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Posted to issues@hive.apache.org by "Hive QA (Jira)" <ji...@apache.org> on 2020/02/29 11:50:00 UTC
[jira] [Commented] (HIVE-21971) HS2 leaks classloader due to
`ReflectionUtils::CONSTRUCTOR_CACHE` with temporary functions + GenericUDF
[ https://issues.apache.org/jira/browse/HIVE-21971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17048286#comment-17048286 ]
Hive QA commented on HIVE-21971:
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| (x) *{color:red}-1 overall{color}* |
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|| 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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m 58s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 2s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 42s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 3m 57s{color} | {color:blue} ql in master has 1531 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 57s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 24s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 4s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 4s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 43s{color} | {color:red} ql: The patch generated 1 new + 72 unchanged - 0 fixed = 73 total (was 72) {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} findbugs {color} | {color:green} 4m 3s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 57s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 16s{color} | {color:red} The patch generated 2 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 25m 35s{color} | {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Optional Tests | asflicense javac javadoc findbugs checkstyle compile |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-20889/dev-support/hive-personality.sh |
| git revision | master / 2a7344a |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-20889/yetus/diff-checkstyle-ql.txt |
| asflicense | http://104.198.109.242/logs//PreCommit-HIVE-Build-20889/yetus/patch-asflicense-problems.txt |
| modules | C: ql U: ql |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-20889/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> HS2 leaks classloader due to `ReflectionUtils::CONSTRUCTOR_CACHE` with temporary functions + GenericUDF
> -------------------------------------------------------------------------------------------------------
>
> Key: HIVE-21971
> URL: https://issues.apache.org/jira/browse/HIVE-21971
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 2.3.4
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Critical
> Attachments: HIVE-21971.1.patch, HIVE-21971.2.patch, HIVE-21971.3.patch
>
>
> https://issues.apache.org/jira/browse/HIVE-10329 helped in moving away from hadoop's ReflectionUtils constructor cache issue (https://issues.apache.org/jira/browse/HADOOP-10513).
> However, there are corner cases where hadoop's {{ReflectionUtils}} is in use and this causes gradual build up of memory in HS2.
> I have observed this in Hive 2.3. But the codepath in master for this has not changed much.
> Easiest way to repro would be to add a temp function which extends {{GenericUDF}}. In {{FunctionRegistry::cloneGenericUDF,}} this would
> end up using {{org.apache.hadoop.util.ReflectionUtils.newInstance}} which in turn lands up in COSNTRUCTOR_CACHE of ReflectionUtils.
> {noformat}
> CREATE TEMPORARY FUNCTION dummy AS 'com.hive.test.DummyGenericUDF' USING JAR 'file:///home/test/udf/dummy.jar';
> select dummy();
> at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:107)
> at org.apache.hadoop.hive.ql.exec.FunctionRegistry.cloneGenericUDF(FunctionRegistry.java:1353)
> at org.apache.hadoop.hive.ql.exec.FunctionInfo.getGenericUDF(FunctionInfo.java:122)
> at org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.getXpathOrFuncExprNodeDesc(TypeCheckProcFactory.java:983)
> at org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.process(TypeCheckProcFactory.java:1359)
> at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
> at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:105)
> at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:89)
> at org.apache.hadoop.hive.ql.lib.ExpressionWalker.walk(ExpressionWalker.java:76)
> at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:120)
> {noformat}
> Note: Reflection based invocation of hadoop's {{ReflectionUtils::clear}} was removed in 2.x.
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