[GitHub] [accumulo] keith-turner commented on a change in pull request #2374: Cache the credentials because they are expensive to fetch

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

keith-turner commented on a change in pull request #2374:
URL: https://github.com/apache/accumulo/pull/2374#discussion_r761266670



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File path: server/base/src/main/java/org/apache/accumulo/server/ServerInfo.java
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@@ -176,7 +177,10 @@ public String getInstanceName() {
   }
 
   public Credentials getCredentials() {
-    return SystemCredentials.get(getInstanceID(), getSiteConfiguration());
+    if (credentials == null) {
+      credentials = SystemCredentials.get(getInstanceID(), getSiteConfiguration());

Review comment:
       This probably needs sync, volatile, or an AtomicReference to be thread safe.
   
   This comment may be moot because of the other comment @ctubbsii  made about moving this to the constructor which would make it thread safe.




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