Nifi-“拒绝连接"安装后在gui中 [英] Nifi - "Connection refused" in gui after installation
问题描述
我正在安装带有嵌入式Zookeeper的三节点非安全nifi集群(1.5).
I'm installing a three node non-secure nifi cluster (1.5) with embedded zookeeper.
安装已完成，集群的启动和选择已完成，没有任何明显的问题.
The installation has completed, the cluster startup up and election have finished, without any obvious issues.
但是当我点击gui时，我看到以下内容:
However when I hit the gui I see the following:
javax.ws.rs.ProcessingException:java.net.ConnectException:连接被拒绝(连接被拒绝)
javax.ws.rs.ProcessingException: java.net.ConnectException: Connection refused (Connection refused)
在nifi-apps.log中有:
In nifi-apps.log there is:
2018-03-07 14:41:37,857 WARN [Replicate Request Thread-7] o.a.n.c.c.h.r.ThreadPoolRequestReplicator Failed to replicate request GET /nifi-api/flow/current-user to test-nifi01:8080 due to javax.ws.rs.ProcessingException: java.net.ConnectException: Connection refused (Connection refused)
2018-03-07 14:41:37,858 WARN [Replicate Request Thread-7] o.a.n.c.c.h.r.ThreadPoolRequestReplicator
javax.ws.rs.ProcessingException: java.net.ConnectException: Connection refused (Connection refused)
at org.glassfish.jersey.client.internal.HttpUrlConnector.apply(HttpUrlConnector.java:284)
at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:278)
at org.glassfish.jersey.client.JerseyInvocation.lambda$invoke$0(JerseyInvocation.java:753)
....
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
....
在nifi-user.log中:
in nifi-user.log:
2018-03-07 15:18:49,475 INFO [NiFi Web Server-21] org.apache.nifi.web.filter.RequestLogger Attempting request for (<no user found>) POST http://test-nifi01:8080/nifi-api/access/kerberos (source ip: 172.100.1.11)
2018-03-07 15:18:49,476 INFO [NiFi Web Server-21] o.a.n.w.a.c.IllegalStateExceptionMapper java.lang.IllegalStateException: Access tokens are only issued over HTTPS.. Returning Conflict response.
2018-03-07 15:18:49,572 INFO [NiFi Web Server-17] org.apache.nifi.web.filter.RequestLogger Attempting request for (<no user found>) POST http://test-nifi01:8080/nifi-api/access/oidc/exchange (source ip: 172.100.1.11)
2018-03-07 15:18:49,573 INFO [NiFi Web Server-17] o.a.n.w.a.c.IllegalStateExceptionMapper java.lang.IllegalStateException: User authentication/authorization is only supported when running over HTTPS.. Returning Conflict response.
2018-03-07 15:18:49,672 INFO [NiFi Web Server-23] org.apache.nifi.web.filter.RequestLogger Attempting request for (anonymous) GET http://test-nifi01:8080/nifi-api/flow/current-user (source ip: 172.100.1.11)
无论我连接到哪个主机，结果都是相同的.
It's the same results regardless of what host I connect to.
我不确定我需要在这里检查什么.
I'm not sure what I need to be checking here.
更详细地更新.
