Problems with data import

[odscjames]

Problems were seen with this. The worker had the following Python error repeated:

   File "/home/iatidatastoreclassic/iatidatastoreclassic/iati_datastore/iatilib/crawler.py", line 303, in update_dataset
     resource = fetch_resource(dataset, ignore_hashes)
   File "/home/iatidatastoreclassic/iatidatastoreclassic/iati_datastore/iatilib/crawler.py", line 117, in fetch_resource
     content = d.raw_xml
   File "/home/iatidatastoreclassic/iatidatastoreclassic/.ve/lib/python3.8/site-packages/iatikit/data/dataset.py", line 68, in raw_xml
     with open(self.data_path, 'rb') as handler:
   TypeError: expected str, bytes or os.PathLike object, not NoneType

#353 should provide an immediate fix, but making this issue to make work visible and get to the bottom of this.

[odscjames]

One issue that came up is that the above error was not seen in Sentry. I'm not sure why; sentry is set up for the CLI (just verified). At first I thought it was RQ catching the error and putting it in it's own logs, so sentry doesn't get a chance to see it. Sentry does have RQ integrations that we may have needed - https://docs.sentry.io/platforms/python/guides/rq/ But I tried locally and an error in a task does get reported to sentry without that integration, so I'm not sure what is happening.

[odscjames]

Fixed an issue in server monitoring so we get alerts on unhealthy status in future.