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From:Rick James Date:October 25 2012 11:27pm
Subject:RE: MySQL Monitor and Percona
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A guess -- MEM is issuing that on a timed basis, but the query is running longer than the
time period.  Can you slow MEM down?
Meanwhile, file a bug report.  You paid too much money for this kind of junior mistake.

From: Sabika M [mailto:sabika.makhdoom@stripped]
Sent: Thursday, October 25, 2012 4:15 PM
To: Rick James
Cc: mysql@stripped
Subject: Re: MySQL Monitor and Percona

I don't have the full anymore. It had a few hundred of these. I had issues a drop database
that hung which made me run show processlist. Sadly, I did not check the processlist
beforehand.

| 101189 | monitor   | localhost:42585 | NULL  | Query   |   4079 | NULL                  
                  | SHOW /*!50000 ENGINE */ INNODB STATUS |         0 |             0 |   
     1 |
| 101194 | monitor   | localhost:42589 | NULL  | Query   |   4069 | NULL                  
                  | SHOW /*!50000 ENGINE */ INNODB STATUS |         0 |             0 |   
     1 |
| 101204 | monitor   | localhost:42599 | NULL  | Query   |   4049 | executing             
                  | SHOW /*!50000 GLOBAL */ STATUS        |         0 |             0 |   
     1 |
| 101214 | monitor   | localhost:42608 | NULL  | Query   |   4029 | executing             
                  | SHOW /*!50000 GLOBAL */ STATUS        |         0 |             0 |   
     1 |

 wait_timeout                                      | 28800
max_connections                         | 5000

Since I sent this email, we have checked network connectivity and fixed a typo in the
hostname.

On Thu, Oct 25, 2012 at 1:56 PM, Rick James
<rjames@stripped<mailto:rjames@stripped>> wrote:
What does SHOW FULL PROCESSLIST say?

What values do you have for
max_connections
wait_timeout (GLOBAL version)

> -----Original Message-----
> From: Sabika M
> [mailto:sabika.makhdoom@stripped<mailto:sabika.makhdoom@stripped>]
> Sent: Thursday, October 25, 2012 11:44 AM
> To: mysql@stripped<mailto:mysql@stripped>
> Subject: MySQL Monitor and Percona
>
> We are in the process of switching to percona binaries of MySQL . I am
> using Percona 5.5.27 and monitoring the MySQL server with the MySQL
> Enterprise monitor. It starts up fine, but after a while I end up with
> MySQL monitor connections stacking up until the server becomes pretty
> much useless. This happens only on servers running percona. Anyone else
> have this issue? Or heard of it? Anything helps!


Thread
MySQL Monitor and PerconaSabika M25 Oct
  • RE: MySQL Monitor and PerconaRick James25 Oct
    • Re: MySQL Monitor and PerconaSabika M25 Oct
      • RE: MySQL Monitor and PerconaRick James25 Oct
  • Re: MySQL Monitor and PerconaLaurynas Biveinis26 Oct