html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/463#issuecomment-347165242,https://api.github.com/repos/pydata/xarray/issues/463,347165242,MDEyOklzc3VlQ29tbWVudDM0NzE2NTI0Mg==,5929935,2017-11-27T12:17:17Z,2017-11-27T12:17:17Z,NONE,"Thanks, I'll test it!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,94328498
https://github.com/pydata/xarray/issues/463#issuecomment-347140117,https://api.github.com/repos/pydata/xarray/issues/463,347140117,MDEyOklzc3VlQ29tbWVudDM0NzE0MDExNw==,5929935,2017-11-27T10:26:56Z,2017-11-27T10:26:56Z,NONE,"Ok, I found my problem. I had to increase `ulimit -n`","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,94328498
https://github.com/pydata/xarray/issues/463#issuecomment-347126256,https://api.github.com/repos/pydata/xarray/issues/463,347126256,MDEyOklzc3VlQ29tbWVudDM0NzEyNjI1Ng==,5929935,2017-11-27T09:33:29Z,2017-11-27T09:33:29Z,NONE,"@shoyer I just ran into this issue again (with 8000 files, each 50 kB), I'm using xarray 0.9.6 and work on some performance tests. Is there any upper limit of number of files?

```
  File ""/home/shahn/.pyenv/versions/warp_conda/envs/pyraster_env/lib/python2.7/site-packages/xarray/backends/api.py"", line 505, in open_mfdataset
  File ""/home/shahn/.pyenv/versions/warp_conda/envs/pyraster_env/lib/python2.7/site-packages/xarray/backends/api.py"", line 282, in open_dataset
  File ""/home/shahn/.pyenv/versions/warp_conda/envs/pyraster_env/lib/python2.7/site-packages/xarray/backends/netCDF4_.py"", line 210, in __init__
  File ""/home/shahn/.pyenv/versions/warp_conda/envs/pyraster_env/lib/python2.7/site-packages/xarray/backends/netCDF4_.py"", line 185, in _open_netcdf4_group
  File ""netCDF4/_netCDF4.pyx"", line 1811, in netCDF4._netCDF4.Dataset.__init__ (netCDF4/_netCDF4.c:13231)
IOError: Too many open files
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,94328498