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https://issues.apache.org/jira/browse/DRILL-7297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Volodymyr Vysotskyi reassigned DRILL-7297:
------------------------------------------
Assignee: Volodymyr Vysotskyi
> Query hangs in planning stage when Error is thrown
> --------------------------------------------------
>
> Key: DRILL-7297
> URL: https://issues.apache.org/jira/browse/DRILL-7297
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.16.0
> Reporter: Volodymyr Vysotskyi
> Assignee: Volodymyr Vysotskyi
> Priority: Major
>
> Query hangs in the planning stage when Error (not OOM or AssertionError) is
> thrown during query planning. After canceling the query it will stay in
> Cancellation Requested state.
> Such error may be thrown due to the mistake in the code, including UDF. Since
> the user may provide custom UDFs, Drill should be able to handle such cases
> also.
> Steps to reproduce this issue:
> 1. Create UDF which throws Error in either {{eval()}} or {{setup()}} method
> (instructions how to create custom UDF may be found
> [here|https://drill.apache.org/docs/tutorial-develop-a-simple-function/].
> 2. Register custom UDF which throws an error (instruction is
> [here|https://drill.apache.org/docs/adding-custom-functions-to-drill-introduction/]).
> 3. Run the query with this UDF.
> After submitting the query, the following stack trace is printed:
> {noformat}
> Exception in thread "drill-executor-1" java.lang.Error
> at
> org.apache.drill.contrib.function.FunctionExample.setup(FunctionExample.java:19)
> at
> org.apache.drill.exec.expr.fn.interpreter.InterpreterEvaluator.evaluateFunction(InterpreterEvaluator.java:139)
> at
> org.apache.drill.exec.expr.fn.interpreter.InterpreterEvaluator$EvalVisitor.visitFunctionHolderExpression(InterpreterEvaluator.java:355)
> at
> org.apache.drill.exec.expr.fn.interpreter.InterpreterEvaluator$EvalVisitor.visitFunctionHolderExpression(InterpreterEvaluator.java:204)
> at
> org.apache.drill.common.expression.FunctionHolderExpression.accept(FunctionHolderExpression.java:53)
> at
> org.apache.drill.exec.expr.fn.interpreter.InterpreterEvaluator.evaluateConstantExpr(InterpreterEvaluator.java:70)
> at
> org.apache.drill.exec.planner.logical.DrillConstExecutor.reduce(DrillConstExecutor.java:152)
> at
> org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressionsInternal(ReduceExpressionsRule.java:620)
> at
> org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressions(ReduceExpressionsRule.java:541)
> at
> org.apache.calcite.rel.rules.ReduceExpressionsRule$ProjectReduceExpressionsRule.onMatch(ReduceExpressionsRule.java:288)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:212)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:643)
> at
> org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:339)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.transform(DefaultSqlHandler.java:430)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.transform(DefaultSqlHandler.java:370)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToRawDrel(DefaultSqlHandler.java:250)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:319)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:177)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.getQueryPlan(DrillSqlWorker.java:226)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.convertPlan(DrillSqlWorker.java:124)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:90)
> at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:593)
> at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:276)
> 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:748)
> {noformat}
> 4. Check that query is still in progress state, cancel query.
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