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Add logging on startup/shutdown (#8448)

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This is so we can tell what is going on when things are taking a while to start up.

The main change here is to ensure that transactions that are created during startup get correctly logged like normal transactions.
This commit is contained in:
Erik Johnston 2020-10-02 15:20:45 +01:00 • committed by GitHub
parent ec10bdd32b
commit e3debf9682
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25 changed files with 152 additions and 113 deletions
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8
synapse/storage/util/id_generators.py
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@ -54,7 +54,7 @@ def _load_current_id(db_conn, table, column, step=1):
"""
# debug logging for https://github.com/matrix-org/synapse/issues/7968
logger.info("initialising stream generator for %s(%s)", table, column)
cur = db_conn.cursor()
cur = db_conn.cursor(txn_name="_load_current_id")
if step == 1:
cur.execute("SELECT MAX(%s) FROM %s" % (column, table))
else:
@ -269,7 +269,7 @@ class MultiWriterIdGenerator:
def _load_current_ids(
self, db_conn, table: str, instance_column: str, id_column: str
):
cur = db_conn.cursor()
cur = db_conn.cursor(txn_name="_load_current_ids")
# Load the current positions of all writers for the stream.
if self._writers:
@ -283,15 +283,12 @@ class MultiWriterIdGenerator:
stream_name = ?
AND instance_name != ALL(?)
"""
sql = self._db.engine.convert_param_style(sql)
cur.execute(sql, (self._stream_name, self._writers))
sql = """
SELECT instance_name, stream_id FROM stream_positions
WHERE stream_name = ?
"""
sql = self._db.engine.convert_param_style(sql)
cur.execute(sql, (self._stream_name,))
self._current_positions = {
@ -340,7 +337,6 @@ class MultiWriterIdGenerator:
"instance": instance_column,
"cmp": "<=" if self._positive else ">=",
}
sql = self._db.engine.convert_param_style(sql)
cur.execute(sql, (min_stream_id * self._return_factor,))
self._persisted_upto_position = min_stream_id