LOGICAL DATA MODELING To start with Cassandra data modeling, we are ready to begin designing Cassandra tables. From the conceptual model we must create a logical model containing a table for each query, capturing entities and relationships. Then identify the primary entity type for which… Read More
RULES FOR DATA MODELLING IN CASSANDRA: Cassandra is a query language which is resembles with SQL, but the modulation of data is completely different when compared with other data types. In Cassandra, a worst model of data can lower the performance, especially when the data… Read More
DATA MODELING IN CASSANDRA: Data modeling is the process of identifying entities and their relationships. In relational databases, data is placed in normalized tables with foreign keys used to reference related data in other tables. Queries that the application will make are driven by the… Read More
READ OPERATIONS IN CASSANDRA In Cassandra read operation performs through different stages to find the data starting from MEMTABLE (RAM) to the end of the data present in SS TABLES(DISK) COMPONENTS USED TO PASS THE READ QUERY: ▪️ Memtable ▪️ Row cache ▪️ Key cache ▪️… Read More
WRITE PATHS IN CASSANDRA: TERMINOLOGY OF APACHE CASSANDRA: 👉 Gossips 👉 Partitioners 👉 Snitchers 👉 SSTables 👉 Tombstones 👉 Compactions Cassandra uses murmur3 partitioners and murmur3 algorithms to create Tokens. Cassandra Data Write Path: How Data Is Written: Data is processed by Cassandra at multiple points along… Read More
The Cap Theorem: The CAP theorem is also called Brewer’s Theorem, because it was first advanced by Professor Eric A. Brewer during a talk, he gave on distributed computing in 2000. It is a technique that system designers use to help them understand the trade-offs… Read More
