Can you share the source code to the custom source? -Joey
> On Oct 10, 2015, at 03:34, Parul Agrawal <parulagrawa...@gmail.com> wrote: > > Hi, > > I added custom flume source and when flume source is sending the data to > flume sink, below mentioned error is thrown at flume sink. > > Administratively Yielded for 1 sec due to processing failure > 2015-10-10 02:30:45,027 WARN [Timer-Driven Process Thread-9] > o.a.n.c.t.ContinuallyRunProcessorTask Administratively Yielding > ExecuteFlumeSink[id=2d08dfe7-4fd1-4a10-9d25-0b007a2c41bf] due to uncaught > Exception: java.lang.IllegalStateException: close() called when transaction > is OPEN - you must either commit or rollback first > 2015-10-10 02:30:45,028 WARN [Timer-Driven Process Thread-9] > o.a.n.c.t.ContinuallyRunProcessorTask > java.lang.IllegalStateException: close() called when transaction is OPEN - > you must either commit or rollback first > at > com.google.common.base.Preconditions.checkState(Preconditions.java:172) > ~[guava-r05.jar:na] > at > org.apache.flume.channel.BasicTransactionSemantics.close(BasicTransactionSemantics.java:179) > ~[flume-ng-core-1.6.0.jar:1.6.0] > at org.apache.flume.sink.LoggerSink.process(LoggerSink.java:105) > ~[flume-ng-core-1.6.0.jar:1.6.0] > at > org.apache.nifi.processors.flume.ExecuteFlumeSink.onTrigger(ExecuteFlumeSink.java:139) > ~[na:na] > at > org.apache.nifi.processors.flume.AbstractFlumeProcessor.onTrigger(AbstractFlumeProcessor.java:148) > ~[na:na] > at > org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1077) > ~[nifi-framework-core-0.3.0.jar:0.3.0] > at > org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:127) > [nifi-framework-core-0.3.0.jar:0.3.0] > at > org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:49) > [nifi-framework-core-0.3.0.jar:0.3.0] > at > org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:119) > [nifi-framework-core-0.3.0.jar:0.3.0] > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > [na:1.7.0_85] > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) > [na:1.7.0_85] > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) > [na:1.7.0_85] > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) > [na:1.7.0_85] > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > [na:1.7.0_85] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > [na:1.7.0_85] > at java.lang.Thread.run(Thread.java:745) [na:1.7.0_85] > 2015-10-10 02:30:46,029 ERROR [Timer-Driven Process Thread-9] > o.a.n.processors.flume.ExecuteFlumeSink > ExecuteFlumeSink[id=2d08dfe7-4fd1-4a10-9d25-0b007a2c41bf] > ExecuteFlumeSink[id=2d08dfe7-4fd1-4a10-9d25-0b007a2c41bf] failed to process > due to org.apache.nifi.processor.exception.FlowFileHandlingException: > StandardFlowFileRecord[uuid=8832b036-51a4-49cf-9703-fc4ed443ab80,claim=StandardContentClaim > [resourceClaim=StandardResourceClaim[id=1444462207782-7, container=default, > section=7], offset=180436, > length=14078],offset=0,name=8311685679474355,size=14078] is not known in this > session (StandardProcessSession[id=218318]); rolling back session: > org.apache.nifi.processor.exception.FlowFileHandlingException: > StandardFlowFileRecord[uuid=8832b036-51a4-49cf-9703-fc4ed443ab80,claim=StandardContentClaim > [resourceClaim=StandardResourceClaim[id=1444462207782-7, container=default, > section=7], offset=180436, > length=14078],offset=0,name=8311685679474355,size=14078] is not known in this > session (StandardProcessSession[id=218318]) > > Any idea what could be wrong in this. > > Thanks and Regards, > Parul > > >> On Fri, Oct 9, 2015 at 6:32 PM, Bryan Bende <bbe...@gmail.com> wrote: >> Hi Parul, >> >> I think it would be good to keep the convo going on the users list since >> there are more people who can offer help there, and also helps everyone >> learn new solutions. >> >> The quick answer though is that NiFi has an ExecuteProcess processor which >> could execute "tshark -i eth0 -T pdml". >> >> There is not currently an XmlToJson processor, so this could be a place >> where you need a custom processor. For simple cases you can use an >> EvaluateXPath processor to extract values from the XML, and then a >> ReplaceText processor to build a new json document from those extracted >> values. >> >> -Bryan >> >> >>> On Fri, Oct 9, 2015 at 3:39 AM, Parul Agrawal <parulagrawa...