2021-04-1415:52:18.630 ERROR 23630 --- [ain-EventThread] o.a.c.f.imps.CuratorFrameworkImpl : Background exception was not retry-able or retry gave up
java.lang.NullPointerException: null at org.apache.curator.utils.Compatibility.getHostAddress(Compatibility.java:116) ~[curator-client-5.1.0.jar:na] at org.apache.curator.framework.imps.EnsembleTracker.configToConnectionString(EnsembleTracker.java:185) ~[curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.EnsembleTracker.processConfigData(EnsembleTracker.java:206) ~[curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.EnsembleTracker.access$300(EnsembleTracker.java:50) ~[curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.EnsembleTracker$2.processResult(EnsembleTracker.java:150) ~[curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:892) [curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:649) [curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.WatcherRemovalFacade.processBackgroundOperation(WatcherRemovalFacade.java:152) [curator-framework-5.1.0.jar:5.1.0] at org.apache.curator.framework.imps.GetConfigBuilderImpl$2.processResult(GetConfigBuilderImpl.java:222) [curator-framework-5.1.0.jar:5.1.0] at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:630) [zookeeper-3.6.0.jar:3.6.0] at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:551) [zookeeper-3.6.0.jar:3.6.0]