Thread Name: _at_end

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

Thread Name: _at_end

Aaron Purvis-2
The last few days our lasso 8.6.3/Centos servers have seen sudden spikes in
Thread Name: _at_end

This also seems to coincide with a sudden spike in MySQL database
connection counts and drops. The error log shows a large number of: "Lost
connection to MySQL server during query".

The error log will show a few hundred of these messages, but the MySQL log
only shows a couple of dozen actual queries. There don't seem to be any
corresponding large or slow queries.

Does anyone happen to know what the thread "_at_end" is or could be? I've
never seen it before and I'm unable to find anything in my searching.

Thank you!


*Aaron M. Purvis*
Chief Technology Officer


*Instructional Technologies, Inc.*14511 NE 13th Ave.
Vancouver, WA 98685
Direct: 360-831-0585
Main: 360-576-5976 x108
www.instructiontech.net
[hidden email] <[hidden email]>

#############################################################

This message is sent to you because you are subscribed to
  the mailing list Lasso [hidden email]
Official list archives available at http://www.lassotalk.com
To unsubscribe, E-mail to: <[hidden email]>
Send administrative queries to  <[hidden email]>
Reply | Threaded
Open this post in threaded view
|

Re: Thread Name: _at_end

Bil Corry-3
It’s the thread that executes all remaining tasks at the end of the page rendering.

Lasso internally will sometimes execute tasks using it (file_serve for example) and you can also add items into the thread.

Some custom logging will use it and page timers, in case you’re running someone’s debugging code.

Not sure why it’s having issues, but seems related to MySQL availability.


- Bil

> On Jul 1, 2019, at 3:39 PM, Aaron Purvis <[hidden email]> wrote:
>
> The last few days our lasso 8.6.3/Centos servers have seen sudden spikes in
> Thread Name: _at_end
>
> This also seems to coincide with a sudden spike in MySQL database
> connection counts and drops. The error log shows a large number of: "Lost
> connection to MySQL server during query".
>
> The error log will show a few hundred of these messages, but the MySQL log
> only shows a couple of dozen actual queries. There don't seem to be any
> corresponding large or slow queries.
>
> Does anyone happen to know what the thread "_at_end" is or could be? I've
> never seen it before and I'm unable to find anything in my searching.
>
> Thank you!
>
>
> *Aaron M. Purvis*
> Chief Technology Officer
>
>
> *Instructional Technologies, Inc.*14511 NE 13th Ave.
> Vancouver, WA 98685
> Direct: 360-831-0585
> Main: 360-576-5976 x108
> www.instructiontech.net
> [hidden email] <[hidden email]>
>
> #############################################################
>
> This message is sent to you because you are subscribed to
>  the mailing list Lasso [hidden email]
> Official list archives available at http://www.lassotalk.com
> To unsubscribe, E-mail to: <[hidden email]>
> Send administrative queries to  <[hidden email]>

#############################################################

This message is sent to you because you are subscribed to
  the mailing list Lasso [hidden email]
Official list archives available at http://www.lassotalk.com
To unsubscribe, E-mail to: <[hidden email]>
Send administrative queries to  <[hidden email]>