# must be reloaded.
# The `base_cache_signaling sequence` indicates all caches must be
# invalidated (i.e. cleared).
- self.base_registry_signaling_sequence = 1
- self.base_cache_signaling_sequence = 1
+ self.base_registry_signaling_sequence = None
+ self.base_cache_signaling_sequence = None
# Flag indicating if at least one model cache has been cleared.
# Useful only in a multi-process context.
@classmethod
def setup_multi_process_signaling(cls, cr):
if not openerp.multi_process:
- return
+ return None, None
# Inter-process signaling:
# The `base_registry_signaling` sequence indicates the whole registry
cr.execute("""SELECT nextval('base_registry_signaling')""")
cr.execute("""CREATE SEQUENCE base_cache_signaling INCREMENT BY 1 START WITH 1""")
cr.execute("""SELECT nextval('base_cache_signaling')""")
+
+ cr.execute("""
+ SELECT base_registry_signaling.last_value,
+ base_cache_signaling.last_value
+ FROM base_registry_signaling, base_cache_signaling""")
+ r, c = cr.fetchone()
+ _logger.debug("Multiprocess load registry signaling: [Registry: # %s] "\
+ "[Cache: # %s]",
+ r, c)
+ return r, c
@contextmanager
def cursor(self, auto_commit=True):
@classmethod
def get(cls, db_name, force_demo=False, status=None, update_module=False):
""" Return a registry for a given database name."""
- try:
- return cls.registries[db_name]
- except KeyError:
- return cls.new(db_name, force_demo, status,
- update_module)
- finally:
- # set db tracker - cleaned up at the WSGI
- # dispatching phase in openerp.service.wsgi_server.application
- threading.current_thread().dbname = db_name
+ with cls.registries_lock:
+ try:
+ return cls.registries[db_name]
+ except KeyError:
+ return cls.new(db_name, force_demo, status,
+ update_module)
+ finally:
+ # set db tracker - cleaned up at the WSGI
+ # dispatching phase in openerp.service.wsgi_server.application
+ threading.current_thread().dbname = db_name
@classmethod
def new(cls, db_name, force_demo=False, status=None,
cls.delete(db_name)
cls.registries[db_name] = registry
try:
+ with registry.cursor() as cr:
+ seq_registry, seq_cache = Registry.setup_multi_process_signaling(cr)
+ registry.base_registry_signaling_sequence = seq_registry
+ registry.base_cache_signaling_sequence = seq_cache
# This should be a method on Registry
openerp.modules.load_modules(registry.db, force_demo, status, update_module)
except Exception:
cr = registry.db.cursor()
try:
- Registry.setup_multi_process_signaling(cr)
registry.do_parent_store(cr)
registry.get('ir.actions.report.xml').register_all(cr)
cr.commit()
base_cache_signaling.last_value
FROM base_registry_signaling, base_cache_signaling""")
r, c = cr.fetchone()
+ _logger.debug("Multiprocess signaling check: [Registry - old# %s new# %s] "\
+ "[Cache - old# %s new# %s]",
+ registry.base_registry_signaling_sequence, r,
+ registry.base_cache_signaling_sequence, c)
# Check if the model registry must be reloaded (e.g. after the
# database has been updated by another process).
- if registry.base_registry_signaling_sequence != r:
+ if registry.base_registry_signaling_sequence is not None and registry.base_registry_signaling_sequence != r:
_logger.info("Reloading the model registry after database signaling.")
registry = cls.new(db_name)
- registry.base_registry_signaling_sequence = r
# Check if the model caches must be invalidated (e.g. after a write
# occured on another process). Don't clear right after a registry
# has been reload.
- elif registry.base_cache_signaling_sequence != c:
+ elif registry.base_cache_signaling_sequence is not None and registry.base_cache_signaling_sequence != c:
_logger.info("Invalidating all model caches after database signaling.")
- registry.base_cache_signaling_sequence = c
registry.clear_caches()
registry.reset_any_cache_cleared()
# One possible reason caches have been invalidated is the
for column in model._columns.values():
if hasattr(column, 'digits_change'):
column.digits_change(cr)
+ registry.base_registry_signaling_sequence = r
+ registry.base_cache_signaling_sequence = c
finally:
cr.close()
@classmethod
def signal_registry_change(cls, db_name):
if openerp.multi_process and db_name in cls.registries:
+ _logger.info("Registry changed, signaling through the database")
registry = cls.get(db_name)
cr = registry.db.cursor()
r = 1