fix(xo-server/api): don't log host.stats errors (#5553)

See xoa-support#3323

This avoids flooding the logs with ECONNREFUSED errors when the host's toolstack
is restarted

CHANGELOG.unreleased.md

@@ -17,6 +17,7 @@
 
 - [VM/Snapshot export] Fix `Error: no available place in queue` on canceling an export via browser then starting a new one when the concurrency threshold is reached [#5535](https://github.com/vatesfr/xen-orchestra/issues/5535) (PR [#5538](https://github.com/vatesfr/xen-orchestra/pull/5538))
 - [Servers] Hide pool's objects if its master is unreachable [#5475](https://github.com/vatesfr/xen-orchestra/issues/5475) (PR [#5526](https://github.com/vatesfr/xen-orchestra/pull/5526))
+- [Host] Restart toolstack: fix `ECONNREFUSED` error (PR [#5553](https://github.com/vatesfr/xen-orchestra/pull/5553))
 
 ### Packages to release
 

packages/xo-server/src/xo-mixins/api.js

@@ -342,10 +342,13 @@ export default class Api {
         Date.now() - startTime
       )}] =!> ${error}`
 
-      // 2020-07-10: Work-around: many kinds of error can be triggered by this
-      // method, which can generates a lot of logs due to the fact that xo-web
-      // uses 5s active subscriptions to call it
-      if (name !== 'pool.listMissingPatches') {
+      // 2020-07-10: Work-around: many kinds of error can be triggered by
+      // 'pool.listMissingPatches' method, which can generates a lot of logs due to the fact that xo-web
+      // uses 5s active subscriptions to call it.
+      // 2021-02-11: Work-around: ECONNREFUSED error can be triggered by
+      // 'host.stats' method because there is no connection to the host during a
+      // toolstack restart and xo-web may call it often
+      if (name !== 'pool.listMissingPatches' || name !== 'host.stats') {
         this._logger.error(message, {
           ...data,
           duration: Date.now() - startTime,