[
https://issues.apache.org/jira/browse/HDFS-6440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14562326#comment-14562326
]
Hadoop QA commented on HDFS-6440:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 17m 12s | Pre-patch trunk compilation is
healthy. |
| {color:green}+1{color} | @author | 0m 0s | The patch does not contain any
@author tags. |
| {color:green}+1{color} | tests included | 0m 0s | The patch appears to
include 24 new or modified test files. |
| {color:green}+1{color} | javac | 8m 41s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 10m 26s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 23s | The applied patch does
not increase the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle | 2m 45s | The applied patch generated 6
new checkstyle issues (total was 34, now 40). |
| {color:red}-1{color} | whitespace | 3m 37s | The patch has 15 line(s) that
end in whitespace. Use git apply --whitespace=fix. |
| {color:green}+1{color} | install | 1m 37s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 34s | The patch built with
eclipse:eclipse. |
| {color:red}-1{color} | findbugs | 5m 33s | The patch appears to introduce 3
new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | common tests | 23m 0s | Tests passed in
hadoop-common. |
| {color:red}-1{color} | hdfs tests | 164m 0s | Tests failed in hadoop-hdfs. |
| {color:green}+1{color} | hdfs tests | 3m 49s | Tests passed in bkjournal. |
| | | 242m 19s | |
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs |
| | Should
org.apache.hadoop.hdfs.server.namenode.ImageServlet$ImageUploadRequest be a
_static_ inner class? At ImageServlet.java:inner class? At
ImageServlet.java:[lines 593-628] |
| | Invocation of java.net.URL.equals(Object), which blocks to do domain name
resolution, in
org.apache.hadoop.hdfs.server.namenode.ha.RemoteNameNodeInfo.equals(Object) At
RemoteNameNodeInfo.java:to do domain name resolution, in
org.apache.hadoop.hdfs.server.namenode.ha.RemoteNameNodeInfo.equals(Object) At
RemoteNameNodeInfo.java:[line 122] |
| | Invocation of java.net.URL.hashCode(), which blocks to do domain name
resolution, in
org.apache.hadoop.hdfs.server.namenode.ha.RemoteNameNodeInfo.hashCode() At
RemoteNameNodeInfo.java:to do domain name resolution, in
org.apache.hadoop.hdfs.server.namenode.ha.RemoteNameNodeInfo.hashCode() At
RemoteNameNodeInfo.java:[line 105] |
| Failed unit tests | hadoop.hdfs.server.namenode.ha.TestPipelinesFailover |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12735756/hdfs-6440-trunk-v5.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 5450413 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/artifact/patchprocess/diffcheckstylehadoop-common.txt
|
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/artifact/patchprocess/whitespace.txt
|
| Findbugs warnings |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
|
| hadoop-common test log |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/artifact/patchprocess/testrun_hadoop-common.txt
|
| hadoop-hdfs test log |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| bkjournal test log |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/artifact/patchprocess/testrun_bkjournal.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/11146/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf904.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/11146/console |
This message was automatically generated.
> Support more than 2 NameNodes
> -----------------------------
>
> Key: HDFS-6440
> URL: https://issues.apache.org/jira/browse/HDFS-6440
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: auto-failover, ha, namenode
> Affects Versions: 2.4.0
> Reporter: Jesse Yates
> Assignee: Jesse Yates
> Fix For: 3.0.0
>
> Attachments: Multiple-Standby-NameNodes_V1.pdf,
> hdfs-6440-cdh-4.5-full.patch, hdfs-6440-trunk-v1.patch,
> hdfs-6440-trunk-v1.patch, hdfs-6440-trunk-v3.patch, hdfs-6440-trunk-v4.patch,
> hdfs-6440-trunk-v5.patch, hdfs-multiple-snn-trunk-v0.patch
>
>
> Most of the work is already done to support more than 2 NameNodes (one
> active, one standby). This would be the last bit to support running multiple
> _standby_ NameNodes; one of the standbys should be available for fail-over.
> Mostly, this is a matter of updating how we parse configurations, some
> complexity around managing the checkpointing, and updating a whole lot of
> tests.
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