Are you running this using LocalJobRunner? Does calling Pipeline.enableDebug() before run() help? If it doesn't, it'll help settle a debate I'm having w/Matthias. ;-)
On Fri, Nov 16, 2012 at 10:22 AM, Dmitriy Lyubimov <[email protected]> wrote: > I see the error in the logs but Pipeline.run() has never thrown anything. > isSucceeded() subsequently returns false. Is there any way to extract > client-side problem rather than just being able to state that job failed? > or it is ok and the only diagnostics by design? > > ============ > 68124 [Thread-8] INFO org.apache.crunch.impl.mr.exec.CrunchJob - > org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path > does not exist: hdfs://localhost:11010/crunchr-example/input > at > org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:231) > at > org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:248) > at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:944) > at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:961) > at org.apache.hadoop.mapred.JobClient.access$500(JobClient.java:170) > at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:880) > at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:833) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:396) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157) > at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:833) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:476) > at > org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchControlledJob.submit(CrunchControlledJob.java:331) > at org.apache.crunch.impl.mr.exec.CrunchJob.submit(CrunchJob.java:135) > at > org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchJobControl.startReadyJobs(CrunchJobControl.java:251) > at > org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchJobControl.run(CrunchJobControl.java:279) > at java.lang.Thread.run(Thread.java:662) > > > On Mon, Nov 12, 2012 at 5:41 PM, Dmitriy Lyubimov <[email protected]> wrote: > >> for hadoop nodes i guess yet another option to soft-link the .so into >> hadoop's native lib folder >> >> >> On Mon, Nov 12, 2012 at 5:37 PM, Dmitriy Lyubimov <[email protected]>wrote: >> >>> I actually want to defer this to hadoop admins, we just need to create a >>> procedure for setting up nodes. Ideally as simple as possible. something >>> like >>> >>> 1) setup R >>> 2) install.packages("rJava","RProtoBuf","crunchR") >>> 3) R CMD javareconf >>> 3) add result of R --vanilla <<< 'system.file("jri", package="rJava") to >>> either mapred command lines or LD_LIBRARY_PATH... >>> >>> but it will depend on their versions of hadoop, jre etc. I hoped crunch >>> might have something to hide a lot of that complexity (since it is about >>> hiding complexities, for the most part :) ) besides hadoop has a way to >>> ship .so's to the backend so if crunch had an api to do something similar >>> it is conceivable that driver might yank and ship it too to hide that >>> complexity as well. But then there's a host of issues how to handle >>> potentially different rJava versions installed on different nodes... So, it >>> increasingly looks like something we might want to defer to sysops to do >>> with approximate set of requirements . >>> >>> >>> On Mon, Nov 12, 2012 at 5:29 PM, Josh Wills <[email protected]> wrote: >>> >>>> On Mon, Nov 12, 2012 at 5:17 PM, Dmitriy Lyubimov <[email protected]> >>>> wrote: >>>> >>>> > so java tasks need to be able to load libjri.so from >>>> > whatever system.file("jri", package="rJava") says. >>>> > >>>> > Traditionally, these