[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-09-02 Thread Hadoop QA (Jira)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16921144#comment-16921144
 ] 

Hadoop QA commented on MAPREDUCE-7089:
--

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m 11s{color} 
| {color:red} https://github.com/apache/hadoop/pull/454 does not apply to 
trunk. Rebase required? Wrong Branch? See 
https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
\\
\\
|| Subsystem || Report/Notes ||
| JIRA Issue | MAPREDUCE-7089 |
| Console output | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/9/console |
| versions | git=2.17.1 |
| Powered by | Apache Yetus 0.10.0 http://yetus.apache.org |


This message was automatically generated.



> ReadMapper.doIO hangs with user misconfigured inputs
> 
>
> Key: MAPREDUCE-7089
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7089
> Project: Hadoop Map/Reduce
>  Issue Type: Bug
>  Components: client, test
>Affects Versions: 2.5.0
>Reporter: John Doe
>Priority: Minor
>
> When a user configures the bufferSize to be 0, the while loop in 
> TestDFSIO$ReadMapper.doIO function hangs endlessly.
> This is because the loop stride, curSize is always 0, making the loop index 
> actualSize always less than the upper bound totalSize.
> Here is the code snippet.
> {code:java}
> int bufferSize = DEFAULT_BUFFER_SIZE;
> for(int i = 0; i < args.length; i++) { // parse command line
>   ...
>   else if (args[i].equals("-bufferSize")) {
>   bufferSize = Integer.parseInt(args[++i]);
>   }
>   ...
> }
> public Long doIO(Reporter reporter, String name, long totalSize) throws 
> IOException {
>   InputStream in = (InputStream)this.stream;
>   long actualSize = 0;
>   while (actualSize < totalSize) {
>     int curSize = in.read(buffer, 0, bufferSize);
>     if(curSize < 0) break;
>     actualSize += curSize;
>     reporter.setStatus("reading " + name + "@" + actualSize + "/" + totalSize 
> + " ::host = " + hostName);
>   }
>   return Long.valueOf(actualSize);
> }
> {code}



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[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-08-27 Thread Hadoop QA (Jira)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16916778#comment-16916778
 ] 

Hadoop QA commented on MAPREDUCE-7089:
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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 
56s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 18m 
12s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
33s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
36s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
12m  8s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
21s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
48s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {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 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
26s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 22s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
29s{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} shadedclient {color} | {color:green} 
12m 23s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}127m  7s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
37s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}178m 32s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.mapred.TestLazyOutput |
|   | hadoop.mapreduce.v2.TestMiniMRProxyUser |
|   | hadoop.mapreduce.TestMRJobClient |
|   | hadoop.mapreduce.TestMapReduceLazyOutput |
\\
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/8/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux a774c71009e1 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 3329257 |
| Default Java | 1.8.0_222 |
| 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-08-22 Thread Hadoop QA (Jira)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16913567#comment-16913567
 ] 

Hadoop QA commented on MAPREDUCE-7089:
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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 
41s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 17m 
15s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
11m 14s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
17s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
36s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
35s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
21s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
21s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 16s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
24s{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} shadedclient {color} | {color:green} 
11m 49s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
41s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}125m 41s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
36s{color} | {color:red} The patch generated 2 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}173m  8s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.mapreduce.v2.TestNonExistentJob |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/7/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux eea096cd9704 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 
17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 69ddb36 |
| Default Java | 1.8.0_222 |
| checkstyle | 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-08-16 Thread Hadoop QA (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16909407#comment-16909407
 ] 

Hadoop QA commented on MAPREDUCE-7089:
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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 
36s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 20m 
21s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
23s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
30s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
13m 16s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
25s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  1m  
2s{color} | {color:blue} Used deprecated FindBugs config; considering switching 
to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
59s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
35s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
30s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
30s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 20s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
29s{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} shadedclient {color} | {color:green} 
14m 18s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}109m 33s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
35s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}165m 59s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.mapred.TestMRTimelineEventHandling |
|   | hadoop.mapreduce.v2.TestMiniMRProxyUser |
|   | hadoop.mapreduce.v2.TestMRJobsWithProfiler |
|   | hadoop.mapreduce.v2.TestMROldApiJobs |
|   | hadoop.mapreduce.v2.TestMRJobs |
\\
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/5/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 31a944388847 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 
10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-08-08 Thread Hadoop QA (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16902767#comment-16902767
 ] 

Hadoop QA commented on MAPREDUCE-7089:
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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}  1m 
52s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 23m 
23s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
32s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
28s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
39s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
15m 10s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
23s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
50s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
48s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
35s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
28s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 21s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
30s{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} shadedclient {color} | {color:green} 
14m 22s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
51s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}140m 24s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
38s{color} | {color:red} The patch generated 2 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}203m 12s{color} | 
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.ipc.TestMRCJCSocketFactory |
|   | hadoop.fs.TestDFSIO |
|   | hadoop.mapreduce.TestMRJobClient |
|   | hadoop.mapred.TestJobSysDirWithDFS |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/4/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 9f86d7f3c593 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 
17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 00b5a27 |
| Default Java | 1.8.0_212 |
| checkstyle | 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-08-01 Thread Hadoop QA (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16898567#comment-16898567
 ] 

