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https://issues.apache.org/jira/browse/HDFS-10803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15438482#comment-15438482
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Hadoop QA commented on HDFS-10803:
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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
17s{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
26s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
52s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
57s{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
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
49s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
23s{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
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
1s{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
55s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 89m 25s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
22s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}109m 37s{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDataNodeUUID |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| Timed out junit tests | org.apache.hadoop.hdfs.TestLeaseRecovery2 |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:9560f25 |
| JIRA Issue | HDFS-10803 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12825596/HDFS-10803.001.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux 688ba967f82a 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 / 27c3b86 |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/16546/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/16546/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/16546/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools fails
> intermittently due to no free space available
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10803
> URL: https://issues.apache.org/jira/browse/HDFS-10803
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Attachments: HDFS-10803.001.patch
>
>
> The test {{TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools}}
> fails intermittently. The stack
> infos(https://builds.apache.org/job/PreCommit-HDFS-Build/16534/testReport/org.apache.hadoop.hdfs.server.balancer/TestBalancerWithMultipleNameNodes/testBalancing2OutOf3Blockpools/):
> {code}
> java.io.IOException: Creating block, no free space available
> at
> org.apache.hadoop.hdfs.server.datanode.SimulatedFSDataset$BInfo.<init>(SimulatedFSDataset.java:151)
> at
> org.apache.hadoop.hdfs.server.datanode.SimulatedFSDataset.injectBlocks(SimulatedFSDataset.java:580)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.injectBlocks(MiniDFSCluster.java:2679)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.unevenDistribution(TestBalancerWithMultipleNameNodes.java:405)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.testBalancing2OutOf3Blockpools(TestBalancerWithMultipleNameNodes.java:516)
> {code}
> The error message means that the datanode's capacity has used up and there is
> no other space to create a new file block.
> I looked into the code, I found the main reason seemed that the
> {{capacities}} for cluster is not correctly constructed in the second
> cluster startup before preparing to redistribute blocks in test.
> The related code:
> {code}
> // Here we do redistribute blocks nNameNodes times for each node,
> // we need to adjust the capacities. Otherwise it will cause the no
> // free space errors sometimes.
> final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
> .nnTopology(MiniDFSNNTopology.simpleFederatedTopology(nNameNodes))
> .numDataNodes(nDataNodes)
> .racks(racks)
> .simulatedCapacities(newCapacities)
> .format(false)
> .build();
> LOG.info("UNEVEN 11");
> ...
> for(int n = 0; n < nNameNodes; n++) {
> // redistribute blocks
> final Block[][] blocksDN = TestBalancer.distributeBlocks(
> blocks[n], s.replication, distributionPerNN);
>
> for(int d = 0; d < blocksDN.length; d++)
> cluster.injectBlocks(n, d, Arrays.asList(blocksDN[d]));
> LOG.info("UNEVEN 13: n=" + n);
> }
> {code}
> And that means the totalUsed value has been increased as
> {{nNameNodes*usedSpacePerNN}} rather than {{usedSpacePerNN}}.
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