原文链接--知乎
http://ReplicationTaskProcessor : Network level connection to peer localhost; retrying after delay - Jasper的文章 - 知乎 https://zhuanlan.zhihu.com/p/579136628
1.问题描述：
2022-10-31 19:12:45.334 ERROR 5752 --- [get_localhost-1] c.n.e.cluster.ReplicationTaskProcessor : Network level connection to peer localhost; retrying after delay
com.sun.jersey.api.client.ClientHandlerException: org.apache.http.conn.ConnectTimeoutException: Connect to localhost:8081 timed out
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
at com.netflix.eureka.cluster.DynamicGZIPContentEncodingFilter.handle(DynamicGZIPContentEncodingFilter.java:48) ~[eureka-core-1.10.11.jar:1.10.11]
at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.10.11.jar:1.10.11]
at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.4.jar:1.19.4]
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.4.jar:1.19.4]
at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.4.jar:1.19.4]
at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:570) ~[jersey-client-1.19.4.jar:1.19.4]
at com.netflix.eureka.transport.JerseyReplicationClient.submitBatchUpdates(JerseyReplicationClient.java:117) ~[eureka-core-1.10.11.jar:1.10.11]
at com.netflix.eureka.cluster.ReplicationTaskProcessor.process(ReplicationTaskProcessor.java:80) ~[eureka-core-1.10.11.jar:1.10.11]
at com.netflix.eureka.util.batcher.TaskExecutors$BatchWorkerRunnable.run(TaskExecutors.java:190) [eureka-core-1.10.11.jar:1.10.11]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]
Caused by: org.apache.http.conn.ConnectTimeoutException: Connect to localhost:8081 timed out
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:123) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:605) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:440) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.13.jar:4.5.13]
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
... 10 common frames omitted
2022-10-31 19:12:52.818 INFO 5752 --- [hresholdUpdater] c.n.e.r.PeerAwareInstanceRegistryImpl : Current renewal threshold is : 8
2022-10-31 19:12:53.257 INFO 5752 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 15ms
2022-10-31 19:12:55.357 ERROR 5752 --- [et_localhost-12] c.n.e.cluster.ReplicationTaskProcessor : Network level connection to peer localhost; retrying after delay
2.解决方法：
在eureka服务的application.yml中
#如果启动报错了8761端口错误，就加下面的 service-url: defaultZone: http://localhost:8001/eureka #端口号必须跟上面的端口号一致