doc: only 1 log file per process

README.rst

@@ -175,6 +175,15 @@ Note also that you can't mix non-SSL nodes and SSL nodes, even between a
 upstream cluster and a backup one. In doing so, connections can get stuck,
 or fail with malformed packets or SSL handshake errors.
 
+Only 1 log file per process
+---------------------------
+
+Having multiple log file per process is not implemented yet. This limitation is
+mainly visible because client configuration offers an option to specify a log
+file whereas NEO events are logged in the one that's specificied last.
+This is not considered an issue so far because each event in the log contains
+the id & cluster of the node that emitted it.
+
 Deployment
 ==========
 

neo/client/component.xml

@@ -34,6 +34,7 @@
     <key name="logfile" datatype="existing-dirpath">
       <description>
         Log debugging information to specified SQLite DB.
+        Limitation: there can be only 1 log per process.
       </description>
     </key>
     <key name="cache-size" datatype="byte-size" default="20MB">