15_1.InetAddress

import java.net.InetAddress;
import java.net.UnknownHostException;

public class InetAdressTest {
    public static void main(String[] args) throws UnknownHostException {
        InetAddress address = InetAddress.getByName("www.baidu.com");
        //获取对象的域名和ip地址
        System.out.println(address);//www.baidu.com/61.135.169.125
        //获取对象所含的域名
        System.out.println("HostName:"+address.getHostName());//HostName:www.baidu.com
        //获取对象所含的ip地址
        System.out.println("HostAddress:"+address.getHostAddress());//HostAddress:61.135.169.125
        // 获取本机的域名和ip地址
        System.out.println("InetAddress.getLocalHost() = " + InetAddress.getLocalHost());
    }

}

转载于:https://www.cnblogs.com/fly-book/p/11543207.html

{"type": "server", "timestamp": "2025-06-06T01:48:11,770+0000", "level": "WARN", "component": "o.e.c.c.ClusterFormationFailureHelper", "cluster.name": "k8s-logs", "node.name": "es-cluster-0", "message": "master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [es-cluster-0, es-cluster-1, es-cluster-2] to bootstrap a cluster: have discovered []; discovery will continue using [] from hosts providers and [{es-cluster-0}{h2iaNMGyQcOspxpVKhnYUw}{JxxYbe5JSq65pjnC_B4GIw}{10.244.2.78}{10.244.2.78:9300}{ml.machine_memory=8201764864, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 0, last-accepted version 0 in term 0" } {"type": "server", "timestamp": "2025-06-06T01:48:14,764+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "k8s-logs", "node.name": "es-cluster-0", "message": "failed to resolve host [es-cluster-1.elasticsearch.kube-logging.svc.cluster.local]" , "stacktrace": ["java.net.UnknownHostException: es-cluster-1.elasticsearch.kube-logging.svc.cluster.local", "at java.net.InetAddress$CachedAddresses.get(InetAddress.java:797) ~[?:?]", "at java.net.InetAddress.getAllByName0(InetAddress.java:1505) ~[?:?]", "at java.net.InetAddress.getAllByName(InetAddress.java:1364) ~[?:?]", "at java.net.InetAddress.getAllByName(InetAddress.java:1298) ~[?:?]", "at org.elasticsearch.transport.TcpTransport.parse(TcpTransport.java:528) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.transport.TcpTransport.addressesFromString(TcpTransport.java:470) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.transport.TransportService.addressesFromString(TransportService.java:754) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.discovery.SeedHostsResolver.lambda$resolveHostsLists$0(SeedHostsResolver.java:141) ~[elasticsearch-7.2.0.jar:7.2.0]", "at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]", "at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:688) ~[elasticsearch-7.2.0.jar:7.2.0]", "at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]", "at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]", "at java.lang.Thread.run(Thread.java:835) [?:?]"] } {"type": "server", "timestamp": "2025-06-06T01:48:14,766+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "k8s-logs", "node.name": "es-cluster-0", "message": "timed out after [5s] resolving host [es-cluster-2.elasticsearch.kube-logging.svc.cluster.local]" } {"type": "server", "timestamp": "2025-06-06T01:48:15,766+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "k8s-logs", "node.name": "es-cluster-0", "message": "failed to resolve host [es-cluster-1.elasticsearch.kube-logging.svc.cluster.local]" , "stacktrace": ["java.net.UnknownHostException: es-cluster-1.elasticsearch.kube-logging.svc.cluster.local", "at java.net.InetAddress$CachedAddresses.get(InetAddress.java:797) ~[?:?]", "at java.net.InetAddress.getAllByName0(InetAddress.java:1505) ~[?:?]", "at java.net.InetAddress.getAllByName(InetAddress.java:1364) ~[?:?]", "at java.net.InetAddress.getAllByName(InetAddress.java:1298) ~[?:?]", "at org.elasticsearch.transport.TcpTransport.parse(TcpTransport.java:528) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.transport.TcpTransport.addressesFromString(TcpTransport.java:470) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.transport.TransportService.addressesFromString(TransportService.java:754) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.discovery.SeedHostsResolver.lambda$resolveHostsLists$0(SeedHostsResolver.java:141) ~[elasticsearch-7.2.0.jar:7.2.0]", "at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]", "at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:688) ~[elasticsearch-7.2.0.jar:7.2.0]", "at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]", "at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]", "at java.lang.Thread.run(Thread.java:835) [?:?]"] } {"type": "server", "timestamp": "2025-06-06T01:48:15,768+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "k8s-logs", "node.name": "es-cluster-0", "message": "failed to resolve host [es-cluster-2.elasticsearch.kube-logging.svc.cluster.local]" , "stacktrace": ["java.net.UnknownHostException: es-cluster-2.elasticsearch.kube-logging.svc.cluster.local", "at java.net.InetAddress$CachedAddresses.get(InetAddress.java:797) ~[?:?]", "at java.net.InetAddress.getAllByName0(InetAddress.java:1505) ~[?:?]", "at java.net.InetAddress.getAllByName(InetAddress.java:1364) ~[?:?]", "at java.net.InetAddress.getAllByName(InetAddress.java:1298) ~[?:?]", "at org.elasticsearch.transport.TcpTransport.parse(TcpTransport.java:528) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.transport.TcpTransport.addressesFromString(TcpTransport.java:470) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.transport.TransportService.addressesFromString(TransportService.java:754) ~[elasticsearch-7.2.0.jar:7.2.0]", "at org.elasticsearch.discovery.SeedHostsResolver.lambda$resolveHostsLists$0(SeedHostsResolver.java:141) ~[elasticsearch-7.2.0.jar:7.2.0]", "at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]", "at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:688) ~[elasticsearch-7.2.0.jar:7.2.0]", "at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]", "at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]", "at java.lang.Thread.run(Thread.java:835) [?:?]"] }
06-07
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