Re: Clustering / High Availability edge cases?

2011-09-16 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Mark, On 9/15/2011 3:17 AM, Mark Thomas wrote: On 14/09/2011 23:03, Christopher Schultz wrote: John, On 9/13/2011 5:51 AM, John Bass wrote: In the event of a node failure, I'm assuming that there's no way to recover from that and the failure

Re: Clustering / High Availability edge cases?

2011-09-15 Thread Mark Thomas
On 13/09/2011 10:51, John Bass wrote: Hi all, I'm relatively new to clustering with Tomcat and I'm trying to understand the edge cases. If I'd like to guarantee continuous availability, what are the caveats? As I understand it, Tomcat clustering will ensure that session information is

Re: Clustering / High Availability edge cases?

2011-09-15 Thread Mark Thomas
On 14/09/2011 23:03, Christopher Schultz wrote: John, On 9/13/2011 5:51 AM, John Bass wrote: In the event of a node failure, I'm assuming that there's no way to recover from that and the failure will be visible to a client application. Correct: no other node in the cluster can serve the

Clustering / High Availability edge cases?

2011-09-13 Thread John Bass
Hi all, I'm relatively new to clustering with Tomcat and I'm trying to understand the edge cases. If I'd like to guarantee continuous availability, what are the caveats? As I understand it, Tomcat clustering will ensure that session information is persisted in the event of a failure. That's

Re: Clustering / High Availability edge cases?

2011-09-13 Thread Pid
On 13/09/2011 10:51, John Bass wrote: Hi all, I'm relatively new to clustering with Tomcat and I'm trying to understand the edge cases. If I'd like to guarantee continuous availability, what are the caveats? As I understand it, Tomcat clustering will ensure that session information is