Hadoop QA commented on MAPREDUCE-7089:
--

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
45s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 18m 
 4s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
32s{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 
40s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
11m 57s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
21s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
49s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
47s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
31s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
30s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
30s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 22s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
33s{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} shadedclient {color} | {color:green} 
12m 17s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
49s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}122m 19s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
29s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}172m 51s{color} | 
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.mapred.TestJobSysDirWithDFS |
|   | hadoop.mapred.TestMapRed |
|   | hadoop.mapred.TestMerge |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/3/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 1d0458fbe189 4.4.0-157-generic #185-Ubuntu SMP Tue Jul 23 
09:17:01 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / c2d00c8 |
| Default Java | 1.8.0_212 |
| checkstyle | 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-07-26 Thread Hadoop QA (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16894038#comment-16894038
 ] 

Hadoop QA commented on MAPREDUCE-7089:
--

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
46s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 17m 
56s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
32s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
35s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
11m  4s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
19s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
47s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
44s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
31s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
27s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 19s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
32s{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} shadedclient {color} | {color:green} 
12m 13s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}121m  8s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
34s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}170m 35s{color} | 
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.mapred.TestLazyOutput |
|   | hadoop.mapred.TestMiniMRClientCluster |
|   | hadoop.mapred.TestSpecialCharactersInOutputPath |
|   | hadoop.mapred.TestMerge |
|   | hadoop.mapreduce.TestMRJobClient |
|   | hadoop.mapred.TestJobSysDirWithDFS |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/2/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 9aa37669bc08 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 
17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2019-07-19 Thread Hadoop QA (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16889054#comment-16889054
 ] 

Hadoop QA commented on MAPREDUCE-7089:
--

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
40s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} 17m 
56s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
31s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
39s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
11m 30s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
21s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
45s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
43s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
28s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 17s{color} | {color:orange} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
 The patch generated 1 new + 47 unchanged - 0 fixed = 48 total (was 47) {color} 
|
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
30s{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} shadedclient {color} | {color:green} 
11m 52s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}148m 52s{color} 
| {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
35s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}198m  3s{color} | 
{color:black} {color} |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=18.09.8 Server=18.09.8 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/1/artifact/out/Dockerfile
 |
| GITHUB PR | https://github.com/apache/hadoop/pull/454 |
| JIRA Issue | MAPREDUCE-7089 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux f56b7db4af21 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 
17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / cd967c7 |
| Default Java | 1.8.0_212 |
| checkstyle | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-454/1/artifact/out/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt
 |
| unit | 

[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2018-12-28 Thread Sharath Chalya nagaraju (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16730431#comment-16730431
 ] 

Sharath Chalya nagaraju commented on MAPREDUCE-7089:


I would rather put the check outside while loop. 

PR: https://github.com/apache/hadoop/pull/454

> ReadMapper.doIO hangs with user misconfigured inputs
> 
>
> Key: MAPREDUCE-7089
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7089
> Project: Hadoop Map/Reduce
>  Issue Type: Bug
>  Components: client, test
>Affects Versions: 2.5.0
>Reporter: John Doe
>Priority: Minor
>
> When a user configures the bufferSize to be 0, the while loop in 
> TestDFSIO$ReadMapper.doIO function hangs endlessly.
> This is because the loop stride, curSize is always 0, making the loop index 
> actualSize always less than the upper bound totalSize.
> Here is the code snippet.
> {code:java}
> int bufferSize = DEFAULT_BUFFER_SIZE;
> for(int i = 0; i < args.length; i++) { // parse command line
>   ...
>   else if (args[i].equals("-bufferSize")) {
>   bufferSize = Integer.parseInt(args[++i]);
>   }
>   ...
> }
> public Long doIO(Reporter reporter, String name, long totalSize) throws 
> IOException {
>   InputStream in = (InputStream)this.stream;
>   long actualSize = 0;
>   while (actualSize < totalSize) {
>     int curSize = in.read(buffer, 0, bufferSize);
>     if(curSize < 0) break;
>     actualSize += curSize;
>     reporter.setStatus("reading " + name + "@" + actualSize + "/" + totalSize 
> + " ::host = " + hostName);
>   }
>   return Long.valueOf(actualSize);
> }
> {code}



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[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2018-12-28 Thread ASF GitHub Bot (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16730430#comment-16730430
 ] 

ASF GitHub Bot commented on MAPREDUCE-7089:
---

GitHub user sharath-c-n opened a pull request:

https://github.com/apache/hadoop/pull/454

Fixing bug : https://issues.apache.org/jira/browse/MAPREDUCE-7089

Bug: When a user configures the bufferSize to be 0, the while loop in 
TestDFSIO$ReadMapper.doIO function hangs endlessly.

solution : check if the bufferSize is greater than 0, if not throw 
IllegalArgument Exception

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/sharath-c-n/hadoop trunk

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/hadoop/pull/454.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #454


commit dec6a2846241cfd054acbcb601deca997fd4d447
Author: schalyanagaraju 
Date:   2018-12-28T18:47:51Z

