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statusdb: Retry backoff for PRAGMAs

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Krystine Sherwin 2025-07-08 15:44:02 +12:00
parent bd0d615b2a
commit 3493f2152f
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1 changed files with 19 additions and 3 deletions
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22
sbysrc/sby_status.py
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@ -103,9 +103,25 @@ class SbyStatusDb:
self.con = sqlite3.connect(path, isolation_level=None, timeout=timeout)
self.db = self.con.cursor()
self.db.row_factory = sqlite3.Row
self.db.execute("PRAGMA journal_mode=WAL")
self.db.execute("PRAGMA synchronous=0")
self.db.execute("PRAGMA foreign_keys=ON")
err_count = 0
err_max = 3
while True:
try:
self.db.execute("PRAGMA journal_mode=WAL")
self.db.execute("PRAGMA synchronous=0")
self.db.execute("PRAGMA foreign_keys=ON")
except sqlite3.OperationalError as err:
if "database is locked" not in err.args[0]:
raise
err_count += 1
if err_count > err_max:
err.add_note(f"Failed to acquire lock after {err_count} attempts, aborting")
raise
backoff = err_count / 10.0
self.log_debug(f"Database locked, retrying in {backoff}s")
time.sleep(backoff)
else:
break
if setup:
self._setup()