can not run Apache nifi on Windows

6
votes

In my current project, I have been using apache nifi for some experiments purpose. When I have configured the first time. The nifi was running perfect (I was able to see the canvas, toolbar on Google Chrome when I typed http://localhost:8080/nifi/ ). But, after restarting my computer once, I am not able to run it.

When I type nifi.0.7.0\bin\run-nifi.bat command, I see the following message on the console. 

2016-07-27 10:19:39,246 INFO [main] org.apache.nifi.bootstrap.Command Starting A
pache NiFi...
2016-07-27 10:19:39,246 INFO [main] org.apache.nifi.bootstrap.Command Working Di
rectory: C:\NIFI-0~1.0
2016-07-27 10:19:39,246 INFO [main] org.apache.nifi.bootstrap.Command Command: C
:\Program Files\Java\jdk1.8.0_102\bin\java.exe -classpath C:\NIFI-0~1.0\.\conf;C
:\NIFI-0~1.0\.\lib\jcl-over-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\jul-to-slf4j-1.
7.12.jar;C:\NIFI-0~1.0\.\lib\log4j-over-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\log
back-classic-1.1.3.jar;C:\NIFI-0~1.0\.\lib\logback-core-1.1.3.jar;C:\NIFI-0~1.0\
.\lib\nifi-api-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-documentation-0.7.0.jar;C:\NIF
I-0~1.0\.\lib\nifi-nar-utils-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-properties-0.7.0
.jar;C:\NIFI-0~1.0\.\lib\nifi-runtime-0.7.0.jar;C:\NIFI-0~1.0\.\lib\slf4j-api-1.
7.12.jar -Dorg.apache.jasper.compiler.disablejsr199=true -Xmx512m -Xms512m -Dsun
.net.http.allowRestrictedHeaders=true -Djava.net.preferIPv4Stack=true -Djava.awt
.headless=true -Djava.protocol.handler.pkgs=sun.net.www.protocol -Dnifi.properti
es.file.path=C:\NIFI-0~1.0\.\conf\nifi.properties -Dnifi.bootstrap.listen.port=4
9823 -Dapp=NiFi -Dorg.apache.nifi.bootstrap.config.log.dir=C:\NIFI-0~1.0\bin\..\
\logs org.apache.nifi.NiFi

Could you please advise me what is the problem? and how could I resolve the issue?

More more information, the content of nifi-app.log is as follows:

2016-07-31 17:47:52,531 INFO [main] org.apache.nifi.NiFi Launching NiFi...
2016-07-31 17:47:52,687 INFO [main] org.apache.nifi.BootstrapListener Started Bootstrap Listener, Listening for incoming requests on port 54877
2016-07-31 17:47:52,718 INFO [main] org.apache.nifi.BootstrapListener Successfully initiated communication with Bootstrap
2016-07-31 17:58:20,339 INFO [main] org.apache.nifi.NiFi Launching NiFi...
2016-07-31 17:58:20,464 INFO [main] org.apache.nifi.BootstrapListener Started Bootstrap Listener, Listening for incoming requests on port 49217
2016-07-31 17:58:20,480 INFO [main] org.apache.nifi.BootstrapListener Successfully initiated communication with Bootstrap

The content of nifi-bootstrap.log is as follows:

