diff options
Diffstat (limited to 'synapse/storage')
| -rw-r--r-- | synapse/storage/devices.py | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/synapse/storage/devices.py b/synapse/storage/devices.py index 97f6cd2754..44324bf400 100644 --- a/synapse/storage/devices.py +++ b/synapse/storage/devices.py @@ -24,6 +24,7 @@ from synapse.api.errors import StoreError from synapse.metrics.background_process_metrics import run_as_background_process from synapse.storage._base import Cache, SQLBaseStore, db_to_json from synapse.storage.background_updates import BackgroundUpdateStore +from synapse.util import batch_iter from synapse.util.caches.descriptors import cached, cachedInlineCallbacks, cachedList logger = logging.getLogger(__name__) @@ -396,8 +397,8 @@ class DeviceWorkerStore(SQLBaseStore): are in the given list of user_ids. Args: + from_key (str): The device lists stream token user_ids (Iterable[str]) - from_key: The device lists stream token Returns: Deferred[set[str]]: The set of user_ids whose devices have changed @@ -414,23 +415,19 @@ class DeviceWorkerStore(SQLBaseStore): if not to_check: return defer.succeed(set()) - # We now check the database for all users in `to_check`, in batches. - batch_size = 100 - chunks = [ - to_check[i : i + batch_size] for i in range(0, len(to_check), batch_size) - ] - - sql = """ - SELECT DISTINCT user_id FROM device_lists_stream - WHERE stream_id > ? - AND user_id IN (%s) - """ - def _get_users_whose_devices_changed_txn(txn): changes = set() - for chunk in chunks: - txn.execute(sql % (",".join("?" for _ in chunk),), [from_key] + chunk) + sql = """ + SELECT DISTINCT user_id FROM device_lists_stream + WHERE stream_id > ? + AND user_id IN (%s) + """ + + for chunk in batch_iter(to_check, 100): + txn.execute( + sql % (",".join("?" for _ in chunk),), [from_key] + list(chunk) + ) changes.update(user_id for user_id, in txn) return changes |