table and HA

Hi Piotr,

I'm using the table command for a Pre-Auth / Single-Sign-On functionality (aka. storing cookie values and credential sets into tables) on a three node 8950'er active/active cluster with session mirroring enabled. It works like a charm where a (controlled or unexpected) failover hasn't cause my clients to reathenticate yet. So personally I would rate this functionality as very very reliable...

"StateMirror.MirrorSessions" controls this behavior and yes it's enabled by default and imediatly starts to replicate your session information once you've created the cluster group with valid session mirroring configuration. No need to enable VS specific settings...

Since v11.4 you are able to use Active/Active traffic groups where each traffic group has its own replication channel and also its very own "session table" container, where the data of this traffic group can be stored.

Each of your traffic groups has always only one "active" member where data can be insert and all other traffic group member are just replicas.

Trying to update table data on standby units would cause your system to "no-op" those commands (no-operation = do nothing), but I didn't try that before nor do I even know a way to call the

[table]

Furthermore an iRule triggered by VS1 in TG1 cant access data generated by VS2 in TG2. Each TG has now its own table.

For further reading on this topic: https://devcentral.f5.com/articles/big-ip-114-behavior-change-global-data-now-partitioned-by-traffic-group

Regarding your question on SOL13478: I duno, I don't use TCP-Mirroring for HTTP. Its simply not worth... 😉

Cheers, Kai