[ https://issues.apache.org/jira/browse/HADOOP-15206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16366339#comment-16366339 ]
genericqa commented on HADOOP-15206: ------------------------------------ | (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 1 new or modified test files. {color} | || || || || {color:brown} trunk Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m 23s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 17m 2s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 48s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m 15s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 48s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 15m 23s{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} 2m 13s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 17s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 15s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 12s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 13m 8s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 13m 8s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m 18s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m 5s{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} 10m 44s{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} 2m 26s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 29s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m 11s{color} | {color:green} hadoop-common in the patch passed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red}126m 38s{color} | {color:red} hadoop-mapreduce-client-jobclient in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 43s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}226m 57s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.mapreduce.v2.TestMRJobs | \\ \\ || Subsystem || Report/Notes || | Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:5b98639 | | JIRA Issue | HADOOP-15206 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12910782/HADOOP-15206.008.patch | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux 62fa7bbdb8e3 3.13.0-135-generic #184-Ubuntu SMP Wed Oct 18 11:55:51 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | trunk / da59acd | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_151 | | findbugs | v3.1.0-RC1 | | unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/14136/artifact/out/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-jobclient.txt | | Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/14136/testReport/ | | Max. process+thread count | 1363 (vs. ulimit of 5500) | | modules | C: hadoop-common-project/hadoop-common hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient U: . | | Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/14136/console | | Powered by | Apache Yetus 0.8.0-SNAPSHOT http://yetus.apache.org | This message was automatically generated. > BZip2 drops and duplicates records when input split size is small > ----------------------------------------------------------------- > > Key: HADOOP-15206 > URL: https://issues.apache.org/jira/browse/HADOOP-15206 > Project: Hadoop Common > Issue Type: Bug > Affects Versions: 2.8.3, 3.0.0 > Reporter: Aki Tanaka > Assignee: Aki Tanaka > Priority: Major > Attachments: HADOOP-15206-test.patch, HADOOP-15206.001.patch, > HADOOP-15206.002.patch, HADOOP-15206.003.patch, HADOOP-15206.004.patch, > HADOOP-15206.005.patch, HADOOP-15206.006.patch, HADOOP-15206.007.patch, > HADOOP-15206.008.patch > > > BZip2 can drop and duplicate record when input split file is small. I > confirmed that this issue happens when the input split size is between 1byte > and 4bytes. > I am seeing the following 2 problem behaviors. > > 1. Drop record: > BZip2 skips the first record in the input file when the input split size is > small > > Set the split size to 3 and tested to load 100 records (0, 1, 2..99) > {code:java} > 2018-02-01 10:52:33,502 INFO [Thread-17] mapred.TestTextInputFormat > (TestTextInputFormat.java:verifyPartitions(317)) - > splits[1]=file:/work/count-mismatch2/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/target/test-dir/TestTextInputFormat/test.bz2:3+3 > count=99{code} > > The input format read only 99 records but not 100 records > > 2. Duplicate Record: > 2 input splits has same BZip2 records when the input split size is small > > Set the split size to 1 and tested to load 100 records (0, 1, 2..99) > > {code:java} > 2018-02-01 11:18:49,309 INFO [Thread-17] mapred.TestTextInputFormat > (TestTextInputFormat.java:verifyPartitions(318)) - splits[3]=file > /work/count-mismatch2/hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/target/test-dir/TestTextInputFormat/test.bz2:3+1 > count=99 > 2018-02-01 11:18:49,310 WARN [Thread-17] mapred.TestTextInputFormat > (TestTextInputFormat.java:verifyPartitions(308)) - conflict with 1 in split 4 > at position 8 > {code} > > I experienced this error when I execute Spark (SparkSQL) job under the > following conditions: > * The file size of the input files are small (around 1KB) > * Hadoop cluster has many slave nodes (able to launch many executor tasks) > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org