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res_odbc: cache_size option to limit the cached connections.

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Signed-off-by: Jaco Kroon <jaco@uls.co.za>

UserNote: New cache_size option for res_odbc to on a per class basis limit the
number of cached connections. Please reference the sample configuration
for details.
This commit is contained in:
Jaco Kroon
2024-12-13 00:35:55 +02:00
parent c684603d72
commit c8ab8be1ca
2 changed files with 54 additions and 0 deletions
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12
configs/samples/res_odbc.conf.sample
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@@ -97,6 +97,18 @@ pre-connect => yes
; The default remains a stack to be backwards compatible, setting this value to
; any of rr, roundrobin or queue will result in a round-robin queue being used.
;cache_type => roundrobin
;
; Limit the number of connections to cache. This is separate from
; max_connections which is the total number of connections that open, whereas
; this value specifies how many idle connections will be stored in the connection
; cache. On extremely spiky loads this could be useful to limit the overall
; number of connections that's kept open when the spike comes down. The default
; is to not limit the cache size (thus effectively limit to max_connections).
; When a returned connection would result in the cache size being exceeded, the
; longest idle connection in the cache shall be dropped.
; Setting this to zero will effectively disable the connection cache, setting to -1
; will set this to "infinite" (default).
;cache_size => 10
[mysql2]
enabled => no