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    Ember Sabsalon
    @embersabsalon
    Hi, I tried using a web app that would access h20 flow using REST API routes and when I tried to delete a frame (it would delete the frame after predicting), this happens:
    Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://139.59.249.87:54321/3/Frames/1i3uso. (Reason: CORS header 'Access-Control-Allow-Origin' missing).
    I'm using ruby rails in order to build the web app. Any advice?
    I used this route: DELETE /3/Frames/{frame_id}
    and this coffee script is used:
    deleteUploadFrame = (frame_id) ->
    $.ajax
    url: "http://139.59.249.87:54321/3/Frames/#{frame_id}"
    method: 'DELETE'
    Mateusz Dymczyk
    @mdymczyk
    @embersabsalon are you running your coffeescript script from a different domain than the H2O server is running in? in that case you’d need to use JSONP for cross domain communication but I’m not sure if our REST service supports that, maybe someone else from the team could answer that part
    Ember Sabsalon
    @embersabsalon
    Yes I'm running it from a different domain
    I'll try using JSONP for this. Thank you so much
    s3ni0r
    @s3ni0r
    Hi everyone, is it possible to protect H20 flow UI with an HTTP authentication mechanism?
    Mateusz Dymczyk
    @mdymczyk
    @s3ni0r yes, please check the documentation http://docs.h2o.ai/h2o/latest-stable/h2o-docs/security.html
    s3ni0r
    @s3ni0r
    Yep :), i used this http://docs.h2o.ai/h2o/latest-stable/h2o-docs/security.html#hash-file-h2o-client-side, hash file method which seems the simplest, thank you very much!
    Deepak Singh Rawat
    @deepak_s_rawat_twitter
    Hi, Does anyone know when will flow support MOJOs?
    Erin LeDell
    @ledell
    @deepak_s_rawat_twitter I don’t have an estimate, but you can follow the progress here: https://0xdata.atlassian.net/browse/PUBDEV-3365
    Deepak Singh Rawat
    @deepak_s_rawat_twitter
    Thank you @ledell !
    Micah Stubbs
    @micahstubbs
    Flow now supports MOJOs
    Deepak Singh Rawat
    @deepak_s_rawat_twitter
    Hi, I wanted to know is there a way to print probabilities of a binary classification?
    Data Scientist
    @JayKimBravekjh
    Hi everyone. I joined this room first time today, nice to meet you all
    Sooraj S
    @sooraj2189
    Hello i am having a problem with h2o deepwater

    While trying to train a lenet model for multiclass classification using h2o deepwater using mxnet backed i am getting the following errors:

    Loading H2O mxnet bindings.
    Found CUDA_HOME or CUDA_PATH environment variable, trying to connect to GPU devices.
    Loading CUDA library.
    Loading mxnet library.
    Loading H2O mxnet bindings.
    Done loading H2O mxnet bindings.
    Constructing model.
    Done constructing model.
    Building network.
    mxnet data input shape: (32,100)
    [10:40:16] /home/jenkins/slave_dir_from_mr-0xb1/workspace/deepwater-master/thirdparty/mxnet/dmlc-core/include/dmlc/logging.h:235: [10:40:16] src/operator/./convolution-inl.h:349: Check failed: (dshape.ndim()) == (4) Input data should be 4D in batch-num_filter-y-x
    [10:40:16] src/symbol.cxx:189: Check failed: (MXSymbolInferShape(GetHandle(), keys.size(), keys.data(), arg_ind_ptr.data(), arg_shape_data.data(), &in_shape_size, &in_shape_ndim, &in_shape_data, &out_shape_size, &out_shape_ndim, &out_shape_data, &aux_shape_size, &aux_shape_ndim, &aux_shape_data, &complete)) == (0)

    The details of my setup :
    Ram : 12gb
    Graphics card : Nvidia 920mx driver version : 384.90
    Cuda : 8.0.61
    cudnn : 6.0
    R version : 3.4.3
    H2o version : 3.15.0.393 & h2o-R package : 3.16.0.2
    mxnet : 0.11.0
    Train data size : 400mb (when converting to the h2o frame object it comes around 800mb)

    Things i have done :
    1.) Gave enough memory to java heap while running h2o cluster (java -Xmx9g -jar h2o.jar)
    2.) Build the mxnet from source for gpu
    3.) Monitored the gpu and system via nvidia-smi and system monitor. At no point do they eat up all the ram to show "out of memory" issue. I still will be having around 2-3gb free before the error shows up
    4.) Have tried with tensorflow-gpu(build from source). Checking the pip list made sure that its installed but during model creation in R it gives the error :
    Error: java.lang.RuntimeException: Unable to initialize the native Deep Learning backend: null
    5.) The only method i got it the h2o deepwater to work with all the backend and gpu is through docker setup provided in the installation tutorials.

    I wanted the same functionality in my laptop instead of using docker. Any help or advice will be greatly appreciated !

    Paulo Haddad
    @paulochf

    hi guys

    i'm using flow and i would like to split the data into 3 parts: train, validation and test. that's easy.

    but, for the test split, i would like to drop the response column. is there any way to do that?

    thanks!

    Erin LeDell
    @ledell
    you don’t need to drop the response column from the test set, H2O will ignore it. if you are trying to use Flow as a data munging tool, its not meant for that so its not able to do much more than split the data (can’t remove columns and save csv)
    it’s easy to do that in R or Python though!
    Paulo Haddad
    @paulochf

    if you are trying to use Flow as a data munging tool, its not meant for that so its not able to do much more than split the data (can’t remove columns and save csv)
    it’s easy to do that in R or Python though!

