Adjusting polling bandwidth
You can configure how much data is transferred by the Polling
engine, ncp_poller, and how often. You might want to adjust polling
bandwidth to avoid network congestion or to reduce the impact of large
numbers of polling events occurring simultaneously.
Configuring how many events the poller reads
Large increases in the number of network events can slow down the polling process, ncp_poller. To minimize the performance impact of sudden increases in events, you can define how many network events the poller reads.
Changing the interval for checking poll policy membership size
You can change the interval for checking poll policy membership size for all poll policies.
Enabling and disabling network view updates for poll policies
By default network view updates are enabled for all poll policies. You can disable network view updates if you are polling stable network views. This will avoid any performance issues associated with the update.
Adjusting the size of poll data queues
Database problems or heavy polling loads can cause pollers to run out of memory if the queue of poll data for writing to the NCPOLLDATA database becomes too large. To monitor and avoid this problem, you can set a limit on the size of the queue. The limit is defined as the number of batches. If the limit is exceeded, you are alerted in the log and in the Event Viewer . Then, the poller reduces the queue size by discarding the queued data. The discarded data is written to another file.