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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5177) blocksScheduled count should be decremented for abandoned blocks
Date Sat, 26 Mar 2016 10:08:25 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15212930#comment-15212930
] 

Hadoop QA commented on HDFS-5177:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 15s {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:red}-1{color} | {color:red} mvninstall {color} | {color:red} 3m 4s {color} | {color:red}
root in trunk failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 37s {color} | {color:red}
hadoop-hdfs in trunk failed with JDK v1.8.0_74. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 27s {color} | {color:red}
hadoop-hdfs in trunk failed with JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 21s {color}
| {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 28s {color} | {color:red}
hadoop-hdfs in trunk failed. {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 24s {color} | {color:red}
hadoop-hdfs in trunk failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 14s {color} |
{color:green} trunk passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 1s {color} | {color:green}
trunk passed with JDK v1.7.0_95 {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 24s {color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 31s {color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.8.0_74. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 31s {color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.8.0_74. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 30s {color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.7.0_95. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 30s {color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 19s {color}
| {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 27s {color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 12s {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:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 28s {color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 22s {color} |
{color:green} the patch passed with JDK v1.8.0_74 {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:red}-1{color} | {color:red} unit {color} | {color:red} 0m 41s {color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.8.0_74. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 26s {color} | {color:red}
hadoop-hdfs in the patch failed with JDK v1.7.0_95. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 18s {color} | {color:red}
Patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 18m 55s {color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:fbe3e86 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12795507/HDFS-5177-04.patch
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| JIRA Issue | HDFS-5177 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux c21667e765dd 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 / e5ff0ea |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_74 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95
|
| mvninstall | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/branch-mvninstall-root.txt
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| compile | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_74.txt
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| compile | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_95.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt
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| findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs.txt
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| mvninstall | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt
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| compile | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_74.txt
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| javac | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_74.txt
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| compile | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_95.txt
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| javac | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_95.txt
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| mvnsite | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt
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| findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-findbugs-hadoop-hdfs-project_hadoop-hdfs.txt
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| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_74.txt
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| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_95.txt
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| JDK v1.7.0_95  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/testReport/
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| asflicense | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/artifact/patchprocess/patch-asflicense-problems.txt
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| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/14948/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


This message was automatically generated.



> blocksScheduled  count should be decremented for abandoned blocks
> -----------------------------------------------------------------
>
>                 Key: HDFS-5177
>                 URL: https://issues.apache.org/jira/browse/HDFS-5177
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0, 2.1.0-beta
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>         Attachments: HDFS-5177-04.patch, HDFS-5177.patch, HDFS-5177.patch, HDFS-5177.patch
>
>
> DatanodeDescriptor#incBlocksScheduled() will be called for all datanodes of the block
on each allocation. But same should be decremented for abandoned blocks.
> When one of the datanodes is down and same is allocated for the block along with other
live datanodes, then this block will be abandoned, but the scheduled count on other datanodes
will consider live datanodes as loaded, but in reality these datanodes may not be loaded.
> Anyway this scheduled count will be rolled every 20 mins.
> Problem will come if the rate of creation of files is more. Due to increase in the scheduled
count, there might be chances of missing local datanode to write to. and some times writes
also can fail in small clusters.
> So we need to decrement the unnecessary count on abandon block call.



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