<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><BR><DIV><DIV>On Apr 19, 2007, at 13:38 , <A href="mailto:andrew@flypublishing.com">andrew@flypublishing.com</A> wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Monaco" size="2" style="font: 10.0px Monaco">Would it be possible to then use this distributed memory cache as if</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Monaco" size="2" style="font: 10.0px Monaco">it were internal memory and access each key many many times.<SPAN class="Apple-converted-space"> </SPAN>Say,</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Monaco" size="2" style="font: 10.0px Monaco">like 500 key hits every second.<SPAN class="Apple-converted-space"> </SPAN>Or, would network latency make this</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Monaco" size="2" style="font: 10.0px Monaco">impractical?</FONT></P> </BLOCKQUOTE></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>How often do these things change? If they don't change frequently, you may be better off keeping an LRU of those locally on each node and having a separate cache invalidation protocol.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>Although, adding a cache invalidation protocol to memcached itself could be interesting. Perhaps connect on a different port and have keys streaming to you as they mutate. Has anyone considered such a thing?</DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>-- </DIV><DIV>Dustin Sallings</DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR></BODY></HTML>