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Hadoop QA commented on HBASE-17819: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 35s{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:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s{color} | {color:red} The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color} | || || || || {color:brown} master Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 14s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m 50s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 11s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 36s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 6m 33s{color} | {color:green} branch has no errors when building our shaded downstream artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 42s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 49s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 14s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m 52s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 14s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 14s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 35s{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} shadedjars {color} | {color:green} 4m 50s{color} | {color:green} patch has no errors when building our shaded downstream artifacts. {color} | | {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 20m 26s{color} | {color:green} Patch does not cause any errors with Hadoop 2.6.5 2.7.4 or 3.0.0. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m 4s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 47s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 20s{color} | {color:green} hbase-common in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green}107m 22s{color} | {color:green} hbase-server in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 37s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}162m 2s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:eee3b01 | | JIRA Issue | HBASE-17819 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12915945/HBASE-17819_new_V2.patch | | Optional Tests | asflicense javac javadoc unit findbugs shadedjars hadoopcheck hbaseanti checkstyle compile | | uname | Linux c7f739743b20 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9 14:43:09 UTC 2018 x86_64 GNU/Linux | | Build tool | maven | | Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh | | git revision | master / ad47c2daf4 | | maven | version: Apache Maven 3.5.3 (3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-24T19:49:05Z) | | Default Java | 1.8.0_162 | | findbugs | v3.1.0-RC3 | | Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/12107/testReport/ | | Max. process+thread count | 4601 (vs. ulimit of 10000) | | modules | C: hbase-common hbase-server U: . | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/12107/console | | Powered by | Apache Yetus 0.7.0 http://yetus.apache.org | This message was automatically generated. > Reduce the heap overhead for BucketCache > ---------------------------------------- > > Key: HBASE-17819 > URL: https://issues.apache.org/jira/browse/HBASE-17819 > Project: HBase > Issue Type: Sub-task > Components: BucketCache > Reporter: Anoop Sam John > Assignee: Anoop Sam John > Priority: Critical > Fix For: 2.0.0 > > Attachments: HBASE-17819_V1.patch, HBASE-17819_V2.patch, > HBASE-17819_V3.patch, HBASE-17819_new_V1.patch, HBASE-17819_new_V1.patch, > HBASE-17819_new_V2.patch > > > We keep Bucket entry map in BucketCache. Below is the math for heapSize for > the key , value into this map. > BlockCacheKey > --------------- > String hfileName - Ref - 4 > long offset - 8 > BlockType blockType - Ref - 4 > boolean isPrimaryReplicaBlock - 1 > Total = align(12 (Object) + 17 )= 32 > BucketEntry > ------------ > int offsetBase - 4 > int length - 4 > byte offset1 - 1 > byte deserialiserIndex - 1 > long accessCounter - 8 > BlockPriority priority - Ref - 4 > volatile boolean markedForEvict - 1 > AtomicInteger refCount - 16 + 4 > long cachedTime - 8 > Total = align(12 (Object) + 51) = 64 > ConcurrentHashMap Map.Entry - 40 > blocksByHFile ConcurrentSkipListSet Entry - 40 > Total = 32 + 64 + 80 = 176 > For 10 million blocks we will end up having 1.6GB of heap size. > This jira aims to reduce this as much as possible -- This message was sent by Atlassian JIRA (v7.6.3#76005)