OK, I think you can ignore this report, its being triggered by a nagios
probe of the server.
On 29/1/2025 2:25 pm, Robert Cohen wrote:
Since upgrading from nifi 2.1.0 to nifi 2.2.0 I have noticed the
following stack dump appearing in my logs.
It isnt fatal, nifi appears to be working correctly.
2025-01-29 14:14:05,218 WARN [NiFi Web Server-127]
o.a.nifi.web.server.HostHeaderHandler Request URI
[https://odc-nifi-dev.nci.org.au:8443/]
Host Header [odc-nifi-dev.nci.org.au:8443] not valid
2025-01-29 14:14:05,218 WARN [NiFi Web Server-127]
org.eclipse.jetty.server.Response writeError: status=500,
message=java.lang.NullPointerException: Cannot invoke
"java.io.PrintWriter.println(String)" because "out" is null,
response=ErrorResponse@1abe7e68{500,GET@2bf25610
https://odc-nifi-dev.nci.org.au:8443/
HTTP/1.1}
java.lang.NullPointerException: Cannot invoke
"java.io.PrintWriter.println(String)" because "out" is null
at
org.apache.nifi.web.server.HostHeaderHandler.handle(HostHeaderHandler.java:192)
at org.eclipse.jetty.server.Handler$Sequence.handle(Handler.java:805)
at org.eclipse.jetty.server.Server.handle(Server.java:182)
at
org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662)
What I believe to be the relevant part of my nifi.properties is as
follows. I'll attach the full conf.
But this is the only part that specifies port 8443.
nifi is running in a container. I have a proxy on the host that is
listening on ports 443/444 and relayiing to 8443 in the container.
nifi.web.http.host=
nifi.web.http.port=
nifi.web.http.network.interface.default=
nifi.web.https.host=
nifi.web.https.port=8443
nifi.web.https.network.interface.default=
nifi.web.https.application.protocols=h2 http/1.1
nifi.web.jetty.working.directory=./work/jetty
nifi.web.jetty.threads=200
nifi.web.max.header.size=16 KB
nifi.web.proxy.context.path=
nifi.web.proxy.host=odc-nifi-dev.nci.org.au:443,odc-nifi-dev.nci.org.au:444
nifi.web.max.content.size=
nifi.web.max.requests.per.second=30000
nifi.web.max.access.token.requests.per.second=25
nifi.web.request.timeout=60 secs
nifi.web.request.ip.whitelist=
nifi.web.should.send.server.version=true
nifi.web.request.log.format=%{client}a - %u %t "%r" %s %O
"%{Referer}i" "%{User-Agent}i"
