DockerCon 2017

So much has already been said about DockerCon 2017 and the many announcements so I won't go there, I'm way too late ... but here's a short (oops ! long !!) post on my trip to DockerCon in Austin, TX at the end of April.
So here is a more personal account of DockerCon which for me was a fantastic event full of opportunities.

As mentioned in this "Unikernels, Unikernels, Unikernels ... DockerCon !! post, I really appreciate the support I received from many people starting with my wife Paulina, as it was not in easy circumstances.

As I tweeted I really appreciate the community that Docker Inc. have built around Docker (Moby), Meetups, Docker Captains and they go out of their way to be inclusive - everyone has a role to play and it is valued.

I appreciated the hand-written card I received as a thank-you as a speaker, I was equally impressed to see Docker employees also receive hand-written thank-you cards for their efforts - e.g. Amir for his Moby Mingle contributions.

DockerCon 2015
This was my second DockerCon, having been lucky enough to attend DockerCon 2015 in San Francisco.
That was a fantastic event, that I was so lucky to attend especially as expenses were covered by Docker after winning the "Docker Paris Hackathon" in Dec 2014 with Mario Loriedo - and I should point out that Mario was the brains behind that Hackathon win with "our Sublime Docker" entry.

I really enjoyed DockerCon 2015, able to attend the pre-conference Hackathon (my proposed entry, "The Phedds" from the @PhenomalDocker team, and the resulting hack).  That was a great opportunity to make contacts before the conference and the conference itself was really interesting - my best conference so far.


I mention all this just to emphasize that DockerCon 2017 was even better in my experience crammed full of events and possibilities to meet people and make interesting contacts.

DockerCon 2017 - VIP reception
It all started with a missed connection at Houston which I thought would make me miss the "VIP reception" for speakers on the Monday evening, but thankfully as I dropped my suitcase in my Austin hotel room at 20h35 with only 25 mins left to find the venue and attend I figured it was worth it ... in my quest for contacts in the Docker eco-system ..

Not easy joining a party in full swing but thankfully Victor Coisne the Docker Community Manager saw me and said hi ... just as I was leaving ... that made all the difference, so I stayed a while meeting a few people such as Docker Captain Dan Finneran of HPE - we work in neighbouring teams, Mano Marks and several others.  A great start to DockerCon.

Before DockerCon 2017 - I can't sleep so I have to run ...

I love to run or cycle when I travel ... usually cycling is impractical (though I remember a crazy ride downtown HongKong and then around the Island one time ... but it had taken a while to find somewhere to rent a bike).

I love discovering a place like that and now I use runtastic to capture the experience, it's nice to browse through my runs seeing where I've been ... the last 4 runs have been Austin, Montreal, Madrid and Grenoble ...

Jet-lagged, I went out for a run at 6am.  It was pretty dark even on the way back before 7am so it was a little dangerous in the park - almost fell going down a step I didn't see.  I was amazed at the number of runners I saw, some of them sensibly running with headlamps strapped to their forehead.

DockerCon 2017 - Moby Mingles
Docker introduced the concept of Moby Mingles for this conference allowing anybody to propose a subject to discuss in 1-1 meetings.  I would have proposed something in Unikernels but of course Amir of the MirageOS team had already done that.

There were many interesting subjects proposed but the three I was really interested in were the three proposed by Amir: Unikernels, FaaS (functions as a service) and IoT.  In the end I settled for Uniikernels as this was a golden opportunity to exchange with Amir prior to my presentaton the next day.  He invited Johnny Mkhael along also, this was great as Johnny and I had some interesting talks and as he is Paris based we hope to meet in the future - especially as he lives in the same town as my Chilean sister in law, Marcela.

Johnny impressed me by his blogging on http://jmkhael.io/ straight away at DockerCon, I could learn something from him ;-)

DockerCon 2017 - the conference ...
Then of course the conference itself started with the keynotes.

I didn't intend to attend many of the presentations as I figured it would be better to spend time either meeting people, looking at the booths and preparing my own presentation !

