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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8719) Erasure Coding: client generates too many small packets when writing parity data
Date Thu, 09 Jul 2015 07:09:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620019#comment-14620019
] 

Hadoop QA commented on HDFS-8719:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch |  16m 13s | Findbugs (version ) appears to be broken on
HDFS-7285. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear to include any
new or modified tests.  Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. |
| {color:green}+1{color} | javac |   7m 45s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 56s | There were no new javadoc warning messages.
|
| {color:red}-1{color} | release audit |   0m 14s | The applied patch generated 1 release
audit warnings. |
| {color:green}+1{color} | checkstyle |   0m 39s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 37s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with eclipse:eclipse.
|
| {color:red}-1{color} | findbugs |   3m 33s | The patch appears to introduce 4 new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m 20s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 139m  8s | Tests failed in hadoop-hdfs. |
| | | 183m  3s | |
\\
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs |
| Failed unit tests | hadoop.fs.TestUrlStreamHandler |
|   | hadoop.hdfs.server.namenode.TestFileLimit |
|   | hadoop.TestRefreshCallQueue |
|   | hadoop.hdfs.protocolPB.TestPBHelper |
|   | hadoop.cli.TestCryptoAdminCLI |
|   | hadoop.fs.viewfs.TestViewFsWithAcls |
|   | hadoop.hdfs.server.namenode.TestFSEditLogLoader |
|   | hadoop.fs.contract.hdfs.TestHDFSContractDelete |
|   | hadoop.fs.TestFcHdfsSetUMask |
|   | hadoop.fs.TestUnbuffer |
|   | hadoop.fs.contract.hdfs.TestHDFSContractOpen |
|   | hadoop.hdfs.server.namenode.TestFileTruncate |
|   | hadoop.fs.contract.hdfs.TestHDFSContractMkdir |
|   | hadoop.fs.contract.hdfs.TestHDFSContractAppend |
|   | hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFS |
|   | hadoop.hdfs.server.namenode.TestHDFSConcat |
|   | hadoop.fs.TestSymlinkHdfsFileSystem |
|   | hadoop.fs.viewfs.TestViewFsDefaultValue |
|   | hadoop.fs.TestSymlinkHdfsFileContext |
|   | hadoop.hdfs.TestClientProtocolForPipelineRecovery |
|   | hadoop.hdfs.TestFSInputChecker |
|   | hadoop.hdfs.server.mover.TestStorageMover |
|   | hadoop.cli.TestAclCLI |
|   | hadoop.hdfs.TestEncryptedTransfer |
|   | hadoop.fs.contract.hdfs.TestHDFSContractSeek |
|   | hadoop.hdfs.server.namenode.TestFileContextXAttr |
|   | hadoop.hdfs.server.namenode.TestAclConfigFlag |
|   | hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics |
|   | hadoop.tracing.TestTracing |
|   | hadoop.fs.viewfs.TestViewFsWithXAttrs |
|   | hadoop.cli.TestErasureCodingCLI |
|   | hadoop.hdfs.TestPersistBlocks |
|   | hadoop.hdfs.TestDatanodeReport |
|   | hadoop.tools.TestJMXGet |
|   | hadoop.fs.contract.hdfs.TestHDFSContractCreate |
|   | hadoop.hdfs.server.namenode.TestCreateEditsLog |
|   | hadoop.hdfs.TestWriteRead |
|   | hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes |
|   | hadoop.fs.TestEnhancedByteBufferAccess |
|   | hadoop.fs.TestFcHdfsPermission |
|   | hadoop.security.TestRefreshUserMappings |
|   | hadoop.fs.viewfs.TestViewFsHdfs |
|   | hadoop.fs.TestResolveHdfsSymlink |
|   | hadoop.hdfs.server.namenode.metrics.TestNNMetricFilesInGetListingOps |
|   | hadoop.tracing.TestTracingShortCircuitLocalRead |
|   | hadoop.hdfs.server.namenode.TestDecommissioningStatus |
|   | hadoop.tracing.TestTraceAdmin |
|   | hadoop.hdfs.server.namenode.TestNNThroughputBenchmark |
|   | hadoop.hdfs.TestDatanodeStartupFixesLegacyStorageIDs |
