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https://issues.apache.org/jira/browse/HIVE-26426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Work on HIVE-26426 started by Abhay.
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> Avoid StringIndexOutOfBoundsException in canCBOHandleAst() method.
> ------------------------------------------------------------------
>
> Key: HIVE-26426
> URL: https://issues.apache.org/jira/browse/HIVE-26426
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Abhay
> Assignee: Abhay
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> The call to canHandleQbForCbo() can result in an
> StringIndexOutOfBoundsException. The assumption in the code is that the msg
> can only be null and we handle that but the msg can also be an empty string
> if the *verbose* is set to false. This can happen if INFO Logging is not
> enabled. We need to handle that case.
> [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java#L913]
> Here is the stack trace for reference:
> {noformat}
> FAILED: StringIndexOutOfBoundsException String index out of range: -2
> 15:10:24.192 [HiveServer2-Background-Pool: Thread-305] ERROR
> org.apache.hadoop.hive.ql.Driver - FAILED: StringIndexOutOfBoundsException
> String index out of range: -2
> java.lang.StringIndexOutOfBoundsException: String index out of range: -2
> at java.lang.String.substring(String.java:1967)
> at
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.canCBOHandleAst(CalcitePlanner.java:996)
>
> at
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:572)
>
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:13063)
> at
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:472)
>
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:314)
> at org.apache.hadoop.hive.ql.Compiler.analyze(Compiler.java:223)
> at org.apache.hadoop.hive.ql.Compiler.compile(Compiler.java:105)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:201)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:650)
> at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:596)
> at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:590)
> at
> org.apache.hadoop.hive.ql.reexec.ReExecDriver.compileAndRespond(ReExecDriver.java:127)
> at
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:206)
> at
> org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork$1.run(SQLOperation.java:336)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)
> at
> org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork.run(SQLOperation.java:358)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750){noformat}
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