ha.TestStandbyBlockManagement
org.apache.hadoop.tracing.TestTracing
org.apache.hadoop.hdfs.server.namenode.ha.TestRetryCacheWithHA
org.apache.hadoop.hdfs.web.TestWebHDFS
org.apache.hadoop.hdfs.server.namenode.TestParallelImageWrite
org.apache.hadoop.hdfs.TestReplication
org.apache.hadoop.hdfs.server.datanode.TestBlockHasMultipleReplicasOnSameDN
org.apache.hadoop.hdfs.TestFileAppend4
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotDiffReport
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestDatanodeRestart
org.apache.hadoop.hdfs.TestWriteRead
org.apache.hadoop.hdfs.server.namenode.web.resources.TestWebHdfsDataLocality
org.apache.hadoop.hdfs.server.namenode.TestDecommissioningStatus
org.apache.hadoop.hdfs.server.blockmanagement.TestRBWBlockInvalidation
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureToleration
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotMetrics
org.apache.hadoop.hdfs.TestDecommission
org.apache.hadoop.hdfs.TestCrcCorruption
org.apache.hadoop.hdfs.server.namenode.TestINodeFile
org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
org.apache.hadoop.hdfs.server.balancer.TestBalancerWithEncryptedTransfer
org.apache.hadoop.hdfs.TestDFSRemove
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotReplication
org.apache.hadoop.hdfs.server.mover.TestMover
org.apache.hadoop.hdfs.server.blockmanagement.TestComputeInvalidateWork
org.apache.hadoop.hdfs.server.namenode.TestCacheDirectives
org.apache.hadoop.hdfs.TestFileAppend2
org.apache.hadoop.hdfs.TestRestartDFS
org.apache.hadoop.hdfs.TestFileAppend3
org.apache.hadoop.hdfs.server.namenode.snapshot.TestINodeFileUnderConstructionWithSnapshot
org.apache.hadoop.hdfs.TestQuota
org.apache.hadoop.hdfs.TestInjectionForSimulatedStorage
org.apache.hadoop.hdfs.server.balancer.TestBalancerWithHANameNodes
org.apache.hadoop.hdfs.web.TestFSMainOperationsWebHdfs
org.apache.hadoop.hdfs.server.namenode.TestSnapshotPathINodes
org.apache.hadoop.hdfs.server.namenode.ha.TestStandbyIsHot
org.apache.hadoop.security.TestPermission
org.apache.hadoop.hdfs.server.balancer.TestBalancerWithNodeGroup
org.apache.hadoop.hdfs.TestGetBlocks
org.apache.hadoop.hdfs.server.blockmanagement.TestOverReplicatedBlocks
org.apache.hadoop.hdfs.server.namenode.TestFsck
org.apache.hadoop.hdfs.server.namenode.TestAuditLogs
org.apache.hadoop.hdfs.server.namenode.snapshot.TestNestedSnapshots
org.apache.hadoop.hdfs.TestMultiThreadedHflush
org.apache.hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks
org.apache.hadoop.security.TestPermissionSymlinks
org.apache.hadoop.hdfs.TestClientReportBadBlock
org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
org.apache.hadoop.hdfs.TestGetFileChecksum
org.apache.hadoop.hdfs.server.namenode.TestNameEditsConfigs
org.apache.hadoop.hdfs.TestBlockStoragePolicy
org.apache.hadoop.hdfs.TestDFSClientExcludedNodes
org.apache.hadoop.hdfs.server.datanode.TestNNHandlesBlockReportPerStorage
org.apache.hadoop.fs.permission.TestStickyBit
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotDeletion
org.apache.hadoop.hdfs.TestFileCreation
org.apache.hadoop.hdfs.server.namenode.ha.TestHASafeMode
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshot
org.apache.hadoop.hdfs.server.namenode.TestDiskspaceQuotaUpdate
org.apache.hadoop.hdfs.TestDatanodeDeath
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting
org.apache.hadoop.hdfs.server.datanode.TestNNHandlesCombinedBlockReport
org.apache.hadoop.hdfs.server.namenode.TestFSImageWithSnapshot
org.apache.hadoop.hdfs.TestPipelines
org.apache.hadoop.fs.loadGenerator.TestLoadGenerator
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotRename
org.apache.hadoop.hdfs.server.namenode.TestProcessCorruptBlocks
org.apache.hadoop.hdfs.TestLeaseRecovery2
org.apache.hadoop.hdfs.TestFileCorruption
org.apache.hadoop.hdfs.server.namenode.TestNamenodeCapacityReport
org.apache.hadoop.hdfs.server.blockmanagement.TestPendingReplication
org.apache.hadoop.hdfs.server.balancer.TestBalancerWithSaslDataTransfer
org.apache.hadoop.hdfs.server.namenode.ha.TestHAAppend
org.apache.hadoop.hdfs.server.namenode.TestBackupNode
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure
org.apache.hadoop.hdfs.TestReplaceDatanodeOnFailure
org.apache.hadoop.hdfs.server.namenode.TestFavoredNodesEndToEnd
org.apache.hadoop.hdfs.server.namenode.TestAddBlock
org.apache.hadoop.hdfs.server.namenode.ha.TestDNFencingWithReplication
org.apache.hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshottableDirListing
org.apache.hadoop.hdfs.TestLease
org.apache.hadoop.hdfs.server.namenode.snapshot.TestSetQuotaWithSnapshot
org.apache.hadoop.hdfs.server.namenode.TestCheckpoint
org.apache.hadoop.hdfs.server.namenode.ha.TestDNFencing
org.apache.hadoop.hdfs.TestLeaseRecovery
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/9431//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9431//console
This message is automatically generated.
> Add congestion signaling capability to DataNode write protocol
> --------------------------------------------------------------
>
> Key: HDFS-7270
> URL: https://issues.apache.org/jira/browse/HDFS-7270
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Attachments: HDFS-7270.000.patch, HDFS-7270.001.patch,
> HDFS-7270.002.patch, HDFS-7270.003.patch
>
>
> When a client writes to HDFS faster than the disk bandwidth of the DNs, it
> saturates the disk bandwidth and put the DNs unresponsive. The client only
> backs off by aborting / recovering the pipeline, which leads to failed writes
> and unnecessary pipeline recovery.
> This jira proposes to add explicit congestion control mechanisms in the
> writing pipeline.
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