Merge pull request #64 from zalando/bugfix/pg_controldata_changes

Work around the differences in pg_controldata names.

patroni/postgresql.py

@@ -379,7 +379,7 @@ recovery_target_timeline = 'latest'
             data = subprocess.check_output(['pg_controldata', self.data_dir])
             if data:
                 data = data.splitlines()
-                result = {l.split(':')[0]: l.split(':')[1].strip() for l in data if l}
+                result = {l.split(':')[0].replace('Current ', '', 1): l.split(':')[1].strip() for l in data if l}
         except subprocess.CalledProcessError:
             logger.exception("Error when calling pg_controldata")
         finally:

tests/test_postgresql.py

@@ -118,12 +118,12 @@ Backup start location:                0/0
 Backup end location:                  0/0
 End-of-backup record required:        no
 wal_level setting:                    hot_standby
-wal_log_hints setting:                on
+Current wal_log_hints setting:                on
-max_connections setting:              100
+Current max_connections setting:              100
-max_worker_processes setting:         8
+Current max_worker_processes setting:         8
-max_prepared_xacts setting:           0
+Current max_prepared_xacts setting:           0
-max_locks_per_xact setting:           64
+Current max_locks_per_xact setting:           64
-track_commit_timestamp setting:       off
+Current track_commit_timestamp setting:       off
 Maximum data alignment:               8
 Database block size:                  8192
 Blocks per segment of large relation: 131072