Date: Tue, 25 Feb 2003 01:57:23 +0100 (CET) From: Martin Blapp <mb@imp.ch> To: Alexander Langer <alex@big.endian.de> Cc: hackers@FreeBSD.org Subject: Re: mysql endless loops Message-ID: <20030225014854.X1778@levais.imp.ch>
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Hi Alex, This is a well known bug. You should consider to use linuxthreads. I hope it will be usable for 4.8R. Else look for patches at http://people.freebsd.org/~mbr/patches I run now all production servers with linuxthreads and hangs have gone. This document here describes the main problems with mysql on FreeBSD linked with libc_r: Short version of problems with native threading support (userland threads): 1. Non-thread safe DNS Lookups 2. Unfair Scheduling 3. High Load 4. No SMP Support 5. Missing Locks http://jeremy.zawodny.com/blog/archives/000203.html Martin Martin Blapp, <mb@imp.ch> <mbr@FreeBSD.org> ------------------------------------------------------------------ ImproWare AG, UNIXSP & ISP, Zurlindenstrasse 29, 4133 Pratteln, CH Phone: +41 61 826 93 00 Fax: +41 61 826 93 01 PGP: <finger -l mbr@freebsd.org> PGP Fingerprint: B434 53FC C87C FE7B 0A18 B84C 8686 EF22 D300 551E ------------------------------------------------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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