issue_comments: 363273602

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https://github.com/pydata/xarray/pull/1793#issuecomment-363273602 https://api.github.com/repos/pydata/xarray/issues/1793 363273602 MDEyOklzc3VlQ29tbWVudDM2MzI3MzYwMg== 2443309 2018-02-06T00:57:05Z 2018-02-06T00:57:05Z MEMBER

I think we're getting close. We're currently failing during the sync step and I'm hypothesizing that it is due to the file not being closed after the setup steps. That said, I wasn't able to pinpoint why/where we're missing a close. I think this traceback is pretty informative:

Traceback (most recent call last): File "/Users/jhamman/anaconda/envs/xarray36/lib/python3.6/site-packages/distributed/worker.py", line 1255, in add_task self.tasks[key] = _deserialize(function, args, kwargs, task) File "/Users/jhamman/anaconda/envs/xarray36/lib/python3.6/site-packages/distributed/worker.py", line 641, in _deserialize args = pickle.loads(args) File "/Users/jhamman/anaconda/envs/xarray36/lib/python3.6/site-packages/distributed/protocol/pickle.py", line 59, in loads return pickle.loads(x) File "/Users/jhamman/Dropbox/src/xarray/xarray/backends/common.py", line 445, in __setstate__ self.ds = self._opener(mode=self._mode) File "/Users/jhamman/Dropbox/src/xarray/xarray/backends/netCDF4_.py", line 204, in _open_netcdf4_group ds = nc4.Dataset(filename, mode=mode, **kwargs) File "netCDF4/_netCDF4.pyx", line 2015, in netCDF4._netCDF4.Dataset.__init__ File "netCDF4/_netCDF4.pyx", line 1636, in netCDF4._netCDF4._ensure_nc_success OSError: [Errno -101] NetCDF: HDF error: b'/var/folders/v0/qnh7jvgx5gnglpxfztxdlhk00000gn/T/tmpn_mo662_/temp-0.nc' distributed.scheduler - ERROR - error from worker tcp://127.0.0.1:63248: [Errno -101] NetCDF: HDF error: b'/var/folders/v0/qnh7jvgx5gnglpxfztxdlhk00000gn/T/tmpn_mo662_/temp-0.nc' HDF5-DIAG: Error detected in HDF5 (1.10.1) thread 140736093991744: #000: H5F.c line 586 in H5Fopen(): unable to open file major: File accessibilty minor: Unable to open file #001: H5Fint.c line 1305 in H5F_open(): unable to lock the file major: File accessibilty minor: Unable to open file #002: H5FD.c line 1839 in H5FD_lock(): driver lock request failed major: Virtual File Layer minor: Can't update object #003: H5FDsec2.c line 940 in H5FD_sec2_lock(): unable to lock file, errno = 35, error message = 'Resource temporarily unavailable' major: File accessibilty minor: Bad file ID accessed

 
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