Dask is crashing: ImportError: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.29' not found

Hi @raslekar

I haven’t been able to reproduce your issue exactly (using conda/analysis3-26.01), but as a general tip you should use threads_per_worker=1 when opening netcdf data in parallel:

- cluster = LocalCluster(
-     n_workers=7,
-     threads_per_worker=4
- )
+ cluster = LocalCluster(threads_per_worker=1)

See here for details.

If you’re still having issues after changing this, could you please provide the exact version of the conda/analysis3 environment you are using? You can find it in the top right corner of the notebook:
Screenshot 2026-01-21 at 8.57.26 am