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Collect per-SQL-verb timer stats on query execution time
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parent
f52acf3b12
commit
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@ -32,12 +32,15 @@ import time
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logger = logging.getLogger(__name__)
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metrics = synapse.metrics.get_metrics_for("synapse.storage")
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sql_logger = logging.getLogger("synapse.storage.SQL")
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transaction_logger = logging.getLogger("synapse.storage.txn")
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metrics = synapse.metrics.get_metrics_for("synapse.storage")
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sql_query_timer = metrics.register_timer("queries", keys=["verb"])
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# TODO(paul):
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# * more generic key management
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# * consider other eviction strategies - LRU?
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@ -89,7 +92,8 @@ def cached(max_entries=1000):
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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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passed to the constructor. Adds logging and metrics to the .execute()
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method."""
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__slots__ = ["txn", "name"]
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def __init__(self, txn, name):
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@ -105,6 +109,7 @@ class LoggingTransaction(object):
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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} %s", self.name, 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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@ -126,8 +131,9 @@ class LoggingTransaction(object):
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logger.exception("[SQL FAIL] {%s}", self.name)
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raise
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finally:
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end = time.time() * 1000
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sql_logger.debug("[SQL time] {%s} %f", self.name, end - start)
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msecs = (time.time() * 1000) - start
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sql_logger.debug("[SQL time] {%s} %f", self.name, msecs)
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sql_query_timer.inc_time(msecs, sql.split()[0])
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class PerformanceCounters(object):
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