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TezQA commented on TEZ-4067: ---------------------------- | (/) *{color:green}+1 overall{color}* | \\ \\ || 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} master Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 19s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 31s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 55s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 59s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 39s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 1s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 19s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 57s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 55s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 55s{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 36s{color} | {color:orange} tez-dag: The patch generated 18 new + 380 unchanged - 3 fixed = 398 total (was 383) {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} 1m 55s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 1s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 49s{color} | {color:green} tez-api in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m 51s{color} | {color:green} tez-dag in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 38s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 22m 27s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=19.03.5 Server=19.03.5 Image:yetus/tez:d4a62deee | | JIRA Issue | TEZ-4067 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12986826/TEZ-4067.008.patch | | Optional Tests | dupname asflicense javac javadoc unit findbugs checkstyle compile | | uname | Linux d422d992da1c 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 | master / 47f0f35 | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_222 | | findbugs | v3.0.1 | | checkstyle | https://builds.apache.org/job/PreCommit-TEZ-Build/205/artifact/out/diff-checkstyle-tez-dag.txt | | Test Results | https://builds.apache.org/job/PreCommit-TEZ-Build/205/testReport/ | | Max. process+thread count | 235 (vs. ulimit of 5500) | | modules | C: tez-api tez-dag U: . | | Console output | https://builds.apache.org/job/PreCommit-TEZ-Build/205/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Tez Speculation decision is calculated on each update by the dispatcher > ----------------------------------------------------------------------- > > Key: TEZ-4067 > URL: https://issues.apache.org/jira/browse/TEZ-4067 > Project: Apache Tez > Issue Type: Improvement > Reporter: Ahmed Hussein > Assignee: Ahmed Hussein > Priority: Minor > Attachments: TEZ-4067.001.patch, TEZ-4067.002.patch, > TEZ-4067.003.patch, TEZ-4067.004.patch, TEZ-4067.005.patch, > TEZ-4067.006.patch, TEZ-4067.007.patch, TEZ-4067.008.patch > > > LegacySpeculator is an object field in VertexImpl. Therefore, all events are > handled synchronously by the caller (dispatcher). This implies the following: > # the dispatcher spends long time executing updateStatus as it needs to > check the runtime estimation of the tezAttempts within the vertex. > # the speculator is per stage: lunching a speculation may not the optimum > decision. Ideally, based on resources, speculated tasks should be the ones > with slowest progress. > # the time between speculation is skewed because there is a big delay for > the dispatcher to complete a full cycle. Also, speculation will be more > aggressive compared to MR because MR waits for > "soonest.retry.after.speculate" whenever a task is speculated. On the other > hand, Tez speculates more tasks as it processes stages in parallel. > -- This message was sent by Atlassian Jira (v8.3.4#803005)