[ https://issues.apache.org/jira/browse/HIVE-19821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517216#comment-16517216 ]
Hive QA commented on HIVE-19821: -------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || || || || || {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:brown} master Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 49s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 21s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 3m 12s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 51s{color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 32s{color} | {color:blue} common in master has 62 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 37s{color} | {color:blue} itests/hive-unit in master has 2 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 43s{color} | {color:blue} itests/util in master has 55 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m 10s{color} | {color:blue} ql in master has 2280 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 42s{color} | {color:blue} service in master has 48 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 24s{color} | {color:blue} spark-client in master has 10 extant Findbugs warnings. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 23s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 27s{color} | {color:red} util in the patch failed. {color} | | {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 32s{color} | {color:red} ql in the patch failed. {color} | | {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 22s{color} | {color:red} service in the patch failed. {color} | | {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 27s{color} | {color:red} util in the patch failed. {color} | | {color:red}-1{color} | {color:red} compile {color} | {color:red} 0m 22s{color} | {color:red} service in the patch failed. {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 27s{color} | {color:red} util in the patch failed. {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 0m 22s{color} | {color:red} service in the patch failed. {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 17s{color} | {color:red} itests/hive-unit: The patch generated 20 new + 0 unchanged - 0 fixed = 20 total (was 0) {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 43s{color} | {color:red} ql: The patch generated 46 new + 112 unchanged - 2 fixed = 158 total (was 114) {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 10s{color} | {color:red} spark-client: The patch generated 7 new + 26 unchanged - 2 fixed = 33 total (was 28) {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} xml {color} | {color:green} 0m 1s{color} | {color:green} The patch has no ill-formed XML file. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 24s{color} | {color:red} util in the patch failed. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 4m 22s{color} | {color:red} ql generated 2 new + 2280 unchanged - 0 fixed = 2282 total (was 2280) {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 20s{color} | {color:red} service in the patch failed. {color} | | {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 58s{color} | {color:red} ql generated 4 new + 96 unchanged - 4 fixed = 100 total (was 100) {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 13s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 41m 42s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | FindBugs | module:ql | | | Class org.apache.hadoop.hive.ql.exec.spark.RemoteProcessHiveSparkClientImpl defines non-transient non-serializable instance field clientProtocol In RemoteProcessHiveSparkClientImpl.java:instance field clientProtocol In RemoteProcessHiveSparkClientImpl.java | | | Synchronization performed on java.util.concurrent.atomic.AtomicBoolean in org.apache.hadoop.hive.ql.session.SessionState.launchRemoteProcess() At SessionState.java:org.apache.hadoop.hive.ql.session.SessionState.launchRemoteProcess() At SessionState.java:[line 327] | \\ \\ || Subsystem || Report/Notes || | Optional Tests | asflicense javac javadoc findbugs checkstyle compile xml | | uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux | | Build tool | maven | | Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-11923/dev-support/hive-personality.sh | | git revision | master / 2394e40 | | Default Java | 1.8.0_111 | | findbugs | v3.0.0 | | mvninstall | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-mvninstall-itests_util.txt | | mvninstall | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-mvninstall-ql.txt | | mvninstall | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-mvninstall-service.txt | | compile | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-compile-itests_util.txt | | compile | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-compile-service.txt | | javac | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-compile-itests_util.txt | | javac | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-compile-service.txt | | checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/diff-checkstyle-itests_hive-unit.txt | | checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/diff-checkstyle-ql.txt | | checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/diff-checkstyle-spark-client.txt | | findbugs | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-findbugs-itests_util.txt | | findbugs | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/new-findbugs-ql.html | | findbugs | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/patch-findbugs-service.txt | | javadoc | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus/diff-javadoc-javadoc-ql.txt | | modules | C: common itests/hive-unit itests/util ql service spark-client U: . | | Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-11923/yetus.txt | | Powered by | Apache Yetus http://yetus.apache.org | This message was automatically generated. > Distributed HiveServer2 > ----------------------- > > Key: HIVE-19821 > URL: https://issues.apache.org/jira/browse/HIVE-19821 > Project: Hive > Issue Type: New Feature > Components: HiveServer2 > Reporter: Sahil Takiar > Assignee: Sahil Takiar > Priority: Major > Attachments: HIVE-19821.1.WIP.patch, HIVE-19821.2.WIP.patch, > HIVE-19821_ Distributed HiveServer2.pdf > > > HS2 deployments often hit OOM issues due to a number of factors: (1) too many > concurrent connections, (2) query that scan a large number of partitions have > to pull a lot of metadata into memory (e.g. a query reading thousands of > partitions requires loading thousands of partitions into memory), (3) very > large queries can take up a lot of heap space, especially during query > parsing. There are a number of other factors that cause HiveServer2 to run > out of memory, these are just some of the more commons ones. > Distributed HS2 proposes to do all query parsing, compilation, planning, and > execution coordination inside a dedicated container. This should > significantly decrease memory pressure on HS2 and allow HS2 to scale to a > larger number of concurrent users. > For HoS (and I think Hive-on-Tez) this just requires moving all query > compilation, planning, etc. inside the application master for the > corresponding Hive session. > The main benefit here is isolation. A poorly written Hive query cannot bring > down an entire HiveServer2 instance and force all other queries to fail. -- This message was sent by Atlassian JIRA (v7.6.3#76005)