I did attend both days keynotes which I really enjoyed - for me the announcement of LinuxKit was really important.

I also attended Abby Fullers (Amazon Developer Evangelist) "Creating Effective Images" and Brendan Greggs (Netflix) excellent "Container Performance Analysis" talks.

DockerCon 2017 - My Unikernels presentation
I was surprised to discover that the 20 minute "community" presentations would be in part of the exhibition area rather than in a separate room.  Learning this I immediately decided to not attend any of those sessions feeling that they would be difficult to follow because of the background noise of the exhibition area.  Nevertheless as a speaker I didn't have any problem and felt at ease presenting to a sea of faces and I didn't even think to estimate how many people were attending ... 100 maybe?

I'd looked at the agenda and decided I could overrun my 20 min slot if needed which I did, though when I stopped at 29 mins and opened for questions they cut the mike ;-)  Nevertheless, I was pleased that several people remained and we discussed for 15 to 20 mins.

I was very pleased over the following days that several people came up to me with positive comments on my presentation - I think this is more that there is a thirst for information on Unikernels today - and I had the chance to meet more MirageOS team members such as Mindy Preston and Heidi Howard (a string believer in Unikernels - a Univ. of Cambridge post doc. rather than MirageOS team member i think).

I was also contacted by Per Uber the CEO of IncludeOS who wanted to discuss about their product.  We had some very interesting discussion.  IncludeOS is not a legacy OS as shown in my slides - not a very wise move calling any active project "legacy" of course.

DockerCon 2017 - the exhibition area

After my talk I was pretty pleased to be able to unwind a little and spent some time browsing the different booths, collecting a few t-shirts along the way.

Actually, my favourite t-shirt was the HPE/Docker t-shirt for it's very quiet tone ...  black t-shirt with small HPE and Docker logos makes this quite a wearable t-shirt - not just another pyjama top !

DockerCon 2017 - The internals summit

The internals summit was held on the Thursday and was a great chance to meet Docker employees, Docker captains and organizers and others.  The goal was to learn about specific Docker, or should I say Moby projects ...

In the afternoon we had different breakout sessions and so I chose to join the Unikernels group initially where we had very interesting disucssions lead by Amir Chaudhary.
I really appreciate how Amir is making efforts to federate the Unikernels community across diverse technology implementations.

I was also very pleased to get the chance to meet Matt Bajor, who's presentation "Look Ma, no OS!" I'd watched and briefly Idit Levine creator of the Unik project.

I later attended the LinuxKit/Infrakit session but joined the session a little late.

DockerCon 2017 - The organizer summit (in parallel with the captain's summit)

On the Friday morning there was an organizer summit, a great opportunity to meet other organizers and discuss what works, what doesn't in organizing meetups and to here from Karen Bazja, Lisa McNicol and Victor Coisne about plans for future organizer community events.

It was appreciated that the meeting ended with a lunch which we shared with the Docker Captains ... a great way to meet more people, in particular I finally got to chat with Alex Ellis.

The journey home
Unfortunately a delayed flight from Newark to Montreal meant an unplanned stopover in Montreal.
The good news was that I managed to change the flight AirCanada were proposing (from a 3 flight periple Montreal-Toronto-Munich-Lyon taking 15 hr to a direct 7hr flight to Geneva) allowing me to have a nearly full day in Montreal before leaving.

Not wanting to take too many risks I headed to Mont Royal and had a nice run before wisely heading back to the hotel to get my bags and off to the airport.

A panoramic view from Mont Royal

I wouldn't have chosen the delay, but this was a nice few hours recompensation ...

Unikernels, Unikernels, Unikernels ... DockerCon !!!

Cutting to rhe chase ... my DockerCon Unikernels talk video and slides are now available

It's the end of a series for me, a fairly tough 6 months of working holidays and weekends to advance on Container Orchestration and Unikernels by presenting in conferences, so finally a blog post or two.

After our Container Orchestration and labs (with Haikel Guemar, Mario Loriedo) at LinuxCon/ContainerCon in Berlin last October I decided to investigate Unikernels.

