Redis & Sentinel

[polskikrol]

Ok, so, I am running into an issue with getting sentinel and redis working with the librenms docker containers. I tried to follow the instructions here: Dispatcher Service (RC) - LibreNMS Docs.

Additionally, many others have had issues with no replies to their posts and the threads locked after 3 months. Why lock the threads in 3 months if the forum doesnt see much action (judging by how many responses there are). Here are the related threads:

Help with Redis Sentinel

Hello LibreNMS community, I have a distrubuted poller setup running librenms-dispatcher and this works wonderfully to a galera backend database and the pollers are connected currently to a single redis instance. I have an almost symmetric replica in my lab setup to test this. I am attempting to make the redis highly available, so I followed the instructions at Dispatcher Service (RC) - LibreNMS Docs and replaced my .env references for REDIS (snipping from my Lab configuration contains two act…

Librenms-service.py does not try to reconnect to Redis Sentinel after Redis cache failure

I recently configured Redis Sentinel to support distributed redis and failover, however I noticed an issue with the librenms-service.py polling service. When a polling service is connected to a Redis cache which is received from a Redis Sentinel, and then the Redis cache becomes unavailable (network partition, host shutdown, etc), it seems that the polling service does not “re-ask” Redis Sentinel for another Redis cache, and continues to try to connect to the failed server. The polling service…

Using Redis with Sentinel

I want to use distributed polling using Redis and Sentinel for HA setup but can’t seem to find any good documentation. The documentation suggests using Sentinel but doesn’t provide the information on how. I have 2 LibreNS servers and a 3rd server so i have a 3 device cluster as advised. But how and where do i configure these servers so they can do a failover in case the master fails? It seems i can’t configure multiple sentinel servers in the .env file and if i configure it with the local serv…