[ https://issues.apache.org/jira/browse/MAPREDUCE-7208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16967017#comment-16967017 ]
Hadoop QA commented on MAPREDUCE-7208: -------------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 15m 26s{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 4 new or modified test files. {color} | || || || || {color:brown} branch-2.10 Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 55s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 12m 1s{color} | {color:green} branch-2.10 passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 23s{color} | {color:green} branch-2.10 passed with JDK v1.7.0_95 {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 12s{color} | {color:green} branch-2.10 passed with JDK v1.8.0_222 {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 41s{color} | {color:green} branch-2.10 passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 42s{color} | {color:green} branch-2.10 passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 9s{color} | {color:green} branch-2.10 passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 11s{color} | {color:green} branch-2.10 passed with JDK v1.7.0_95 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 3s{color} | {color:green} branch-2.10 passed with JDK v1.8.0_222 {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 16s{color} | {color:red} hadoop-mapreduce-client-app in the patch failed. {color} | | {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 23s{color} | {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} | | {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 49s{color} | {color:red} hadoop-mapreduce-client in the patch failed with JDK v1.7.0_95. {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 49s{color} | {color:red} hadoop-mapreduce-client in the patch failed with JDK v1.7.0_95. {color} | | {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 42s{color} | {color:red} hadoop-mapreduce-client in the patch failed with JDK v1.8.0_222. {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 42s{color} | {color:red} hadoop-mapreduce-client in the patch failed with JDK v1.8.0_222. {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 37s{color} | {color:orange} hadoop-mapreduce-project/hadoop-mapreduce-client: The patch generated 2 new + 678 unchanged - 2 fixed = 680 total (was 680) {color} | | {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 18s{color} | {color:red} hadoop-mapreduce-client-app in the patch failed. {color} | | {color:red}-1{color} | {color:red} mvnsite {color} | {color:red} 0m 24s{color} | {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green} The patch has no whitespace issues. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 16s{color} | {color:red} hadoop-mapreduce-client-app in the patch failed. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 21s{color} | {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} | | {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 14s{color} | {color:red} hadoop-mapreduce-client-app in the patch failed with JDK v1.7.0_95. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 52s{color} | {color:green} the patch passed with JDK v1.8.0_222 {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 52s{color} | {color:green} hadoop-mapreduce-client-core in the patch passed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 16s{color} | {color:red} hadoop-mapreduce-client-app in the patch failed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 23s{color} | {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 22s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 51m 33s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=19.03.4 Server=19.03.4 Image:yetus/hadoop:1c7ae55d7d3 | | JIRA Issue | MAPREDUCE-7208 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12984832/MAPREDUCE-7208-branch-2.10.001.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux e5b532109874 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 | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | branch-2.10 / 969b0c7 | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_222 | | Multi-JDK versions | /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 /usr/lib/jvm/java-8-openjdk-amd64:1.8.0_222 | | findbugs | v3.0.0 | | mvninstall | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-mvninstall-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt | | mvninstall | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-mvninstall-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt | | compile | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.7.0_95.txt | | javac | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.7.0_95.txt | | compile | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.8.0_222.txt | | javac | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-compile-hadoop-mapreduce-project_hadoop-mapreduce-client-jdk1.8.0_222.txt | | checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client.txt | | mvnsite | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-mvnsite-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt | | mvnsite | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-mvnsite-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt | | findbugs | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt | | findbugs | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt | | javadoc | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-javadoc-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app-jdk1.7.0_95.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/artifact/out/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt | | Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/testReport/ | | Max. process+thread count | 267 (vs. ulimit of 5500) | | modules | C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient U: hadoop-mapreduce-project/hadoop-mapreduce-client | | Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7684/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Tuning TaskRuntimeEstimator > ---------------------------- > > Key: MAPREDUCE-7208 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7208 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Reporter: Ahmed Hussein > Assignee: Ahmed Hussein > Priority: Minor > Attachments: MAPREDUCE-7208-branch-2.10.001.patch, > MAPREDUCE-7208.001.patch, MAPREDUCE-7208.002.patch, MAPREDUCE-7208.003.patch, > MAPREDUCE-7208.004.patch, smoothing-exponential.md > > > By default, MR uses LegacyTaskRuntimeEstimator to get an estimate of the > runtime. The estimator does not adjust dynamically to the progress rate of > the tasks. On the other hand, the existing alternative > "ExponentiallySmoothedTaskRuntimeEstimator" behavior in unpredictable. > > There are several dimensions to improve the exponential implementation: > # Exponential shooting needs a warmup period. Otherwise, the estimate will > be affected by the initial values. > # Using a single smoothing factor (Lambda) does not work well for all the > tasks. To increase the level of smoothing across the majority of tasks, we > need to give a range of flexibility to dynamically adjust the smoothing > factor based on the history of the task progress. > # Design wise, it is better to separate between the statistical model and > the MR interface. We need to have a way to evaluate estimators statistically, > without the need to run MR. For example, an estimator can be evaluated as a > black box by using a stream of raw data as input and testing the accuracy of > the generated stream of estimates. > # The exponential estimator speculates frequently and fails to detect > slowing tasks. It does not detect slowing tasks. As a result, a taskAttempt > that does not do any progress won't trigger a new speculation. > > The file [^smoothing-exponential.md] describes how Simple Exponential > smoothing factor works. > > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org