issues were handled with -Djava.library.path. >>>> > Apparently there's nothing java task can do to enable loadLibrary() >>>> command >>>> > to see the damn library once started. But -Djava.library.path requires >>>> for >>>> > nodes to configure and lock jvm command line from modifications of the >>>> > client. which is fine. >>>> > >>>> > I also discovered that LD_LIBRARY_PATH actually works with jre 1.6 >>>> (again). >>>> > >>>> > but... any other suggestions about best practice configuring crunch to >>>> run >>>> > user's .so's? >>>> > >>>> >>>> Not off the top of my head. I suspect that whatever you come up with will >>>> become the "best practice." :) >>>> >>>> > >>>> > thanks. >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > On Sun, Nov 11, 2012 at 1:41 PM, Josh Wills <[email protected]> >>>> wrote: >>>> > >>>> > > I believe that is a safe assumption, at least right now. >>>> > > >>>> > > >>>> > > On Sun, Nov 11, 2012 at 1:38 PM, Dmitriy Lyubimov <[email protected] >>>> > >>>> > > wrote: >>>> > > >>>> > > > Question. >>>> > > > >>>> > > > So in Crunch api, initialize() doesn't get an emitter. and the >>>> process >>>> > > gets >>>> > > > emitter every time. >>>> > > > >>>> > > > However, my guess any single reincranation of a DoFn object in the >>>> > > backend >>>> > > > will always be getting the same emitter thru its lifecycle. Is it >>>> an >>>> > > > admissible assumption or there's currently a counter example to >>>> that? >>>> > > > >>>> > > > The problem is that as i implement the two way pipeline of input >>>> and >>>> > > > emitter data between R and Java, I am bulking these calls together >>>> for >>>> > > > performance reasons. Each individual datum in these chunks of data >>>> will >>>> > > not >>>> > > > have attached emitter function information to them in any way. >>>> (well it >>>> > > > could but it would be a performance killer and i bet emitter never >>>> > > > changes). >>>> > > > >>>> > > > So, thoughts? can i assume emitter never changes between first and >>>> lass >>>> > > > call to DoFn instance? >>>> > > > >>>> > > > thanks. >>>> > > > >>>> > > > >>>> > > > On Mon, Oct 29, 2012 at 6:32 PM, Dmitriy Lyubimov < >>>> [email protected]> >>>> > > > wrote: >>>> > > > >>>> > > > > yes... >>>> > > > > >>>> > > > > i think it worked for me before, although just adding all jars >>>> from R >>>> > > > > package distribution would be a little bit more appropriate >>>> approach >>>> > > > > -- but it creates a problem with jars in dependent R packages. I >>>> > think >>>> > > > > it would be much easier to just compile a hadoop-job file and >>>> stick >>>> > it >>>> > > > > in rather than doing cherry-picking of individual jars from who >>>> knows >>>> > > > > how many locations. >>>> > > > > >>>> > > > > i think i used the hadoop job format with distributed cache >>>> before >>>> > and >>>> > > > > it worked... at least with Pig "register jar" functionality. >>>> > > > > >>>> > > > > ok i guess i will just try if it works. >>>> > > > > >>>> > > > > On Mon, Oct 29, 2012 at 6:24 PM, Josh Wills <[email protected] >>>> > >>>> > > wrote: >>>> > > > > > On Mon, Oct 29, 2012 at 5:46 PM, Dmitriy Lyubimov < >>>> > [email protected] >>>> > > > >>>> > > > > wrote: >>>> > > > > > >>>> > > > > >> Great! so it is in Crunch. >>>> > > > > >> >>>> > > > > >> does it support hadoop-job jar format or only pure java jars? >>>> > > > > >> >>>> > > > > > >>>> > > > > > I think just pure jars-- you're referring to hadoop-job