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https://issues.apache.org/jira/browse/HDFS-8813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14639060#comment-14639060
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Hadoop QA commented on HDFS-8813:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch | 15m 34s | Findbugs (version ) appears to
be broken on HDFS-7285. |
| {color:green}+1{color} | @author | 0m 0s | The patch does not contain any
@author tags. |
| {color:red}-1{color} | tests included | 0m 0s | 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:green}+1{color} | javac | 7m 39s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 9m 43s | There were no new javadoc
warning messages. |
| {color:red}-1{color} | release audit | 0m 15s | The applied patch generated
1 release audit warnings. |
| {color:green}+1{color} | checkstyle | 0m 39s | There were no new checkstyle
issues. |
| {color:green}+1{color} | whitespace | 0m 0s | The patch has no lines that
end in whitespace. |
| {color:green}+1{color} | install | 1m 40s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 33s | The patch built with
eclipse:eclipse. |
| {color:red}-1{color} | findbugs | 3m 27s | The patch appears to introduce 5
new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | native | 3m 18s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 171m 45s | Tests failed in hadoop-hdfs. |
| | | 214m 39s | |
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs |
| Failed unit tests | hadoop.hdfs.server.namenode.TestFileTruncate |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12746787/HDFS-8813-HDFS-7285.01.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | HDFS-7285 / 5956d23 |
| Release Audit |
https://builds.apache.org/job/PreCommit-HDFS-Build/11806/artifact/patchprocess/patchReleaseAuditProblems.txt
|
| Findbugs warnings |
https://builds.apache.org/job/PreCommit-HDFS-Build/11806/artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
|
| hadoop-hdfs test log |
https://builds.apache.org/job/PreCommit-HDFS-Build/11806/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/11806/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.gq1.ygridcore.net 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 |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/11806/console |
This message was automatically generated.
> Erasure Coding: Client no need to decode missing parity blocks
> --------------------------------------------------------------
>
> Key: HDFS-8813
> URL: https://issues.apache.org/jira/browse/HDFS-8813
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Walter Su
> Assignee: Walter Su
> Priority: Minor
> Attachments: HDFS-8813-HDFS-7285.01.patch
>
>
> Assume 6+3 schema.
> Assume data block #2 is missing, then InputStream tries to read parity block
> #6.
> Assume parity block #6 is missing too. And InputStream successfully reads
> parity block #7.
> Then begin to decode.
> Currently InputStream will decode #2 and #6. But client(user) only need #2.
> The parity block #6 will be disposed.
> The improvement is we only decode #2.
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