[IMPALA-6008] Creating a UDF from a shared library with a .ll extension crashes Impala

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 2.8.0, Impala 2.9.0, Impala 2.10.0
• Fix Version/s: Impala 3.0, Impala 2.12.0
• Component/s: Backend
• Labels: codegen crash
• Target Version: Impala 2.12.0
• Epic Color: ghx-label-8
• Assignee: Anuj Phadke
• Reporter: Tim Armstrong
• Created: 03/Oct/17 01:17
• Updated: 23/Feb/18 22:51
• Resolved: 23/Feb/18 22:21

Description

create function foo (string, string) returns string location '/test-warehouse/thisIsReallyASharedObject.ll' symbol='MyAwesomeUdf';

A create function statement like the one above can crash Impala if the file is actually an ELF shared object.

I encountered this on a cluster I have access to. I haven't confirmed whether any .so can crash Impala or whether it requires a .so with specific characteristics.

Issue Links

• relates to: IMPALA-6038 Use LLVM diagnostic handler to check and log LLVM errors wherever needed