1df1b1eaa0
# Which issue(s) this PR fixes Related to https://github.com/grafana/oncall-private/issues/2363 Addresses this issue that arises when using `cache.get_many`/`cache.set_many` operations with a Redis Cluster: ```python3 File "/usr/local/lib/python3.11/site-packages/redis/cluster.py", line 1006, in determine_slot raise RedisClusterException( redis.exceptions.RedisClusterException: MGET - all keys must map to the same key slot ``` From the Redis Cluster [docs](https://redis.io/docs/reference/cluster-spec/#hash-tags), this can be addressed with this 👇 . Basically this will ensure that keys in multi-key operations will resolve to the same hash slot (read: node): > Hash tags > There is an exception for the computation of the hash slot that is used in order to implement hash tags. Hash tags are a way to ensure that multiple keys are allocated in the same hash slot. This is used in order to implement multi-key operations in Redis Cluster. > > To implement hash tags, the hash slot for a key is computed in a slightly different way in certain conditions. If the key contains a "{...}" pattern only the substring between { and } is hashed in order to obtain the hash slot. However since it is possible that there are multiple occurrences of { or } the algorithm is well specified by the following rules: > > IF the key contains a { character. > AND IF there is a } character to the right of {. > AND IF there are one or more characters between the first occurrence of { and the first occurrence of }. > Then instead of hashing the key, only what is between the first occurrence of { and the following first occurrence of } is hashed. ## Checklist - [x] Unit, integration, and e2e (if applicable) tests updated - [ ] Documentation added (or `pr:no public docs` PR label added if not required) - [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not required) |
||
|---|---|---|
| .. | ||
| migrations | ||
| tasks | ||
| tests | ||
| __init__.py | ||
| alert_rendering.py | ||
| auth.py | ||
| backend.py | ||
| demo_push.py | ||
| exceptions.py | ||
| fcm_relay.py | ||
| models.py | ||
| serializers.py | ||
| types.py | ||
| urls.py | ||
| utils.py | ||
| views.py | ||