EVCACHE-454: Ideally, app should not serve traffic until it is healthy but this option - ignoreAppEurekaStatus will allow app to ignore application eureka status while trying to initialize evcache client. This feature may be required for applications which are behind load balancers. They may fail to register successfully with eureka but are still expected to serve traffic.

Author: arunagrawal84

evcache-client/src/main/java/com/netflix/evcache/pool/eureka/EurekaNodeListProvider.java

@@ -56,7 +56,14 @@ public EurekaNodeListProvider(ApplicationInfoManager applicationInfoManager, Eur
      */
     @Override
     public Map<ServerGroup, EVCacheServerGroupConfig> discoverInstances(String _appName) throws IOException {
-        if ((applicationInfoManager.getInfo().getStatus() == InstanceStatus.DOWN)) {
+        final Property<Boolean> ignoreAppEurekaStatus = props.get("evcache.ignoreAppEurekaStatus", Boolean.class).orElse(false);
+
+        if (ignoreAppEurekaStatus.get())
+            log.info("Not going to consider the eureka status of the application, to initialize evcache client.");
+
+        if (!ignoreAppEurekaStatus.get() && (applicationInfoManager.getInfo().getStatus() == InstanceStatus.DOWN)) {
+            log.info("Not initializing evcache client as application eureka status is DOWN. " +
+                    "One can override this behavior by setting evcache.ignoreAppEurekaStatus property to true, scoped to your application.");
             return Collections.<ServerGroup, EVCacheServerGroupConfig> emptyMap();
         }