format >>>> as >>>> > > > having >>>> > > > > > all the dependencies in a lib/ directory within the jar? >>>> > > > > > >>>> > > > > > >>>> > > > > >> >>>> > > > > >> On Mon, Oct 29, 2012 at 5:10 PM, Josh Wills < >>>> [email protected]> >>>> > > > > wrote: >>>> > > > > >> > On Mon, Oct 29, 2012 at 5:04 PM, Dmitriy Lyubimov < >>>> > > > [email protected]> >>>> > > > > >> wrote: >>>> > > > > >> > >>>> > > > > >> >> I think i need functionality to add more jars (or external >>>> > > > > hadoop-jar) >>>> > > > > >> >> to drive that from an R package. Just setting job jar by >>>> class >>>> > is >>>> > > > not >>>> > > > > >> >> enough. I can push overall job-jar as an addiitonal jar to >>>> R >>>> > > > package; >>>> > > > > >> >> however, i cannot really run hadoop command line on it, i >>>> need >>>> > to >>>> > > > set >>>> > > > > >> >> up classpath thru RJava. >>>> > > > > >> >> >>>> > > > > >> >> Traditional single hadoop job jar will unlikely work here >>>> since >>>> > > we >>>> > > > > >> >> cannot hardcode pipelines in java code but rather have to >>>> > > construct >>>> > > > > >> >> them on the fly. (well, we could serialize pipeline >>>> definitions >>>> > > > from >>>> > > > > R >>>> > > > > >> >> and then replay them in a driver -- but that's too >>>> cumbersome >>>> > and >>>> > > > > more >>>> > > > > >> >> work than it has to be.) There's no reason why i shouldn't >>>> be >>>> > > able >>>> > > > to >>>> > > > > >> >> do pig-like "register jar" or "setJobJar" (mahout-like) >>>> when >>>> > > > kicking >>>> > > > > >> >> off a pipeline. >>>> > > > > >> >> >>>> > > > > >> > >>>> > > > > >> > o.a.c.util.DistCache.addJarToDistributedCache? >>>> > > > > >> > >>>> > > > > >> > >>>> > > > > >> >> >>>> > > > > >> >> >>>> > > > > >> >> On Mon, Oct 29, 2012 at 10:17 AM, Dmitriy Lyubimov < >>>> > > > > [email protected]> >>>> > > > > >> >> wrote: >>>> > > > > >> >> > Ok, sounds very promising... >>>> > > > > >> >> > >>>> > > > > >> >> > i'll try to start digging on the driver part this week >>>> then >>>> > > > > (Pipeline >>>> > > > > >> >> > wrapper in R5). >>>> > > > > >> >> > >>>> > > > > >> >> > On Sun, Oct 28, 2012 at 11:56 AM, Josh Wills < >>>> > > > [email protected] >>>> > > > > > >>>> > > > > >> >> wrote: >>>> > > > > >> >> >> On Fri, Oct 26, 2012 at 2:40 PM, Dmitriy Lyubimov < >>>> > > > > [email protected] >>>> > > > > >> > >>>> > > > > >> >> wrote: >>>> > > > > >> >> >>> Ok, cool. >>>> > > > > >> >> >>> >>>> > > > > >> >> >>> So what state is Crunch in? I take it is in a fairly >>>> > advanced >>>> > > > > state. >>>> > > > > >> >> >>> So every api mentioned in the FlumeJava paper is >>>> working , >>>> > > > > right? >>>> > > > > >> Or >>>> > > > > >> >> >>> there's something that is not working specifically? >>>> > > > > >> >> >> >>>> > > > > >> >> >> I think the only thing in the paper that we don't have >>>> in a >>>> > > > > working >>>> > > > > >> >> >> state is MSCR fusion. It's mostly just a question of >>>> > > > prioritizing >>>> > > > > it >>>> > > > > >> >> >> and getting the work done. >>>> > > > > >> >> >> >>>> > > > > >> >> >>> >>>> > > > > >> >> >>> On Fri, Oct 26, 2012 at 2:31 PM, Josh Wills < >>>> > > > [email protected] >>>> > > > > > >>>> > > > > >> >> wrote: >>>> > > > > >> >> >>>> Hey Dmitriy, >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>> Got a fork going and looking forward to playing with >>>> > crunchR >>>> > > > > this >>>> > > > > >> >> weekend-- >>>> > > > > >> >> >>>> thanks! >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>> J >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>> On Wed, Oct 24, 2012 at 1:28 PM, Dmitriy Lyubimov < >>>> > > > > >> [email protected]> >>>> > > > > >> >> wrote: >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>>> Project template >>>> https://github.com/dlyubimov/crunchR >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> Default profile does not compile R artifact . R >>>> profile >>>> > > > > compiles R >>>> > > > > >> >> >>>>> artifact. for convenience, it is enabled by >>>> supplying -DR >>>> > > to >>>> > > > > mvn >>>> > > > > >> >> >>>>> command line, e.g. >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> mvn install -DR >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> there's also a helper that installs the snapshot >>>> version >>>> > of >>>> > > > the >>>> > > > > >> >> >>>>> package in the crunchR module. >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> There's RJava and JRI java dependencies which i did >>>> not >>>> > > find >>>> > > > > >> anywhere >>>> > > > > >> >> >>>>> in public maven repos; so it is installed into my >>>> github >>>> > > > maven >>>> > > > > >> repo >>>> > > > > >> >> so >>>> > > > > >> >> >>>>> far. Should compile for 3rd party. >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> -DR compilation requires R, RJava and optionally, >>>> > > RProtoBuf. >>>> > > > R >>>> > > > > Doc >>>> > > > > >> >> >>>>> compilation requires roxygen2 (i think). >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> For some reason RProtoBuf fails to import into >>>> another >>>> > > > package, >>>> > > > > >> got a >>>> > > > > >> >> >>>>> weird exception when i put @import RProtoBuf into >>>> > crunchR, >>>> > > so >>>> > > > > >> >> >>>>> RProtoBuf is now in "Suggests" category. Down the >>>> road >>>> > that >>>> > > > may >>>> > > > > >> be a >>>> > > > > >> >> >>>>> problem though... >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> other than the template, not much else has been done >>>> so >>>> > > > far... >>>> > > > > >> >> finding >>>> > > > > >> >> >>>>> hadoop libraries and adding it to the package path on >>>> > > > > >> initialization >>>> > > > > >> >> >>>>> via "hadoop classpath"... adding Crunch jars and its >>>> > > > > >> non-"provided" >>>> > > > > >> >> >>>>> transitives to the crunchR's java part... >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> No legal stuff... >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> No readmes... complete stealth at this point. >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>>> On Thu, Oct 18, 2012 at 12:35 PM, Dmitriy Lyubimov < >>>> > > > > >> >> [email protected]> >>>> > > > > >> >> >>>>> wrote: >>>> > > > > >> >> >>>>> > Ok, cool. I will try to roll project template by >>>> some >>>> > > time >>>> > > > > next >>>> > > > > >> >> week. >>>> > > > > >> >> >>>>> > we can start with prototyping and benchmarking >>>> > something >>>> > > > > really >>>> > > > > >> >> >>>>> > simple, such as parallelDo(). >>>> > > > > >> >> >>>>> > >>>> > > > > >> >> >>>>> > My interim goal is to perhaps take some more or >>>> less >>>> > > simple >>>> > > > > >> >> algorithm >>>> > > > > >> >> >>>>> > from Mahout and demonstrate it can be solved with >>>> > Rcrunch >>>> > > > (or >>>> > > > > >> >> whatever >>>> > > > > >> >> >>>>> > name it has to be) in a comparable time >>>> (performance) >>>> > but >>>> > > > > with >>>> > > > > >> much >>>> > > > > >> >> >>>>> > fewer lines of code. (say one