[IMPALA-7822] Crash in repeat() constructing strings > 1GB

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 2.3.0, Impala 2.5.0, Impala 2.4.0, Impala 2.6.0, Impala 2.7.0, Impala 2.8.0, Impala 2.9.0, Impala 2.10.0, Impala 2.11.0, Impala 3.0, Impala 3.1.0
• Fix Version/s: Impala 3.1.0
• Component/s: Backend
• Labels: crash
• Target Version: Impala 3.1.0
• Epic Color: ghx-label-4
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 06/Nov/18 21:31
• Updated: 19/Nov/18 10:45
• Resolved: 07/Nov/18 23:45

Description

select repeat('x', 1024 * 1024 * 1024 * 1024);

#0  0x0000000004551aa3 in google_breakpad::ExceptionHandler::SignalHandler(int, siginfo_t*, void*) ()
#1  0x00007f72cdc0f362 in ?? () from /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server/libjvm.so
#2  0x00007f72cdc138b9 in JVM_handle_linux_signal ()
   from /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server/libjvm.so
#3  0x00007f72cdc06f78 in ?? () from /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server/libjvm.so
#4  <signal handler called>
#5  0x00007f72cab8a06c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00000000030e19da in impala::StringFunctions::Repeat (context=0x721f800, str=..., n=...)
    at be/src/exprs/string-functions-ir.cc:100
#7  0x0000000003145c32 in impala::ScalarFnCall::InterpretEval<impala_udf::StringVal> (
    this=0xaf2cb40, eval=0xd26ccc0, row=0x0) at be/src/exprs/scalar-fn-call.cc:485
#8  0x000000000312bd85 in impala::ScalarFnCall::GetStringVal (this=0xaf2cb40, eval=0xd26ccc0,
    row=0x0) at be/src/exprs/scalar-fn-call.cc:599
#9  0x00000000030da116 in impala::ScalarExprEvaluator::GetValue (this=0xd26ccc0, expr=..., row=0x0)
    at be/src/exprs/scalar-expr-evaluator.cc:299
#10 0x00000000030d9da5 in impala::ScalarExprEvaluator::GetValue (this=0xd26ccc0, row=0x0)
    at be/src/exprs/scalar-expr-evaluator.cc:250
#11 0x0000000001fc59bc in Java_org_apache_impala_service_FeSupport_NativeEvalExprsWithoutRow (
    env=0xd25b1e0, caller_class=0x7f724d523280, thrift_expr_batch=0x7f724d523298,
    thrift_query_ctx_bytes=0x7f724d523290) at be/src/service/fe-support.cc:237