Nifi - “连接被拒绝"安装后在gui中 [英] Nifi - "Connection refused" in gui after installation
问题描述
我正在安装一个带有嵌入式 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.
安装完成，集群启动和选举已经完成，没有任何明显问题.
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)
无论我连接到什么主机，结果都是一样的.
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.
更新了更多细节.
节点 1: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=
有人对我应该看什么有任何想法吗?
Anyone have any thoughts on what I should be looking at?
编辑 2:
看起来每个节点都拒绝连接到自己.例如在节点 2 上我们有
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 curl 也失败了:[taas@test-nifi02 日志]$ curl http://test-nifi02:8080curl: (7) 连接到 test-nifi02:8080 失败；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
到其他节点的卷曲很好.每个节点上都发生了相同的行为，例如，节点 1 无法卷曲到节点 1，节点 3 无法卷曲到节点 3.
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
确保您为 network/subnet 启用了 dns.如果您没有足够的 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 测试-nifi01192.168.0.2 测试-nifi02
192.168.0.1 test-nifi01 192.168.0.2 test-nifi02
在 nifi 节点的所有主机中，然后尝试连接它.并确保检查您是否可以通过 ssh 使用 shell 从一个节点连接到另一个节点
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 - “连接被拒绝"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！