of factorization or >>>> > > > clustering >>>> > > > > >> >> things) >>>> > > > > >> >> >>>>> > >>>> > > > > >> >> >>>>> > >>>> > > > > >> >> >>>>> > On Wed, Oct 17, 2012 at 10:24 PM, Rahul < >>>> > > [email protected] >>>> > > > > >>>> > > > > >> wrote: >>>> > > > > >> >> >>>>> >> I am not much of R user but I am interested to >>>> see how >>>> > > > well >>>> > > > > we >>>> > > > > >> can >>>> > > > > >> >> >>>>> integrate >>>> > > > > >> >> >>>>> >> the two. I would be happy to help. >>>> > > > > >> >> >>>>> >> >>>> > > > > >> >> >>>>> >> regards, >>>> > > > > >> >> >>>>> >> Rahul >>>> > > > > >> >> >>>>> >> >>>> > > > > >> >> >>>>> >> On 18-10-2012 04:04, Josh Wills wrote: >>>> > > > > >> >> >>>>> >>> >>>> > > > > >> >> >>>>> >>> On Wed, Oct 17, 2012 at 3:07 PM, Dmitriy >>>> Lyubimov < >>>> > > > > >> >> [email protected]> >>>> > > > > >> >> >>>>> >>> wrote: >>>> > > > > >> >> >>>>> >>>> >>>> > > > > >> >> >>>>> >>>> Yep, ok. >>>> > > > > >> >> >>>>> >>>> >>>> > > > > >> >> >>>>> >>>> I imagine it has to be an R module so I can set >>>> up a >>>> > > > maven >>>> > > > > >> >> project >>>> > > > > >> >> >>>>> >>>> with java/R code tree (I have been doing that a >>>> lot >>>> > > > > lately). >>>> > > > > >> Or >>>> > > > > >> >> if you >>>> > > > > >> >> >>>>> >>>> have a template to look at, it would be useful i >>>> > guess >>>> > > > > too. >>>> > > > > >> >> >>>>> >>> >>>> > > > > >> >> >>>>> >>> No, please go right ahead. >>>> > > > > >> >> >>>>> >>> >>>> > > > > >> >> >>>>> >>>> >>>> > > > > >> >> >>>>> >>>> On Wed, Oct 17, 2012 at 3:02 PM, Josh Wills < >>>> > > > > >> >> [email protected]> >>>> > > > > >> >> >>>>> wrote: >>>> > > > > >> >> >>>>> >>>>> >>>> > > > > >> >> >>>>> >>>>> I'd like it to be separate at first, but I am >>>> happy >>>> > > to >>>> > > > > help. >>>> > > > > >> >> Github >>>> > > > > >> >> >>>>> >>>>> repo? >>>> > > > > >> >> >>>>> >>>>> On Oct 17, 2012 2:57 PM, "Dmitriy Lyubimov" < >>>> > > > > >> [email protected] >>>> > > > > >> >> > >>>> > > > > >> >> >>>>> wrote: >>>> > > > > >> >> >>>>> >>>>> >>>> > > > > >> >> >>>>> >>>>>> Ok maybe there's a benefit to try a JRI/RJava >>>> > > > prototype >>>> > > > > on >>>> > > > > >> >> top of >>>> > > > > >> >> >>>>> >>>>>> Crunch for something simple. This should both >>>> save >>>> > > > time >>>> > > > > and >>>> > > > > >> >> prove or >>>> > > > > >> >> >>>>> >>>>>> disprove if Crunch via RJava integration is >>>> > viable. >>>> > > > > >> >> >>>>> >>>>>> >>>> > > > > >> >> >>>>> >>>>>> On my part i can try to do it within Crunch >>>> > > framework >>>> > > > > or we >>>> > > > > >> >> can keep >>>> > > > > >> >> >>>>> >>>>>> it completely separate. >>>> > > > > >> >> >>>>> >>>>>> >>>> > > > > >> >> >>>>> >>>>>> -d >>>> > > > > >> >> >>>>> >>>>>> >>>> > > > > >> >> >>>>> >>>>>> On Wed, Oct 17, 2012 at 2:08 PM, Josh Wills < >>>> > > > > >> >> [email protected]> >>>> > > > > >> >> >>>>> >>>>>> wrote: >>>> > > > > >> >> >>>>> >>>>>>> >>>> > > > > >> >> >>>>> >>>>>>> I am an avid R user and would be into it-- >>>> who >>>> > gave >>>> > > > the >>>> > > > > >> >> talk? Was >>>> > > > > >> >> >>>>> it >>>> > > > > >> >> >>>>> >>>>>>> Murray Stokely? >>>> > > > > >> >> >>>>> >>>>>>> >>>> > > > > >> >> >>>>> >>>>>>> On Wed, Oct 17, 2012 at 2:05 PM, Dmitriy >>>> > Lyubimov < >>>> > > > > >> >> >>>>> [email protected]> >>>> > > > > >> >> >>>>> >>>>>> >>>> > > > > >> >> >>>>> >>>>>> wrote: >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> Hello, >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> I