MySQL Server has gone away

Hi all,

I'm getting the below error message whenever I try to use Open() or Openchild() in the code.
I have set the wait_timeout on the MySQL server that I'm using to 31536000 which should be sufficient.
This only happens after the system is idle for more than 6 minutes.

Has anyone experienced this before?

Any help appreciated

Thanks
Sarah



Error at line 15 of Global Procedure GPU_nGetParentGroupID process ('WDGPU' component).
HReadSeekFirst function called.
native MySQL access error.
Error Number = 22

The following error was returned by the <212.56.158.249> database:
Error number = <2006>.
Error message:
MySQL server has gone away

----- Technical Information -----

Project : Net
Component : WDGPU

WL call:
Process of 'Global Procedure GPU_nGetParentGroupID' (SET_GPU.GPU_nGetParentGroupID), line 15, thread 0
'HReadSeekFirst' function, syntax 0

What happened?
native MySQL access error.
Error Number = 22

The following error was returned by the <212.56.158.249> database:
Error number = <2006>.
Error message:
MySQL server has gone away

Error code: 73001
Level: fatal error
WD55 error code: 3001

Dump of the error of 'wd210hf.dll' module (21.0.124.0).
Identifier of detailed information (.err): 72801
Debugging information:
IEWDMSQL=100.23
Module=<WDMSQL>
Version=<21.0.8.0>
Client layer: C:\My Projects 19\Net\Exe\Net\libmysql.dll
Provider: WinDevMySQL
User: blyeUsers
Data source: 212.56.158.249
Database: blyea
Unicode supported: 1
Page code of WL: 1252
Page code of the connection: 1252
Query run on the <212.56.158.249> server, <blyea> database, <blyeUsers> user:
SELECT `IDGroup`,`Name`,`ParentGroupID` FROM `GPU_Group` WHERE `IDGroup`=12 ORDER BY 1 LIMIT 100
Fonction (7,12)
Additional Information:
EIT_BASECODE : <2006>
EIT_INFOCLIENT : <5.1.45>
EIT_INFOSERVEUR : <5.6.27-log>
EIT_NATIVECODE : <22>
EIT_LOGICALTABLENAME : <GPU_Group>
EIT_PILEWL :
Global Procedure GPU_nGetParentGroupID (SET_GPU.GPU_nGetParentGroupID), line 15
Global Procedure GPU_nCalculateDefaultStatusRecursiveGroup (SET_GPU.GPU_nCalculateDefaultStatusRecursiveGroup), line 30
Global Procedure GPU_nCalculateDefaultStatusUser (SET_GPU.GPU_nCalculateDefaultStatusUser), line 34
Global Procedure GPU_nGetDefaultStatus (SET_GPU.GPU_nGetDefaultStatus), line 24
Global Procedure GPU_nGetElementStatus (SET_GPU.GPU_nGetElementStatus), line 22
Global Procedure GPU_nGetStatusUserElement (SET_GPU.GPU_nGetStatusUserElement), line 19
EIT_COMPOSANT :
WDGPU
EIT_DATEHEURE : 22/02/2017 11:36:04
EIT_TYPE_WDFILE : <7>
EIT_IDCODE : <458752>