Issue 1:
in my NiFi installation I granted only read access to NIFI_HOME/lib and I got
this error while trying to start NiFi.
This got resolved when I gave read+write access to NIFI_HOME/lib. this makes me
wonder why NiFi start process needs write access to lib folder!
INFO [main] org.apache.nifi.BootstrapListener Successfully initiated
communication with Bootstrap
WARN [main] org.apache.nifi.nar.NarUnpacker Unable to load NAR library bundles
due to java.io.IOException: /software/nifi-node1/./lib directory does not have
read/write privilege Will proceed without loading any further Nar bundles
ERROR [main] org.apache.nifi.NiFi Failure to launch NiFi due to
java.lang.IllegalStateException: Unable to find the framework NAR ClassLoader.
java.lang.IllegalStateException: Unable to find the framework NAR ClassLoader.
at org.apache.nifi.NiFi.<init>(NiFi.java:116)
~[nifi-runtime-0.4.0.jar:0.4.0]
at org.apache.nifi.NiFi.main(NiFi.java:227)
~[nifi-runtime-0.4.0.jar:0.4.0]
INFO [Thread-1] org.apache.nifi.NiFi Initiating shutdown of Jetty web server...
INFO [Thread-1] org.apache.nifi.NiFi Jetty web server shutdown completed
(nicely or otherwise).
Issue 2:
Server 1 : NCM , node1
Server 2 : node2
Case 1: I started NiFi NCM on server 1 and then node2 on server 2. when you
access admin UI, you will see error even node2 and NCM are communicating.
Case 2: I started NiFi NCM and then node1 on server 1. Admin UI works as
expected.
My workaround was, to set nifi.web.http.host to hostname instead of leaving to
default ‘localhost’ on Server2. this should be documented.
Issue 3:
After above issues are resolved, now I see both node1 and node2 connected to
NCM. when I try to add any processors or process group, I am getting following
error in the browser UI:
Cluster is unable to service request to change flow: Received a mutable request
[PUT --
http://xyz:8090/nifi-api/controller/process-groups/77afb88b-5f7d-45d7-a1f4-f9e9269b489b/processors/bceff62d-435d-4c47-a907-bb2a26cd0e56]
<http://xyz:8090/nifi-api/controller/process-groups/77afb88b-5f7d-45d7-a1f4-f9e9269b489b/processors/bceff62d-435d-4c47-a907-bb2a26cd0e56]>
while in safe mode
please let me know if you find anything wrong with my setup.
Thanks
Sumo
> On Dec 18, 2015, at 11:37 AM, Sumanth Chinthagunta <[email protected]> wrote:
>
> Thanks Corey and Mark for quick response.
>
> You are right, I was sharing some folders using symbolic links between NCM
> and Node1. After removing sharing for bin folder, it works fine :)
>
> NCM/Node1
> bin -> /software/nifi/latest/bin/
> conf
> content_repository
> database_repository
> docs -> /software/nifi/latest/docs/
> flowfile_repository
> lib -> /software/nifi/latest/lib/
> logs
> provenance_repository
> work
>
> Thanks
> Sumo
>
>> On Dec 18, 2015, at 10:05 AM, Mark Payne <[email protected]> wrote:
>>
>> Sumo,
>>
>> When you say "I created two copies of Nifi 0.4.0 folders on Server1" does
>> that mean that you made a copy of the first directory, or
>> that you untarred the .tar.gz again?
>>
>> It looks like the same nifi.pid file is in the bin/ directory of both
>> instances. You should be able to delete the nifi.pid file from the node
>> and then start it up.
>>
>> Thanks
>> -Mark
>>
>>
>>> On Dec 18, 2015, at 12:59 PM, Sumanth Chinthagunta <[email protected]>
>>> wrote:
>>>
>>>
>>> Hi
>>> I am following clustering instructions as per the link below: NCM, Node1
>>> in Server1 and Node2 on Server2.
>>> https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#clustering
>>>
>>> <https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#clustering>
>>>
>>> I created two copies of Nifi 0.4.0 folders on Server1 and started NCM, then
>>> tried to start Node1 and got the following error.
>>> Error:
>>> org.apache.nifi.bootstrap.Command Apache NiFi is already running, listening
>>> to Bootstrap on port 43010
>>>
>>> Am I missing any steps?
>>> Thanks
>>> Sumo
>>>
>>
>