@gmail.com> >>> wrote: >>> Hi, >>> >>> Little more to add..... >>> I need to keep reading the flowfile till END_TAG is received. i.e. we may >>> need to concatenate the flowfile data till END_TAG. >>> and then convert it to json and call PutFile() processor. >>> >>> Thanks and Regards, >>> Parul >>> >>> >>> >>>> On Fri, Oct 9, 2015 at 10:56 AM, Parul Agrawal <parulagrawa...@gmail.com> >>>> wrote: >>>> Hi, >>>> >>>> Thank you very much again for the guidance provided. >>>> Basically I would need a processor which would convert XML file to Json. >>>> >>>> Currently I have a flume source which is of type "exec" and the command >>>> used is "tshark -i eth0 -T pdml". >>>> >>>> Here Flume source keeps sending data to flume sink. This flow file would >>>> be of PDML format. >>>> >>>> Now I need a processor which would do the following >>>> >>>> 1) Form a complete XML file based on START TAG (<packet>) >>>> and END TAG (</packet>) >>>> 2) Once the XML message is formed convert it to json. >>>> 3) Place a json file to local directory using PutFile() processor. >>>> >>>> I am not sure if I could able to explain the processor requirement. >>>> Would be really great if you could help me in this. >>>> >>>> Thanks and Regards, >>>> Parul >>>> >>>> >>>>> On Thu, Oct 8, 2015 at 10:02 PM, Joey Echeverria <joe...@gmail.com> wrote: >>>>> > If you plan to use NiFi for the long term, it might be worth investing >>>>> > in converting your custom Flume components to NiFi processors. We can >>>>> > help you get started if you need any guidance going that route. >>>>> >>>>> +1. Running Flume sources/sinks is meant as a transition step. It's >>>>> really useful if you have a complex Flume flow and want to migrate >>>>> only parts of it over to NiFi at a time. I would port any custom >>>>> sources and sinks to NiFi once you knew that it would meet your needs >>>>> well. NiFi has a lot of documentation on writing processors and the >>>>> concepts map pretty well if you're already familiar with Flume's >>>>> execution model. >>>>> >>>>> -Joey >>>>> >>>>> On Thu, Oct 8, 2015 at 9:48 AM, Bryan Bende <bbe...@gmail.com> wrote: >>>>> > >>>>> > Hi Parul, >>>>> > >>>>> > It is possible to deploy a custom Flume source/sink to NiFi, but due to >>>>> > the way the Flume processors load the classes for the sources and >>>>> > sinks, the jar you deploy to the lib directory also needs to include >>>>> > the other dependencies your source/sink needs (or they each need to >>>>> > individually be in lib/ directly). >>>>> > >>>>> > So here is a sample project I created that makes a shaded jar: >>>>> > https://github.com/bbende/my-flume-source >>>>> > >>>>> > It will contain the custom source and following dependencies all in one >>>>> > jar: >>>>> > >>>>> > org.apache.flume:my-flume-source:jar:1.0-SNAPSHOT >>>>> > +- org.apache.flume:flume-ng-sdk:jar:1.6.0:compile >>>>> > +- org.apache.flume:flume-ng-core:jar:1.6.0:compile >>>>> > +- org.apache.flume:flume-ng-configuration:jar:1.6.0:compile >>>>> > +- org.apache.flume:flume-ng-auth:jar:1.6.0:compile >>>>> > \- com.google.guava:guava:jar:11.0.2:compile >>>>> > \- com.google.code.findbugs:jsr305:jar:1.3.9:compile >>>>> > >>>>> > I copied that to NiFi lib, restarted, created an ExecuteFlumeSource >>>>> > processor with the following config: >>>>> > >>>>> > Source Type = org.apache.flume.MySource >>>>> > Agent Name = a1 >>>>> > Source Name = r1 >>>>> > Flume Configuration = a1.sources = r1 >>>>> > >>>>> > And I was getting the output in nifi/logs/nifi-bootstrap.log >>>>> > >>>>> > Keep in mind that this could become risky because any classes found in >>>>> > the lib directory would be accessible to all NARs in NiFi and would be >>>>> > found before classes within a NAR because the parent is checked first >>>>> > during class loading. This example isn't too risky because we are only >>>>> > bringing in flume jars and one guava jar, but for example if another >>>>> > nar uses a different version of guava this is going to cause a problem. >>>>> > >>>>> > If you plan to use NiFi for the long term, it might be worth investing >>>>> > in converting your custom Flume components to NiFi processors. We can >>>>> > help you get started if you need any guidance going that route. >>>>> > >>>>> > -Bryan >>>>> > >>>>> > >>>>> > On Thu, Oct 8, 2015 at 2:30 AM, Parul Agrawal >>>>> > <parulagrawa...