nifi-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Nathan Gough <>
Subject Re: NiFi fails on cluster nodes
Date Thu, 11 Oct 2018 13:12:12 GMT
You may also need to explicitly open ‘nifi.cluster.node.protocol.port’ on all nodes to
allow cluster communication for cluster heartbeats etc.


From: ashmeet kandhari <>
Reply-To: <>
Date: Thursday, October 11, 2018 at 9:09 AM
To: <>
Subject: Re: NiFi fails on cluster nodes


Hi Alexander,


Can you verify by pinging if the 3 nodes (tcp ping) or run nifi in standalone mode and see
if you can ping them from other 2 servers just to be sure if they can communicate with one


On Thu, Oct 11, 2018 at 11:49 AM Saip, Alexander (NIH/CC/BTRIS) [C] <>

How do I do that? The file on each node includes ‘’,
so I assume Zookeeper does start.


From: ashmeet kandhari <> 
Sent: Thursday, October 11, 2018 4:36 AM
Subject: Re: NiFi fails on cluster nodes


Can you see if zookeeper node is up and running and can connect to the nifi nodes


On Wed, Oct 10, 2018 at 7:34 PM Saip, Alexander (NIH/CC/BTRIS) [C] <>



We have three NiFi 1.7.1 nodes originally configured as independent instances, each on its
own server. There is no firewall between them. When I tried to build a cluster following instructions
here, NiFi failed to start on all of them, despite the fact that I even set
in the file on each node. Here is the error in the log files:


2018-10-10 13:57:07,506 INFO [main] org.apache.nifi.NiFi Launching NiFi...

2018-10-10 13:57:07,745 INFO [main] Determined default path to be '/opt/nifi-1.7.1/./conf/'

2018-10-10 13:57:07,748 INFO [main] Loaded 125 properties
from /opt/nifi-1.7.1/./conf/

2018-10-10 13:57:07,755 INFO [main] org.apache.nifi.NiFi Loaded 125 properties

2018-10-10 13:57:07,762 INFO [main] org.apache.nifi.BootstrapListener Started Bootstrap Listener,
Listening for incoming requests on port 43744

2018-10-10 13:59:15,056 ERROR [main] org.apache.nifi.NiFi Failure to launch NiFi due to
Connection timed out (Connection timed out) Connection timed out (Connection timed out)

        at Method)







        at org.apache.nifi.BootstrapListener.sendCommand(

        at org.apache.nifi.BootstrapListener.start(

        at org.apache.nifi.NiFi.<init>(

        at org.apache.nifi.NiFi.<init>(

        at org.apache.nifi.NiFi.main(

2018-10-10 13:59:15,058 INFO [Thread-1] org.apache.nifi.NiFi Initiating shutdown of Jetty
web server...

2018-10-10 13:59:15,059 INFO [Thread-1] org.apache.nifi.NiFi Jetty web server shutdown completed
(nicely or otherwise).


Without clustering, the instances had no problem starting. Since this is our first experiment
building a cluster, I’m not sure where to look for clues.


Thanks in advance,



View raw message