improve TAPI feature installation Al documentation

Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: I8fea67fe31a8a94775f7800b2829c4f17c795a1d

diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index 541bbc939a5dbeba79b5775984d8890892929e14..a68f749a4d4c85654b6c03113a3931c0979ee4e4 100644 (file)
--- a/docs/user-guide.rst
+++ b/docs/user-guide.rst
@@ -81,6 +81,13 @@ if you need TAPI limited support, then run::
 
    feature:install odl-transportpce-tapi
 
+When installing the TAPI feature, you might encounter a heap memory size problem in Karaf.
+In that case, consider increasing Karaf heap memory size.
+For example by modifying the environment variables JAVA_MIN_MEM and JAVA_MAX_MEM before starting Karaf::
+
+   export JAVA_MIN_MEM=1024M
+   export JAVA_MAX_MEM=4069M
+
 if you need the inventory external connector support limited to 1.2.1 OpenROADM devices, then run::
 
    feature:install odl-transportpce-inventory