cpp-redis / cpp_redis

Redis Cluster implements all the single key commands available in the non-distributed version of Redis. Commands performing complex multi-key operations like Set type unions or intersections are implemented as well as long as the keys all belong to the same node.

Redis Cluster implements a concept called hash tags that can be used in order to force certain keys to be stored in the same node. However during manual reshardings, multi-key operations may become unavailable for some time while single key operations are always available.

Redis Cluster does not support multiple databases like the stand alone version of Redis. There is just database 0 and the SELECT command is not allowed.

Provide a high performance thread dispatcher for Redis streams following the patterns introduced in the official documention.

WHILE true
    entries = XREADGROUP $GroupName $ConsumerName BLOCK 2000 COUNT 10 STREAMS mystream >
    if entries == nil
        puts "Timeout... try again"
        CONTINUE
    end

    FOREACH entries AS stream_entries
        FOREACH stream_entries as message
            process_message(message.id,message.fields)

            # ACK the message as processed
            XACK mystream $GroupName message.id
        END
    END
END