Alfredo
There are quite a few details that will be needed to help folks guess
at possible issues.
Configuration of the machine running nifi
how many cores?, etc..
Configuration of nifi
you shared common properties from nifi.properties which is good.
how many threads does the flow controller have?
how many processors are on the graph?
How many threads does ListSFTP have?
Is this a NiFi cluster or single node?
Loading of the system running nifi
cpu load avg
garbage collection behavior in the jVM?
Loading of nifi
how many threads does nifi show are running?
Similar info for the SFTP server side
System error 4 could mean a lot of things. Is that system taxed and
unable to establish connections at times?
How often does the problem happen? How often does the connection/flow work?
Have you tried manually connecting the way nifi would by running
commands like 'sftp u...@host.sftp.server -vvv' repeatedly to see if
you can reproduce the issue?
Does a file system get mounted for the sftp user and periodically is
this failing?
Unfortunately it could be a lot of things so we'll probably need to
unpack a lot of info to get there.
Thanks
On Mon, Oct 29, 2018 at 12:14 PM Alfredo De Luca
<alfredo.del...@gmail.com> wrote:
>
> hi all. any idea? I am trying everything..but not sure what cause this error.
>
> Cheers
>
> On Mon, Oct 29, 2018 at 12:34 PM Alfredo De Luca <alfredo.del...@gmail.com>
> wrote:
>>
>> nifi.swap.in.threads=1
>> nifi.swap.out.threads=4
>> nifi.cluster.node.protocol.threads=25
>> nifi.cluster.node.protocol.max.threads=50
>>
>>
>>
>>
>> On Mon, Oct 29, 2018 at 12:28 PM Alfredo De Luca <alfredo.del...@gmail.com>
>> wrote:
>>>
>>> anyway...this is the error
>>> 2018-10-29 11:21:06,768 ERROR [Timer-Driven Process Thread-13]
>>> SimpleProcessLogger.java:254
>>> ListSFTP[id=766ac418-27ce-335a-97c9-8823f2cf5a96] Failed to perform listing
>>> on remote host due to java.io.IOException: Failed to obtain connection to
>>> remote host due to com.jcraft.jsch.JSchException: Auth fail: {}
>>>
>>>
>>> On Mon, Oct 29, 2018 at 12:27 PM Alfredo De Luca <alfredo.del...@gmail.com>
>>> wrote:
>>>>
>>>> Hi Joe.
>>>> Sftp server allows 200 connections... not sure about the nifi. I ll check
>>>>
>>>>
>>>> On Mon, Oct 29, 2018 at 12:21 PM Joe Witt <joe.w...@gmail.com> wrote:
>>>>>
>>>>> how many connections does your sftp server allow at once and how many
>>>>> threads is nifi given for communication?
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Oct 29, 2018, 7:10 AM Alfredo De Luca <alfredo.del...@gmail.com>
>>>>> wrote:
>>>>>>
>>>>>> Hi all. We have some issue with our nifi (v. 1.6) where occasionally we
>>>>>> have an error saying ...
>>>>>> Auth fail.
>>>>>>
>>>>>> On the sftp server side we get
>>>>>>
>>>>>> Oct 29 11:48:06 sftp sshd[13845]: pam_sss(sshd:account): Access denied
>>>>>> for user <sftp user>: 4 (System error)
>>>>>>
>>>>>> Any idea?
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Alfredo
>>>>>>
>>>>
>>>>
>>>> --
>>>> Alfredo
>>>>
>>>
>>>
>>> --
>>> Alfredo
>>>
>>
>>
>> --
>> Alfredo
>>
>
>
> --
> Alfredo
>
