[TriLUG] need consulting for LAMP server

Scott Lambdin via TriLUG trilug at trilug.org
Fri Jun 3 11:36:57 EDT 2016


One thing I have learned in my so called career is that a proper SQL person
can write far more efficient queries than us sysadmin types.  (okay, maybe
I should speak only for myself)

Maybe have the queries sanity checked?

--Scott

On Fri, Jun 3, 2016 at 8:30 AM, Ken MacKenzie via TriLUG <trilug at trilug.org>
wrote:

> Another monitoring tool to try out is glances.  It is a python script.  A
> pip install of it might be easiest.  Nice output and shows disk IO as part
> of its monitoring.
>
> Ken
>
> On Fri, Jun 3, 2016 at 7:09 AM, Ronald Kelley via TriLUG <
> trilug at trilug.org>
> wrote:
>
> > Is your DB setup for replication?  That could cause some issues during
> > heavy I/O.
> >
> >
> > Couple suggestions:
> >
> > During the busy time, run “iotop”, “htop”, and “nmon” in separate windows
> > so you can see them together at one time.  These should help pinpoint
> where
> > the contention lies.  Also, suggest you creating a non-DB related HTML
> page
> > to see if you can load just a text page during the busy time.
> >
> > Try to narrow down the issue to CPU, RAM, Disk, or Network.  While 2x SAS
> > drives sounds good, you might be hitting some sort of disk IO wait issue
> > causing the DB to slow down.
> >
> >
> >
> >
> >
> --
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-- 

Eat like you give a damn.  Go vegan.


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