Initial request to server extremely slow after longer periods of inactivity
opendaddy at hushmail.com
opendaddy at hushmail.com
Wed Apr 15 13:09:24 UTC 2015
Hi!
On 13. april 2015 at 9:33 AM, "Raimund Sacherer" <rs at logitravel.com> wrote:
>
>Yes, that could be, but you would be able to rule it out rather
>quickly, if you do not seem to get the system in the
>"unresponsive" state then I would execute them in a screen or tmux
>session so they are available for you to check out later. In this
>case a top won't do you much good and you have to use some form of
>vmstat or similar to check out what had happened (cpu, paging,
>interrupt storm, context switches, IO-wait, etc.). If none of
>those indicates problems, and the tcpdump does not reveal DNS
>problems it may be an issue with the VPS host (if you use a
>virtually shared hosted service).
Thanks man, I'll give that a go.
So basically I have to set up a crontab to run vmstat say once every 30 minutes?
O.D.
>
>Best
>Ray
>
>> Also, how can I do stuff like `traceroute` or `mtr` knowing
>beforehand that
>> the server is indeed unresponsive? Since it's only unresponsive
>on first
>> requests, if I send a request to check, things will have
>returned to normal
>> by the time I get to run those commands.
>
>> Thanks!
>
>> O.D.
>
>--
>
>--
>
>Raimund Sacherer
>Sistemas
>Agencia de Viajes Online
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