[Progress Communities] [Progress OpenEdge ABL] Forum Post: Session sharing within 2 PASOE instances

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sbrissondeblecx

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I'm currently rewriting part of the legacy webspeed application to make use of PASOE features (and by the way going OO). One of the goal, it's to able to share session's data between instances. Session's data is kept in 2 tables in the database. If I wish to offload specifics read-only requests to the OE-Replication database. The replicated database will eventually contain the data at a given time but it is out of my control. If I create a session in the production database and redirected right away the client to the PASOE instance that is connected to the replicated db, it may fail because of replication lag/workload. Not sure if Tomcat load balancing can help me on this one. So, I'm looking of another way to handle session's data. I know that mechanisms already exist in Tomcat ecosystem (Spring, Redis, Memcached and so on). But they are all into Tomcat side, not ABL. How can I have my ABL code talking to the Tomcat/Spring stack to read/write values into the Tomcat session ? If not, what other fast and reliable ways are possible ?

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