[DRILL-5044] Fix retry logic to handle VersionMismatchException by not deleting jars in remote UDFs area

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9.0
• Fix Version/s: 1.10.0
• Component/s: Functions - Drill
• Labels: ready-to-commit
• Assignee: Arina Ielchiieva
• Reporter: Roman Kulyk
• Reviewer: Paul Rogers
• Created: 16/Nov/16 13:43
• Updated: 16/Dec/16 19:13
• Resolved: 13/Dec/16 00:45

Description

I tried to register 21 jars simultaneously (property 'udf.retry-attempts' = 30) and not all jars were registered. As I see in output, all function were registered and /staging directory was empty, but not all of jars were moved into /registry directory.

For example, after simultaneously registration I saw "The following UDFs in jar test-1.1.jar have been registered: [test1(VARCHAR-REQUIRED)" message, but this jar was not in /registry directory. When I tried to run function test1, I got this error: "Error: SYSTEM ERROR: SqlValidatorException: No match found for function signature test1(<CHARACTER>)". And when I tried to reregister this jar, I got "Jar with test-1.1.jar name has been already registered".

Issue Links

• links to: GitHub Pull Request #669