Hi again,
currently 0.14, 0.25, 0.27
I can not say what it was when the machine crashed on saturday. We had
the same situation a few days ago (4.5.2011 i think) when 50 nearly
parallel querys came from a newly set facebook-comment that linked to
shop 3. I have some statements of the technichian that analysed the
incident:
1) [Die Datenbank sortiert etwas und wird nicht fertig, vmtl. für eine
Ausgabe, dann der Neustart]
2) [Hier funktioniert PHP aufgrund von Speicherproblemen offenbar nicht
mehr richtig, offenbar zuviele gleichzeitige Verbindungen]
3) [Zum Zeitpunkt des Restarts liefen 451 Instanzen von verschiedenen
PHP-Skripten (welche, lässt sich leider nicht mehr ermitteln).]
4) [52 identische parallel gestellte Anfragen an den Server. Mglw. haben
diese Anfragen die Datenbank lahmgelegt, was einige Zeit später zur
Speicherknappheit führte]
we had quite heavy load (munin-graphs) and a sudden peak of
RAM-allocation wich led to RAM-shortage and finaly to Swaping a lot of
pages (sudden increase of swap-calls and inode-consumption)
After a few minutes and the restart of the box everything was fine
again. On this saturday a similar situation: Box running at 80 to 98%
load for quite a time already. and then munin shows the sudden rise of
commited RAM (shooting up to 4.15 GB) and then the rise of
Swap-consumption and inodes again. Result: no response of any shops. Not
even HTML-Files were delivered and no response to SSH-commands. REBOOT,
waiting a few minutes and everything was fine again - load returning to
more than 90% for a while, but the machine remained stable until now.
Best Regards /
Mit freundlichem Gruß,
Kai Gazmaga
VektorDesign - Online-Shops und Programmierung
Kai Gazmaga
Katharinenstraße 57
73 728 Esslingen Tel.: +49 711 - 25516226
Fax: +49 711 - 25518078
Mail: [email protected]
Web: www.vektordesign.de
Am 17.05.2011 09:41, schrieb Uwe Degenhardt:
> Hi Kai, with the 15k visitors a day I was refering
> to to forums-post you sent. Maybe it was misunderstandable.
> But you have plenty of variants in at least two shops.
> My guess is that those could cause the trouble before you upgraded.
> What is your average load if you type: "top"
> under linux ?
> Uwe
>
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>
>
> I am really surprised, that
> your virtual box is still running. ;-)
> Especially if you go with variants.
> I have had a customer recently with a lot of variants who alone
> almost crashed our shared hosting box. Although I have to admit, it
> was a 4.2.x
>
> I currently do no have 15k visitors a day!!! I am running around 1300
> to 1800 in 3 Main-Shops and a few additional visitors in 3 further
> shops. The XEN-Box had 1,5 GHz and 1.5 GB RAM (one core in the V-Box)
> on a quite up-to-date XEON-whatever-Host-Machine. I now upgraded to 4
> cores, 1.5 GHz each and 4 GB RAM in the V-Box to bridge the time until
> the decision for the dedicated hardware is made and the server is
> fully configured and available.
>
> I wait eagerly for the munin-results of the next days to see what
> happens with the upgraded system.
>
>
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