jhk*_*rus 9 java spring-boot consul tls1.2 spring-cloud-consul
我正在使用新版本的 Ubuntu、Consul 和 Spring Boot 升级环境。乍一看,一切似乎都运行良好。该应用程序连接到 Consul,请求其配置并启动。然而,几分钟后,出现了一些中断,此消息大约每 2 秒重复一次:
com.ecwid.consul.transport.TransportException: javax.net.ssl.SSLHandshakeException: Remote host terminated the handshake
at com.ecwid.consul.transport.AbstractHttpTransport.executeRequest(AbstractHttpTransport.java:77)
at com.ecwid.consul.transport.AbstractHttpTransport.makeGetRequest(AbstractHttpTransport.java:34)
at com.ecwid.consul.v1.ConsulRawClient.makeGetRequest(ConsulRawClient.java:128)
at com.ecwid.consul.v1.catalog.CatalogConsulClient.getCatalogServices(CatalogConsulClient.java:120)
at com.ecwid.consul.v1.ConsulClient.getCatalogServices(ConsulClient.java:372)
at org.springframework.cloud.consul.discovery.ConsulCatalogWatch.catalogServicesWatch(ConsulCatalogWatch.java:129)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: javax.net.ssl.SSLHandshakeException: Remote host terminated the handshake
at java.base/sun.security.ssl.SSLSocketImpl.handleEOF(SSLSocketImpl.java:1313)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1152)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1055)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:395)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
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我追踪了消息每 2 秒出现一次到应用程序运行状况检查的事实。一旦错误第一次发生,它会在每次后续的健康检查中继续发生。这是通过关闭健康检查并重新启动来确认的。当达到 Consul-data 上的 TTL 时,这导致错误仅发生一次。
我对问题的理解到此结束。我试图将其追溯到几件事,但这些都没有找到解决方案:
curl
. 这似乎是一个死胡同。nc
显示这些端口是可访问的。-Djavax.net.debug=ssl:handshake
了解握手期间发生的情况。在最初的几分钟内,产生的额外输出在我看来就像正常的握手。一旦出现问题,握手的输出会在“生成客户端 Hello 消息”和“远程主机终止握手”之后立即停止。我无法对这个连接的另一端做同样的事情。Consul 是一个 Golang 应用程序。如果有人知道如何为 Golan 应用程序获取相同的调试信息,请提供建议。我希望有人知道如何找到这个问题的原因,或者更好的是,有一个解决方案。
经过更多的挖掘和尝试其他版本的事情之后。我发现使用 GraalVM 会产生不同的但更具描述性的错误。当尝试连接到 Consul 应用程序时,它会立即终止并显示以下消息:
Caused by: javax.net.ssl.SSLHandshakeException: extension (5) should not be presented in certificate_request
at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131)
at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:307)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:263)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:254)
at java.base/sun.security.ssl.SSLExtensions.<init>(SSLExtensions.java:90)
at java.base/sun.security.ssl.CertificateRequest$T13CertificateRequestMessage.<init>(CertificateRequest.java:818)
at java.base/sun.security.ssl.CertificateRequest$T13CertificateRequestConsumer.consume(CertificateRequest.java:922)
at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:421)
at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:177)
at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:164)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1151)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1062)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:402)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:71)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:220)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:164)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:139)
at com.ecwid.consul.transport.AbstractHttpTransport.executeRequest(AbstractHttpTransport.java:61)
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这让我在 Golang GitHub 页面上遇到了一个问题: https: //github.com/golang/go/issues/35722。它详细介绍了不同人提出的类似问题,但细节总是略有不同。在该线程中,提到了 Go 和 Java 之间的 TLS 1.3 实现之间的差异。OpenJDK 维护者也参与并参考了这个问题:https://bugs.openjdk.java.net/browse/JDK-8236039。
它已被修复并关闭,但在我的任何常规二进制发行版中尚不可用。我将尝试检查该版本是否确实解决了问题。但是,有一个解决方法,即强制 Java 仅使用 TLS1.2。-Djdk.tls.client.protocols=TLSv1.2
您可以通过添加到启动参数来做到这一点。
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