Last updated on JUNE 09, 2016
Applies to:Oracle WebLogic Server - Version 10.3.5 and later
Information in this document applies to any platform.
On : 10.3.5 version, EJB Container
WLS 10.3.5 - Callback connection between two Weblogic (WLS) Domains
There are two applications deployed into two different WLS domains: ApplicationA ( deployed into WLS DOMAIN A) calls applicationB (WLS DOMAIN B).
Application A and B are Stateless EJB modules configured with REQUIRE_NEW transaction attribute (CMT).
The EJBA method calls a remote EJBB method using T3. EJBB does not call EJBA.
The WLS servers into domain A are listening on ipA and portA; the WLS server B on ipB and portB.
These firewall rules are open between these two domains:
SOURCE IP : ipA
SOURCE PORT: > 1024
DESTINATIO PORT: portB
The application works correctly with no exceptions, but there are a lot of DROP connections from B to A; that is, on serverB connections remain in SYN_SENT status ( from ipB to ipA on port 7001 ).
No DROP connections ( in SYN_SENT status) from B to A.
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