Django keeps data in cache with mem_opt = True

[RicCapUnitn]

When mem_opt is set to False Django (or MongoDD??) store the last query in cache; this memory is not necessary (at least if you do not want to run the extraction several times in a row); We should clear this cache and restrict data extraction to a maximum number of times to avoid performance issues and memory overflow.

[ricCap]

Actually this is not a problem and the query_mem_opt = False runs faster

[ricCap]

Cache is freed automatically by the system when requested. If the system has enough memory to cache query results it does, leaving at least 1GB of RAM always untouched.