LightGBM: Index out of bounds exception in LightGBM when using LGBM_DatasetCreateByReference and LGBM_BoosterResetTrainingData
Using LGBM_DatasetCreateByReference and LGBM_BoosterResetTrainingData causes in index out of bounds exception:
Steps to reproduce:
- Clone LightGBM.Net from https://github.com/rca22/LightGBM.Net
Switch to the(no longer necessary, use master branch)update_jun_20branch- Put a Debug build of LightGBM (built from master) in the
LightGBM.Net\native\Debugfolder - Make the Dataset constructor here public instead of private.
- Uncomment and run the test BoosterTest.ResetTrainingData in LightGBMNet.Train.Test
All this test does is create a dataset, then create a second dataset from the first by taking half the rows, and then calls LGBM_BoosterResetTrainingData on the booster with the second dataset.
Note that this used to work with a previous version of LightGBM built from master last year.
About this issue
- Original URL
- State: closed
- Created 4 years ago
- Comments: 15 (4 by maintainers)
@guolinke Thanks a lot. I’ve updated the reproduction instructions above to use the master branch, now you will need to re-enable the failing test and corresponding failing constructor as described.
The group of maintainers here is also a small group of volunteers with limited time, and we cannot take on the task of reproducing a bug using a library that we do not maintain. We will be happy to help you when you can find time to reproduce this issue using only the software managed in this repo.