Hi, I understand the network impact. So if we already considered the network issue, and still want to increase the MTU size, is there an option to turn on bigger MTU size?
Thanks! Dogni ----- Original Message ---- From: Tomash Brechko <[EMAIL PROTECTED]> To: [email protected] Sent: Saturday, May 3, 2008 9:11:26 AM Subject: Re: memcached udp datagram size and noreply option support On Sat, May 03, 2008 at 08:25:35 -0700, Dongni Chen wrote: > I am currently running memcached 1.2.4 and want to use "Set" with > "noreply" option. But seems it doesn't support. Shall I move to > 1.2.5 to get this feature? Yes, noreply is supported starting with memcached 1.2.5. > I am also use udp mode, and found out even for a data size that is > about 1.9k, I am getting 2 datagrams. I used memcached -vv, and it > says when in udp mode, the sendbuf is 268435456. Maximum Transfer Unit (MTU) is still limited to some smaller value, likely 1500 bytes. Though it's possible to increase it up to 64KB, doing so will likely have strong negative effect on your network. In other words, better to leave it as is, and deal with multiple packets, or switch back to TCP. If you are trying to save on TCP connection establishing, it would be better to think about ways to cache and reuse the connection. -- Tomash Brechko ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
