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second part of adding Redis Sentinel support

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This commit is contained in:
Jan Kessler 2025-03-04 08:42:37 +01:00
parent 3b357746d8
commit 4370332e32
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GPG Key ID: FCF0DCB4ADFC53E7
2 changed files with 33 additions and 7 deletions
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10
backend/open_webui/socket/main.py
View File

@ -111,14 +111,18 @@ TIMEOUT_DURATION = 3
if WEBSOCKET_MANAGER == "redis":
log.debug("Using Redis to manage websockets.")
SESSION_POOL = RedisDict("open-webui:session_pool", redis_url=WEBSOCKET_REDIS_URL)
USER_POOL = RedisDict("open-webui:user_pool", redis_url=WEBSOCKET_REDIS_URL)
USAGE_POOL = RedisDict("open-webui:usage_pool", redis_url=WEBSOCKET_REDIS_URL)
sentinel_hosts=WEBSOCKET_SENTINEL_HOSTS.split(',')
sentinel_port=int(WEBSOCKET_SENTINEL_PORT)
sentinels=[(host, sentinel_port) for host in sentinel_hosts]
SESSION_POOL = RedisDict("open-webui:session_pool", redis_url=WEBSOCKET_REDIS_URL, sentinels)
USER_POOL = RedisDict("open-webui:user_pool", redis_url=WEBSOCKET_REDIS_URL, sentinels)
USAGE_POOL = RedisDict("open-webui:usage_pool", redis_url=WEBSOCKET_REDIS_URL, sentinels)
clean_up_lock = RedisLock(
redis_url=WEBSOCKET_REDIS_URL,
lock_name="usage_cleanup_lock",
timeout_secs=WEBSOCKET_REDIS_LOCK_TIMEOUT,
sentinels,
)
aquire_func = clean_up_lock.aquire_lock
renew_func = clean_up_lock.renew_lock

30
backend/open_webui/socket/utils.py
View File

@ -16,13 +16,35 @@ def parse_redis_sentinel_url(redis_url):
"db": int(parsed_url.path.lstrip("/") or 0),
}
def get_redis_connection(redis_url, sentinels, decode_responses=True):
"""
Creates a Redis connection from either a standard Redis URL or uses special
parsing to setup a Sentinel connection, if given an array of host/port tuples.
"""
if sentinels:
redis_config = parse_redis_sentinel_url(redis_url)
sentinel = redis.sentinel.Sentinel(
self.sentinels,
port=redis_config['port'],
db=redis_config['db'],
username=redis_config['username'],
password=redis_config['password'],
decode_responses=decode_responses
}
# Get a master connection from Sentinel
return sentinel.master_for(redis_config['service'])
else:
# Standard Redis connection
return redis.Redis.from_url(redis_url, decode_responses=decode_responses)
class RedisLock:
def __init__(self, redis_url, lock_name, timeout_secs):
def __init__(self, redis_url, lock_name, timeout_secs, sentinels=[]):
self.lock_name = lock_name
self.lock_id = str(uuid.uuid4())
self.timeout_secs = timeout_secs
self.lock_obtained = False
self.redis = redis.Redis.from_url(redis_url, decode_responses=True)
self.redis = get_redis_connection(redis_url, sentinels, decode_responses=True)
def aquire_lock(self):
# nx=True will only set this key if it _hasn't_ already been set
@ -44,9 +66,9 @@ class RedisLock:
class RedisDict:
def __init__(self, name, redis_url):
def __init__(self, name, redis_url, sentinels=[]):
self.name = name
self.redis = redis.Redis.from_url(redis_url, decode_responses=True)
self.redis = get_redis_connection(redis_url, sentinels, decode_responses=True)
def __setitem__(self, key, value):
serialized_value = json.dumps(value)