Set couchdb loglevel to the value specified in static_config.

Change-Id: Ieda08326366879fc63f2eac7865edc3923b8875d
Reviewed-on: http://review.couchbase.org/10590
Tested-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>
Reviewed-by: Dale Harvey <daleharvey@arandomurl.com>
Tested-by: Dale Harvey <daleharvey@arandomurl.com>

src/cb_suppress_loggers.erl → src/cb_init_loggers.erl

@@ -13,14 +13,31 @@
 %% See the License for the specific language governing permissions and
 %% limitations under the License.
 
--module(cb_suppress_loggers).
+-module(cb_init_loggers).
 
 -export([start_link/0]).
 
 start_link() ->
     supress_loggers(),
+    set_couchdb_loglevel(),
     ignore.
 
 supress_loggers() ->
     error_logger:delete_report_handler(error_logger_tty_h),
     error_logger:delete_report_handler(sasl_report_tty_h).
+
+set_couchdb_loglevel() ->
+    LogLevel = ns_server:get_loglevel(couchdb),
+    CouchLogLevel = ns_server_to_couchdb_loglevel(LogLevel),
+    couch_config:set("log", "level", CouchLogLevel).
+
+ns_server_to_couchdb_loglevel(debug) ->
+    "debug";
+ns_server_to_couchdb_loglevel(info) ->
+    "info";
+ns_server_to_couchdb_loglevel(warn) ->
+    "error";
+ns_server_to_couchdb_loglevel(error) ->
+    "error";
+ns_server_to_couchdb_loglevel(critical) ->
+    "error".

src/ns_server.erl

@@ -17,7 +17,7 @@
 
 -behavior(application).
 
--export([start/2, stop/1]).
+-export([start/2, stop/1, get_loglevel/1]).
 
 -include("ns_common.hrl").
 -include_lib("ale/include/ale.hrl").

src/ns_server_cluster_sup.erl

@@ -52,8 +52,8 @@ init([]) ->
             permanent, 5000, supervisor, [cb_couch_sup]},
            %% this must be placed after cb_couch_sup since couchdb starts
            %% sasl application
-           {cb_suppress_loggers, {cb_suppress_loggers, start_link, []},
-            transient, 1000, worker, [cb_supress_loggers]},
+           {cb_init_loggers, {cb_init_loggers, start_link, []},
+            transient, 1000, worker, [cb_init_loggers]},
            {log_os_info, {log_os_info, start_link, []},
             transient, 1000, worker, [log_os_info]},
            {timeout_diag_logger, {timeout_diag_logger, start_link, []},