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https://issues.apache.org/jira/browse/HIVE-22901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17050361#comment-17050361
]
Hive QA commented on HIVE-22901:
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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
1s{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} 10m
44s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
17s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
16s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
36s{color} | {color:blue} common in master has 63 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
14s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
18s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
17s{color} | {color:red} common: The patch generated 37 new + 376 unchanged - 0
fixed = 413 total (was 376) {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} 0m
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
15s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m
15s{color} | {color:red} The patch generated 3 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 14m 36s{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-20932/dev-support/hive-personality.sh
|
| git revision | master / 9cdf97f |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-20932/yetus/diff-checkstyle-common.txt
|
| asflicense |
http://104.198.109.242/logs//PreCommit-HIVE-Build-20932/yetus/patch-asflicense-problems.txt
|
| modules | C: common U: common |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-20932/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Variable substitution can lead to OOM on circular references
> ------------------------------------------------------------
>
> Key: HIVE-22901
> URL: https://issues.apache.org/jira/browse/HIVE-22901
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 3.1.2
> Reporter: Daniel Voros
> Assignee: Daniel Voros
> Priority: Major
> Attachments: HIVE-22901.1.patch
>
>
> {{SystemVariables#substitute()}} is dealing with circular references between
> variables by only doing the substitution 40 times by default. If the
> substituted part is sufficiently large though, it's possible that the
> substitution will produce a string bigger than the heap size within the 40
> executions.
> Take the following test case that fails with OOM in current master (third
> round of execution would need 10G heap, while running with only 2G):
> {code}
> @Test
> public void testSubstitute() {
> String randomPart = RandomStringUtils.random(100_000);
> String reference = "${hiveconf:myTestVariable}";
> StringBuilder longStringWithReferences = new StringBuilder();
> for(int i = 0; i < 10; i ++) {
> longStringWithReferences.append(randomPart).append(reference);
> }
> SystemVariables uut = new SystemVariables();
> HiveConf conf = new HiveConf();
> conf.set("myTestVariable", longStringWithReferences.toString());
> uut.substitute(conf, longStringWithReferences.toString(), 40);
> }
> {code}
> Produces:
> {code}
> java.lang.OutOfMemoryError: Java heap space
> at java.util.Arrays.copyOf(Arrays.java:3332)
> at
> java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:124)
> at
> java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:448)
> at java.lang.StringBuilder.append(StringBuilder.java:136)
> at
> org.apache.hadoop.hive.conf.SystemVariables.substitute(SystemVariables.java:110)
> at
> org.apache.hadoop.hive.conf.SystemVariablesTest.testSubstitute(SystemVariablesTest.java:27)
> {code}
> We should check the size of the substituted query and bail out earlier.
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