update autotuning

src/smdba/postgresqlgate.py

@@ -896,7 +896,8 @@ def do_system_check(self, *args, **params):
  """
  Common backend healthcheck.
  @help
- autotuning\tperform initial autotuning of the database
+ autotuning\t\tperform initial autotuning of the database
+ --max_connections=<num>\tdefine maximal number of database connections (default: 400)
  """
  # Check enough space
 
@@ -910,8 +911,9 @@ def do_system_check(self, *args, **params):
  #
 
  # Built-in tuner
- conn_lowest = 400
- max_conn = int(params.get('max_connections', conn_lowest))
+ conn_lowest = 270
+ conn_default = 400
+ max_conn = int(params.get('max_connections', conn_default))
  if max_conn < conn_lowest:
  print >> sys.stdout, 'INFO: max_connections should be at least {0}'.format(conn_lowest)
  max_conn = conn_lowest
@@ -928,7 +930,7 @@ def do_system_check(self, *args, **params):
  changed = True
 
  # WAL senders at least 5
- if not conf.get('max_wal_senders') or conf.get('max_wal_senders') < '5':
+ if not conf.get('max_wal_senders') or int(conf.get('max_wal_senders')) < 5:
  conf['max_wal_senders'] = 5
  changed = True
 
@@ -948,7 +950,7 @@ def do_system_check(self, *args, **params):
  changed = True
 
  # max_locks_per_transaction
- if not conf.get('max_locks_per_transaction') or conf.get('max_locks_per_transaction') < '100':
+ if not conf.get('max_locks_per_transaction') or int(conf.get('max_locks_per_transaction')) < 100:
  conf['max_locks_per_transaction'] = 100
  changed = True
 
@@ -962,6 +964,11 @@ def do_system_check(self, *args, **params):
  conf['bytea_output'] = "'escape'"
  changed = True
 
+ # bsc#1022286 - too low value for statistic_target
+ if int(conf.get('default_statistics_target', 100)) <= 10:
+ del conf['default_statistics_target']
+ changed = True
+
  #
  # Setup pg_hba.conf
  # Format is pretty specific :-)