| = row cache |
| |
| A database component for improving the performance of read-intensive operations. |
| In off-heap memory, the row cache holds the most recently read rows from the local <<SSTable,SSTables>>. |
| Each local read operation stores its result set in the row cache and sends it to the coordinator node. |
| The next read first checks the row cache. |
| If the required data is there, the database returns it immediately. |
| This initial read can save further seeks in the Bloom filter, partition key cache, partition summary, partition index, and SSTables. |
| |
| The database uses LRU (least-recently-used) eviction to ensure that the row cache is refreshed with the most frequently accessed rows. |
| The size of the row cache can be configured in the cassandra.yaml file. |
