[ https://issues.apache.org/jira/browse/HBASE-20636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623029#comment-16623029 ]
Hadoop QA commented on HBASE-20636: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 12s{color} | {color:blue} Docker mode activated. {color} | || || || || {color:brown} Prechecks {color} || | {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m 0s{color} | {color:green} Patch does not have any anti-patterns. {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 9 new or modified test files. {color} | || || || || {color:brown} master Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 25s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 5m 11s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 3m 37s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m 22s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 4m 16s{color} | {color:green} branch has no errors when building our shaded downstream artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 9s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 23s{color} | {color:green} master 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} 5m 7s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 3m 35s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 3m 35s{color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m 14s{color} | {color:red} hbase-server: The patch generated 1 new + 227 unchanged - 8 fixed = 228 total (was 235) {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} shadedjars {color} | {color:green} 4m 13s{color} | {color:green} patch has no errors when building our shaded downstream artifacts. {color} | | {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 11m 10s{color} | {color:green} Patch does not cause any errors with Hadoop 2.7.4 or 3.0.0. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 2s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 22s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m 10s{color} | {color:green} hbase-client in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green}134m 21s{color} | {color:green} hbase-server in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 16m 57s{color} | {color:green} hbase-mapreduce in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 4s{color} | {color:green} hbase-it in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 1m 34s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}211m 51s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:b002b0b | | JIRA Issue | HBASE-20636 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12940699/HBASE-20636.master.004.patch | | Optional Tests | asflicense javac javadoc unit findbugs shadedjars hadoopcheck hbaseanti checkstyle compile | | uname | Linux 3f98dac15d12 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27 10:45:36 UTC 2018 x86_64 GNU/Linux | | Build tool | maven | | Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/component/dev-support/hbase-personality.sh | | git revision | master / ddd30a2241 | | maven | version: Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z) | | Default Java | 1.8.0_181 | | findbugs | v3.1.0-RC3 | | checkstyle | https://builds.apache.org/job/PreCommit-HBASE-Build/14467/artifact/patchprocess/diff-checkstyle-hbase-server.txt | | Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/14467/testReport/ | | Max. process+thread count | 5048 (vs. ulimit of 10000) | | modules | C: hbase-client hbase-server hbase-mapreduce hbase-it U: . | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/14467/console | | Powered by | Apache Yetus 0.7.0 http://yetus.apache.org | This message was automatically generated. > Introduce two bloom filter type : ROWPREFIX and ROWPREFIX_DELIMITED > ------------------------------------------------------------------- > > Key: HBASE-20636 > URL: https://issues.apache.org/jira/browse/HBASE-20636 > Project: HBase > Issue Type: New Feature > Components: HFile, regionserver, scan > Reporter: Guangxu Cheng > Assignee: Guangxu Cheng > Priority: Major > Attachments: HBASE-20636.master.001.patch, > HBASE-20636.master.002.patch, HBASE-20636.master.003.patch, > HBASE-20636.master.004.patch > > > As we all know, HBase uses BloomFilter(ROW and ROWCOL) to filter unnecessary > files to improve read performance. But they only support Get and do not > support Scan. > In our company(Tencent), many users need to scan all rows with the same > prefix, such as Tencent Game. Game user's some operational record will be > written into HBase, each game user will have a lot of records, the rowkey is > constructed as userid+'#'+timestamps. So we can scan all records for a given > user for a specified period. > For this scenario, we designed the prefix Bloom filter. If the startRow and > stopRow of the Scan has a valid common prefix, the scan will be allowed to > use BloomFilter to filter files which will enhance the performance of the > scan. > Now, this feature has been running on our cluster over a year, and scan > performance for this scenario has been improved by more than one times than > before. -- This message was sent by Atlassian JIRA (v7.6.3#76005)