Asynchronous Parser, ASCII Packing, and Direct Command Replication

Obtain improvements throughout the replication process during data transformation and transport by utilizing the asynchronous parser, ASCII packing, and inbound and outbound direct command replication features together.

With Replication Server 15.7, you can use direct replication for inbound commands to reduce command transformation and I/O in the inbound replication path between the Replication Server EXEC and DIST modules.

With Replication Server 15.7.1, the asynchronous parser and outbound direct command replication features improve replication performance between Replication Agent and the Executor thread and between the DIST and DSI modules, while ASCII packing reduces reduces stable queue storage consumption.

Use:

Asynchronous parser – to reduce the time Replication Agent waits for the Executor by configuring additional Executor threads to parse commands from Replication Agent
ASCII Packing – with the asynchronous parser to reduce the stable queue storage space consumed by packed commands in the inbound queue
Direct replication for inbound commands – to reduce command transformation and I/O in the inbound replication path between the Replication Server EXEC and DIST modules
Direct replication for outbound commands – to reduce command transformation and I/O in the outbound replication path between the Replication Server DIST and DSI modules

You can gain maximum performance improvements and reduction in queue storage consumption by using all of these features together. Instead of configuring each of the features separately, use async_parser with alter connection to configure them at the same time with their default values. You can also set async_parser on and then set the individual parameters independently to fine tune and balance performance and resource consumption.

See Replication Server Administration Guide Volume 2 > Performance Tuning > Suggestions for Using Tuning Parameters > Asynchronous Parser, ASCII Packing, and Direct Command Replication.