From ca74e29458654ee8edddf22df8d20535b5a26c8b Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@gmail.com>
Date: Sat, 29 Jun 2019 19:54:46 +0300
Subject: [PATCH] README.md: explain how to configure HA setup for Prometheus
 HA pairs

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6136e406a..5e89fb99e 100644
--- a/README.md
+++ b/README.md
@@ -413,7 +413,7 @@ Rough estimation of the required resources:
 
 ### High availability
 
-1) Install multiple VictoriaMetrics instances in distinct datacenters.
+1) Install multiple VictoriaMetrics instances in distinct datacenters (availability zones).
 2) Add addresses of these instances to `remote_write` section in Prometheus config:
 
 ```yml
@@ -438,6 +438,10 @@ kill -HUP `pidof prometheus`
 6) Set up Prometheus datasource in Grafana that points to Promxy.
 
 
+If you have Prometheus HA pairs with replicas `r1` and `r2` in each pair, then configure each `r1`
+to write data to `<victoriametrics-addr-1`, while each `r2` should write data to `victoriametrics-addr-2`.
+
+
 ### Multiple retentions
 
 Just start multiple VictoriaMetrics instances with distinct values for the following flags: