Configureable slow query threshold

docs/configuration.md

@@ -67,3 +67,10 @@ Note 1: If a seeded database is renamed in the manifest, a new database will be
 Note 2: If all you need is a database deployment, it is possible to deploy this
 release with zero broker instances and completely remove any dependencies on Cloud Foundry.
 See the [proxy](jobs/proxy/spec) and [acceptance-tests](jobs/acceptance-tests/spec) spec files for standalone configuration options.
+
+## Instance tuning ##
+### slow query log ###
+
+The slow query log is enabled and you can find long query exceeded 10 seconds (by default) in `/var/vcap/sys/log/mysql/mysql_slow_query.log`
+
+To change the threshold above which SQL queries get logged in the slow query log file, update  `cf_mysql.mysql.long_query_time` (time in seconds/microseconds).

jobs/mysql/spec

@@ -256,3 +256,8 @@ properties:
   cf_mysql.mysql.enable_galera:
     default: true
     description: 'Advanced feature. Only use this when deploying a single MySQL node with no intention to run any other components of cf-mysql-release.'
+
+  cf_mysql.mysql.long_query_time:
+    default: 10
+    description: 'Threshold in seconds above which SQL queries get logged in the slow query log file'
+

jobs/mysql/templates/my.cnf.erb

@@ -118,6 +118,7 @@ log_bin_trust_function_creators = 1
 # Slow query logging:
 slow_query_log                  = 1
 slow_query_log_file             = /var/vcap/sys/log/mysql/mysql_slow_query.log
+long_query_time                 = <%= p('cf_mysql.mysql.long_query_time') %>
 <% if p('cf_mysql.mysql.log_queries_not_using_indexes') %>
 log_queries_not_using_indexes   = ON
 <% end %>

jobs/mysql/templates/my.cnf.erb.shasum

@@ -1 +1 @@
-6f51768902ab19b8167cbaad94c9c967c7f33dd9
+1ace844bb57360a9c72cbe502c7f28c95da39594