Question

我正在尝试按照以下Link配置3node安全的Nifi群集设置。

但是在启用SSL / LDAP之后，节点之间没有发生连接，我收到了以下错误。

    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

错误是群集中的一个节点正在尝试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握手协商期间对自身进行身份验证。这个错误有几个可能的原因：

节点未发送客户端证书。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。当您按照该链接中的说明操作时，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同一CA签名，并且CA将导入公共信任库。如果手动生成证书，请确保每个节点都信任它们（您可以使用OpenSSL＆＃39; s_client工具执行此操作）。

安全的Nifi群集设置

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