    Thanks. I'm aware of that!

    you don’t need to drop the response column from the test set, H2O will ignore it

    I had this hunch, but I couldn't find this info anywhere. So, it's like the model I use would keep the response column name and, when I give it another data with this column, it would not use it?

    Erin LeDell
    @ledell
    @paulochf it depends on what you’re trying to do with it. If you are generating predictions, then it ignores the column bc it’s not needed. if you are generating performance metrics, then it will use the test set labels to compute those metrics.
    Paulo Haddad
    @paulochf
    @ledell oh, i get it. Yeah, I'm used to do these stuff manually, and it's my first model using Flow. Some things are magical yet, heh.
    Erin LeDell
    @ledell
    maybe a bit too magical!
    Paulo Haddad
    @paulochf
    thanks for your time!
    Erin LeDell
    @ledell
    no prob
    Paweł Cejrowski
    @pcejrowski
    Hi, I wanted to enhance the Flow UI, but I have hit problems with setting up the environment.
    At this point I'm able to run make from h2o-flow project and the project is built in ../h2o-3/h2o-web/src/main/resources/www/flowso it looks to be present from the h2o-3 perspective but I'm still unable to see those changes in the browser.
    I have 'flow.js` modified and the server still replies with the old version of that script.
    Followed the instructions on setting up the environment in Idea.
    Have anyone faced this problem? Could you please help me with that.
    Paweł Cejrowski
    @pcejrowski
    Hello, is this room still maintained? I've just created PR to Flow UI: h2oai/h2o-flow#63. Should I create some ticket for that on Jira? Which project? H2O-3 PUBDEV?
    Paweł Cejrowski
    @pcejrowski
    Moreover I'm really surprised that build directory is checked into git. I'm pretty sure it should be ignored...
    Erin LeDell
    @ledell
    hi @pcejrowski the build directory is checked in because the H2O build process pulls the built front-end instead of trying to build it from scratch.
    thanks for the contribution @pcejrowski someone has been assigned to review this
    also sorry to miss your message from Feb 22… usually i notice new messages in this channel, but i missed this one. you can always ping us over in h2o-3 to get our attention. thanks!
    Paweł Cejrowski
    @pcejrowski
    OK, thanks!
    Eric McGregor
    @ericmcgregor
    Is there an easy way to format the results of the predictor output for classification predictions that have thousands of classes? I get a csv which has 2100 columns. Does h2o flow allow for downloading as JSON or is there a way to curl the running model and just pass in one prediction at a time?
    Tony Mack
    @tonmanayo
    hey, has anyone here loaded a dataframe from a sql database into flow?
    I am able to start up an h2o instance and then load a data frame from python and then go to my browser and see the dataframe in h2o flow but I can only load one data frame, it always overwrites that dataframe when I try and import another one
    Erin LeDell
    @ledell
    @tonmanayo sounds like you are using the same key each time? http://docs.h2o.ai/h2o/latest-stable/h2o-py/docs/h2o.html?highlight=import_file#h2o.import_file. when using h2o.import_file, try setting destination_frame as something different each time
    Byron Rogers
    @PerformanceGenetics

    I have been trying to import data via SQL in Flow - the JDBC server connection that I have is jdbc:sqlserver://eztw6l0aw7.database.windows.net:1433;database=<database>;user=<user>@eztw6l0aw7;password={your_password_here};encrypt=true;trustServerCertificate=false;hostNameInCertificate=*.database.windows.net;loginTimeout=30;

    I have entered this into the connection URL and the table name and the user and pass in the appropriate fields and pressed "Import" but got nothing. I have tried the URL with deleting the database=, user= and password= fields out or in and neither works. I have no problem importing a CSV file

    Arnab Biswas
    @arnabbiswas1
    Can I execute a particular H2O Flow Notebook from command line? I want to trigger the execution of a particular instance of H2O notebook at regular interval using a cron job. Just to make my question explicit, a particular Jupyter Notenook can be executed from command line : https://stackoverflow.com/questions/35545402/how-to-run-an-ipynb-jupyter-notebook-from-terminal. Please let me know.
    Xiaobo Gu
    @guxiaobo
    Hi, does anyone know what client side framework ho2-flow web interfaces use, thanks
    Erin LeDell
    @ledell
    @guxiaobo it's a custom framework written in coffescript
    Xiaobo Gu
    @guxiaobo
    Thanks @ledell
    Tony
    @Shysoong
    hi, i cant find the bower.json in the project’s root directory, how could it be registered to the bower repo?
    Does anyone know about it?
    Honza Sterba
    @honzasterba
    Hi Tony, h2o-flow is no longer built with bower nor is it released into the bower repo, instead we use just git tags to release new versions.
    Tony
    @Shysoong
    @honzasterba Hi Honza Sterba,I found a bower.json in the h2o-web project,and there is a h2o-flow dependency defination ,if h2o-flow is no longer released into the bower repo,how could this make sense?
    Honza Sterba
    @honzasterba
    I think the gradle log explains it the best:
    Task :h2o-web:installBowerPackages
    bower h2o-flow#0.10.3 cached https://github.com/h2oai/h2o-flow.git#0.10.3
    bower h2o-flow#0.10.3 validate 0.10.3 against https://github.com/h2oai/h2o-flow.git#0.10.3
    bower h2o-flow#0.10.3 install h2o-flow#0.10.3