I was intrigued by reports of "7 Unikernel Projects to Take On Docker in 2015",
and then Dockers' "purchase of Unikernel Systems" in Jan 2016,
closely followed by Brian Cantrills' post "Unikernels are unfit for production"
and very interesting discussions on "Hacker News".

Bryan can be deliciously outspoken by the way ...

The culmination of this initial investigation was being able to present at DockerCon 2017 in Austin in April.
That was such an amazing opportunity for me and I have to say a big thanks to those who supported me on this (My long suffering wife, Paulina, of course !! Christian Schutz, Bruno Cornec, Patrick Masse at HPE, Jenny Burcio and Victor Coisne at Docker Inc) and thanks also to Amir Chaudhry, Mindy Preston and Heidi Howard of the MirageOS team for their encouragement at the event.

The talk video and slides are now available

There were a few steps along the road to DockerCon ...

From that initial interest in Unikernels I decided to respond to a few call for papers and was initially accepted at DevConf.cz, so to warm up I did a  "Docker Grenoble" Meetup to prepare.  Thanks to those who participated to that "alpha release" presentation ... and for the great comments and questions.

Slides at https://www.slideshare.net/MichaelBright3/2017-jan19-meetupunikernels.


Shortly after came DevConf.czhttps://devconf.cz/, at Brno in the Czech Republic close to RedHat's European center of engineering.  This was my first, but hopefully not last time attending or presenting at DevConf.cz.  The first day started with Mario and I running our Container Orchestration lab.  On the morning of my Unikernels presentation I was preparing in my hotel room when I started to see tweets about a Unikernels debate between Steve Pousty "OpenShift Developer Advocate" and Dan Walsh "Mr. SELinux".  The tweets had me thinking there was quite an anti-Unikernel sentiment at the conference which was a little worrying - in fact I've since watched the video and seen that Steve brilliantly argued that Unikernels are worth investigating ...

Slides at https://www.slideshare.net/MichaelBright3/2017-jan29-devconfczunikernels

I had the chance to present on NFV, and Docker tools presentations and Docker 101 ad Orchestration labs with Bruno Cornec at HPE TSS in Cannes in February ... but no Unikernels.  I was amazed one afternoon to check my e-mail to see a mail from Jenny Burcio and Victor Coisne telling me I'd been accepted to give a talk at DockerCon ... very important to me !

I scurried back to Grenoble on the Thursday evening just in time to be able to present on Unikernels at Snowcamp.iohttps://snowcamp.io/2017/en/welcome in Grenoble.  Thanks to the Snowcamp team for that opportunity.

Slides at here https://www.slideshare.net/MichaelBright3/2017-feb10-snowcampiounikernels


In March HPE TES (aka "HPE High Performance Computing and Open Source Linux Technical Excellence Symposium 2017") I had the chance to present on Unikernels,

The official slides are not available, but were based on this slide set on github

So after a series of quite different presentations, some with no demo, some with one demo and the Snowcamp.io presentation where I feverishly created some demos whilst watching the previous speaker session .... I was ready to present at DockerCon.

Despite the initial intention to show several Unikernel technologies, I decided that this wouldn't work in my 20 min slot (well no one was after me so I stole 29 mins in the end ...).

I decided to give an overview of the technologies and follow this with a demo of an example MirageOS unikernel for a DNS server (a modified version of the example https://github.com/mirage/mirage-skeleton/tree/master/applications/dns) showing
- how "mirage configure -t unix" could be used to build a standard Linux executable of the application
- how "mirage configure -t ukvm" could be used to build a bootable unikernel image (no OS folks !) of the application
- running the unikernel locally under ukvm
- running the unikernel under Google Compute Engine

Note: There is no currently available IaaS which is ideally suited to running Unikernels, with GCE it was necessary to create an image with 1Gby disk for example, but the point was to show that the Unikernel technology is there even if the IaaS aren't ready yet.

