redis sentinal setup

[Raju Divakaran]

Hello,

I am trying to setup redis sentinal, with one master and two slaves.

All redis instances are separated on separate VMs, listening on port 6379 and following IPs

192.168.10.4 Master

192.168.10.3 Slave1

192.168.10.2 Slave2

The configuration file I used for sentinal is 

port 26379

sentinel monitor redismaster 192.168.10.4 6379 1

sentinel down-after-milliseconds redismaster 5000

sentinel failover-timeout redismaster 900000

logfile "/var/log/redis/sentinel.log"

As soon as I start sentinal on master as expected its discovering the slaves and auto modifying the config file.

But when I start sentinal on one slave ( separate VMs )

I can see a line like this is getting added to the config file

sentinel known-sentinel redismaster 192.168.10.1 26379 fb34o98nanXXXXXX 

Also similarly in the slave sentinal config file, but each having a different IP in that line like

sentinel known-sentinel redismaster 192.168.10.2 26379 fb34o98nanXXXXXX 

Those are actually virtual IPs present on those VMS, but assigned and listening to other services. 

In the sentinal log file it shows like

59050:X 01 Dec 17:27:47.499 * +sentinel-address-switch master redismaster 192.168.10.4 6379 ip 192.168.10.3 port 26379 for XXXXXXX

59050:X 01 Dec 17:27:47.502 * +sentinel-address-switch master redismaster 192.168.10.4 6379 ip 192.168.10.1 port 26379 for XXXXXXXXXXx

Is this expected ? I mean I didn't expect, sentinal to pick random IPs present on the VMs. Any help would be greatly appreciated.

PS: I have masked the IDs and replaced original ip addresses

Thanks,

Raju.

[Raju Divakaran]

I was able to solve it by specifying the announce-ip :) I saw this option a little later.

Thanks,

~Raju.