--- a/mercurial/configitems.py	Sat Nov 10 19:27:47 2018 +0900
+++ b/mercurial/configitems.py	Sun Nov 18 19:47:04 2018 +0900
@@ -173,9 +173,18 @@
 coreconfigitem('cmdserver', 'log',
     default=None,
 )
+coreconfigitem('cmdserver', 'max-log-files',
+    default=7,
+)
+coreconfigitem('cmdserver', 'max-log-size',
+    default='1 MB',
+)
 coreconfigitem('cmdserver', 'message-encodings',
     default=list,
 )
+coreconfigitem('cmdserver', 'track-log',
+    default=lambda: ['chgserver', 'cmdserver'],
+)
 coreconfigitem('color', '.*',
     default=None,
     generic=True,