Configuration advice

Hello,

I'll try to explain and hopefully answer your questions.

1) When the server is marked down, does persistence entry gets deleted or remains until idle time expires.

It will be deleted. There aren't any quick solutions to modify this, however, still doable with the use of iRules if really needed. I'm assuming that you like the default behaviour in that regard.

2) When the server is marked down, does the connection entry gets deleted or remains until idle time expires.

 

By default, both the clientside and serverside connection records will remain. These records will be retained until connection is resumed, until timed out, or until closed either by server or client.

What might interest you is a configuration entity "Action on Service Down" which can be found in Pool configuration settings. In your case, you should go to Pool configuration, and select

Action on Service Down -> Reselect

. What this will do is let the active connection flow continue by remapping the serverside connection stream to another available pool member. Please note that this solution would not make anything better for services that require persistent/sticky sessions.