That's it folks, thanks to all those who contributed in different ways, it's really appreciated !

Next up is a Container Orchestration lab with Haikel, and a Jupyter-in-depth lab with Matthias Buissonier of the Jupyter core team at PyConUS next week in Portland, Oregon.

After that a bit of rest before reflecting on how to get to DockerCon Europe ...

Using Python with MongoDB

On Thursday evening I hosted the Grenoble Python User Group - short on speakers I proposed to present on "Using Python with MongoDB" - not easy at the moment with lots of NFV work and preparing to move house.

Anyway, I made it and so I've posted both my slides on SlideShare

and the Jupyter notebook ("what else?") on github

I hope to use this as the basis for some future presentations/labs around Python and NoSQL databases.

Creating a Docker Build Lab with Jupyter

In keeping with my "Jupyter with everything" moniker (not to mention Docker, Docker, Docker), I recently had the opportunity to create and run a Docker Build Lab with about 20 participants.

To actually create the Docker Lab I used Jupyter with the bash_kernel to create and document the examples.

Using Jupyter was extremely useful - especially when ill, sat in a hotel room finishing the lab (work was crazy in the weeks before the conference).  It becomes extremely easy and fast to rerun the entire notebook to be sure that everything works and recreate a printable document for use.

Although the lab execution was performed in RHEL7.1 virtual machines, I prepared the lab on a Windows PC running a Ubuntu-LTS via Vagrant.  This worked perfectly - though some students were confused to see mention of 'vagrant' user within the lab document (I'll have to be a bit more rigourous on that next time).

I had some small problems creating a lab document which I wanted to be able to distribute in class as a PDF..
I had trouble producing a PDF (well I could just print the notebook in Jupyter but the stylesheet was causing this to print without colour which made it less readable - hacked around this to print to PDF).
My hack worked and so I could distribute a colour PDF.

I decided to archive to github the Jupyter notebook (.ipynb) also exported as HTML and markdown(.md) aswell as the PDF.

The lab is here https://github.com/mjbright/DOCKER_LABS.
This is actually a clone of the repo I used (whence some links may go to the original version) as I want to work this lab as a series of labs in future conferences.

This was definitely a beta run.

I'd like to break this lab down into several labs
- Docker build essentials: focussing more on the low-level details
- Building an application: going step by step to building an orchestrated solution

Hopefully I'll get the chance to rerun this at MixIT here in France in April, or at HPE TSS in June.

Suggestions for improvement are more than welcome.

"Ipython vers Jupyter", my Jupyter talk at Pyconfr, Pau, France.

I've posted the slides of my talk about Jupyter which I gave at Pyconfr, in Pau, France last Saturday, here on Slideshare, or here with the IPython notebook source on github.

I'll put a link to the talk video when that is published, though I'm a little ashamed that my slides were seriously cropped (lesson learnt: never believe them when they tell you you'll have 1440x960 resolution ... you'll get 1024x768 like anyone else !!).  Erreur de debutant as they say around here ;-)

It wasn't squeezing all that into 20 mins including a demo, so I hope to go much farther in other conferences later.

I was pleased to be able to use Damian Avila's RISE (Live reveal) extension allowing to edit and present the notebook in slide format.  For me it'a a killer app for Jupyter ... your mileage may vary.

I'll also post comments about the questions I got during and after the presentation.

One question in particular was whether or not there was a tutorial describing the use of RISE for producing presentations.  In fact apart from the github page itself, here, with it's README, I'm not aware of any tutorial but I do think it's needed.  I'll try soon to write a short tutorial based on my experiences.

Jupyter - an amazing tool

So after months - well years already - of me saying Docker-Docker-Docker, and my colleagues thinking I'm Docker sponsored given the preponderance of Docker t-shirts I wear, there's a new kid on the block.

From now on it's going to be Docker-Jupyter-Docker-Jupyter ...

Jupyter, the multi-language notebook software derived from the IPython project is now in it's 1.0 release since August.

On Thursday I presented Jupyter at a Meetup of our local Grenoble Python User Group.

