Oracle::data Dictionary Cache - Red Hat NETWORK 4.0.5 Reference Manual

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Field
Oracle Port*
ORACLE_HOME*
Expected DB Name*
Timeout*
Table C-52. Oracle::Client Connectivity settings
C.9.6. Oracle::Data Dictionary Cache
The Oracle::Data Dictionary Cache probe computes the Data Dictionary Cache Hit Ra-
tio so as to optimize the SHARED_POOL_SIZE in
metrics:
Data Dictionary Hit Ratio — The ratio of cache hits to cache lookup attempts in the data
•
dictionary cache. In other words, the rate at which the database goes to the dictionary
instead of the hard disk to retrieve data. A low ratio suggests more RAM should be added
to the system.
Gets — The number of blocks accessed via single block gets (not through the consistent
•
get mechanism).
Cache Misses — The number of accesses made to the block buffer to retrieve data in a
•
consistent mode.
Field
Oracle SID*
Oracle Username*
Oracle Password*
Oracle Port*
Timeout*
Warning Minimum Data Dictionary Hit Ratio
Critical Minimum Data Dictionary Hit Ratio
Table C-53. Oracle::Data Dictionary Cache settings
Appendix C. Probes
Value
1521
/opt/oracle
30
. It collects the following
init.ora
Value
1521
30