|   | hadoop.hdfs.server.balancer.TestBalancerWithEncryptedTransfer |
|   | hadoop.hdfs.server.balancer.TestBalancer |
|   | hadoop.fs.TestFcHdfsCreateMkdir |
|   | hadoop.hdfs.server.mover.TestMover |
|   | hadoop.hdfs.server.namenode.TestDeadDatanode |
|   | hadoop.hdfs.server.namenode.TestCommitBlockSynchronization |
|   | hadoop.fs.viewfs.TestViewFileSystemWithXAttrs |
|   | hadoop.fs.viewfs.TestViewFileSystemWithAcls |
|   | hadoop.hdfs.server.balancer.TestBalancerWithHANameNodes |
|   | hadoop.security.TestPermission |
|   | hadoop.hdfs.server.balancer.TestBalancerWithNodeGroup |
|   | hadoop.fs.contract.hdfs.TestHDFSContractConcat |
|   | hadoop.hdfs.server.namenode.TestFSPermissionChecker |
|   | hadoop.hdfs.server.namenode.TestSecondaryNameNodeUpgrade |
|   | hadoop.security.TestPermissionSymlinks |
|   | hadoop.hdfs.server.namenode.TestValidateConfigurationSettings |
|   | hadoop.net.TestNetworkTopology |
|   | hadoop.fs.contract.hdfs.TestHDFSContractRootDirectory |
|   | hadoop.cli.TestXAttrCLI |
|   | hadoop.hdfs.TestEncryptionZonesWithHA |
|   | hadoop.fs.contract.hdfs.TestHDFSContractRename |
|   | hadoop.hdfs.server.namenode.TestSecurityTokenEditLog |
|   | hadoop.fs.permission.TestStickyBit |
|   | hadoop.fs.viewfs.TestViewFileSystemAtHdfsRoot |
|   | hadoop.hdfs.server.namenode.TestTransferFsImage |
|   | hadoop.hdfs.server.namenode.TestFSImageWithSnapshot |
|   | hadoop.hdfs.TestPipelines |
|   | hadoop.fs.loadGenerator.TestLoadGenerator |
|   | hadoop.hdfs.server.namenode.TestStripedINodeFile |
|   | hadoop.cli.TestCacheAdminCLI |
|   | hadoop.fs.TestHDFSFileContextMainOperations |
|   | hadoop.fs.TestGlobPaths |
|   | hadoop.fs.viewfs.TestViewFsFileStatusHdfs |
|   | hadoop.hdfs.server.namenode.TestCheckPointForSecurityTokens |
|   | hadoop.fs.viewfs.TestViewFsAtHdfsRoot |
|   | hadoop.TestGenericRefresh |
|   | hadoop.hdfs.server.balancer.TestBalancerWithSaslDataTransfer |
|   | hadoop.fs.shell.TestHdfsTextCommand |
|   | hadoop.cli.TestHDFSCLI |
|   | hadoop.hdfs.TestReplaceDatanodeOnFailure |
|   | hadoop.fs.TestSymlinkHdfsDisable |
|   | hadoop.hdfs.server.namenode.TestFSImage |
|   | hadoop.fs.viewfs.TestViewFileSystemHdfs |
|   | hadoop.hdfs.TestDFSInotifyEventInputStream |
|   | hadoop.hdfs.server.namenode.TestCheckpoint |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12744390/HDFS-8719-HDFS-7285-003.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | HDFS-7285 / 2c494a8 |
| Release Audit | https://builds.apache.org/job/PreCommit-HDFS-Build/11640/artifact/patchprocess/patchReleaseAuditProblems.txt
|
| Findbugs warnings | https://builds.apache.org/job/PreCommit-HDFS-Build/11640/artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
|
| hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/11640/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/11640/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf904.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep
3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/11640/console |


This message was automatically generated.

> Erasure Coding: client generates too many small packets when writing parity data
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-8719
>                 URL: https://issues.apache.org/jira/browse/HDFS-8719
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Li Bo
>            Assignee: Li Bo
>         Attachments: HDFS-8719-001.patch, HDFS-8719-HDFS-7285-001.patch, HDFS-8719-HDFS-7285-002.patch,
HDFS-8719-HDFS-7285-003.patch
>
>
> Typically a packet is about 64K, but when writing parity data, many small packets with
size 512 bytes are generated. This may slow the write speed and increase the network IO.



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