I've 3 node cluster running on RHEL 6.5. I've not made any changes to the cluster recently. When I start nifi on one of the nodes I'm getting below error in in the "nifi-bootstrap.log" log.
2016-02-18 10:24:51,400 INFO [main] org.apache.nifi.bootstrap.Command Command: /usr/jdk64/jdk1.8.0_40/bin/java -classpath /opt/nifi-0.4.1/./conf:/opt/nifi-0.4.1/./lib/nifi-documentation-0.4.1.jar:/opt/nifi-0.4.1/./lib/logback-classic-1.1.3.jar:/opt/nifi-0.4.1/./lib/log4j-over-slf4j-1.7.12.jar:/opt/nifi-0.4.1/./lib/nifi-properties-0.4.1.jar:/opt/nifi-0.4.1/./lib/logback-core-1.1.3.jar:/opt/nifi-0.4.1/./lib/nifi-nar-utils-0.4.1.jar:/opt/nifi-0.4.1/./lib/jul-to-slf4j-1.7.12.jar:/opt/nifi-0.4.1/./lib/slf4j-api-1.7.12.jar:/opt/nifi-0.4.1/./lib/nifi-runtime-0.4.1.jar:/opt/nifi-0.4.1/./lib/nifi-api-0.4.1.jar:/opt/nifi-0.4.1/./lib/jcl-over-slf4j-1.7.12.jar -Dorg.apache.jasper.compiler.disablejsr199=true -Xmx8g -Xms8g -Dsun.net.http.allowRestrictedHeaders=true -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -XX:+UseG1GC -Djava.protocol.handler.pkgs=sun.net.www.protocol -Dnifi.properties.file.path=/opt/nifi-0.4.1/./conf/nifi.properties -Dnifi.bootstrap.listen.port=19793 -Dapp=NiFi org.apache.nifi.NiFi 2016-02-18 10:24:51,907 INFO [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Apache NiFi now running and listening for Bootstrap requests on port 26928 2016-02-18 10:25:10,235 ERROR [NiFi logging handler] org.apache.nifi.StdErr Failed to start web server: Unable to start Flow Controller. 2016-02-18 10:25:10,235 ERROR [NiFi logging handler] org.apache.nifi.StdErr Shutting down... 2016-02-18 10:25:11,416 INFO [main] org.apache.nifi.bootstrap.RunNiFi NiFi never started. Will not restart NiFi nifi-app.log <http://apache-nifi-developer-list.39713.n7.nabble.com/file/n7480/nifi-app.log> I'm also attaching "nifi-app.log" file. -- View this message in context: http://apache-nifi-developer-list.39713.n7.nabble.com/ERROR-NiFi-logging-handler-org-apache-nifi-StdErr-Failed-to-start-web-server-Unable-to-start-Flow-Co-tp7480.html Sent from the Apache NiFi Developer List mailing list archive at Nabble.com.
