Hi,
I encounter one "java.net.NoRouteToHostException: No route to host (Host
unreachable)" in *Nifi UI login page *.
The after debugging i realised when i am setting the proxy & port in
*System.setProperty("proxy address") & System.setProperty("port address") *in
my custom processor. then this issue is appearing .
The other way i also replicated when i am setting at the* jvm lable(in
bootstrap.conf file -Dhttp.proxyHost=address) *for nifi application this
exception is coming in nifi ui login page:, After removal of this argument
it works fine.
Could someone help me to understand what could be the issue.
Nifi version: 1.12.1
cluster : 3 node (amazon EC2 linux cluster)
*Detail exception from nifi-app.log:*
o.a.n.c.c.h.r.ThreadPoolRequestReplicator Failed to replicate request GET
/nifi-api/flow/current-user to "exampledumyserveraddress" due to
java.net.NoRouteToHostException: No route to host (Host unreachable)
2022-01-13 12:57:23,722 WARN [Replicate Request Thread-5]
o.a.n.c.c.h.r.ThreadPoolRequestReplicator
java.net.NoRouteToHostException: No route to host (Host unreachable)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
at
java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
at
java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
at
java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
at
java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
at java.base/java.net.Socket.connect(Socket.java:609)
at
okhttp3.internal.platform.Platform.connectSocket(Platform.java:130)
at
okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:263)
at
okhttp3.internal.connection.RealConnection.connectTunnel(RealConnection.java:235)
at
okhttp3.internal.connection.RealConnection.connect(RealConnection.java:177)
at
okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:224)
at
okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:108)
at
okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:88)
at
okhttp3.internal.connection.Transmitter.newExchange(Transmitter.java:169)
at
okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:41)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at
okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at
okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at
okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at
okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at
okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:229)
at okhttp3.RealCall.execute(RealCall.java:81)
at
org.apache.nifi.cluster.coordination.http.replication.okhttp.OkHttpReplicationClient.replicate(OkHttpReplicationClient.java:132)
at
org.apache.nifi.cluster.coordination.http.replication.okhttp.OkHttpReplicationClient.replicate(OkHttpReplicationClient.java:126)
at
org.apache.nifi.cluster.coordination.http.replication.ThreadPoolRequestReplicator.replicateRequest(ThreadPoolRequestReplicator.java:647)
at
org.apache.nifi.cluster.coordination.http.replication.ThreadPoolRequestReplicator$NodeHttpRequest.run(ThreadPoolRequestReplicator.java:839)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at
java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
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)
Thanks & Regards
--
Sanjeet Kumar Rath,
mob- +91 8777577470