@gmail.com> wrote: >>>>> >> >>>>> >> Hello Bryan, >>>>> >> >>>>> >> Thank you very much for your response. >>>>> >> >>>>> >> Is it possible to have customized flume source and sink in Nifi? >>>>> >> I have my own customized source and sink? I followed below steps to >>>>> >> add my own customized source but it did not work. >>>>> >> >>>>> >> 1) Created Maven project and added customized source. (flume.jar was >>>>> >> created after this step) >>>>> >> 2) Added flume.jar file to nifi-0.3.0/lib folder. >>>>> >> 3) Added flume source processor with the below configuration >>>>> >> >>>>> >> Property Value >>>>> >> Source Type com.flume.source.Source >>>>> >> Agent Name a1 >>>>> >> Source Name k1. >>>>> >> >>>>> >> But I am getting the below error in Flume Source Processor. >>>>> >> "Failed to run validation due to java.lang.NoClassDefFoundError : >>>>> >> /org/apache/flume/PollableSource." >>>>> >> >>>>> >> Can you please help me in this regard. Any step/configuration I missed. >>>>> >> >>>>> >> Thanks and Regards, >>>>> >> Parul >>>>> >> >>>>> >> >>>>> >> On Wed, Oct 7, 2015 at 6:57 PM, Bryan Bende <bbe...@gmail.com> wrote: >>>>> >>> >>>>> >>> Hello, >>>>> >>> >>>>> >>> The NiFi Flume processors are for running Flume sources and sinks >>>>> >>> with in NiFi. They don't communicate with an external Flume process. >>>>> >>> >>>>> >>> In your example you would need an ExecuteFlumeSource configured to >>>>> >>> run the netcat source, connected to a ExecuteFlumeSink configured >>>>> >>> with the logger. >>>>> >>> >>>>> >>> -Bryan >>>>> >>> >>>>> >>> On Wednesday, October 7, 2015, Parul Agrawal >>>>> >>> <parulagrawa...@gmail.com> wrote: >>>>> >>>> >>>>> >>>> Hi, >>>>> >>>> >>>>> >>>> I was trying to run Nifi Flume processor with the below mentioned >>>>> >>>> details but not could bring it up. >>>>> >>>> >>>>> >>>> I already started flume with the sample configuration file >>>>> >>>> ============================================= >>>>> >>>> # example.conf: A single-node Flume configuration >>>>> >>>> >>>>> >>>> # Name the components on this agent >>>>> >>>> a1.sources = r1 >>>>> >>>> a1.sinks = k1 >>>>> >>>> a1.channels = c1 >>>>> >>>> >>>>> >>>> # Describe/configure the source >>>>> >>>> a1.sources.r1.type = netcat >>>>> >>>> a1.sources.r1.bind = localhost >>>>> >>>> a1.sources.r1.port = 44444 >>>>> >>>> >>>>> >>>> # Describe the sink >>>>> >>>> a1.sinks.k1.type = logger >>>>> >>>> >>>>> >>>> # Use a channel which buffers events in memory >>>>> >>>> a1.channels.c1.type = memory >>>>> >>>> a1.channels.c1.capacity = 1000 >>>>> >>>> a1.channels.c1.transactionCapacity = 100 >>>>> >>>> >>>>> >>>> # Bind the source and sink to the channel >>>>> >>>> a1.sources.r1.channels = c1 >>>>> >>>> a1.sinks.k1.channel = c1 >>>>> >>>> ============================================= >>>>> >>>> >>>>> >>>> Command used to start flume : $ bin/flume-ng agent --conf conf >>>>> >>>> --conf-file example.conf --name a1 -Dflume.root.logger=INFO,console >>>>> >>>> >>>>> >>>> In the Nifi browser of ExecuteFlumeSink following configuration was >>>>> >>>> done: >>>>> >>>> Property Value >>>>> >>>> Sink Type logger >>>>> >>>> Agent Name a1 >>>>> >>>> Sink Name k1. >>>>> >>>> >>>>> >>>> Event is sent to the flume using: >>>>> >>>> $ telnet localhost 44444 >>>>> >>>> Trying 127.0.0.1... >>>>> >>>> Connected to localhost.localdomain (127.0.0.1). >>>>> >>>> Escape character is '^]'. >>>>> >>>> Hello world! <ENTER> >>>>> >>>> OK >>>>> >>>> >>>>> >>>> But I could not get any data in the nifi flume processor. Request >>>>> >>>> your >>>>> >>>> help in this. >>>>> >>>> Do i need to change the example.conf file of flume so that Nifi Flume >>>>> >>>> Sink should get the data. >>>>> >>>> >>>>> >>>> Thanks and Regards, >>>>> >>>> Parul >>>>> >>> >>>>> >>> >>>>> >>> >>>>> >>> -- >>>>> >>> Sent from Gmail Mobile >>>>> >> >>>>> >> >>>>> > >
