Innodb fragmented plugin

innodb/__init__.py

@@ -0,0 +1 @@
+

innodb/fragmented.py

@@ -0,0 +1,33 @@
+def get_fragmented_tables(percent=10, session=None):
+    import mysqlsh
+    shell = mysqlsh.globals.shell
+
+    if session is None:
+        session = shell.get_session()
+        if session is None:
+            print("No session specified. Either pass a session object to this "
+                  "function or connect the shell to a database")
+            return
+    stmt = "select variable_value from performance_schema.global_variables where variable_name='information_schema_stats_expiry';"
+    result = session.run_sql(stmt)
+    stats = result.fetch_all()
+    if len(stats) > 0:
+        for stat in stats:
+            if int(stat[0]) > 0:
+                print "Warning: information_schema_stats_expiry is set to {0}.".format(*stat)
+
+    stmt = """SELECT CONCAT(table_schema, '.', table_name) as 'TABLE', 
+       ENGINE, CONCAT(ROUND(table_rows / 1000000, 2), 'M') `ROWS`, 
+       CONCAT(ROUND(data_length / ( 1024 * 1024 * 1024 ), 2), 'G') DATA, 
+       CONCAT(ROUND(index_length / ( 1024 * 1024 * 1024 ), 2), 'G') IDX, 
+       CONCAT(ROUND(( data_length + index_length ) / ( 1024 * 1024 * 1024 ), 2), 'G') 'TOTAL SIZE', 
+       ROUND(index_length / data_length, 2)  IDXFRAC, 
+        CONCAT(ROUND(( data_free / 1024 / 1024),2), 'MB') AS 'DATA FREE',
+       CONCAT('(',
+        IF(data_free< ( data_length + index_length ), 
+        CONCAT(round(data_free/(data_length+index_length)*100,2),'%'),
+       '100%'),')') AS 'DATA FREE%'
+       FROM information_schema.TABLES  WHERE (data_free/(data_length+index_length)*100) > {limit}
+       AND table_schema <> 'mysql' AND ENGINE='INNODB';""".format(limit=percent)
+    result = session.run_sql(stmt)
+    shell.dump_rows(result)

innodb/init.py

@@ -1,2 +1,33 @@
 # init.py
 # -------
+
+
+from ext.mysqlsh_plugins_common import register_plugin
+from ext.innodb import fragmented
+
+
+register_plugin("getFragmentedTables", fragmented.get_fragmented_tables,
+           {"brief": "Prints InnoDB fragmented tables",
+             "parameters": [{
+                "name": "percent",
+                "brief": "Amount of free space to be considered as fragmented",
+                "type": "integer",
+                "required": False
+             },{
+                "name": "session",
+                "brief": "The session to be used on the operation.",
+                "type": "object",
+                "classes": ["Session", "ClassicSession"],
+                "required": False
+            }
+            ]
+           },
+           "innodb",
+           {
+             "brief": "InnoDB management and utilities.",
+             "details": [
+                 "A collection of InnoDB management tools and related "
+                 "utilities that work on InnoDB Engine"
+             ]
+           }
+     )