feat: add dns cache #2440

lib/core/dns-resolver.js

@@ -213,7 +213,7 @@ class DNSResolver {
     }
 
     if (cached.length === 0) {
-      const error = new Error(`cacheableLookup ENOTFOUND ${hostname}`)
+      const error = new Error(`DNSResolver ENOTFOUND ${hostname}`)
       error.code = 'ENOTFOUND'
       error.hostname = hostname
 
@@ -266,6 +266,10 @@ class DNSResolver {
       ignoreNoResultErrors(this._resolve6(hostname, ttl))
     ])
 
+    if (entries[0].status === 'rejected' && entries[1].status === 'rejected') {
+      throw entries[0].reason
+    }
+
     const A = entries[0].status === 'fulfilled' ? entries[0].value : []
     const AAAA = entries[1].status === 'fulfilled' ? entries[1].value : []
 
@@ -339,7 +343,7 @@ class DNSResolver {
       } catch (error) {
         this.lookupAsync = async () => {
           const cacheError = new Error(
-            'Cache Error. Please recreate the CacheableLookup instance.'
+            'Cache Error. Please recreate the DNSResolver instance.'
           )
           cacheError.cause = error