KeyStore

Phase 1

• Implement Write Ahead Logging with a Persistance Manager using in memory data structure unordered_map

Phase 2

• Add Memtable class which uses map upto a certain number of entries
• Add SSTableWriter class that takes the entries from the memtable and writes them in a SSTable txt file
• Add SSTableReader class which searches for the latest value for a key
• Manages reads and writes and keeps track of the sstables created
• Add Bloomfilters to prevent reading from SSTable files where the required key may not exist.
• Add key indexing with file offsets to binary search for the key in a file

Phase 3

• Add a background thread to write SSTable files

Phase 4 (In Progress)

• Use memory mapped files and add caching

Benchmarking Results (Until Phase 3)