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MXS-827: Add connection keepalive

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The readwritesplit now sends COM_PING queries to backend servers that have
been idle for too long. The option is configured with the
`connection_keepalive` parameter.
This commit is contained in:
Markus Mäkelä
2017-03-24 05:22:25 +02:00
parent e3bae59e1a
commit 710012ac5d
10 changed files with 125 additions and 14 deletions
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2
server/modules/routing/readwritesplit/readwritesplit.c
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@ -196,6 +196,7 @@ MXS_MODULE *MXS_CREATE_MODULE()
{"max_sescmd_history", MXS_MODULE_PARAM_COUNT, "0"},
{"strict_multi_stmt", MXS_MODULE_PARAM_BOOL, "true"},
{"master_accept_reads", MXS_MODULE_PARAM_BOOL, "false"},
{"connection_keepalive", MXS_MODULE_PARAM_COUNT, "0"},
{MXS_END_MODULE_PARAMS}
}
};
@ -278,6 +279,7 @@ static MXS_ROUTER *createInstance(SERVICE *service, char **options)
router->rwsplit_config.disable_sescmd_history = config_get_bool(params, "disable_sescmd_history");
router->rwsplit_config.max_sescmd_history = config_get_integer(params, "max_sescmd_history");
router->rwsplit_config.master_accept_reads = config_get_bool(params, "master_accept_reads");
router->rwsplit_config.connection_keepalive = config_get_integer(params, "connection_keepalive");
if (!handle_max_slaves(router, config_get_string(params, "max_slave_connections")) ||
(options && !rwsplit_process_router_options(router, options)))