[ https://issues.apache.org/jira/browse/TEZ-4207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17166999#comment-17166999 ]
TezQA commented on TEZ-4207: ---------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 30s{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:blue}0{color} | {color:blue} prototool {color} | {color:blue} 0m 0s{color} | {color:blue} prototool was not available. {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 26s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m 16s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 56s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 54s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 4s{color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 0m 55s{color} | {color:blue} Used deprecated FindBugs config; considering switching to SpotBugs. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 52s{color} | {color:red} tez-runtime-library in master has 1 extant findbugs warnings. {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 9s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 34s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 32s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m 32s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 32s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 27s{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} javadoc {color} | {color:green} 0m 38s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 41s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 45s{color} | {color:green} tez-api in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 4m 44s{color} | {color:green} tez-runtime-library in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 17s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 21m 48s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://builds.apache.org/job/PreCommit-TEZ-Build/502/artifact/out/Dockerfile | | JIRA Issue | TEZ-4207 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/13008648/TEZ-4207.1.patch | | Optional Tests | dupname asflicense javac javadoc unit spotbugs findbugs checkstyle compile cc prototool | | uname | Linux e13884a52f6b 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/tez.sh | | git revision | master / 2d7c60849 | | Default Java | Private Build-1.8.0_252-8u252-b09-1~18.04-b09 | | findbugs | https://builds.apache.org/job/PreCommit-TEZ-Build/502/artifact/out/branch-findbugs-tez-runtime-library-warnings.html | | Test Results | https://builds.apache.org/job/PreCommit-TEZ-Build/502/testReport/ | | Max. process+thread count | 401 (vs. ulimit of 5500) | | modules | C: tez-api tez-runtime-library U: . | | Console output | https://builds.apache.org/job/PreCommit-TEZ-Build/502/console | | versions | git=2.17.1 maven=3.6.0 findbugs=3.0.1 | | Powered by | Apache Yetus 0.12.0 https://yetus.apache.org | This message was automatically generated. > Provide approximate number of input records to be processed in > UnorderedKVInput > ------------------------------------------------------------------------------- > > Key: TEZ-4207 > URL: https://issues.apache.org/jira/browse/TEZ-4207 > Project: Apache Tez > Issue Type: Bug > Reporter: Rajesh Balamohan > Priority: Major > Attachments: TEZ-4207.1.patch, TEZ-4207.wip.patch > > > There are cases when broadcasted data is loaded into hashtable in upstream > applications (e.g Hive). Apps tends to predict the number of entries in the > hashtable diligently, but there are cases where these estimates can be very > complicated at compile time. > > Tez can help in such cases, by providing "approximate number of input records > counter", to be processed in UnorderedKVInput. This is to avoid expensive > rehash when hashtable sizes are not estimated correctly. It would be good to > start with broadcast first and then to move on to unordered partitioned case > later. > > This would help in predicting the number of entries at runtime & can get > better estimates for hashtable. -- This message was sent by Atlassian Jira (v8.3.4#803005)