got it. now my cluster is all set :)
Thanks
> On Dec 18, 2015, at 5:04 PM, Matt Gilman <[email protected]> wrote:
>
> Sumo,
>
> It appears that while getting all the nodes stood up, there is no node that
> is assigned the primary role. NiFi will be in safe mode until a primary is
> established. If you go to the cluster table (accessed from the cluster icon
> in the upper right hand corner) you should be able to assign the primary
> role to one of the nodes in your cluster. This is done by clicking the
> ribbon icon in the row for the desired node.
>
> The primary node is responsible for running processors that are configured
> with the scheduling strategy of 'Primary Node Only'. When scheduled to run,
> these will only execute on that Node. This is useful if your using certain
> protocols that would be troublesome if multiple nodes executed concurrently
> (like [S]FTP for instance).
>
> Matt
>
> On Fri, Dec 18, 2015 at 7:26 PM, Sumanth Chinthagunta <[email protected]
> <mailto:[email protected]>>
> wrote:
>
>> 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]
>>
>> <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
