[GitHub] [apisix] Yiyiyimu commented on a change in pull request #2346: doc: update etcd installation step for v3.4

[GitBox <gi...@apache.org>]

Yiyiyimu commented on a change in pull request #2346:
URL: https://github.com/apache/apisix/pull/2346#discussion_r497227404



##########
File path: bin/apisix
##########
@@ -998,19 +998,19 @@ local function init_etcd(show_output)
         local errmsg = string.format("got malformed version message: \"%s\" from etcd", res)
         local body, _, err = dkjson.decode(res)
         if err then
-            io.stderr:write(errmsg)
+            error(errmsg)
             return
         end
 
         local cluster_version = body["etcdcluster"]
         if not cluster_version then
-            io.stderr:write(errmsg)
+            error(errmsg)
             return
         end
 
         if compare_semantic_version(cluster_version, min_etcd_version) then
-            io.stderr:write("etcd cluster version ", cluster_version,

Review comment:
       thank you for the suggestion, but simply output is error is very likely to be overlooked, like in #2342. 
   Replace `error` with `write`+`exit`, to not expose the traceback




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