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https://issues.apache.org/jira/browse/HDFS-10220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15257846#comment-15257846
 ] 

Hadoop QA commented on HDFS-10220:
----------------------------------

| (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 22s 
{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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 22s 
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 
6s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 20s 
{color} | {color:green} trunk passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 22s 
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
30s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 32s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
30s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m 
39s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 29s 
{color} | {color:green} trunk passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 13s 
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 9s 
{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 
20s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 15s 
{color} | {color:green} the patch passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 15s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 21s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 21s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
27s {color} | {color:green} hadoop-hdfs-project: patch generated 0 new + 211 
unchanged - 5 fixed = 211 total (was 216) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 24s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
22s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 5s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 23s 
{color} | {color:green} the patch passed with JDK v1.8.0_92 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 8s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 53s 
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK 
v1.8.0_92. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 69m 41s {color} 
| {color:red} hadoop-hdfs in the patch failed with JDK v1.8.0_92. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 59s 
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK 
v1.7.0_95. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 74m 6s {color} 
| {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
22s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 182m 45s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| JDK v1.8.0_92 Failed junit tests | hadoop.hdfs.TestHFlush |
|   | hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl |
| JDK v1.7.0_95 Failed junit tests | 
hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:fbe3e86 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12800710/HADOOP-10220.005.patch
 |
| JIRA Issue | HDFS-10220 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 35daba647b3c 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 | trunk / a5fed8b |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_92 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15288/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_92.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15288/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_95.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-HDFS-Build/15288/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_92.txt
 
https://builds.apache.org/job/PreCommit-HDFS-Build/15288/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_95.txt
 |
| JDK v1.7.0_95  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15288/testReport/ |
| modules | C:  hadoop-hdfs-project/hadoop-hdfs-client   
hadoop-hdfs-project/hadoop-hdfs  U: hadoop-hdfs-project |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15288/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


This message was automatically generated.



> Namenode failover due to too long loking in LeaseManager.Monitor
> ----------------------------------------------------------------
>
>                 Key: HDFS-10220
>                 URL: https://issues.apache.org/jira/browse/HDFS-10220
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Nicolas Fraison
>            Assignee: Nicolas Fraison
>            Priority: Minor
>         Attachments: HADOOP-10220.001.patch, HADOOP-10220.002.patch, 
> HADOOP-10220.003.patch, HADOOP-10220.004.patch, HADOOP-10220.005.patch, 
> threaddump_zkfc.txt
>
>
> I have faced a namenode failover due to unresponsive namenode detected by the 
> zkfc with lot's of WARN messages (5 millions) like this one:
> _org.apache.hadoop.hdfs.StateChange: BLOCK* internalReleaseLease: All 
> existing blocks are COMPLETE, lease removed, file closed._
> On the threaddump taken by the zkfc there are lots of thread blocked due to a 
> lock.
> Looking at the code, there are a lock taken by the LeaseManager.Monitor when 
> some lease must be released. Due to the really big number of lease to be 
> released the namenode has taken too many times to release them blocking all 
> other tasks and making the zkfc thinking that the namenode was not 
> available/stuck.
> The idea of this patch is to limit the number of leased released each time we 
> check for lease so the lock won't be taken for a too long time period.



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