arango.exceptions.CursorNextError: [HTTP 404][ERR 1600] cursor not

[zopyx...@gmail.com]

I have this query against ArangoDB 3.6.5 (Python 3, python-arango 5.4.0):

```

        FOR doc in import

            filter doc._type == 'Plone Site' || doc._type == 'Folder'

            limit 10000000

            RETURN  {path: doc._path, position: doc._gopip}

``` 

This returns about 12.000 documents.

After some time I get this error:

```

  File "/home/ajung/sandboxes/ugent-portaal-plone-4x/src/ugent.plone5migration/src/ugent/plone5migration/migration/fix_object_ordering.py", line 51, in main

    for i, r in enumerate(result):

  File "/home/ajung/sandboxes/ugent-portaal-plone-4x/eggs/python_arango-5.4.0-py3.8.egg/arango/cursor.py", line 61, in __next__

    return self.next()

  File "/home/ajung/sandboxes/ugent-portaal-plone-4x/eggs/python_arango-5.4.0-py3.8.egg/arango/cursor.py", line 229, in next

    self.fetch()

  File "/home/ajung/sandboxes/ugent-portaal-plone-4x/eggs/python_arango-5.4.0-py3.8.egg/arango/cursor.py", line 265, in fetch

    raise CursorNextError(resp, request)

arango.exceptions.CursorNextError: [HTTP 404][ERR 1600] cursor not found

 ```

Is this related to the Python driver or ArangoDB itself?

[zopyx...@gmail.com]

The issue seems to happen randomly after processing a multiple of 1000 documents, sometimes after 1000 docs, sometimes after 3000 documents.

[Wilfried Gösgens]

Hi,

you probably need to give the cursor a longer lifetime, else it will expire, hence "cursor not found".

https://www.arangodb.com/docs/stable/http/aql-query-cursor-accessing-cursors.html - the 'ttl' parameter.

Cheers, Willi

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