When changing the activation state using "Edit all members", instead of logging the new state, the old state is logged. This is massively confusing.

To solve this problem, the code changing the state needs to be moved before the logging statement:

--- common/jk_status.c-orig	2014-06-24 16:54:51.000000000 +0200
+++ common/jk_status.c	2014-06-24 16:55:19.000000000 +0200
@@ -3601,10 +3601,10 @@
                     if (rv == JK_TRUE) {
                         i = jk_lb_get_activation_code(arg);
                         if (i != wr->activation && i >= 0 && i <= JK_LB_ACTIVATION_MAX) {
+                            wr->activation = i;
                             jk_log(l, JK_LOG_INFO,
                                    "Status worker '%s' setting 'activation' for sub worker '%s' of lb worker '%s' to '%s'",
                                    w->name, wr->name, name, jk_lb_get_activation(wr, l));
-                            wr->activation = i;
                             rc = 1;
                             sync_needed = JK_TRUE;
                         }

While working on this, I found that logging both old and new state would be much more useful, like in:

[Tue Jun 24 16:49:55.412 2014] [28769:140012450096896] [info] commit_all_members::jk_status.c (3607): Status worker 'jkmanager' setting 'activation' for sub worker 'censored' of lb worker 'secret' from 'ACT' to 'DIS'

A patch for this format change is appended.