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https://issues.apache.org/jira/browse/HDFS-15147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17026775#comment-17026775
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Hadoop QA commented on HDFS-15147:
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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 
47s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 5 new or modified test 
files. {color} |
|| || || || {color:brown} branch-2.10 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  9m 
 1s{color} | {color:green} branch-2.10 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
55s{color} | {color:green} branch-2.10 passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
48s{color} | {color:green} branch-2.10 passed with JDK v1.8.0_242 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
36s{color} | {color:green} branch-2.10 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
55s{color} | {color:green} branch-2.10 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
4s{color} | {color:green} branch-2.10 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
8s{color} | {color:green} branch-2.10 passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
44s{color} | {color:green} branch-2.10 passed with JDK v1.8.0_242 {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
49s{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
49s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed with JDK v1.8.0_242 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
32s{color} | {color:green} hadoop-hdfs-project/hadoop-hdfs: The patch generated 
0 new + 491 unchanged - 5 fixed = 491 total (was 496) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
5s{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
40s{color} | {color:green} the patch passed with JDK v1.8.0_242 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 71m  7s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
27s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 98m 26s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.balancer.TestBalancerRPCDelay |
|   | hadoop.hdfs.qjournal.server.TestJournalNodeRespectsBindHostKeys |
|   | hadoop.hdfs.server.namenode.ha.TestDNFencingWithReplication |
|   | hadoop.hdfs.server.namenode.ha.TestDelegationTokensWithHA |
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.5 Server=19.03.5 Image:yetus/hadoop:a969cad0a12 |
| JIRA Issue | HDFS-15147 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12992231/HDFS-15147-branch-2.10.001.patch
 |
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  
mvnsite  unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 0f64b1090070 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 
08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | branch-2.10 / 2957268 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_242 |
| Multi-JDK versions |  /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 
/usr/lib/jvm/java-8-openjdk-amd64:1.8.0_242 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/28724/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/28724/testReport/ |
| Max. process+thread count | 2165 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/28724/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> LazyPersistTestCase wait logic is error pruned
> ----------------------------------------------
>
>                 Key: HDFS-15147
>                 URL: https://issues.apache.org/jira/browse/HDFS-15147
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Ahmed Hussein
>            Assignee: Ahmed Hussein
>            Priority: Minor
>         Attachments: HDFS-15147-branch-2.10.001.patch, HDFS-15147.001.patch
>
>
> {{LazyPersistTestCase}} has some issues hat lead to inconsistent result of 
> the test cases:
> * the wait periods to change of status is too long. It reaches 10 secs in 
> some cases.
> * triggerBlockReport() only triggers FBR of DN with index 0. This is counter 
> intuitive because the JUnit tests restart the DN assuming that the restarted 
> DN will send a FBR. However, this never happens because the DN will get a new 
> index post restart.
> {code:java}
>   protected final void triggerBlockReport()
>       throws IOException, InterruptedException {
>     // Trigger block report to NN
>     DataNodeTestUtils.triggerBlockReport(cluster.getDataNodes().get(0));
>     Thread.sleep(10 * 1000);
>   }
> {code}
> [~inigoiri] suggested that we propagate the findings and fixes from 
> HDFS-13179 and HDFS-15144 into {{LazyPersistTestCase.java}}. This will 
> eventually reduce the runtime and make the test cases more stable.



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