Using Elasticsearch 6.3.0, I'm trying to understand the meaning of the following (from /_nodes/stats):
looks like (current?) memory size is ~38mb.
The (total?) cache_size is 1494mb(?) - I assume that it's in mb since the total memory size is 15gb and 10% is the default for query cache size, right?
Anyway, I don't understand how do I have 9.6M miss if the memory_size is so low.
can someone explain what's going on here please?