Bug #102506 Fix SpinMethod such that it works

• Submitted: 6 Feb 2021 18:27
• Modified: 16 Feb 2021 19:01
• Reporter: Mikael Ronström
• Status: Closed
• Category: MySQL Cluster: Cluster (NDB) storage engine
• Severity: S3 (Non-critical)
• Version: 8.0.23
• OS: Ubuntu
• CPU Architecture: Any

[6 Feb 2021 18:27] Mikael Ronström

Description:
SpinMethod doesn't work.
The problem is that it checks the string passed from config
using native_strcasecmp and this returns when equal and not the
opposite.

How to repeat:
Enable SpinMethod=DatabaseMachineSpinning and check if spinning happens
when running benchmark.

Suggested fix:
Change to check for == 0 instead != 0 for config parameter.

[8 Feb 2021 11:21] MySQL Verification Team

Hi Mikael,

Thanks for the report

All best
Bogdan

[16 Feb 2021 19:01] Jon Stephens

Documented fix as follows in the NDB 8.0.24 changelog:

    The value set for the SpinMethod data node configuration 
    parameter was ignored.

Closed.