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https://issues.apache.org/jira/browse/HDFS-10966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15658990#comment-15658990
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Hadoop QA commented on HDFS-10966:
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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} 4m
20s{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} 7m
18s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
35s{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
42s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
45s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
42s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 32s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch
generated 6 new + 702 unchanged - 3 fixed = 708 total (was 705) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
10s{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} 1m
46s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
37s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 53m 59s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
20s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 77m 13s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.namenode.ha.TestDFSUpgradeWithHA |
| | hadoop.hdfs.tools.TestDFSZKFailoverController |
| | hadoop.hdfs.tools.TestDelegationTokenFetcher |
| | hadoop.tools.TestHdfsConfigFields |
| | hadoop.hdfs.server.namenode.TestNameNodeMetadataConsistency |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HDFS-10966 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12838640/HDFS-10966.00.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux 24a5c6f025f4 3.13.0-95-generic #142-Ubuntu SMP Fri Aug 12
17:00:09 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / fad9609 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/17539/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/17539/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/17539/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/17539/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Enhance Dispatcher logic on deciding when to give up a source DataNode
> ----------------------------------------------------------------------
>
> Key: HDFS-10966
> URL: https://issues.apache.org/jira/browse/HDFS-10966
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover
> Reporter: Zhe Zhang
> Assignee: Mark Wagner
> Attachments: HDFS-10966.00.patch
>
>
> When a {{Dispatcher}} thread works on a source DataNode, in each iteration it
> tries to execute a {{PendingMove}}. If no block is moved after 5 iterations,
> this source (over-utlized) DataNode is given up for this Balancer iteration
> (20 mins). This is problematic if the source DataNode was heavily loaded in
> the beginning of the iteration. It will quickly encounter 5 unsuccessful
> moves and be abandoned.
> We should enhance this logic by e.g. using elapsed time instead of number of
> iterations.
> {code}
> // Check if the previous move was successful
> } else {
> // source node cannot find a pending block to move, iteration +1
> noPendingMoveIteration++;
> // in case no blocks can be moved for source node's task,
> // jump out of while-loop after 5 iterations.
> if (noPendingMoveIteration >= MAX_NO_PENDING_MOVE_ITERATIONS) {
> LOG.info("Failed to find a pending move " +
> noPendingMoveIteration
> + " times. Skipping " + this);
> resetScheduledSize();
> }
> }
> {code}
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