Node1: https://pastebin.com/5nMzWfXw
# web properties #
nifi.web.war.directory=./lib
nifi.web.http.host=test-nifi01
nifi.web.http.port=8080
nifi.web.http.network.interface.default=eth0
nifi.web.https.host=
nifi.web.https.port=
nifi.web.https.network.interface.default=
nifi.web.jetty.working.directory=./work/jetty
nifi.web.jetty.threads=200
nifi.web.max.header.size=16 KB
nifi.web.proxy.context.path=
# cluster node properties (only configure for cluster nodes) #
nifi.cluster.is.node=true
nifi.cluster.node.address=test-nifi01
nifi.cluster.node.protocol.port=11003
nifi.cluster.node.protocol.threads=10
nifi.cluster.node.protocol.max.threads=50
nifi.cluster.node.event.history.size=25
nifi.cluster.node.connection.timeout=5 sec
nifi.cluster.node.read.timeout=5 sec
nifi.cluster.node.max.concurrent.requests=100
nifi.cluster.firewall.file=
nifi.cluster.flow.election.max.wait.time=5 mins
nifi.cluster.flow.election.max.candidates=
节点2: https://pastebin.com/n5GMy1nA
# web properties #
nifi.web.war.directory=./lib
nifi.web.http.host=test-nifi02
nifi.web.http.port=8080
nifi.web.http.network.interface.default=eth0
nifi.web.https.host=
nifi.web.https.port=
nifi.web.https.network.interface.default=
nifi.web.jetty.working.directory=./work/jetty
nifi.web.jetty.threads=200
nifi.web.max.header.size=16 KB
nifi.web.proxy.context.path=
# cluster node properties (only configure for cluster nodes) #
nifi.cluster.is.node=true
nifi.cluster.node.address=test-nifi02
nifi.cluster.node.protocol.port=11003
nifi.cluster.node.protocol.threads=10
nifi.cluster.node.protocol.max.threads=50
nifi.cluster.node.event.history.size=25
nifi.cluster.node.connection.timeout=5 sec
nifi.cluster.node.read.timeout=5 sec
nifi.cluster.node.max.concurrent.requests=100
nifi.cluster.firewall.file=
nifi.cluster.flow.election.max.wait.time=5 mins
nifi.cluster.flow.election.max.candidates=
节点3: https://pastebin.com/EqztLfnD
# web properties #
nifi.web.war.directory=./lib
nifi.web.http.host=test-nifi03
nifi.web.http.port=8080
nifi.web.http.network.interface.default=eth0
nifi.web.https.host=
nifi.web.https.port=
nifi.web.https.network.interface.default=
nifi.web.jetty.working.directory=./work/jetty
nifi.web.jetty.threads=200
nifi.web.max.header.size=16 KB
nifi.web.proxy.context.path=
# cluster node properties (only configure for cluster nodes) #
nifi.cluster.is.node=true
nifi.cluster.node.address=test-nifi03
nifi.cluster.node.protocol.port=11003
nifi.cluster.node.protocol.threads=10
nifi.cluster.node.protocol.max.threads=50
nifi.cluster.node.event.history.size=25
nifi.cluster.node.connection.timeout=5 sec
nifi.cluster.node.read.timeout=5 sec
nifi.cluster.node.max.concurrent.requests=100
nifi.cluster.firewall.file=
nifi.cluster.flow.election.max.wait.time=5 mins
nifi.cluster.flow.election.max.candidates=
有人对我应该看的东西有什么想法吗?
Anyone have any thoughts on what I should be looking at?
似乎每个节点都拒绝连接到自身.例如在节点2上
It's looks like each node is refusing to connect to itself. E.g on node 2 we have
2018-03-07 20:31:08,099 WARN [Replicate Request Thread-4] o.a.n.c.c.h.r.ThreadPoolRequestReplicator Failed to replicate request GET /nifi-api/flow/current-user to test-nifi02:8080 due to javax.ws.rs.ProcessingException: java.net.ConnectException: Connection refused (Connection refused)
并且卷曲也会失败: [taas @ test-nifi02日志] $ curl http://test-nifi02:8080 curl:(7)无法连接至test-nifi02:8080；连接被拒绝
and a curl also fails: [taas@test-nifi02 logs]$ curl http://test-nifi02:8080 curl: (7) Failed connect to test-nifi02:8080; Connection refused
卷曲到其他节点就可以了.每个节点上都发生相同的行为，例如，node1不能卷曲到node1，node3不能卷曲到node3.
Curls to the other nodes are fine. The same behavior is occurring on each node, e,g node1 can't curl to node1 and node3 can't curl to node3.
推荐答案
确保已为网络/子网启用了dns.如果您没有dns，请尝试使用确切的IP地址和主机名更新/etc/hosts文件
Make sure you have dns enabled for network/subnet . if you dont have luxury of dns try updating /etc/hosts files with the exact ip address and hostnames
例如:
192.168.0.1 test-nifi01 192.168.0.2 test-nifi02
192.168.0.1 test-nifi01 192.168.0.2 test-nifi02
然后尝试连接它.并确保检查是否可以通过ssh
in all the hosts of the nifi nodes then try connecting it. and also make sure to check if you can able to connect from one node to another node by using shell via ssh
这篇关于Nifi-“拒绝连接"安装后在gui中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
