Queries Generating High "Cell Single Block Physical Read" Wait Messages

(Doc ID 2119510.1)

Last updated on APRIL 02, 2018

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


Symptoms of this issue will appear as follows:

Event Waits      Total Wait Time (sec)      Wait Avg(ms)      % DB time      Wait Class
cell single block physical read               19,654,319 4847,1 0 9.7 User I/O


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