From 36e0204a8f5ed9e8bcb349dff249f4f9fc9b70c8 Mon Sep 17 00:00:00 2001 From: onestraw Date: Fri, 1 Feb 2019 11:14:51 +0800 Subject: [PATCH] Clarification of Redis storage HA Change-Id: I6674421d3afdbfab6acd97851cb062341b88a90e --- docs/storage/redis.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/docs/storage/redis.md b/docs/storage/redis.md index 552939c..25c70bc 100644 --- a/docs/storage/redis.md +++ b/docs/storage/redis.md @@ -1,6 +1,8 @@ # Redis Storage -This storage system separates chihaya from storage and stores all peer data in Redis to achieve HA. +This storage system separates chihaya server from storage service, chihaya server achieves HA by storing all peer data in Redis, the storage service gets HA by creating cluster. If one chihaya node goes down, peer data will still be available in Redis service. + +The HA of storage service is not considered here, it's another topic. In case Redis service is a single node, peer data will be unavailable if the node is down. So you should setup a Redis cluster for chihaya server in production. ## Use Case