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https://issues.apache.org/jira/browse/MAPREDUCE-6837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16174930#comment-16174930
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Hadoop QA commented on MAPREDUCE-6837:
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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
11s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 12m
25s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 14m
10s{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
56s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
46s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 10m
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 10m
37s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
29s{color} | {color:red} hadoop-common-project/hadoop-common: The patch
generated 8 new + 0 unchanged - 0 fixed = 8 total (was 0) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
52s{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
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
45s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 7m 2s{color}
| {color:red} hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
24s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 53m 36s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.fs.shell.TestCopyFromLocal |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:71bbb86 |
| JIRA Issue | MAPREDUCE-6837 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12888306/MAPREDUCE-6837.002.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux 6c9ce8918ec1 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12
13:48:03 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / 6bf921a |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC1 |
| checkstyle |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7147/artifact/patchprocess/diff-checkstyle-hadoop-common-project_hadoop-common.txt
|
| unit |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7147/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7147/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7147/console |
| Powered by | Apache Yetus 0.5.0 http://yetus.apache.org |
This message was automatically generated.
> Add an equivalent to Crunch's Pair class
> ----------------------------------------
>
> Key: MAPREDUCE-6837
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6837
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Reporter: Daniel Templeton
> Assignee: Peter Cseh
> Labels: newbie++
> Attachments: MAPREDUCE-6837.001.patch, MAPREDUCE-6837.002.patch
>
>
> Crunch has this great {{Pair}} class
> (https://crunch.apache.org/apidocs/0.14.0/org/apache/crunch/Pair.html) that
> saves one from constantly implementing composite writables. It seems silly
> that we still don't have an equivalent in MR.
> I would like to see a new class with the following API:
> {code}
> package org.apache.hadoop.io;
> public class CompositeWritable<P extends WritableComparable, S extends
> WritableComparable> implements WritableComparable<CompositeWritable> {
> public CompositeWritable(P primary, S secondary);
> public P getPrimary();
> public void setPrimary(P primary);
> public S getSecondary();
> public void setSecondary(S secondary);
> // Return true if both primaries and both secondaries are equal
> public boolean equals(CompositeWritable o);
> // Return the primary's hash code
> public long hashCode();
> // Sort first by primary and then by secondary
> public int compareTo(CompositeWritable o);
> public void readFields(DataInput in);
> public void write(DataOutput out);
> }
> {code}
> With such a class, implementing a secondary sort would mean just implementing
> a custom grouping comparator. That comparator could also be implemented as
> part of this JIRA:
> {code}
> package org.apache.hadoop.io;
> public class CompositeGroupingComparator extends WritableComparator {
> ...
> }
> {code}
> Or some such.
> Crunch also provides {{Tuple3}}, {{Tuple4}}, and {{TupleN}} classes, but I
> don't think we need to add equivalents. If someone really wants that
> capability, they can nest composite keys.
> Don't forget to add unit tests!
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