This was a useful dry-run for my presentation at Pyconfr in Pau on October 17th (French).
Though that will be a 20 mins presentation, quite a bit shorter.

The presentation mixed slides and demo integrated thanks to the excellent Jupyter RISE extension from Damian Avila.  This allowed to execute code within the presentation slides themselves in the browser.  I find this very powerful and it's something I will continue to develop for my personal and professional presentations and demos.

You can see an example below of code being executed within the presentation slide itself in a browser. In this case demonstrating the use of Sympy to solve a quadratic equation.

Note that the use of Jupyter means that this is live code.  I could modify the markdown (add more descriptive text other than the title), or modify the Input cell to express a different formula and then solve that equation within the presentation.
Live coding !!

I've posted the Jupyter notebook I used on github here:
                2015-Sep-24_Pyugre_HP_DataAnalysisLiftOffForJupyter.ipynb

Note: I've also submitted a proposal for Confoo in Montreal next February ... you can vote for that talk here (but you'll need to register)

Note: In a followup post here I describe how I used Jupyter to perform some basic Docker demos the next day during a training session.

Jupyter - an educational tool - for demonstrating or teaching about Docker

On Friday I did an N-th presentation and demo of Docker at work as part of an OpenStack training.

Whilst the slides were in Powerpoint-* the demo was conducted principally using Jupyter, the multi-language notebook tool derived from IPython.

* -  this time, but I plan to use Jupyter/RISE for an integrated presentation/demo next time.

As I'd presented Jupyter at a Meetup of our local Grenoble Python User Group on Thursday, and I'm preparing to present at Pyconfr in Pau on October 17th (French) I was eager to really apply Jupyter for some educational use.

Note: I've also submitted a proposal for Confoo in Montreal next February ... you can vote for that talk here (but you'll need to register)

I was also keen to test new formats for presenting.
On Thursday I'd successfully mixed presentation with demo - using the excellent Jupyter/RISE extension from Damian Avila - allowing me to execute code within the presentation slides themselves in the browser.
I find this very powerful and it's something I felt I really needed for my Docker demos.

So this time I didn't have time to redo my slideset, but I did have time - a morning - to put together a demo environment.

When I have more time I'll extend that work to be a much more comprehensive demo.  I've quite a lot of ideas for that around basic Docker capabilities but also other tools such as Machine, Compose, Swarm ... and more ... but more on that in a later post ...

Here's a screenshot of just one part of the demo.
We can see text describing what's happening (this is entered as Markdown), followed by the input cell where we enter real commands, followed by the output from the command.

So this allows to demonstrate and document live coding and later publish the result -as the above Jupyter notebook posted on github.

Here's the notebook showing the demo steps, presented as a narrative thanks to the notebook format.  You can view directly the notebook rendered on github here:

2015-Sep-25_Docker_Demo/2015-Sep-25_Docker_Demo.ipynb

or if you want to run the notebook in a suitable environment you can download the raw notebook here:

https://raw.githubusercontent.com/mjbright/jupyter_notebooks/master/2015-Sep-25_Docker_Demo/2015-Sep-25_Docker_Demo.ipynb

To use that notebook you'll need to have Docker installed and Jupyter.
I don't intend to describe the intricacies of installing Docker and Jupyter on various systems, there are many articles available on this.  I do just provide an overview below.

This was the first post on using Jupyter to demo Docker, there will be many more to follow as I evangelize both tools at work and in conferences.

---

Setup Notes

For Docker you'll need to install directly on a Linux machine or if on Windows or Mac OSX you'll need to use a virtualized Linux.  You can use the Docker Toolbox (basically a combination of Kitematic GUI, VirtualBox and a linux image).

My demo was performed on a Windows machine.
I personally prefer to have more control over my virtual machines, and so I use Vagrant to install my virtual machine running under VirtualBox.
The Vagrantfile I used is available here.

I also used Jupyter to run/record the demo.
The best way to run Jupyter on either Windows or Linux is to install the Anaconda distribution, available from Continuum Analytics here.

