OK, I found the problem, this has been fixed in 1.14.0:
https://issues.apache.org/jira/browse/NIFI-8400


Le mar. 20 juil. 2021 à 14:42, <[email protected]> a écrit :

> Ah, yes.  In the nifi-app.log file I do see recurring Timer-Driven Process
> Thread error messages.
>
> o.apache.nifi.controller.FlowController Failed to capture component stats
> for Stats History
> java.lang.NullPoinerException:  null
>   at
> org.apache.nfif.diagnostics.SystemDiagnostics.getOpenFileHandles(SystemDiagnostics.java:224)
>   at
> org.apache.nifi.controller.FlowController.getNodeStatusSnapshow(FlowController.java:3011)
> etc.
>
> And this looks like it it happens every minute, per the snapshot frequency
> I listed below.
>
>
> Thanks,
> Matt
>
>
> --------- Original Message ---------
> Subject: Re: Re: Insufficient history, please try again later
> From: "Pierre Villard" <[email protected]>
> Date: 7/19/21 1:11 pm
> To: "[email protected]" <[email protected]>
>
> Any error/message in nifi-app or nifi-user log files?
>
> Le lun. 19 juil. 2021 à 18:32, <[email protected]> a écrit :
>
>> Yes, data has been going through the components for at least two weeks on
>> one instance and a few hours on the other.
>> Same message on both systems for all components.
>>
>> Thanks,
>> Matt
>>
>>
>> --------- Original Message ---------
>> Subject: Re: Insufficient history, please try again later
>> From: "Pierre Villard" <[email protected]>
>> Date: 7/19/21 12:07 pm
>> To: "[email protected]" <[email protected]>
>>
>> Hi,
>>
>> You usually need to wait a few minutes after some data went through the
>> component to get something to display.
>> Are you experiencing this issue after a while even though data is going
>> through the component?
>> Please keep in mind that stats are removed after a restart when using the
>> volatile repository.
>>
>> Thanks,
>> Pierre
>>
>> Le lun. 19 juil. 2021 à 17:30, <[email protected]> a écrit :
>>
>>> I am running NiFi 1.13.2 on Windows 2012 Server.
>>> For any of my process blocks if I try to look at "Status History" I get
>>> a dialog "Insufficient history, please try again later."
>>>
>>> I *think* that these settings should provide me with *some* history but
>>> it very well be that I am mistaken and have things configured incorrectly.
>>>
>>>
>>> nifi.components.status.repository.implementation=org.apache.nifi.controller.status.history.VolatileComponentStatusRepository
>>> nifi.components.status.repository.buffer.size=1440
>>> nifi.components.status.snapshot.frequency=1 min
>>>
>>> What am I doing wrong here?
>>>
>>> Thanks,
>>> Matt
>>>
>>

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