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MYSQL database slave support [message #164998]

Wed, 13 April 2011 16:35

eclipsewebmaster

Messages: 46
Registered: November 2009
Location: Ottawa, Ontario, Canada

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I'm preparing to move fudforum onto our database cluster, but it currently lacks slave support.

Attached is a rough patch (Against 3.0.2) that seems to cover the most of it. I tie into FUD_OPT_4 for Use Slave Yes/no. The slave algorithm essentially sends all SELECT queries to the slave, except a) if SELECT /* USE MASTER */ is specified in the query, or b) if db_locked() since that assumes a transaction is taking place.

It would be nice to query the slave to see if it's lagged, but for Bugzilla I typically do that with a shell script and it works quite well, so I'll likely do the same here.

Note: I have not tested this with mysqli.

Attachment: patch.txt
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[Message index]

		MYSQL database slave support By: eclipsewebmaster on Wed, 13 April 2011 16:35
		Re: MYSQL database slave support By: naudefj on Thu, 14 April 2011 16:35
		Re: MYSQL database slave support By: eclipsewebmaster on Fri, 15 April 2011 11:15
		Re: MYSQL database slave support By: naudefj on Fri, 22 April 2011 05:57
		Re: MYSQL database slave support By: eclipsewebmaster on Mon, 09 May 2011 12:26
		Re: MYSQL database slave support By: naudefj on Mon, 09 May 2011 12:57
		Re: MYSQL database slave support By: eclipsewebmaster on Mon, 09 May 2011 15:45
		Re: MYSQL database slave support By: naudefj on Tue, 10 May 2011 03:02
		Re: MYSQL database slave support By: eclipsewebmaster on Tue, 10 May 2011 10:59
		Re: MYSQL database slave support By: naudefj on Tue, 10 May 2011 16:14
		Re: MYSQL database slave support By: naudefj on Thu, 12 May 2011 10:31
		Re: MYSQL database slave support By: eclipsewebmaster on Fri, 13 May 2011 11:48
		Re: MYSQL database slave support By: eclipsewebmaster on Mon, 16 May 2011 10:05
		Re: MYSQL database slave support By: Ernesto on Tue, 17 May 2011 03:05
		Re: MYSQL database slave support By: naudefj on Tue, 17 May 2011 04:45
		Re: MYSQL database slave support By: naudefj on Tue, 19 July 2011 07:31
		Re: MYSQL database slave support By: eclipsewebmaster on Sat, 23 July 2011 08:49
		Re: MYSQL database slave support By: ew on Mon, 13 May 2013 17:44
		Re: MYSQL database slave support By: naudefj on Mon, 13 May 2013 17:47
		Re: MYSQL database slave support By: naudefj on Sat, 27 July 2013 09:23

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