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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} 0m 21s{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 7 new or modified test files. {color} | || || || || {color:brown} trunk Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m 13s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 17m 46s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 7s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m 53s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 6m 58s{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} 9m 44s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 7m 2s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 33s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m 50s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 14m 40s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 14m 40s{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 3m 0s{color} | {color:orange} root: The patch generated 19 new + 1195 unchanged - 8 fixed = 1214 total (was 1203) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 7m 30s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} shellcheck {color} | {color:green} 0m 0s{color} | {color:green} There were no new shellcheck issues. {color} | | {color:green}+1{color} | {color:green} shelldocs {color} | {color:green} 0m 39s{color} | {color:green} There were no new shelldocs issues. {color} | | {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 1s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply {color} | | {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m 2s{color} | {color:green} The patch has no ill-formed XML file. {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 12m 15s{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} 10m 44s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 7m 1s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} unit {color} | {color:red} 8m 37s{color} | {color:red} hadoop-common in the patch failed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 84m 59s{color} | {color:red} hadoop-hdfs in the patch failed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 82m 4s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch failed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 5m 37s{color} | {color:green} hadoop-mapreduce-client-core in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 10m 25s{color} | {color:green} hadoop-mapreduce-client-app in the patch passed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red}118m 32s{color} | {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 1m 18s{color} | {color:red} hadoop-dynamometer-infra in the patch failed. {color} | | {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 1m 25s{color} | {color:red} The patch generated 1 ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}453m 39s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.fs.viewfs.TestViewFsTrash | | | hadoop.hdfs.server.balancer.TestBalancer | | | hadoop.hdfs.server.namenode.TestRedudantBlocks | | | hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairSchedulerPreemption | | | hadoop.tools.dynamometer.TestDynamometerInfra | \\ \\ || Subsystem || Report/Notes || | Docker | Client=19.03.4 Server=19.03.4 Image:yetus/hadoop:104ccca9169 | | JIRA Issue | MAPREDUCE-7208 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12984303/MAPREDUCE-7208.002.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle xml shellcheck shelldocs | | uname | Linux 811e933bad65 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 | trunk / bd498ba | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_222 | | shellcheck | v0.4.6 | | findbugs | v3.1.0-RC1 | | checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/diff-checkstyle-root.txt | | whitespace | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/whitespace-eol.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt | | unit | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/patch-unit-hadoop-tools_hadoop-dynamometer_hadoop-dynamometer-infra.txt | | Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/testReport/ | | asflicense | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/artifact/out/patch-asflicense-problems.txt | | Max. process+thread count | 4770 (vs. ulimit of 5500) | | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager 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 hadoop-tools/hadoop-dynamometer/hadoop-dynamometer-infra U: . | | Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/7679/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-7208.001.patch, MAPREDUCE-7208.002.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