Hello everybody, I am trying to determine if mongodb is a good storage mechanism for our existing geoserver instance. Unfortunately, I run into trouble with the geotools mongodb plugin. The list with troubles I have for now, major to minor:
* I can't get Filtering to work. e.g. I add cql_filter=datatype%3D'C' which adds a filter on an attribute datatype='C'. Depending on the attribute, I get the whole mongodb collection or nothing. I debugged it to a function splitFilter that basically just throws my filter away. Issue GEOT-5911 has the same conclusions as I have and a partial fix, but it seems dead. * After reading https://github.com/geotools/geotools/blob/main/modules/plugin/mongodb/src/main/java/org/geotools/data/mongodb/AbstractFilterToMongo.java , I have the impression filtering on dates/times is either not implemented (throw new UnsupportedOperationException() ) or done by geoserver instead of mongo (costing me the mongodb indexes). Can't test this because of the issue above so I might be wrong here. * We have a few geoserver layers that basically act as API/datacontainers, without a geospatial index. Users can use their existing tooling and geoserver to request some non-geographic data. The mongodb plugin seems to require a geo index and makes this use case impossible unless I add a dummy index. * The mongodb password needs to be hardcoded in the URL. This means geoserver can't hide/encrypt it. It is readable for everyone who can see the datastore. * MongoDB is schemaless, but it seems geoserver needs 2 schema definitions: 1 defining the attributes for layers, a 2nd specific for mongodb cached on disk and invisible if you don' know about its existence. If an attribute is added to mongodb, we'll need to delete/adapt the second, and restart the geoserver. * If something is misconfigured, I rarely get a useful error message. I've got some Nullpointer exceptions and must read the code to find out what went wrong. Now I am a junior user in this technology, so I hope someone on this list will tell me that I'm holding it wrong and point me to correct usage. Thanks in advance, Hans
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