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Logging of all SQL queries via the 'synapse.storage.SQL' logger
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@ -25,6 +25,44 @@ import json
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logger = logging.getLogger(__name__)
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sql_logger = logging.getLogger("synapse.storage.SQL")
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class LoggingTransaction(object):
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"""An object that almost-transparently proxies for the 'txn' object
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passed to the constructor. Adds logging to the .execute() method."""
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__slots__ = ["txn"]
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def __init__(self, txn):
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object.__setattr__(self, "txn", txn)
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def __getattribute__(self, name):
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if name == "execute":
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return object.__getattribute__(self, "execute")
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return getattr(object.__getattribute__(self, "txn"), name)
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def __setattr__(self, name, value):
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setattr(object.__getattribute__(self, "txn"), name, value)
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def execute(self, sql, *args, **kwargs):
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# TODO(paul): Maybe use 'info' and 'debug' for values?
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sql_logger.debug("[SQL] %s", sql)
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try:
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if args and args[0]:
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values = args[0]
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sql_logger.debug("[SQL values] " +
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", ".join(("<%s>",) * len(values)), *values)
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except:
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# Don't let logging failures stop SQL from working
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pass
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# TODO(paul): Here would be an excellent place to put some timing
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# measurements, and log (warning?) slow queries.
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return object.__getattribute__(self, "txn").execute(
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sql, *args, **kwargs
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)
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class SQLBaseStore(object):
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@ -34,9 +72,12 @@ class SQLBaseStore(object):
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self.event_factory = hs.get_event_factory()
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self._clock = hs.get_clock()
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def runInteraction(self, txn, *args, **kwargs):
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def runInteraction(self, func, *args, **kwargs):
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"""Wraps the .runInteraction() method on the underlying db_pool."""
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return self._db_pool.runInteraction(txn, *args, **kwargs)
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def inner_func(txn, *args, **kwargs):
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return func(LoggingTransaction(txn), *args, **kwargs)
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return self._db_pool.runInteraction(inner_func, *args, **kwargs)
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def cursor_to_dict(self, cursor):
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"""Converts a SQL cursor into an list of dicts.
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