[Users] Hardware reboot and database connection problems

[Kirill Korotaev]

Paul,

make sure your VE doesn't expirience resource shortages
(check failcnt column in /proc/user_beancounters).

next, check that mysql is shutdown gracefully in VE.
For this you can check whether manual mysql and/or VE stop
before node reboot helps.

Thanks,
Kirill

>   Hi Guys,
> 
> I have a serious problem occurring on my VPS when there is a hardware 
> reboot (as opposed to individual VPS reboot).
> 
> My java application runs under Tomcat and connects to MySQL.
> 
> I have installed MySQL 5 and use this. Both tomcat and mysql are 
> installed under /usr/local/
> 
> When the hardware reboots, there are connectivity issues with my 
> database, the application seems unable to connect to MySQL under certain 
> circumstances, however the background thread that runs in my app CAN 
> connect, which leads to database synchronisation issues.
> 
> As a result I have to login via SSH and reboot the VE once the node has 
> booted.
> 
> What could be the root cause of this and what can be done to help.
> 
> Many Thanks
> Paul
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