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https://issues.apache.org/jira/browse/HDFS-10529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069464#comment-16069464
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Hadoop QA commented on HDFS-10529:
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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
23s{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:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m
0s{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m
2s{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
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
58s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
48s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs in trunk has 10 extant
Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
58s{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
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
40s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 99m 34s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
28s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}126m 54s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests |
hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure010 |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HDFS-10529 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12810769/HDFS-10529.000.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux 037b0fe6cfcf 3.13.0-116-generic #163-Ubuntu SMP Fri Mar 31
14:13:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / af2773f |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| findbugs |
https://builds.apache.org/job/PreCommit-HDFS-Build/20110/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs-warnings.html
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/20110/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/20110/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/20110/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Df reports incorrect usage when appending less than block size
> --------------------------------------------------------------
>
> Key: HDFS-10529
> URL: https://issues.apache.org/jira/browse/HDFS-10529
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.2, 3.0.0-alpha1
> Reporter: Pranav Prakash
> Assignee: Pranav Prakash
> Priority: Minor
> Labels: datanode, fs, hdfs
> Attachments: HDFS-10529.000.patch
>
>
> Steps to recreate issue:
> 1. Create a 100MB file on HDFS cluster with 128MB blocksize and replication
> factor 3
> 2. Append 100MB to the file
> 3. Df reports around 900MB even though it should only be around 600MB.
> Looking at the blocks confirms that df is incorrect, as there exist only two
> blocks on each DN -- a 128MB block and a 72MB block.
> This issue seems to arise because BlockPoolSlice does not account for the
> delta increase in dfsUsage when an append happens to a partially-filled
> block, and instead naively adds the total block size. For instance, in the
> example scenario when when block is "filled" from 100 to 128MB,
> addFinalizedBlock() in BlockPoolSlice adds the size of the newly created
> block into the total instead of accounting for the difference/delta in block
> size between old and new. This has the effect of double-counting the old
> partially-filled block: it is counted once when it is first created (in the
> example scenario when the 100MB file is created) and again when it becomes
> part of the filled block (in the example scenario when the 128MB block is
> formed form the initial 100MB block). Thus the perceived size becomes 100MB +
> 128MB + 72 = 300 MB for each DN, or 900MB across the cluster.
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