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Collect per-SQL-verb timer stats on query execution time

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This commit is contained in:
Paul "LeoNerd" Evans 2015-03-04 19:45:16 +00:00
parent f52acf3b12
commit 25187ab674
1 changed files with 11 additions and 5 deletions
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16
synapse/storage/_base.py
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@ -32,12 +32,15 @@ import time
logger = logging.getLogger(__name__)
metrics = synapse.metrics.get_metrics_for("synapse.storage")
sql_logger = logging.getLogger("synapse.storage.SQL")
transaction_logger = logging.getLogger("synapse.storage.txn")
metrics = synapse.metrics.get_metrics_for("synapse.storage")
sql_query_timer = metrics.register_timer("queries", keys=["verb"])
# TODO(paul):
# * more generic key management
# * consider other eviction strategies - LRU?
@ -89,7 +92,8 @@ def cached(max_entries=1000):
class LoggingTransaction(object):
"""An object that almost-transparently proxies for the 'txn' object
passed to the constructor. Adds logging to the .execute() method."""
passed to the constructor. Adds logging and metrics to the .execute()
method."""
__slots__ = ["txn", "name"]
def __init__(self, txn, name):
@ -105,6 +109,7 @@ class LoggingTransaction(object):
def execute(self, sql, *args, **kwargs):
# TODO(paul): Maybe use 'info' and 'debug' for values?
sql_logger.debug("[SQL] {%s} %s", self.name, sql)
try:
if args and args[0]:
values = args[0]
@ -126,8 +131,9 @@ class LoggingTransaction(object):
logger.exception("[SQL FAIL] {%s}", self.name)
raise
finally:
end = time.time() * 1000
sql_logger.debug("[SQL time] {%s} %f", self.name, end - start)
msecs = (time.time() * 1000) - start
sql_logger.debug("[SQL time] {%s} %f", self.name, msecs)
sql_query_timer.inc_time(msecs, sql.split()[0])
class PerformanceCounters(object):