HP Integrity NonStop H-Series Guia do Utilizador descarregar pdf (Página 86)

HP NonStop Shadowbase Command Definitions

Collector Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

KEYEDCACHEDEPTH num

Initial Changed

Version Version Values Default Minimum Maximum Alter

2.300 128 0 disable 512 No

This sets the cache size to be maintained by audit reading for key

sequenced source files/tables. It defaults to 128. The maximum is 512.

Setting to 0 turns parameter off, but requires that the KEYEDONLY

parameter be set to ON (see below).

KEYEDONLY { OFF }

{ ON }

Initial Changed

Version Version Values Default Minimum Maximum Alter

2.300 OFF OFF ON Yes

The keyed file cache is used to track which files are key-sequenced and

which are not. If a file is found in the cache (which means it is a keyed

file), the call to the ARLIB procedure to get the record address is skipped.

If the keyed only parameter is set, all replicated files are treated as key

sequenced, so the call to get the record address is never made. Since, in

that case, the cache is never checked, its size can be set to 0 to save

memory.

If you have no entry-sequenced or relative files (or MP tables) to be

replicated, you should set KEYEDONLY on and KEYEDCACHEDEPTH to

Otherwiese, you should set KEYEDONLY OFF and the

KEYEDCACHEDEPTH to the number of keyed files you are likely to have

active at time. Note that setting it to a number less than the number of

active key squence files will just have a small performance penalty in that

the procedure to get the record address may get called more frequently

than with a larger cache size. KEYEDONLY and KEYCACHEDEPTH

apply only to the AUDCOLL collector object (non-native code 100).

LABELCACHEDEPTH num

Initial Changed

Version Version Values Default Minimum Maximum Alter

1.101 10 1 2000 No

This sets the cache size to be maintained by audit reading for SQL source

tables. It defaults to 10. The minimum value is 1; maximum is 2000.

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HP Integrity NonStop H-Series Guia do Utilizador Página 86