fuatd_30923
May 13, 2011Nimbostratus
Persistency between specific members of a pool
Hi,
I have a cookie and session id persistence iRule. What i want to additionally do is persistency with spesific members in pool. Let me explain,
I have one pool including 4 members (1, 2, 3 and 4). These web servers are grouped in two cell, which are 1 and 3 are in Cell1 and 2 and $4 are in cell2.
When member 1 (which is in Cell1) failed in pool, if the persistent client (not new client) is sent to 2 or 4 (one of the members in Cell2) client session is lost.I am looking for a solution for this. I have to use 4 members when 4 of them is up, but if one fails, i have to sent sessions on that server to the one in the same cell.
if 1 down
then select 3 for existing sessions
if 3 down
then select 1 for existing sessions
if 2 down
then select 4 for existing sessions
if 4 down
then select 2 for existing sessions
We accept risk loosing client session when both cell members (1 and 3 or 2 and 4) are down.
Thank you.