I found the issue . Uncommented the parameter java.arg.11 in bootstrap.conf
which resolved the issue. Now the template runs fine.


Thanks
Koustav

On Thu, Aug 18, 2016 at 1:57 PM, koustav choudhuri <koustav1...@gmail.com>
wrote:

> Hi Matt
>
> This is what I did :
>
> Removed the NIFI directory and killed all the related processes.
> Installed Nifi 0.7
> started the service
> imported your template JythonJsonToJsonExample and started the job
>
> This is when the web server stops responding.
>
> Errors from bootstrap.log:
> 2016-08-18 20:49:44,138 ERROR [NiFi logging handler] org.apache.nifi.StdErr
> 2016-08-18 20:49:44,138 ERROR [NiFi logging handler]
> org.apache.nifi.StdErr Exception: java.lang.OutOfMemoryError thrown from
> the UncaughtExceptionHandler in thread "NiFi Web Server-93"
> 2016-08-18 20:49:44,347 ERROR [NiFi logging handler] org.apache.nifi.StdErr
> 2016-08-18 20:49:44,347 ERROR [NiFi logging handler]
> org.apache.nifi.StdErr Exception: java.lang.OutOfMemoryError thrown from
> the UncaughtExceptionHandler in thread "NiFi Web Server-113"
> 2016-08-18 20:50:21,388 ERROR [NiFi logging handler] org.apache.nifi.StdErr
> 2016-08-18 20:50:21,388 ERROR [NiFi logging handler]
> org.apache.nifi.StdErr Exception: java.lang.OutOfMemoryError thrown from
> the UncaughtExceptionHandler in thread "NiFi Web Server-118"
> 2016-08-18 20:50:21,787 ERROR [NiFi logging handler] org.apache.nifi.StdErr
> 2016-08-18 20:50:21,787 ERROR [NiFi logging handler]
> org.apache.nifi.StdErr Exception: java.lang.OutOfMemoryError thrown from
> the UncaughtExceptionHandler in thread "NiFi Web Server-120"
>
>
> Errors from nifi-app.log:
>
>
> 2016-08-18 20:49:41,987 WARN [NiFi Web Server-112] 
> o.e.jetty.util.thread.QueuedThreadPool
> Unexpected thread death: org.eclipse.jetty.util.thread.
> QueuedThreadPool$3@54b057d5 in NiFi Web Server{STARTED,8<=13<=200,i=3,q=0}
> 2016-08-18 20:49:41,987 ERROR [NiFi Web Server-112] org.apache.nifi.NiFi
> An Unknown Error Occurred in Thread Thread[NiFi Web Server-112,5,main]:
> java.lang.OutOfMemoryError: PermGen space
> 2016-08-18 20:49:42,759 WARN [NiFi Web Server-111] 
> o.e.jetty.util.thread.QueuedThreadPool
> Unexpected thread death: org.eclipse.jetty.util.thread.
> QueuedThreadPool$3@54b057d5 in NiFi Web Server{STARTED,8<=13<=200,i=4,q=0}
> 2016-08-18 20:49:42,759 ERROR [NiFi Web Server-111] org.apache.nifi.NiFi
> An Unknown Error Occurred in Thread Thread[NiFi Web Server-111,5,main]:
> java.lang.OutOfMemoryError: PermGen space
>
>
> free -m results in :
>
> [image: Inline image 1]
>
> Any pointers on what is going wrong ?
>
>
> Thanks
> Koustav
>
>
>
> On Wed, Aug 17, 2016 at 7:08 PM, Matt Burgess <mattyb...@gmail.com> wrote:
>
>> Koustav,
>>
>> I took your script (with GenerateFlowFile before it) and ran just fine
>> (meaning the file is created and the processor does not hang). When I
>> didn't have write permissions for the target folder, I got an
>> error/bulletin telling me this. When I did have write permissions, it works
>> fine.
>>
>> However I should mention that if you want something to go to the PutFile
>> (in your flow above), you will not get anything output (to the flow) with
>> your current script. Instead you need to create/reuse a flow file and then
>> use the session to transfer it. There is an example of how to do this on my
>> blog: http://funnifi.blogspot.com/2016/03/executescript-json
>> -to-json-revisited_14.html
>>
>> Regards,
>> Matt
>>
>> On Wed, Aug 17, 2016 at 7:34 PM, koustav choudhuri <koustav1...@gmail.com
>> > wrote:
>>
>>> Matt
>>>
>>> Thanks for Replying , but I am still struggling with ExecuteScript.
>>>
>>>
>>> [image: Inline image 1]
>>>
>>>
>>> in that ExecuteScript all I have is :
>>>
>>> Script - set to Python
>>> Script Body :
>>> from sys import argv
>>>
>>> filename = "nifi_output/nifi_test.txt"
>>> target = open(filename, 'w')
>>> target.write("My Name is Bond")
>>> target.close()
>>>
>>> When I run this , Nifi hangs for some reason. Am I doing something
>>> grossly wrong ?
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Wed, Aug 17, 2016 at 3:57 PM, Matt Burgess <mattyb...@gmail.com>
>>> wrote:
>>>
>>>> If you need an input flowfile, you're probably better off with
>>>> ExecuteStreamCommand than ExecuteScript for this use case.
>>>> ExecuteStreamCommand is much like ExecuteProcess but it accepts input flow
>>>> files.
>>>>
>>>> Regards,
>>>> Matt
>>>>
>>>> > On Aug 17, 2016, at 6:49 PM, koustav choudhuri <koustav1...@gmail.com>
>>>> wrote:
>>>> >
>>>> > HI All
>>>> >
>>>> > I am trying to execute 2 different shell scripts ( calling a sqoop
>>>> job and calling a hive script) in a sequence. Can I achieve this through
>>>> NIFI ?
>>>> >
>>>> > I tried to do it through ExecuteProcess Processor but the issue is
>>>> Execute Processor does not accept an input.
>>>> >
>>>> > Then I moved to ExecuteScript :
>>>> > Created 2 different python scripts, 1 calling the Sqoop job and the
>>>> other calling the Hive script and arranged them in 2 different
>>>> ExecuteScript Processors but looks like it doesnt work.
>>>> >
>>>> > Can you guys tell me if this is achievable in NIFI? Can I call
>>>> Sqoop/HIVE/ SPARK jobs residing on other servers in a sequence or flow with
>>>> NIFI?
>>>> >
>>>> >
>>>> > Thanks
>>>> > Koustav
>>>>
>>>
>>>
>>
>

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