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Posted to yarn-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2018/11/13 22:32:00 UTC
[jira] [Commented] (YARN-9019) Ratio calculation of
ResourceCalculator implementations could return NaN
[ https://issues.apache.org/jira/browse/YARN-9019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16685837#comment-16685837 ]
Hadoop QA commented on YARN-9019:
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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 18s{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} 24m 9s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 40s{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 44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 12m 11s{color} | {color:green} branch has no errors when building and testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 21s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 42s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 35s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 35s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 25s{color} | {color:orange} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common: The patch generated 2 new + 7 unchanged - 2 fixed = 9 total (was 9) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 39s{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 11s{color} | {color:green} patch has no errors when building and testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 24s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 38s{color} | {color:red} hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common generated 1 new + 4189 unchanged - 0 fixed = 4190 total (was 4189) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m 27s{color} | {color:green} hadoop-yarn-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 27s{color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 60m 49s{color} | {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | YARN-9019 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12948026/YARN-9019.001.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux f07e31dbd5c1 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 | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / fcbd205 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC1 |
| checkstyle | https://builds.apache.org/job/PreCommit-YARN-Build/22528/artifact/out/diff-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt |
| javadoc | https://builds.apache.org/job/PreCommit-YARN-Build/22528/artifact/out/diff-javadoc-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt |
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/22528/testReport/ |
| Max. process+thread count | 413 (vs. ulimit of 10000) |
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common |
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/22528/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> Ratio calculation of ResourceCalculator implementations could return NaN
> ------------------------------------------------------------------------
>
> Key: YARN-9019
> URL: https://issues.apache.org/jira/browse/YARN-9019
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Szilard Nemeth
> Assignee: Szilard Nemeth
> Priority: Major
> Attachments: YARN-9019.001.patch
>
>
> Found out that ResourceCalculator.ratio (with implementors DefaultResourceCalculator and DominantResourceCalculator) can produce NaN (Not-A-Number) as a result.
> This is because [IEEE 754|http://grouper.ieee.org/groups/754/] defines {{1.0 / 0.0}} as Infinity and {{-1.0 / 0.0}} as -Infinity and {{0.0 / 0.0}} as NaN, see here: [https://stackoverflow.com/a/14138032/1106893]
> I think it's very dangerous to rely on NaN can be returned from ratio calculations and this could have side-effects.
> When ratio calculates the result and if both the numerator and the denominator is zero, we should use 0 as a result, I think.
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