You can find out more about the Jupyter project here, or try it out online here

Using different kernels with Jupyter notebooks under Windows8/Cygwin ... the story so far

Not a post of very general interest but this might be of help to those using Jupyter on Windows.

I've been experimenting quite a bit with IPython and Jupyter notebooks recently.
I've been using them for various MOOCs such as EdX's courses on Apache Spark and Machine Learning or Courseras' Data Science Specialization.

This is all good preparation for my

• Python User Group Meetup "Data Analysis ... lift-off for Jupyter" on 24th September and
• Pyconfr "IPython vers Jupyter" presentation on 17th October.

For the moment my best luggables are my corporate Windows laptop or my wifes' MacBook Air (great but I struggle with the Azerty keyboard ...) so I intend to present with the Windows laptop but this does present some problems (other than just it's weight!).

So I'm planning on using my day to day Cygwin environment with a "native" Jupyter, via the Anaconda suite.  I'll also have a couple of backup solutions just in case

• on the same Wvagrant/Ubuntu/Docker/Jupyter stack
• and a remote Fedora/vagrant/Ubuntu/Docker/Jupyter stack ...

can't be too careful.

I'd be satisfied with the Windows environment if I could get "everything" working without problems.

out of the box I had Jupyter with Python3 OK ("no brainer" thanks to Anaconda).

The R Kernel

The first kernel I added was the 'irkernel' for R so I could do my MOOCs.  That went surprisingly well, once I'd installed R, installed the irkernel package I just had to manually set the path to R in my irkernel/kernel.json file.  A surprisingly easy start.

RISE

Next up was Damian Avilas' LIVE Reveal.js module RISE.  This also installed like a charm.

Great, I'll be able to do my reveal slides directly in the Jupyter notebook ... and I can even embed live code !!

Bash_kernel

I really wanted bash_kernel as I spend most of my day in the Cygwin bash in ConEmu.

This failed to install because of a dependency on pexpect ... as I'd already tried in the past with a Windows version of pexpect I gave up a little easily for now.

That would have been so nice ... looks like I'll need yet another vagrant box to be able to do my Docker demos from Jupyter then!

Update: 2016-May-16 - Metakernel_bash
I've recently been looking at Calystos' Metakernel repository on github.
I've created a fork which allows me to use Metakernel on Cygwin/Windows and also integrates some graphical capabilities.  Unfortunately the graphical capabilities only apply to the Metakernel_bash for the moment, not to other Metakernel magics, I hope to do some Pull Requests to Calysto later.

In the meantime you can try out my fork at
https://github.com/mjbright/metakernel

The original Metakernel from Calysto is available here
https://github.com/Calysto/metakernel

I'll be using this for my EuroPython 2016 talk in July.

IJavaScript

Next up was IJavaScript but alas this has a dependency on the node module gyp which was failing to install.  JSDOM3 was suggested as an old version without the gyp dependency but this failed too.

So I'll just have to make do with %%javascript IPython magic.

IJulia

Finally to the point of this post.

It seemed rather fitting to have the Python/Julia/R triumvirate as a minimum language set.

So I installed the latest Julia v0.3.1, I ran Pkg.add("IJulia") from the Julia console as suggested.

However when I launched the Julia kernel from the Jupyter notebook it was failing to find the Compat library.

To cut a long story short. I found that launching Julia from a DOS command prompt or Windows file explorer then Compat was visible ("using Compat" works).  I've never used Julia at all before but I could see that Compat and other libraries were being stored under my Windows USERPROFILE at

C:\Users\mjbright where as under cygwin I have my HOME set to D:\.

If I launched the DOS command console from Cygwin then I would get Compat not found from "using Compat" in the Julia console.

Setting HOME or JULIA_PKGDIR to appropriate values allowed Julia to find the Compat library.

Now I didn't want to modify my HOME directory generally so I tried setting on the command line.

