Add configuration of select timeout for cache channels

trytond/CHANGELOG

@@ -1,3 +1,4 @@
+* Add configuration of select timeout for cache channels
 * Add color as type of icon and image
 * Add color widget to form view
 * Limit access to database from the same series

trytond/doc/topics/configuration.rst

@@ -412,6 +412,15 @@ channels if the back-end supports them.
 
 Default: ``300``
 
+.. _config-cache.select_timeout:
+
+select_timeout
+~~~~~~~~~~~~~~
+
+The timeout duration of the select call when using channels.
+
+Default: ``60``
+
 .. _config-cache.count_timeout:
 
 count_timeout

trytond/trytond/cache.py

@@ -22,6 +22,7 @@ from trytond.transaction import Transaction
 
 __all__ = ['BaseCache', 'Cache', 'LRUDict', 'LRUDictTransaction']
 _clear_timeout = config.getint('cache', 'clean_timeout', default=5 * 60)
+_select_timeout = config.getint('cache', 'select_timeout')
 _default_size_limit = config.getint('cache', 'default')
 logger = logging.getLogger(__name__)
 
@@ -401,7 +402,7 @@ class MemoryCache(BaseCache):
 
             selector.register(conn, selectors.EVENT_READ)
             while cls._listener.get((pid, dbname)) == current_thread:
-                selector.select(timeout=60)
+                selector.select(timeout=_select_timeout)
                 conn.poll()
                 while conn.notifies:
                     notification = conn.notifies.pop()

trytond/trytond/config.py

@@ -75,6 +75,7 @@ class TrytonConfigParser(configparser.ConfigParser):
         self.set('cache', 'default', '1024')
         self.set('cache', 'ir.message', '10240')
         self.set('cache', 'ir.translation', '10240')
+        self.set('cache', 'select_timeout', '60')
         self.add_section('queue')
         self.set('queue', 'worker', 'False')
         self.add_section('ssl')