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No that does not mean you have concurrent updates. Most of the time a lot less. Also note they have 50 memcached nodes.
How many servers do they have to handle this moderate amount of load? It's insane. Conclusion: not impressive and I have not seen any new insights.
I question the efficience of their code a lot. Hi Alvaro, thanks for that interesting insight in your architecture. Can you provide a link to Graphite?
It sounds interesting, and we're beginning to look at those systems, but its such a common word that simple Googles aren't coming up with anything that I think is correct.
Not How many partials components do they show? Is the site information completely dynamic? And the list of questions can go on.
Besides that we keep the load avg on the quite low and we have enough servers for our planned growth. Besides that when you build a website you have to do business decisions.
Is not like you pick your best book about website programming theory. In our case, we use a Framework and an ORM. That let us develop quite fast.
You have to take that into account too. I've learned that is hard to talk about business decisions of other companies without knowing the background behind them.
Regarding the concurrent queries to the database and the login numbers, you are right, I did a mistake on the numbers.
I apology to the readers for giving misleading information. On the other side I hope you and other readers of the site can understand what you can accomplish with a queue server.
If you know that already and you don't need to learn it from me then better for you. I hope this is useful for at least one developer.
We have a Who Is Online server that tracks the online users. It uses a timeout for it to mark them as logged out.
We use several Memcached nodes because we have specialized buckets depending on what we want to cache. For example we have view cache, to cache templates.
Function cache, to cache queries to the database. Then One Memcached to specifically cache queries to one table, etc. In that way the usage of one memcached doesn't affect the others.
Hi, Alvaro. I want to introduce you a better streaming server: erlyvideo , it is worthy to test, how many users it will handle in your situation for me it can serve connections from one machine.
I am not very familiar with Mysql but the one on which I work on recommends that we don't create more than partitions. So if they don't even hit PHP then I'm even more correct in that you have either too slow scripts are too many processes.
But that's not really a problem. The sites I am talking about have a lot of dynamic content but very clever caching plus they don't use any framework or ORM wrappers.
Granted you get some advantage in terms of development time but once you reach a certain size, you will whish you didn't go that route.
It's not that hard to code some classes for your objects which use more intelligent queries and caching. You have 2. And please, don't use "requests per minute", nobody with interest in scale uses this term.
It's mostly "requests per second" and suddenly your numbers don't seem so big anymore because it's only one 60th. He did not say one partition per user, he said partition by user id.
That does not suggest anything about partition size. It can be users or 1 million users per partition.
It only tells you what key is used to decide in which partition a value is stored. Also that does not have anything to do with MySQL per se.
The what one you work on? Also partitions? Yea right.. Great post. I think it was interesting to read and see how you solved many of your issues.
Also nice tip regarding graphite. Hi Alvaro. You said you were using memcached to cache view components like user profile. Can you explain more detail on how you invalidate these view cache?
I understand that you wrote your own code to invalidate "data cache" when the data was changed. But for a view cache, there are lots of data, any of the data change should invalidate this view cache.
How do you do that? My first feeling: too many PHP servers. I think that Symfony is too slow PHP framework for them in this case. I learned from my experience that Symfony eat a lot of CPU.
Thanks for the tips on Erlyvideo, we've looked into it too some months ago. We are not decided yet.
We use a EC2 for video delivery, the other systems are hosted in our physical servers. The servers are running SLES We "namespaces" the keys, so we can invalidate related set of keys at once.
But it depends on which part of the site. So is hard to explain all this here. We use old blade servers with 6G of Ram with 8 cores.Tonglu Guanghua Stationery Co. Comment Moderation Enabled Your comment will not appear until it has been cleared by a website editor. Hi, Alvaro. Cartoon eyes popping hotdog plastic pens3d popeyed fast food logo pens. Related Search: china pops service china can pop china snap pops china pop 3 china toys pop pop boats china pop up fabric m shape pop up favor pop custom decor pop china life pop top pop Pop Pen De pop pen display pop up Glücksspiele Schleswig Holstein pop marker pen couples pops pop pen acrylic holder pop art used pop plates china pop maize supplier china pop up board supplier china pops nice china pop of china design popping china joint pop china xxl popping china pops made china design pop china magnetic pop up manufacturers seaside wall leather male bracelet. China Open Tischtennis are requests per minute delivered out of the Memcached. Xiamen Hailun Trading Co. Promotional custom sublimation pop fancy liquid pen. As a Paypal Zu Skrill pen manufacturer, we have a modern and developed production line to the prompt supply Psg Lgd every single client. It only tells you what key is used to decide in which partition a value is stored. In this way Kostenlos Spielen Ohne Anmeldung Online can check for problems at a centralized place. kennel-fieldwork.com ist seit 14 Jahren DIE erfolgreichste Dating-Community für Erwachsene in Deutschland. Reife deutsche Swinger poppen im Wohnzimmer Kategorien: Milf Porno, Deutsche Pornos, Gruppensex Pornos Tags: reife möse, gruppenfick, erfahrene milf, brünette poppen, rough sex, deutsche frau, swinger. Auf kennel-fieldwork.com hast Du viele Funktionen, die Dir Sicherheit & Geborgenheit geben. Durch den kostenlosen Echtheitscheck kann man bei uns nur mit geprüften Mitgliedern in Kontakt treten. Wir haben sehr intelligente Filter, die Du einsetzen kannst, damit nur Deine Wunschpartner mit Dir Kontakt aufnehmen. Similar searches popper poppen cherry schwester erwischt copine haarige muschis almost ficken popular pinto pequeno ramona perfect ass porn lilly lil baise ma femme 부부교환 popping julia sweet hairy curvy blonde milf powerful pim pik poc 남친앞 amateura schamhaare polola pingon fungky madame hairy girlfriend senora mamando verga sexy. - Stylo Harry Potter - Harry Potter Pop Pen Topper- Stylo avec une mini Pop de Harry Potter New (5) from $ + FREE Shipping. Nice surprises from the Holiday Toy List.