Re: Caching of Queries
От | Joshua D. Drake |
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Тема | Re: Caching of Queries |
Дата | |
Msg-id | 41536C4A.2010702@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Caching of Queries ("Josh Berkus" <josh@agliodbs.com>) |
Ответы |
Re: Caching of Queries
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Список | pgsql-performance |
I would second this. You need to be running a connection pool and probably multiple web servers inSorry, I meant 30,000 with 300 connections - not 3,000. The 300 connections / second is realistic, if not underestimated. As is the nature of our site (realtime information about online gaming), there's a huge fan base and as a big upset happens, we'll do 50,000 page views in a span of 3-5 minutes.First, your posts show no evidences of the CS storm bug. Second, 300 *new* connections a second is a lot. Each new connection requires a significant amount of both database and OS overhead. This is why all the other web developers use a connection pool.
front of that. You are talking about a huge amount of connections in that amount of time.
Josh Drake
In fact, I wouldn't be surprised if your lockups are on the OS level, even; I don't recall that you cited what OS you're using, but I can imagine locking up Linux 2.4 trying to spawn 300 new processes a second. --Josh ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
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