In v30, we introduced the SDM_BLOCKS_TASK_POLL_INTERVAL ".env" file variable, which gives you more control over your instance's task-polling intervals and, in turn, your overall submission throughput.
In a flow, each block includes multiple tasks. The SDM_BLOCKS_TASK_POLL_INTERVAL variable determines how often the system polls for these tasks. The value you enter is the number of seconds that pass between polling attempts. This value should be an integer greater than or equal to 1.
SDM_BLOCKS_TASK_POLL_INTERVAL=
<number_of_seconds_between_block-task_polling_attempts> In TVE environments, the default value is 1.
In Production environments, the default value is 10.
In general, the fewer submissions you expect to process in an environment, and the fewer VMs an environment has, the lower the value should be. This recommendation is based on the overall task-polling behavior of the system.
The system automatically polls for tasks after a task is completed, regardless of the value of SDM_BLOCKS_TASK_POLL_INTERVAL. Therefore, in environments that process a high volume of submissions—and have a continuous backlog of tasks—a higher value does not impact the speed at which the system processes submissions. In contrast, environments that process a small number of submissions complete tasks less frequently. In these environments, the system has a limited backlog of tasks to draw from, and a higher SDM_BLOCKS_TASK_POLL_INTERVAL value can cause delays in processing.