fix(xo-server/pool.listMissingPatches): don't log errors (#5149)

Work-around to avoid generating too many logs

CHANGELOG.unreleased.md

@@ -14,6 +14,7 @@
 - [Proxy] Don't use configured HTTP proxy to connect to XO proxy
 - [Backup with proxy] Correctly log job-level errors
 - [XO] Fix a few broken documentation links (PR [#5146](https://github.com/vatesfr/xen-orchestra/pull/5146))
+- [Patches] Don't log errors related to missing patches listing (PR [#5149](https://github.com/vatesfr/xen-orchestra/pull/5149))
 
 ### Packages to release
 

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

@@ -333,11 +333,16 @@ export default class Api {
         data.params
       )}) [${ms(Date.now() - startTime)}] =!> ${error}`
 
-      this._logger.error(message, {
-        ...data,
-        duration: Date.now() - startTime,
-        error: serializedError,
-      })
+      // 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 (method !== 'pool.listMissingPatches') {
+        this._logger.error(message, {
+          ...data,
+          duration: Date.now() - startTime,
+          error: serializedError,
+        })
+      }
 
       if (xo._config.verboseLogsOnErrors) {
         log.warn(message, { error })