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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 Wed, 30 Mar 2016 05:01:25 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217384#comment-15217384
] 

Hadoop QA commented on HDFS-5177:
---------------------------------

| (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 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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 33s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s {color} |
{color:green} trunk passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 41s {color} |
{color:green} trunk passed 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:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 51s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 13s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 56s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 4s {color} | {color:green}
trunk passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 49s {color} |
{color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 47s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 38s {color} |
{color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 38s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 41s {color} |
{color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 41s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 19s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 49s {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: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} 2m 6s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 4s {color} | {color:green}
the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 44s {color} |
{color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 70m 49s {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} 66m 57s {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 21s {color} | {color:red}
Patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 162m 56s {color} | {color:black}
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|| Reason || Tests ||
| JDK v1.8.0_74 Failed junit tests | hadoop.hdfs.TestHFlush |
|   | hadoop.hdfs.server.balancer.TestBalancer |
| JDK v1.7.0_95 Failed junit tests | hadoop.hdfs.TestHFlush |
|   | hadoop.hdfs.server.namenode.TestNameNodeMetadataConsistency |
|   | 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/12795992/HDFS-5177-05.patch
|
| JIRA Issue | HDFS-5177 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux e55d5cfa7493 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 / 8286270 |
| 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
|
| findbugs | v3.0.0 |
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/14992/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_74.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/14992/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/14992/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_74.txt
https://builds.apache.org/job/PreCommit-HDFS-Build/14992/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/14992/testReport/
|
| asflicense | https://builds.apache.org/job/PreCommit-HDFS-Build/14992/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/14992/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-5177-05.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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