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Related to MAX-95, added code which makes it possible to change max_slave_connections parameter value during run time of MaxScale. The change will be effective in rwsplit sessions created after the configuration modification and reload. Note that in order to config modification to be effective, the user must connect the debug interface of MaxScale (telnet) and execute 'reload config'.

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In practice, 'reload config' reads config file and updates config parameters of rwsplit router service. In addition to that there is a version number indicating what generation of configuration service holds. When router instance is created (when MaxScale is started) service's config version is copied to router intance. Whenever new client connection (rwsplit session) is started, router instance's config version is checked against that of service's. If versions differ, service's config data is copied to router instance. New session will be started with router instance's config values.
This commit is contained in:
VilhoRaatikka
2014-05-02 16:35:40 +03:00
parent bb7d583155
commit a1361d9c9e
6 changed files with 172 additions and 29 deletions
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server/include/service.h
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@ -116,6 +116,7 @@ typedef struct service {
struct users *users; /**< The user data for this service */
int enable_root; /**< Allow root user access */
CONFIG_PARAMETER* svc_config_param; /*< list of config params and values */
int svc_config_version; /*< Version number of configuration */
SPINLOCK
users_table_spin; /**< The spinlock for users data refresh */
SERVICE_REFRESH_RATE