Fixing bug : https://issues.apache.org/jira/browse/MAPREDUCE-7089




> ReadMapper.doIO hangs with user misconfigured inputs
> 
>
> Key: MAPREDUCE-7089
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7089
> Project: Hadoop Map/Reduce
>  Issue Type: Bug
>  Components: client, test
>Affects Versions: 2.5.0
>Reporter: John Doe
>Priority: Minor
>
> When a user configures the bufferSize to be 0, the while loop in 
> TestDFSIO$ReadMapper.doIO function hangs endlessly.
> This is because the loop stride, curSize is always 0, making the loop index 
> actualSize always less than the upper bound totalSize.
> Here is the code snippet.
> {code:java}
> int bufferSize = DEFAULT_BUFFER_SIZE;
> for(int i = 0; i < args.length; i++) { // parse command line
>   ...
>   else if (args[i].equals("-bufferSize")) {
>   bufferSize = Integer.parseInt(args[++i]);
>   }
>   ...
> }
> public Long doIO(Reporter reporter, String name, long totalSize) throws 
> IOException {
>   InputStream in = (InputStream)this.stream;
>   long actualSize = 0;
>   while (actualSize < totalSize) {
>     int curSize = in.read(buffer, 0, bufferSize);
>     if(curSize < 0) break;
>     actualSize += curSize;
>     reporter.setStatus("reading " + name + "@" + actualSize + "/" + totalSize 
> + " ::host = " + hostName);
>   }
>   return Long.valueOf(actualSize);
> }
> {code}



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[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2018-12-27 Thread lqjacklee (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16729627#comment-16729627
 ] 

lqjacklee commented on MAPREDUCE-7089:
--

https://github.com/apache/hadoop/pull/453

> ReadMapper.doIO hangs with user misconfigured inputs
> 
>
> Key: MAPREDUCE-7089
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7089
> Project: Hadoop Map/Reduce
>  Issue Type: Bug
>  Components: client, test
>Affects Versions: 2.5.0
>Reporter: John Doe
>Priority: Minor
>
> When a user configures the bufferSize to be 0, the while loop in 
> TestDFSIO$ReadMapper.doIO function hangs endlessly.
> This is because the loop stride, curSize is always 0, making the loop index 
> actualSize always less than the upper bound totalSize.
> Here is the code snippet.
> {code:java}
> int bufferSize = DEFAULT_BUFFER_SIZE;
> for(int i = 0; i < args.length; i++) { // parse command line
>   ...
>   else if (args[i].equals("-bufferSize")) {
>   bufferSize = Integer.parseInt(args[++i]);
>   }
>   ...
> }
> public Long doIO(Reporter reporter, String name, long totalSize) throws 
> IOException {
>   InputStream in = (InputStream)this.stream;
>   long actualSize = 0;
>   while (actualSize < totalSize) {
>     int curSize = in.read(buffer, 0, bufferSize);
>     if(curSize < 0) break;
>     actualSize += curSize;
>     reporter.setStatus("reading " + name + "@" + actualSize + "/" + totalSize 
> + " ::host = " + hostName);
>   }
>   return Long.valueOf(actualSize);
> }
> {code}



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[jira] [Commented] (MAPREDUCE-7089) ReadMapper.doIO hangs with user misconfigured inputs

2018-12-26 Thread Sharath Chalya nagaraju (JIRA)


[ 
https://issues.apache.org/jira/browse/MAPREDUCE-7089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16729230#comment-16729230
 ] 

Sharath Chalya nagaraju commented on MAPREDUCE-7089:


For this, we can check if the bufferSize is greater than 0, if not throw 
IllegalArgument Exception

> ReadMapper.doIO hangs with user misconfigured inputs
> 
>
> Key: MAPREDUCE-7089
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7089
> Project: Hadoop Map/Reduce
>  Issue Type: Bug
>  Components: client, test
>Affects Versions: 2.5.0
>Reporter: John Doe
>Priority: Minor
>
> When a user configures the bufferSize to be 0, the while loop in 
> TestDFSIO$ReadMapper.doIO function hangs endlessly.
> This is because the loop stride, curSize is always 0, making the loop index 
> actualSize always less than the upper bound totalSize.
> Here is the code snippet.
> {code:java}
> int bufferSize = DEFAULT_BUFFER_SIZE;
> for(int i = 0; i < args.length; i++) { // parse command line
>   ...
>   else if (args[i].equals("-bufferSize")) {
>   bufferSize = Integer.parseInt(args[++i]);
>   }
>   ...
> }
> public Long doIO(Reporter reporter, String name, long totalSize) throws 
> IOException {
>   InputStream in = (InputStream)this.stream;
>   long actualSize = 0;
>   while (actualSize < totalSize) {
>     int curSize = in.read(buffer, 0, bufferSize);
>     if(curSize < 0) break;
>     actualSize += curSize;
>     reporter.setStatus("reading " + name + "@" + actualSize + "/" + totalSize 
> + " ::host = " + hostName);
>   }
>   return Long.valueOf(actualSize);
> }
> {code}



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