v.21.10New Features
Added ExecutablePool Storage Engine for Long Running Processes
AddedExecutablePoolstorage engine. Similar toExecutablebut it's using a pool of long running processes. #28518 (Maksim Kita).
Why it matters
TheExecutablePool storage engine improves performance and resource utilization by maintaining a pool of persistent external executables, reducing the overhead of repeatedly starting and stopping processes for each query execution.How to use it
Users can enable theExecutablePool storage engine by creating a table with the ENGINE set to ExecutablePool and configuring the parameters to specify the executable and its arguments, similar to the Executable engine, but benefiting from the process pool management for better efficiency.