[ https://issues.apache.org/jira/browse/HBASE-17339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15857712#comment-15857712 ]
Hadoop QA commented on HBASE-17339: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 16s {color} | {color:blue} Docker mode activated. {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 2 new or modified test files. {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s {color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 39s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 48s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 40s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 23s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 18s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 39s {color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s {color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 53s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 47s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 47s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 41s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 23s {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:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 1m 31s {color} | {color:red} The patch causes 17 errors with Hadoop v2.6.1. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 3m 3s {color} | {color:red} The patch causes 17 errors with Hadoop v2.6.2. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 4m 36s {color} | {color:red} The patch causes 17 errors with Hadoop v2.6.3. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 6m 7s {color} | {color:red} The patch causes 17 errors with Hadoop v2.6.4. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 7m 39s {color} | {color:red} The patch causes 17 errors with Hadoop v2.6.5. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 9m 10s {color} | {color:red} The patch causes 17 errors with Hadoop v2.7.1. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 10m 44s {color} | {color:red} The patch causes 17 errors with Hadoop v2.7.2. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 12m 17s {color} | {color:red} The patch causes 17 errors with Hadoop v2.7.3. {color} | | {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 13m 51s {color} | {color:red} The patch causes 17 errors with Hadoop v3.0.0-alpha2. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 45s {color} | {color:red} hbase-server generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 42s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 20s {color} | {color:green} hbase-client in the patch passed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 17m 39s {color} | {color:red} hbase-server in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 15s {color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 48m 49s {color} | {color:black} {color} | \\ \\ || Reason || Tests || | FindBugs | module:hbase-server | | | Suspicious comparison of Long references in org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.recheckTSMonotonicity(InternalScan) At HRegion.java:in org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.recheckTSMonotonicity(InternalScan) At HRegion.java:[line 6429] | | Failed junit tests | hadoop.hbase.io.TestHeapSize | \\ \\ || Subsystem || Report/Notes || | Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:8d52d23 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12851585/HBASE-17339-V03.patch | | JIRA Issue | HBASE-17339 | | Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck hbaseanti checkstyle compile | | uname | Linux 40f83aad96a8 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 13:48:03 UTC 2016 x86_64 x86_64 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 / d8f3c6c | | Default Java | 1.8.0_121 | | findbugs | v3.0.0 | | findbugs | https://builds.apache.org/job/PreCommit-HBASE-Build/5626/artifact/patchprocess/new-findbugs-hbase-server.html | | unit | https://builds.apache.org/job/PreCommit-HBASE-Build/5626/artifact/patchprocess/patch-unit-hbase-server.txt | | unit test logs | https://builds.apache.org/job/PreCommit-HBASE-Build/5626/artifact/patchprocess/patch-unit-hbase-server.txt | | Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/5626/testReport/ | | modules | C: hbase-client hbase-server U: . | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/5626/console | | Powered by | Apache Yetus 0.3.0 http://yetus.apache.org | This message was automatically generated. > Scan-Memory-First Optimization for Get Operations > ------------------------------------------------- > > Key: HBASE-17339 > URL: https://issues.apache.org/jira/browse/HBASE-17339 > Project: HBase > Issue Type: Improvement > Reporter: Eshcar Hillel > Assignee: Eshcar Hillel > Attachments: HBASE-17339-V01.patch, HBASE-17339-V02.patch, > HBASE-17339-V03.patch, HBASE-17339-V03.patch > > > The current implementation of a get operation (to retrieve values for a > specific key) scans through all relevant stores of the region; for each store > both memory components (memstores segments) and disk components (hfiles) are > scanned in parallel. > We suggest to apply an optimization that speculatively scans memory-only > components first and only if the result is incomplete scans both memory and > disk. -- This message was sent by Atlassian JIRA (v6.3.15#6346)