2016-07-31 17:47:52,013 INFO [main] o.a.n.b.NotificationServiceManager Successfully loaded the following 0 services: []
2016-07-31 17:47:52,013 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_STARTED
2016-07-31 17:47:52,013 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_STOPPED
2016-07-31 17:47:52,013 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_DIED
2016-07-31 17:47:52,029 INFO [main] org.apache.nifi.bootstrap.Command Starting Apache NiFi...
2016-07-31 17:47:52,029 INFO [main] org.apache.nifi.bootstrap.Command Working Directory: C:\NIFI-0~1.0
2016-07-31 17:47:52,029 INFO [main] org.apache.nifi.bootstrap.Command Command: C:\Program Files\Java\jdk1.8.0_102\bin\java.exe -classpath C:\NIFI-0~1.0\.\conf;C:\NIFI-0~1.0\.\lib\jcl-over-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\jul-to-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\log4j-over-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\logback-classic-1.1.3.jar;C:\NIFI-0~1.0\.\lib\logback-core-1.1.3.jar;C:\NIFI-0~1.0\.\lib\nifi-api-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-documentation-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-nar-utils-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-properties-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-runtime-0.7.0.jar;C:\NIFI-0~1.0\.\lib\slf4j-api-1.7.12.jar -Dorg.apache.jasper.compiler.disablejsr199=true -Xmx512m -Xms512m -Dsun.net.http.allowRestrictedHeaders=true -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Djava.protocol.handler.pkgs=sun.net.www.protocol -Dnifi.properties.file.path=C:\NIFI-0~1.0\.\conf\nifi.properties -Dnifi.bootstrap.listen.port=54876 -Dapp=NiFi -Dorg.apache.nifi.bootstrap.config.log.dir=C:\NIFI-0~1.0\bin\..\\logs org.apache.nifi.NiFi 
2016-07-31 17:47:52,702 WARN [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Failed to set permissions so that only the owner can read status file C:\NIFI-0~1.0\bin\..\run\nifi.pid; this may allows others to have access to the key needed to communicate with NiFi. Permissions should be changed so that only the owner can read this file
2016-07-31 17:47:52,718 INFO [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Apache NiFi now running and listening for Bootstrap requests on port 54877
2016-07-31 17:55:03,208 INFO [main] org.apache.nifi.bootstrap.RunNiFi NiFi never started. Will not restart NiFi
2016-07-31 17:58:18,870 INFO [main] o.a.n.b.NotificationServiceManager Successfully loaded the following 0 services: []
2016-07-31 17:58:18,870 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_STARTED
2016-07-31 17:58:18,870 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_STOPPED
2016-07-31 17:58:18,870 INFO [main] org.apache.nifi.bootstrap.RunNiFi Registered no Notification Services for Notification Type NIFI_DIED
2016-07-31 17:58:19,915 INFO [main] org.apache.nifi.bootstrap.Command Starting Apache NiFi...
2016-07-31 17:58:19,915 INFO [main] org.apache.nifi.bootstrap.Command Working Directory: C:\NIFI-0~1.0
2016-07-31 17:58:19,915 INFO [main] org.apache.nifi.bootstrap.Command Command: C:\Program Files\Java\jdk1.8.0_102\bin\java.exe -classpath C:\NIFI-0~1.0\.\conf;C:\NIFI-0~1.0\.\lib\jcl-over-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\jul-to-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\log4j-over-slf4j-1.7.12.jar;C:\NIFI-0~1.0\.\lib\logback-classic-1.1.3.jar;C:\NIFI-0~1.0\.\lib\logback-core-1.1.3.jar;C:\NIFI-0~1.0\.\lib\nifi-api-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-documentation-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-nar-utils-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-properties-0.7.0.jar;C:\NIFI-0~1.0\.\lib\nifi-runtime-0.7.0.jar;C:\NIFI-0~1.0\.\lib\slf4j-api-1.7.12.jar -Dorg.apache.jasper.compiler.disablejsr199=true -Xmx512m -Xms512m -Dsun.net.http.allowRestrictedHeaders=true -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Djava.protocol.handler.pkgs=sun.net.www.protocol -Dnifi.properties.file.path=C:\NIFI-0~1.0\.\conf\nifi.properties -Dnifi.bootstrap.listen.port=49216 -Dapp=NiFi -Dorg.apache.nifi.bootstrap.config.log.dir=C:\NIFI-0~1.0\bin\..\\logs org.apache.nifi.NiFi 
2016-07-31 17:58:20,480 WARN [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Failed to set permissions so that only the owner can read status file C:\NIFI-0~1.0\bin\..\run\nifi.pid; this may allows others to have access to the key needed to communicate with NiFi. Permissions should be changed so that only the owner can read this file
2016-07-31 17:58:20,480 INFO [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Apache NiFi now running and listening for Bootstrap requests on port 49217

and nifi-user.log is Empty.

When I try to call localhost:8080/nifi/, I see the following. enter image description here

5
javaapache-nifi
are you able to apache nifi in browser ? - gks
I dont see any errors in the above logs . just check the status of nifi .. To see the current status of NiFi, double-click status-nifi.bat - gks
You should have a look at the nifi-app.log file in the log directory. There are also a few other log files in there that might be worth a look. - Binary Nerd
The output you're showing is what is printed always on startup. Please take a look in the logs/nifi-bootstrap.log and if there is nothing of interest there then take look in nifi-app.log. If there was a failure on startup you will see information about it there. - Joe Witt
I had the same. The solution seems to be that you have to wait a while, a full minute or more, then refresh the url. Basically keep trying and the "site can't be reached" will finally go away and nifi will appear. - J Woodchuck

5 Answers

8
votes

Try to check if the config file have the following key "nifi.sensitive.props.key=" with a value. If it's empty, please set a key like the example "nifi.sensitive.props.key=132134".

If your still are in troulbe, please watch this video, should help. https://www.youtube.com/watch?v=DDd6KayUHt8

All the best.

7
votes

Besides the previous comment which helped me fix the problem, you have also to give it a little time as it has been discussed here https://community.hortonworks.com/questions/107192/nifi-web-ui-not-working-facing-error-err-connectio.html. Indeed, after starting Nifi, the Web interface is not immediately reachable, Nifi needs a period of time to initialize all its stuff. You can follow the execution of Nifi by visiting the log file called: nifi-app.log which you can find in NIFI_HOME/logs. I think the message: org.apache.nifi.NiFi Controller initialization took 132792678105 nanoseconds (132 seconds) is the good sign that Nifi Web interface is ready to be used.

2
votes

I was also facing the issue initially but then looking at logs, url was http://127.0.0.1:8080/nifi and it worked instead of localhost

0
votes

Nifi takes some time to start it. Looking at the logs it seems that there are no error while starting. Try to call localhost:8080/nifi after 5 minutes or late. Hope that you will be able to see NiFi-UI after that.

0
votes

The UI takes time to load up, as it will trigger JAVA console and then you have to accept. Post that you can access the url at localhost:8080/nifi