[ 
https://issues.apache.org/jira/browse/MAPREDUCE-6956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16159200#comment-16159200
 ] 

Hadoop QA commented on MAPREDUCE-6956:
--------------------------------------

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
39s{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} 14m 
34s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
26s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
21s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
51s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
22s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
24s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
24s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 24s{color} 
| {color:red} 
hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core 
generated 3 new + 162 unchanged - 0 fixed = 165 total (was 162) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
17s{color} | {color:red} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core: 
The patch generated 8 new + 94 unchanged - 12 fixed = 102 total (was 106) 
{color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
26s{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}  0m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
19s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
39s{color} | {color:green} hadoop-mapreduce-client-core in the patch passed. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
15s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 24m  2s{color} | 
{color:black} {color} |
\\
\\
|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:71bbb86 |
| JIRA Issue | MAPREDUCE-6956 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12886146/MAPREDUCE-6956-001.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux e94ff8f0656f 3.13.0-119-generic #166-Ubuntu SMP Wed May 3 
12:18:55 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / c35510a |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC1 |
| javac | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7125/artifact/patchprocess/diff-compile-javac-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7125/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7125/testReport/ |
| modules | C: 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
U: 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core |
| Console output | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7125/console |
| Powered by | Apache Yetus 0.5.0   http://yetus.apache.org |


This message was automatically generated.



> FileOutputCommitter to gain abstract superclass PathOutputCommitter
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6956
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6956
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 3.0.0-beta1
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>         Attachments: MAPREDUCE-6956-001.patch
>
>
> This is the initial step of MAPREDUCE-6823, which proposes a factory behind 
> {{FileOutputFormat}} to create different committers for different 
> filesystems, if so configured..
> This patch simply adds the new abstract superclass of 
> {{FileOutputCommitter}}, {{PathOutputCommitter extends OutputCommitter}}. 
> This abstract class adds the {{getWorkPath()}} method as an abstract method, 
> with {{FIleOutputCommitter}} being the implementation..
> {{FileOutputFormat}} then relaxes its requirement of any committer returned 
> by {{getOutputCommitter()}}, so that instead of requiring a  
> {{FileOutputCommitter}} or subclass, it only needs a {{PathOutputCommitter}}, 
> using {{PathOutputCommitter.getWorkPath()}} to get the work path.
> What does that do?
> It allows people to implement subclasses of {{FileOutputFormat}} which can 
> provide their own committers *which don't need to inherit the complexity that 
> FileOutputCommitter has acquired over time*
> Currently anyone implementing a new committer (example: Netflix S3 committer) 
> needs to subclass {{FileOutputCommitter}}, which is too complex to understand 
> except under a debugger with co-recursive routines, lots of methods which 
> need to be overwritten to guarantee a safe subclass, and, because of its 
> critical role and known subclassing, something which isn't ever going to be 
> cleaned up.
> A new, lean, parent class which {{FileOutputFormat}} can handle allows people 
> to write new committers which don't have to worry about implementation 
> details of {{FileOutputCommitter}}, but instead how well they implement the 
> semantics of committing work.
> The full MAPREDUCE-6823 goes beyond this with a change to 
> {{FileOutputFormat}} for a factory for creating FS-specific 
> {{PathOutputCommitter}} instances. This patch doesn't include that, as that 
> is something which needs to be reviewed in the context of HADOOP-13786 and 
> ideally 1+ committer for another store, so people can say "this factory model 
> works".
> All I'm proposing here is: tune the committer class hierarchy in MRv2 so that 
> people can more easily implement committers, and when that factory is done, 
> for it to be switched to easily. And I'd like this in branch-3 from the 
> outset, so existing code which calls {{FileOutputFormat.getCommitter()}} to 
> get a {{FileOutputCommitter}} *just to call getWorkPath()* can move to the 
> new interface across all of Hadoop 3.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org

Reply via email to