安全Nifi集群设置

Question

我想通过以下Link配置3node安全Nifi集群设置。

但是在节点之间连接没有发生后启用SSL/LDAP，我得到以下错误。

2017-04-01 09:05:47,494 WARN [Clustering Tasks Thread-2] o.apache.nifi.controller.FlowController Failed to send heartbeat due to: org.apache.nifi.cluster.protocol.ProtocolException: Failed marshalling 'HEARTBEAT' protocol message due to: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 
2017-04-01 09:05:47,494 ERROR [Process Cluster Protocol Request-7] o.a.nifi.security.util.CertificateUtils The incoming request did not contain client certificates and thus the DN cannot be extracted. Check that the other endpoint is providing a complete client certificate chain 
2017-04-01 09:05:47,494 WARN [Process Cluster Protocol Request-7] o.a.n.c.p.impl.SocketProtocolListener Failed processing protocol message from HKLPATHAS02.hk.example.com due to org.apache.nifi.cluster.protocol.ProtocolException: java.security.cert.CertificateException: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated 
org.apache.nifi.cluster.protocol.ProtocolException: java.security.cert.CertificateException: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated 
     at org.apache.nifi.cluster.protocol.impl.SocketProtocolListener.getRequestorDN(SocketProtocolListener.java:221) ~[nifi-framework-cluster-protocol-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     at org.apache.nifi.cluster.protocol.impl.SocketProtocolListener.dispatchRequest(SocketProtocolListener.java:133) ~[nifi-framework-cluster-protocol-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     at org.apache.nifi.io.socket.SocketListener$2$1.run(SocketListener.java:136) [nifi-socket-utils-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_102] 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_102] 
     at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102] 
Caused by: java.security.cert.CertificateException: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated 
     at org.apache.nifi.security.util.CertificateUtils.extractPeerDNFromClientSSLSocket(CertificateUtils.java:306) ~[nifi-security-utils-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     at org.apache.nifi.security.util.CertificateUtils.extractPeerDNFromSSLSocket(CertificateUtils.java:261) ~[nifi-security-utils-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     at org.apache.nifi.cluster.protocol.impl.SocketProtocolListener.getRequestorDN(SocketProtocolListener.java:219) ~[nifi-framework-cluster-protocol-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     ... 5 common frames omitted 
Caused by: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated 
     at sun.security.ssl.SSLSessionImpl.getPeerCertificates(SSLSessionImpl.java:431) ~[na:1.8.0_102] 
     at org.apache.nifi.security.util.CertificateUtils.extractPeerDNFromClientSSLSocket(CertificateUtils.java:291) ~[nifi-security-utils-1.1.0.2.1.1.0-2.jar:1.1.0.2.1.1.0-2] 
     ... 7 common frames omitted 

请指导我解决这个问题。

Answer 1

错误是说集群中的一个节点试图与另一个节点建立心跳连接，但它没有提供有效的客户端证书，以便在TLS握手协商期间对其自身进行身份验证。这种错误有几种可能的原因：

• 该节点没有发送客户端证书。确保您的nifi.properties文件中存在nifi.security.needClientAuth=true和nifi.cluster.protocol.is.secure=true。
• 接收节点上的信任库不包含连接节点的公钥证书。当您遵循该链接的指示时，您是如何生成相应的证书的？使用Pierre描述的Apache NiFi TLS Toolkit应确保所有节点证书都由相同的CA签名，并且CA将导入到公共信任库中。如果您手动生成证书，请确保它们在每个节点上都受信任（可以使用OpenSSL的s_client工具执行此操作）。