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https://issues.apache.org/jira/browse/HDFS-10763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15427076#comment-15427076
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Hadoop QA commented on HDFS-10763:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
14s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
4s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
2s{color} | {color:green} branch-2.7 passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
2s{color} | {color:green} branch-2.7 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
28s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
59s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
15s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
57s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
59s{color} | {color:green} branch-2.7 passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
44s{color} | {color:green} branch-2.7 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
58s{color} | {color:green} the patch passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
1s{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
1s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 26s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch
generated 1 new + 392 unchanged - 1 fixed = 393 total (was 393) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
55s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
12s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
1s{color} | {color:red} The patch has 1997 line(s) that end in whitespace. Use
git apply --whitespace=fix <<patch_file>>. Refer
https://git-scm.com/docs/git-apply {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
47s{color} | {color:red} The patch 78 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
12s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
57s{color} | {color:green} the patch passed with JDK v1.8.0_101 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
42s{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 42m 39s{color}
| {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_101. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m
18s{color} | {color:red} The patch generated 3 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}120m 37s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| JDK v1.8.0_101 Failed junit tests |
hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots |
| JDK v1.7.0_101 Failed junit tests | hadoop.hdfs.server.balancer.TestBalancer |
| | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:c420dfe |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12824410/HDFS-10763.branch-2.7.v2.patch
|
| JIRA Issue | HDFS-10763 |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux da7d38af32d2 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 |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | branch-2.7 / 6593851 |
| Default Java | 1.7.0_101 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_101
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_101 |
| findbugs | v3.0.0 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
|
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/artifact/patchprocess/whitespace-eol.txt
|
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/artifact/patchprocess/whitespace-tabs.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_101.txt
|
| JDK v1.7.0_101 Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/testReport/ |
| asflicense |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/artifact/patchprocess/patch-asflicense-problems.txt
|
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/16474/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Open files can leak permanently due to inconsistent lease update
> ----------------------------------------------------------------
>
> Key: HDFS-10763
> URL: https://issues.apache.org/jira/browse/HDFS-10763
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.3, 2.6.4
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Priority: Critical
> Fix For: 2.7.4, 3.0.0-alpha2
>
> Attachments: HDFS-10763.br27.patch,
> HDFS-10763.branch-2.7.supplement.patch, HDFS-10763.branch-2.7.v2.patch,
> HDFS-10763.patch
>
>
> This can heppen during {{commitBlockSynchronization()}} or a client gives up
> on closing a file after retries.
> From {{finalizeINodeFileUnderConstruction()}}, the lease is removed first and
> then the inode is turned into the closed state. But if any block is not in
> COMPLETE state,
> {{INodeFile#assertAllBlocksComplete()}} will throw an exception. This will
> cause the lease is removed from the lease manager, but not from the inode.
> Since the lease manager does not have a lease for the file, no lease recovery
> will happen for this file. Moreover, this broken state is persisted and
> reconstructed through saving and loading of fsimage. Since no replication is
> scheduled for the blocks for the file, this can cause a data loss and also
> block decommissioning of datanode.
> The lease cannot be manually recovered either. It fails with
> {noformat}
> ...AlreadyBeingCreatedException): Failed to RECOVER_LEASE /xyz/xyz for user1
> on
> 0.0.0.1 because the file is under construction but no leases found.
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:2950)
> ...
> {noformat}
> When a client retries {{close()}}, the same inconsistent state is created,
> but it can work in the next time since {{checkLease()}} only looks at the
> inode, not the lease manager in this case. The close behavior is different if
> HDFS-8999 is activated by setting
> {{dfs.namenode.file.close.num-committed-allowed}} to 1 (unlikely) or 2
> (never).
> In principle, the under-construction feature of an inode and the lease in the
> lease manager should never go out of sync. The fix involves two parts.
> 1) Prevent inconsistent lease updates. We can achieve this by calling
> {{removeLease()}} after checking the block state.
> 2) Avoid reconstructing inconsistent lease states from a fsimage. 1) alone
> does not correct the existing inconsistencies surviving through fsimages.
> This can be done during fsimage loading time by making sure a corresponding
> lease exists for each inode that are with the underconstruction feature.
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