<HTML dir=ltr><HEAD><TITLE>Re: [DRBD-user] DRBD is deadly slow.</TITLE>
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<DIV dir=ltr><FONT face=Verdana color=#000000 size=2>Hi,</FONT></DIV>
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<DIV dir=ltr><FONT face=Verdana size=2>Thank you for the reply. As it is production environment, we can not change it to newer version without testing in test bid.</FONT></DIV>
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<DIV dir=ltr><FONT face=Verdana size=2>To achieve the MySQL high availability we are using DRBD. when load was not there on mysql, it is running really fast, when we put some load on that server it become very very slow (it has to handle minimum 4-million requests per day).</FONT></DIV>
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<DIV dir=ltr><FONT face=Verdana size=2>Thanks,</FONT></DIV>
<DIV dir=ltr><FONT face=Verdana size=2>BalReddy</FONT></DIV>
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<FONT face=Tahoma size=2><B>From:</B> drbd-user-bounces@lists.linbit.com on behalf of Lars Ellenberg<BR><B>Sent:</B> Tue 3/30/2010 10:30 PM<BR><B>To:</B> drbd-user@lists.linbit.com<BR><B>Subject:</B> Re: [DRBD-user] DRBD is deadly slow.<BR></FONT><BR></DIV>
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<P><FONT size=2>On Tue, Mar 30, 2010 at 03:50:39PM +0200, Stefan Seifert wrote:<BR>> > 2010/3/30 Balreddy Medipally <balreddy.m@imimobile.com><BR>> ><BR>> > > I am running DRBD 8.3.0 on RedHat Enterprise Linux AS 4.8 64-bit<BR><BR>You do realize that 8.3.0 is 15 month old,<BR>we are at 8.3.7, 8.3.8 coming soon?<BR><BR>> > > OS for production purpose. MySQL works superfast in when load was not<BR>> > > there, when load was there it become deadly slow. Can any one please<BR>> > > help me to make it faster.<BR><BR>What exactly is "super fast" and "deadly slow"?<BR>If you cannot quantify it, you cannot tune it.<BR><BR>> But in any case the webinar and some good benchmarking should be the<BR>> first step.<BR><BR>That's right ;)<BR><BR><BR>--<BR>: Lars Ellenberg<BR>: LINBIT | Your Way to High Availability<BR>: DRBD/HA support and consulting <A href="http://www.linbit.com/">http://www.linbit.com</A><BR><BR>DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.<BR>__<BR>please don't Cc me, but send to list -- I'm subscribed<BR>_______________________________________________<BR>drbd-user mailing list<BR>drbd-user@lists.linbit.com<BR><A href="http://lists.linbit.com/mailman/listinfo/drbd-user">http://lists.linbit.com/mailman/listinfo/drbd-user</A><BR></FONT></P></DIV></BODY></HTML>