Hello all,   I want to ask the community some wisdom in tuning the als model parameters with Oryx 1.x. The computation and serving layer are all in an isolated box for tuning purpose and will use local-computation. Based on my current understanding of the system, I plan to carry out the task in following manner:   1. prepare a csv file 2. stop oryx, reset/wipe any current als model, start oryx 3. train als model (/ingest) 4. evaluate the model and post the result (a custom code) 5. modify oryx.conf parameter values, go back to step 2   The main difficulty i have is with step 2. I'm not sure what happens if I were to keep calliing /ingest with the same data and a changed oryx.conf file, so I'm thinking I should stop oryx(both computation and serving) and reset the system to clean slate.   My questions are: a. Is there an alternative to achieving tuning with Oryx 1.x b. Do both oryx-computation and oryx-serving need to stop before wiping the contents of $instance.dir?     ... View more

Hi I'm writing an oryx modification to fetch all user ids in the model. I've referenced https://github.com/cloudera/oryx/commit/1df9c177d4087114c2cc391a085e1d61d16b577c commit to implement the functionality. Now I'm trying to add in some test cases in the SimpleIT, but I cannot figure out where the test data set is.   https://github.com/cloudera/oryx/blob/1df9c177d4087114c2cc391a085e1d61d16b577c/als-computation/src/it/java/com/cloudera/oryx/als/computation/SimpleIT.java#L45-L47   references grouplens100k, but where do you get the file? I can't seem to find it in the code base.   What am I missing here?   ... View more