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Resettable |
No |
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Event Type Connection |
Logical Data Grouping conn_event |
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API Element Name Element Type |
rej_curs_blk counter |
Description: The number of times that a request for an I/O block at server was rejected and the request was converted to non-blocked I/O.
Usage: If there are many cursors blocking data, the communication heap may become full. When this heap is full, an error is not returned. Instead, no more I/O blocks are allocated for blocking cursors. If cursors are unable to block data, performance can be affected.
If a large number of cursors were unable to perform data blocking, you may be able to improve performance by: