X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=docs%2Fdeployment.rst;fp=docs%2Fdeployment.rst;h=ba8fcd934743ff850a73cdffc2215f673d1e7929;hb=1ace2e651edb89d042bfbc80861dedfc83f44caf;hp=de276ce28fa5595797b0487cbf234ab62b0226de;hpb=4e2c927201143795748e599d205ebe46679c7e05;p=cps.git

diff --git a/docs/deployment.rst b/docs/deployment.rst
index de276ce28..ba8fcd934 100644
--- a/docs/deployment.rst
+++ b/docs/deployment.rst
@@ -12,6 +12,13 @@ CPS Deployment
 .. contents::
     :depth: 2
 
+Database configuration
+======================
+CPS uses PostgreSQL database. As per the `PostgreSQL documentation on resource consumption
+<https://www.postgresql.org/docs/current/runtime-config-resource.html#GUC-SHARED-BUFFERS>`_, the *shared_buffers*
+parameter should be set between 25% and 40% of total memory. It has a default value of 128 megabytes, so this should be
+set appropriately. For example, given a database with 2GB of memory, 512MB is a recommended value.
+
 CPS OOM Charts
 ==============
 The CPS kubernetes chart is located in the `OOM repository <https://github.com/onap/oom/tree/master/kubernetes/cps>`_.