was pretty excited to learn of Google's >>>> > > experience >>>> > > > > of R >>>> > > > > >> >> mapping >>>> > > > > >> >> >>>>> of >>>> > > > > >> >> >>>>> >>>>>>>> flume java on one of recent BARUGs. I think >>>> a >>>> > lot >>>> > > of >>>> > > > > >> >> applications >>>> > > > > >> >> >>>>> >>>>>>>> similar to what we do in Mahout could be >>>> > > prototyped >>>> > > > > using >>>> > > > > >> >> flume R. >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> I did not quite get the details of Google >>>> > > > > implementation >>>> > > > > >> of >>>> > > > > >> >> R >>>> > > > > >> >> >>>>> >>>>>>>> mapping, >>>> > > > > >> >> >>>>> >>>>>>>> but i am not sure if just a direct mapping >>>> from >>>> > R >>>> > > to >>>> > > > > >> Crunch >>>> > > > > >> >> would >>>> > > > > >> >> >>>>> be >>>> > > > > >> >> >>>>> >>>>>>>> sufficient (and, for most part, efficient). >>>> > > > RJava/JRI >>>> > > > > and >>>> > > > > >> >> jni >>>> > > > > >> >> >>>>> seem to >>>> > > > > >> >> >>>>> >>>>>>>> be a pretty terrible performer to do that >>>> > > directly. >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> on top of it, I am thinknig if this project >>>> > could >>>> > > > > have a >>>> > > > > >> >> >>>>> contributed >>>> > > > > >> >> >>>>> >>>>>>>> adapter to Mahout's distributed matrices, >>>> that >>>> > > would >>>> > > > > be >>>> > > > > >> >> just a >>>> > > > > >> >> >>>>> very >>>> > > > > >> >> >>>>> >>>>>>>> good synergy. >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> Is there anyone interested in >>>> > > contributing/advising >>>> > > > > for >>>> > > > > >> open >>>> > > > > >> >> >>>>> source >>>> > > > > >> >> >>>>> >>>>>>>> version of flume R support? Just gauging >>>> > interest, >>>> > > > > Crunch >>>> > > > > >> >> list >>>> > > > > >> >> >>>>> seems >>>> > > > > >> >> >>>>> >>>>>>>> like a natural place to poke. >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> Thanks . >>>> > > > > >> >> >>>>> >>>>>>>> >>>> > > > > >> >> >>>>> >>>>>>>> -Dmitriy >>>> > > > > >> >> >>>>> >>>>>>> >>>> > > > > >> >> >>>>> >>>>>>> >>>> > > > > >> >> >>>>> >>>>>>> >>>> > > > > >> >> >>>>> >>>>>>> -- >>>> > > > > >> >> >>>>> >>>>>>> Director of Data Science >>>> > > > > >> >> >>>>> >>>>>>> Cloudera >>>> > > > > >> >> >>>>> >>>>>>> Twitter: @josh_wills >>>> > > > > >> >> >>>>> >>> >>>> > > > > >> >> >>>>> >>> >>>> > > > > >> >> >>>>> >>> >>>> > > > > >> >> >>>>> >> >>>> > > > > >> >> >>>>> >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>> >>>> > > > > >> >> >>>> -- >>>> > > > > >> >> >>>> Director of Data Science >>>> > > > > >> >> >>>> Cloudera <http://www.cloudera.com> >>>> > > > > >> >> >>>> Twitter: @josh_wills <http://twitter.com/josh_wills> >>>> > > > > >> >> >>>> > > > > >> > >>>> > > > > >> > >>>> > > > > >> > >>>> > > > > >> > -- >>>> > > > > >> > Director of Data Science >>>> > > > > >> > Cloudera <http://www.cloudera.com> >>>> > > > > >> > Twitter: @josh_wills <http://twitter.com/josh_wills> >>>> > > > > >> >>>> > > > > > >>>> > > > > > >>>> > > > > > >>>> > > > > > -- >>>> > > > > > Director of Data Science >>>> > > > > > Cloudera <http://www.cloudera.com> >>>> > > > > > Twitter: @josh_wills <http://twitter.com/josh_wills> >>>> > > > > >>>> > > > >>>> > > >>>> > >>>> >>>> >>>> >>>> -- >>>> Director of Data Science >>>> Cloudera <http://www.cloudera.com> >>>> Twitter: @josh_wills <http://twitter.com/josh_wills> >>>> >>> >>> >> -- Director of Data Science Cloudera Twitter: @josh_wills
