Config connections
Control connections at server-side
Limit server-side accept to no more than 10 connections
<dubbo:provider protocol="dubbo" accepts="10" />
OR
<dubbo:protocol name="dubbo" accepts="10" />
Control connections at client-side
Limit client-side creating connection to no more than 10 connections for interface com.foo.BarService.
<dubbo:reference interface="com.foo.BarService" connections="10" />
OR
<dubbo:service interface="com.foo.BarService" connections="10" />
Warning
If used default protocol(dubbo protocol), and the value of connections attribute is great than 0,then each service reference will has itself connection,else all service which belong to same remote server will share only one connection. In this framework,we called private connection or share connection.
If <dubbo:service> and <dubbo:reference> are both configured accepts/connections,<dubbo:reference> is preferred, refer to Configuration coverage strategy.
Because connection is connect on Server, so configure on provider side.
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