    JULIA_PKGDIR="C:/Users/mjbright/.julia/v0.3"    c/Progs/Dev/Julia-0.3.11/bin/julia.exe 

or

    HOME=c:/Users/mjbright/    c/Progs/Dev/Julia-0.3.11/bin/julia.exe

both did the job.

but prepending these to "jupyter notebook" produced the assertion error reproduced below.

NOTE: I did try launching jupyter notebook from a DOS command prompt and that worked fine .. but please no, I just don't do DOS command prompts unless I *really* have to !  I wanted something I can call from my Cygwin bash command-line.

The solution was to create a minimal bash script to launch the notebook which sets one of these variables and then launch the notebook via cmd.exe (!).

So now I have:

JULIA_PKGDIR="C:/Users/mjbright/.julia/v0.3" cmd /c c:/Progs/Anaconda3/Scripts/jupyter.exe notebook

not pretty but it does the job ...

OK, now to get some real stuff done ...


Error log when launching jupyter directly from cygwin:

[I 17:47:36.652 NotebookApp] Kernel started: 5d07f88a-0e81-4e9b-8844-fd9d88cf6d5f^M
[W 17:47:36.663 NotebookApp] 404 GET /kernelspecs/julia-0.3/logo-64x64.png (::1) 3.91ms referer=http://localhost:8887/notebooks/Untitled5.ipynb?kernel_name=julia-0.3^M
Starting kernel event loops.A^@s^@s^@e^@r^@t^@i^@o^@n^@ ^@f^@a^@i^@l^@e^@d^@!^@
^@
^@P^@r^@o^@g^@r^@a^@m^@:^@ ^@C^@:^@\^@P^@r^@o^@g^@s^@\^@D^@e^@v^@\^@J^@u^@l^@i^@a^@-^@0^@.^@3^@.^@1^@1^@\^@b^@i^@n^@\^@j^@u^@l^@i^@a^@.^@e^@x^@e^@
^@F^@i^@l^@e^@:^@ ^@s^@r^@c^@/^@w^@i^@n^@/^@r^@e^@q^@-^@i^@n^@l^@.^@h^@,^@ ^@L^@i^@n^@e^@ ^@2^@2^@3^@
^@
^@E^@x^@p^@r^@e^@s^@s^@i^@o^@n^@:^@ ^@0^@
^@[W 17:47:46.685 NotebookApp] Timeout waiting for kernel_info reply from 5d07f88a-0e81-4e9b-8844-fd9d88cf6d5f^M
[I 17:47:48.649 NotebookApp] KernelRestarter: restarting kernel (1/5)^M
WARNING:root:kernel 5d07f88a-0e81-4e9b-8844-fd9d88cf6d5f restarted^M
Starting kernel event loops.
Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ACCESS_VIOLATION at 0x6bfdd386 -- uv_poll_stop at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
uv_poll_stop at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
stop_watching at poll.jl:263
close at C:\Users\mjbright\.julia\v0.3\ZMQ\src\ZMQ.jl:121
jlcall_close_1370 at (unknown line)
jl_apply_generic at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
jl_profile_is_running at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
jl_gc_run_all_finalizers at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
uv_atexit_hook at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
jl_exit at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
_start at client.jl:404
jlcall__start_364 at (unknown line)
jl_apply_generic at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
unknown function (ip: 4200686)
julia_trampoline at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
unknown function (ip: 4202914)
unknown function (ip: 4199436)
unknown function (ip: 4199739)
BaseThreadInitThunk at C:\windows\system32\KERNEL32.DLL (unknown line)
RtlUserThreadStart at C:\windows\SYSTEM32\ntdll.dll (unknown line)
RtlUserThreadStart at C:\windows\SYSTEM32\ntdll.dll (unknown line)

Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ACCESS_VIOLATION at 0x6bfdd386 -- uv_poll_stop at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
uv_poll_stop at C:\Progs\Dev\Julia-0.3.11\bin\libjulia.dll (unknown line)
stop_watching at poll.jl:263
close at C:\Users\mjbright\.julia\v0.3\ZMQ\src\ZMQ.jl:121