Re: translating records from MySQL database to Turtle

2017-04-14 Thread Matt Burgess
Bill, If the information in the triple from the DB is enough to generate the Turtle file (using outside data like the @prefixt ex stuff), then ReplaceText should do the trick; if you need additional information supplied by the user and/or some third-party connection, then the scripting processors

Re: NiFi failed to restart after power outage on server

2017-04-14 Thread Joe Witt
Hello Did the partition nifi use get full? We are making the error handling in such case more resilient as at time it can result in partial writes. Joe Thanks Joe On Apr 14, 2017 5:06 PM, "Ravi Papisetti (rpapiset)" wrote: > Hi, > > > > NiFi version: 1.1.2, Linux > > > > Last night nifi serv

NiFi failed to restart after power outage on server

2017-04-14 Thread Ravi Papisetti (rpapiset)
Hi, NiFi version: 1.1.2, Linux Last night nifi servers got restarted and unable to bring nifi service back up. I saw this thread https://community.hortonworks.com/questions/75280/why-does-my-minifi-flow-fail-to-run-when-turning-o.html, but don’t see any workaround for this. Below are log mess

Data flow best practise

2017-04-14 Thread Kiran
Hello, The use of NiFi has steadily grown over the last few months and we have more people creating data flows. An issue that we have is the quality of the data flows varies a lot. I was wondering if there were any best practise for creating data flows? I'm guessing this is a issue lots of o

Re: Flow not loading in 1.2.0

2017-04-14 Thread Joe Witt
You put the flow into the conf dir and not the root dir, right? On Apr 14, 2017 12:29 PM, "Uwe Geercken" wrote: > Hi, > > I just downloaded 1.2.0 and unpacked it to the usual place. Then I simply > copied my flow.xml.gz from the previous version 1.1.1 to the Nifi 1.2.0 > root folder and started

Re: Flow not loading in 1.2.0

2017-04-14 Thread Juan Sequeiros
Uwe, Could not be that your previous flow had the custom processors and with this upgrade you've not put them in lib dir? On Fri, Apr 14, 2017 at 12:29 PM Uwe Geercken wrote: > Hi, > > I just downloaded 1.2.0 and unpacked it to the usual place. Then I simply > copied my flow.xml.gz from the pr

Aw: Flow not loading in 1.2.0

2017-04-14 Thread Uwe Geercken
Forget about it - I copied the wrong file. All ok. Uwe     Gesendet: Freitag, 14. April 2017 um 18:29 Uhr Von: "Uwe Geercken" An: nifi Betreff: Flow not loading in 1.2.0 Hi, I just downloaded 1.2.0 and unpacked it to the usual place. Then I simply copied my flow.xml.gz from the previous vers

Flow not loading in 1.2.0

2017-04-14 Thread Uwe Geercken
Hi, I just downloaded 1.2.0 and unpacked it to the usual place. Then I simply copied my flow.xml.gz from the previous version 1.1.1 to the Nifi 1.2.0 root folder and started Nifi 1.2.0. But the flow does not show up. No error messages. Am I missing something? Rgds, Uwe

4 Processors for NiFi: SplitToAttribute, MergeTemplate, ExecuteRuleEngine, GenerateData

2017-04-14 Thread Uwe Geercken
Hello everybody,   I have released (Apache License) my NiFi processors at:   https://github.com/uwegeercken/nifi_processors[https://deref-web-02.de/mail/client/WDRw2DECNaw/dereferrer/?redirectUrl=https%3A%2F%2Fgithub.com%2Fuwegeercken%2Fnifi_processors]   Further below is a summary for the processo

Re: SplitJSON JSONPath Expression

2017-04-14 Thread James Wing
Bill, I think the JSON path expression you are looking for is just $ Which is a reference to the root object array. This should result in three splits like {"provider_study_id":1001} Thanks, James On Fri, Apr 14, 2017 at 7:43 AM, Bill Duncan wrote: > Hi All, > > I am working on extracting

SplitJSON JSONPath Expression

2017-04-14 Thread Bill Duncan
Hi All, I am working on extracting records on from a MySQL database and converting the records to RDF. My processor workflow looks like this: ExecuteSQL --> ConvetAvroToJSON --> SplitJSON So far, I've managed to connect to the DB, and convert it to Avro. However, I am failing on the spit step. I