issue_comments: 870152019

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https://github.com/pydata/xarray/issues/4591#issuecomment-870152019 https://api.github.com/repos/pydata/xarray/issues/4591 870152019 MDEyOklzc3VlQ29tbWVudDg3MDE1MjAxOQ== 463809 2021-06-29T01:10:30Z 2021-06-29T01:14:58Z CONTRIBUTOR

This issue appears to be back in some form, with engine=zarr.

The code looks like this, using fsspec's mapper API to access Azure blob store: fs = fsspec.filesystem("az://...") ds = xr.open_dataset(fs.get_mapper(path), engine="zarr", chunks="auto"): ...

I have not tracked down a self-contained reproducer, as it only fails for one call but not others of a similar form. Reporting it while I dig into it further, in case you have any suggestions.

[2021-06-29 00:44:47] [2021-06-29 00:44:47 core.py:74 CRITICAL] Failed to Serialize [2021-06-29 00:44:47] Traceback (most recent call last): [2021-06-29 00:44:47] File "/deps/envs/deps/lib/python3.7/site-packages/distributed/protocol/core.py", line 70, in dumps [2021-06-29 00:44:47] frames[0] = msgpack.dumps(msg, default=_encode_default, use_bin_type=True) [2021-06-29 00:44:47] File "/deps/envs/deps/lib/python3.7/site-packages/msgpack/__init__.py", line 35, in packb [2021-06-29 00:44:47] return Packer(**kwargs).pack(o) [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 286, in msgpack._cmsgpack.Packer.pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 292, in msgpack._cmsgpack.Packer.pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 289, in msgpack._cmsgpack.Packer.pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 258, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 225, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 225, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 258, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 225, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 225, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 225, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "msgpack/_packer.pyx", line 279, in msgpack._cmsgpack.Packer._pack [2021-06-29 00:44:47] File "/deps/envs/deps/lib/python3.7/site-packages/distributed/protocol/core.py", line 56, in _encode_default [2021-06-29 00:44:47] obj, serializers=serializers, on_error=on_error, context=context [2021-06-29 00:44:47] File "/deps/envs/deps/lib/python3.7/site-packages/distributed/protocol/serialize.py", line 422, in serialize_and_split [2021-06-29 00:44:47] header, frames = serialize(x, serializers, on_error, context) [2021-06-29 00:44:47] File "/deps/envs/deps/lib/python3.7/site-packages/distributed/protocol/serialize.py", line 256, in serialize [2021-06-29 00:44:47] iterate_collection=True, [2021-06-29 00:44:47] File "/deps/envs/deps/lib/python3.7/site-packages/distributed/protocol/serialize.py", line 348, in serialize [2021-06-29 00:44:47] raise TypeError(msg, str(x)[:10000]) [2021-06-29 00:44:47] TypeError: ('Could not serialize object of type ImplicitToExplicitIndexingAdapter.', 'ImplicitToExplicitIndexingAdapter(array=CopyOnWriteArray(array=LazilyIndexedArray(array=<xarray.backends.zarr.ZarrArrayWrapper object at 0x7f52dedbb690>, key=BasicIndexer((slice(None, None, None), slice(None, None, None))))))') [2021-06-29 00:44:47] [2021-06-29 00:44:47 utils.py:37 ERROR] ('Could not serialize object of type ImplicitToExplicitIndexingAdapter.', 'ImplicitToExplicitIndexingAdapter(array=CopyOnWriteArray(array=LazilyIndexedArray(array=<xarray.backends.zarr.ZarrArrayWrapper object at 0x7f52dedbb690>, key=BasicIndexer((slice(None, None, None), slice(None, None, None))))))')

pip list | grep 'dask\|distributed\|xarray\|zarr\|msgpack\|adlfs' adlfs 0.7.7 dask 2021.6.2 distributed 2021.6.2 msgpack 1.0.0 xarray 0.18.2 zarr 2.8.3

 
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