Threading Tuning

Given below are a list of tuning parameters related to threading:

Parameter	`<flusherPoolSize>`
Description	This is the thread pool size which will be used by the Sender Task to send messages asynchronously to the subscriber for Queue Messages. You will have to consider the value of the `<messageBatchSizeForSubscribers>` parameter and the number of local queue subscriptions for the node when configuring this pool size.
Example	<flusherPoolSize>10</flusherPoolSize>

Parameter	<internalSequentialThreadPoolSize>
Description	When message content and metadata is written to Cassandra storage, those jobs are submitted to a thread pool. This configuration is for setting the size for that thread pool. If TPS of incoming messages are high, consider increasing this thread pool size for fast acceptance of incoming messages to be written to Cassandra storage.
Example	<internalSequentialThreadPoolSize>5</internalSequentialThreadPoolSize>

Parameter	<andesInternalParallelThreadPoolSize>
Description	This is the thread pool size which will be used by the Andes core to schedule its internal parallel tasks such as acknowledgement handling and message content writing. Consider increasing for fast message handling in general.
Example	<andesInternalParallelThreadPoolSize>50</andesInternalParallelThreadPoolSize>

Parameter	<publisherPoolSize>
Description	Both queue messages and topic messages are scheduled to be delivered to local subscriptions of the node using a thread pool of this size. So if there are a lot of subscribers or a lot of messages to be delivered at a given instance, consider increasing this value.
Example	<publisherPoolSize>50</publisherPoolSize>