Thank you Oscar, As I am new to clustering Tomcat, Let me know some information about Heartbeat too..
And according to your information, Is that Server B a backup for Server A(So that when A fails, B attain its responsibilites) or an equally performing server with A. 2008/4/8 Oscar Haeger <[EMAIL PROTECTED]>: > From my experience with clustering that is when the connection between > parts of the clusters are lost and they can't agree on which one is supposed > to keep serving the data. The most common way around it afaik is to have a > priority and heartbeat between the nodes and allow them to kill each other > off (something like STONITH = Shoot The Other Node In The Head) or similar. > > So, if we have two servers A and B and a heartbeat (with STONITH) between > them and node A misses a few heartbeats (perhaps a lockup, perhaps something > else), then node B will reset node A and take over that nodes capabilities. > > This is without reading about Terracotta so things might be different > there, but that's the split-brain problem from my experience. > > Hope this helps > > Cheers > > Oscar > > ________________________________ > > Från: Ch Praveena [mailto:[EMAIL PROTECTED] > Skickat: ti 2008-04-08 09:30 > Till: users@httpd.apache.org > Ämne: [EMAIL PROTECTED] Split-brain problem. > > > > Hi all, > > While going on with Terracotta article, > -- > http://www.terracotta.org/confluence/display/explore/How+Terracotta+Works, > For implementing application server clustering, I found this phrase, > "Split-brain problem.".. > > Please let me know about this in detail.. > > > > Regards, > > Praveena Chalamcharla, > Securview.... > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: [EMAIL PROTECTED] > " from the digest: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > -- Regards, Praveena Chalamcharla, Securview....
