The provenance repo is in large scale use by many many users so fundamentally it does work. There are conditions that apparently need improving. In the past couple days these items have been flagged by folks on this list, JIRAs and PRs raised and merged, all good. If you can help by creating a build of the latest and confirm it fixes your case then please do so.
Thanks On Fri, Apr 10, 2020 at 12:48 PM Darren Govoni <[email protected]> wrote: > It would seem the feature is either broken completely or only works in > specific conditions. > > Can the Nifi team put a fix on their road map for this? > Its a rather central feature to Nifi. > > Sent from my Verizon, Samsung Galaxy smartphone > > ------------------------------ > *From:* Wyllys Ingersoll <[email protected]> > *Sent:* Friday, April 10, 2020 11:17:42 AM > *To:* [email protected] <[email protected]> > *Subject:* Re: Not Seeing Provenance data > > I have a similar problem with viewing provenance. I have a 3-node cluster > in a kubernetes environment, the provenance_repository directory for each > node is on a persistent data store so it is not deleted or lost between > container restarts (which are not very common). My > nifi.provenance.repository.max.storage.time is 24 hours. > > Whenever I try to view any provenance, nothing is ever shown. If I > manually inspect the provenance_repository directory, there is a lucene > index and TOC being created. > > I see log messages like these: > > Submitting query +processorId:882133fe-b684-148b-ad88-7850437ca591 with > identifier 64a703fe-0171-1000-0000-000065abd91a against index directories > [./provenance_repository/lucene-8-index-1560864819888] > Returning the following list of index locations because they were finished > being written to before 1586531601311: [] > Found no events in the Provenance Repository. In order to perform > maintenace of the indices, will assume that the first event time is now > (1586531601311) > > > Any suggestions? > > -Wyllys Ingersoll > > > > On Thu, Apr 9, 2020 at 11:25 AM Dobbernack, Harald (Key-Work) < > [email protected]> wrote: > > Hey Mark, > > > > great news and thank you very much! > > > > Happy Holidays! > > Harald > > > > *Von:* Mark Payne <[email protected]> > *Gesendet:* Donnerstag, 9. April 2020 17:18 > *An:* [email protected] > *Betreff:* Re: Not Seeing Provenance data > > > > Thanks Harald, > > > > I have created a Jira [1] for this. There’s currently a PR up for it as > well. > > > > Thanks > > -Mark > > > > [1] https://issues.apache.org/jira/browse/NIFI-7346 > > > > On Apr 9, 2020, at 11:14 AM, Dobbernack, Harald (Key-Work) < > [email protected]> wrote: > > > > Hi Mark, > > > > I can confirm after testing that if no provenance event has been generated > in a time greater than the set nifi.provenance.repository.max.storage.time > then as expected the last recorded provenance events don’t exist anymore > but also from then on any new provenance events are also not searchable, > the provenance Search remains completely empty regardless of how many flows > are active. As described also *.prov file is then missing in provenance > repository. After restart of Nifi new prov File will be generated and > provenance will work again, but only showing stuff generated since last > NiFi Start. > > > > So yes, I’d say your Idea > > ‘If so, then I think that would understand why it deleted the data. > It’s trying to age off old data > > but unfortunately it doesn’t perform a check to first determine > whether or not the “old file” > > that it’s about to delete is also the “active file”.’ > > fits very nicely to my test. > > > > As a workaround we’re going to set a greater > nifi.provenance.repository.max.storage.time > until this can be resolved. > > > > Thanks again for looking into this. > > Harald > > > > > > *Von:* Dobbernack, Harald (Key-Work) > *Gesendet:* Donnerstag, 9. April 2020 15:22 > *An:* [email protected] > *Betreff:* AW: Not Seeing Provenance data > > > > Hi Mark, > > > > thank you for looking into this. > > > > The nifi.provenance.repository.max.storage.time setting might explain why > I haven’t been experiencing the effect so often since changing from the > default to 120 hours a few months ago 😉 > > > > But I believe provenance stopped working last time although there was an > ‘active’ flows in wait Processor, expiring every hour, going on to ‘send a > message’ before being rerouted to the same wait processor. I would have > expected this generates provenance entries? As I am not actually 100% sure > if that wait processor was in use when last provenance got lost I will > check with a testing system to see if I can reproduce provenance breakage > when no active flows are around for a time greater > nifi.provenance.repository.max.storage.time and I will get back to you. > > > > Thank you! > > Harald > > > > > > *Von:* Mark Payne <[email protected]> > *Gesendet:* Donnerstag, 9. April 2020 14:41 > *An:* [email protected] > *Betreff:* Re: Not Seeing Provenance data > > > > Hey Daren, Herald, > > > > Thanks for the note. I have seen this once before but couldn’t figure out > what caused it. Restarting addressed the issue. > > > > I think I may understand the problem, now, though, after looking at it > again. > > > > In nifi.properties, there are a couple of property named > “nifi.provenance.repository.max.storage.time” that defaults to “24 hours" > > Is it possible that you went 24 hours (or whatever value is set for that > property) without generating any Provenance events? > > > > If so, then I think that would understand why it deleted the data. It’s > trying to age off old data but unfortunately it doesn’t perform a check to > first determine whether or not the “old file” that it’s about to delete is > also the “active file”. > > > > Can you confirm whether or not you would expect to see 24 hours pass > without any provenance data? > > > > Thanks > > -Mark > > > > > > > > On Apr 9, 2020, at 4:32 AM, Dobbernack, Harald (Key-Work) < > [email protected]> wrote: > > > > What I noticed is that as long as provenance is working there will be > *.prov files in the directory. When Provenance isn’t working these files > are not to be seen. Maybe some Cleaning Process deletes those files > prematurely or the process building them doesn’t work any more? > > > > *Von:* Dobbernack, Harald (Key-Work) <[email protected]> > *Gesendet:* Donnerstag, 9. April 2020 10:27 > *An:* [email protected] > *Betreff:* AW: Not Seeing Provenance data > > > > This is something I experience too from time to time. My quick and dirty > workaround is stop nifi, delete everything in the provenance directory, > restart…. Then Provenance is usable again (of course only with data since > the delete) . I’m hoping very much there is a better way, someone can show > us better settings or a potential bug can be discovered… > > > > *Von:* Darren Govoni <[email protected]> > *Gesendet:* Mittwoch, 8. April 2020 20:31 > *An:* [email protected] > *Betreff:* Not Seeing Provenance data > > > > Hi, > > When I go to "View data provenance" in Nifi, I never see any logs for my > flow. Am I missing some configuration setting somewhere? > > > > thanks, > > Darren > > > > > > *Harald Dobbernack* > Key-Work Consulting GmbH | Kriegsstr. 100 | 76133 | Karlsruhe | Germany | > https://www.key-work.de | Datenschutz > <https://www.key-work.de/de/footer/datenschutz.html> > Fon: +49-721-78203-264 | E-Mail: [email protected] | Fax: > +49-721-78203-10 > > Key-Work Consulting GmbH, Karlsruhe, HRB 108695, HRG Mannheim > Geschäftsführer: Andreas Stappert, Tobin Wotring > > > >
