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<DIV><FONT face=Verdana color=#000080 size=2>Yes, i meant this like
you.</FONT></DIV>
<DIV><FONT color=#000080>Using memcached can avoid disk I/O. </FONT><FONT
color=#000080>I guess that is why he used memcached on localhost.</FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080>sorry , my english very pool.</FONT></DIV>
<DIV><FONT face=Verdana color=#000080 size=2></FONT> </DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT face=Verdana color=#000080 size=2></FONT> </DIV>
<DIV><FONT face=Verdana color=#c0c0c0 size=2>2008-08-01 </FONT></DIV><FONT
face=Verdana color=#000080 size=2>
<HR style="WIDTH: 122px; HEIGHT: 2px" align=left SIZE=2>
</FONT>
<DIV><FONT face=Verdana color=#c0c0c0 size=2><SPAN>Chancey</SPAN>
</FONT></DIV><FONT face=Verdana color=#000080 size=2>
<HR>
</FONT>
<DIV><FONT face=Verdana size=2><STRONG>发件人:</STRONG> Igor Sysoev </FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>发送时间:</STRONG> 2008-08-01 14:39:19
</FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>收件人:</STRONG> nginx@sysoev.ru
</FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>抄送:</STRONG> </FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>主题:</STRONG> Re: Re: Memcached module --
unix domain socket support? (too many TIME_WAITs..) </FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>
<DIV>On Fri, Aug 01, 2008 at 02:27:55PM +0800, Chancey wrote:</DIV>
<DIV> </DIV>
<DIV>> Maybe I/O is too high ? </DIV>
<DIV>> Use memcached can avoid this .</DIV>
<DIV> </DIV>
<DIV>Using local memcached means that all data can fit in memory, therefore</DIV>
<DIV>local filesystem data will be cached by OS VM and there will not be</DIV>
<DIV>high disk I/O.</DIV>
<DIV> </DIV>
<DIV>> ?????? Re: Memcached module -- unix domain socket support? (too many TIME_WAITs..) </DIV>
<DIV>> </DIV>
<DIV>> On Thu, Jul 31, 2008 at 09:54:03PM -0700, Kon Wilms wrote:</DIV>
<DIV>> </DIV>
<DIV>>
> I have a pool of memcached servers running on localhost with</DIV>
<DIV>>
> connection to nginx, feeding motion jpeg data out via static JPEGs to</DIV>
<DIV>>
> a flash application. The load is pretty high on the server because of</DIV>
<DIV>>
> this with each client running 3 GETs from memcached every second (i.e.</DIV>
<DIV>> > 3fps).</DIV>
<DIV>> > </DIV>
<DIV>>
> Nginx works fine, however, the problem I have is that thousands of</DIV>
<DIV>>
> TIME_WAITs are created from the memcached GET requests, which I would</DIV>
<DIV>>
> like to eliminate. I've already tuned the kernel but this has not</DIV>
<DIV>>
> reduced it enough to handle a couple thousand viewers on the server.</DIV>
<DIV>> > </DIV>
<DIV>>
> Is there any way to connect nginx's memcached module to memcached via</DIV>
<DIV>>
> unix domain socket or perhaps UDP, or any other ideas on how to fix</DIV>
<DIV>> > this problem?</DIV>
<DIV>> </DIV>
<DIV>> Adding unix socket support to ngx_http_memcached_module should be easy,</DIV>
<DIV>> but I'm not sure if memcached suppot unix sockets.</DIV>
<DIV>> </DIV>
<DIV>> BTW why do you serve local images from memcached ?</DIV>
<DIV>> It's better for both CPU and memory to serve them from local filesystem</DIV>
<DIV>> using sendfile.</DIV>
<DIV>> </DIV>
<DIV>> </DIV>
<DIV>> -- </DIV>
<DIV>> Igor Sysoev</DIV>
<DIV>> <A href="http://sysoev.ru/en/">http://sysoev.ru/en/</A></DIV>
<DIV> </DIV>
<DIV>-- </DIV>
<DIV>Igor Sysoev</DIV>
<DIV><A href="http://sysoev.ru/en/">http://sysoev.ru/en/</A></DIV>
<DIV> </DIV></FONT></DIV></BODY></HTML>