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From the course material, it wasn't immediately clear to me when MemTable is acc...
Camoen V
Sep 23, 2022
From the course material, it wasn't immediately clear to me when MemTable is accessed as opposed to when Row Cache is accessed while performing a read operation.
https://docs.datastax.com/en/cassandra-oss/3.x/cassandra/dml/dmlAboutReads.html
It looks like MemTable is checked as the first step. It's then followed by checking RowCache -> in-memory bloom filters -> key cache -> partition summary + partition index.
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Design Gurus3 years ago
That's right. First MemTable and then Row Cache.
The last part of the lesson tried to cover this:
If data is not present in MemTable, we have to look it up in SSTables or other data structures...
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