NiFi doesnt start on red-hat 6.8

[#1]

Hi,

I am trying to install NiFi on redhat 6.8 withing following steps

wget http://public-repo-1.hortonworks.com/HDF/2.0.1.0/HDF-2.0.1.0-12.tar.gz
tar -zxf HDF-2.0.1.0-12.tar.gz
cd HDF-2.0.1.0-12/nifi
bin/nifi.sh start

After this I see following messages in logs

[root@abc000732 nifi]# tailf logs/nifi-bootstrap.log
2016-11-29 20:06:03,579 INFO [main] org.apache.nifi.bootstrap.RunNiFi NiFi never started. Will not restart NiFi
2016-11-29 20:07:11,636 INFO [main] o.a.n.b.NotificationServiceManager Successfully loaded the following 0 services: []
2016-11-29 20:07:11,639 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_STARTED
2016-11-29 20:07:11,639 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_STOPPED
2016-11-29 20:07:11,639 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_DIED
2016-11-29 20:07:11,657 INFO [main] org.apache.nifi.bootstrap.Command Starting Apache NiFi...
2016-11-29 20:07:11,657 INFO [main] org.apache.nifi.bootstrap.Command Working Directory: /opt/HDF-2.0.1.0/nifi
2016-11-29 20:07:11,657 INFO [main] org.apache.nifi.bootstrap.Command Command: java -classpath /opt/HDF-2.0.1.0/nifi/./conf:/opt/HDF-2.0.1.0/nifi/./lib/nifi-documentation-1.0.0.2.0.1.0-12.jar:/opt/HDF-2.0.1.0/nifi/./lib/logback-classic-1.1.3.jar:/opt/HDF-2.0.1.0/nifi/./lib/nifi-api-1.0.0.2.0.1.0-12.jar:/opt/HDF-2.0.1.0/nifi/./lib/nifi-nar-utils-1.0.0.2.0.1.0-12.jar:/opt/HDF-2.0.1.0/nifi/./lib/slf4j-api-1.7.12.jar:/opt/HDF-2.0.1.0/nifi/./lib/nifi-properties-1.0.0.2.0.1.0-12.jar:/opt/HDF-2.0.1.0/nifi/./lib/commons-lang3-3.4.jar:/opt/HDF-2.0.1.0/nifi/./lib/nifi-properties-loader-1.0.0.2.0.1.0-12.jar:/opt/HDF-2.0.1.0/nifi/./lib/nifi-framework-api-1.0.0.2.0.1.0-12.jar:/opt/HDF-2.0.1.0/nifi/./lib/logback-core-1.1.3.jar:/opt/HDF-2.0.1.0/nifi/./lib/jul-to-slf4j-1.7.12.jar:/opt/HDF-2.0.1.0/nifi/./lib/log4j-over-slf4j-1.7.12.jar:/opt/HDF-2.0.1.0/nifi/./lib/jcl-over-slf4j-1.7.12.jar:/opt/HDF-2.0.1.0/nifi/./lib/bcprov-jdk15on-1.54.jar:/opt/HDF-2.0.1.0/nifi/./lib/nifi-runtime-1.0.0.2.0.1.0-12.jar -Dorg.apache.jasper.compiler.disablejsr199=true -Xmx512m -Xms512m -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/HDF-2.0.1.0/nifi/./conf/nifi.properties -Dnifi.bootstrap.listen.port=19169 -Dapp=NiFi -Dorg.apache.nifi.bootstrap.config.log.dir=/opt/HDF-2.0.1.0/nifi/logs org.apache.nifi.NiFi
2016-11-29 20:07:12,102 INFO [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Apache NiFi now running and listening for Bootstrap requests on port 52062
2016-11-29 20:07:14,687 INFO [main] org.apache.nifi.bootstrap.RunNiFi NiFi never started. Will not restart NiFi

[root@abc000732 nifi]# tailf logs/nifi-app.log
2016-11-29 20:07:13,939 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-standard-services-api-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-standard-services-api-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,941 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-enrich-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-enrich-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,944 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-elasticsearch-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-elasticsearch-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,949 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-standard-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-standard-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,950 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-avro-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-avro-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,951 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-amqp-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-amqp-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,961 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-hive-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-hive-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,962 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-riemann-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-riemann-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,963 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/./work/nar/extensions/nifi-scripting-nar-1.0.0.2.0.1.0-12.nar-unpacked as class loader org.apache.nifi.nar.NarClassLoader[./work/nar/extensions/nifi-scripting-nar-1.0.0.2.0.1.0-12.nar-unpacked]
2016-11-29 20:07:13,965 INFO [main] org.apache.nifi.nar.NarClassLoaders Loaded NAR file: /opt/HDF-2.0.1.0/nifi/

I have oracle java (1.8.0_60) installed on this VM and iptables is off and selinux is disabled.

Anyone know whats wrong with this. Same steps works on Centos 6.8

[#2 · Accepted solution]

Please check in the nifi-app.log file, not bootstrap. Most probably there is a service in your host already taking the 8080 port. You can edit conf/nifi.properties and modify the port to a non-conflicting one.

[#3]

added logs to my question.

[#4]

Ok, it looks like an environmental issue with random entropy collection. There are several ways to solve it, pick your choice based on prod/non-prod requirements. There was a previous discussion with some suggestions here: https://community.hortonworks.com/questions/58436/hdf-20-handing-on-restart.html