Github user ijokarumawak commented on a diff in the pull request:
https://github.com/apache/nifi/pull/688#discussion_r72561906
--- Diff:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-cluster/src/main/java/org/apache/nifi/cluster/coordination/heartbeat/ClusterProtocolHeartbeatMonitor.java
---
@@ -91,12 +91,8 @@ public ClusterProtocolHeartbeatMonitor(final
ClusterCoordinator clusterCoordinat
this.clusterNodesPath =
zkClientConfig.resolvePath("cluster/nodes");
String hostname =
properties.getProperty(NiFiProperties.CLUSTER_NODE_ADDRESS);
- if (hostname == null) {
- try {
- hostname = InetAddress.getLocalHost().getHostName();
- } catch (UnknownHostException e) {
- throw new RuntimeException("Unable to determine local
hostname and the '" + NiFiProperties.CLUSTER_NODE_ADDRESS + "' property is not
set");
- }
+ if (hostname == null || hostname.trim().isEmpty()) {
--- End diff --
There's another similar null check against port `if (port == null) {`. I
think it should be addressed, too.
We may be able to take advantage of our existing StringUtils.isBlank().
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