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43367f94f1
Support for connection reuse during server checks was implemented recently. This is activated with the server keyword check-reuse-pool. Similarly to stream processing via connect_backend(), a connection hash is calculated when trying to perform reuse for checks. This is necessary to retrieve for a connection which shares the check connect parameters. However, idle connections can additionnally be tagged using a pool-conn-name or SNI under connect_backend(). Check reuse does not test these values, which prevent to retrieve a matching connection. Improve this by using "check-sni" value as idle connection hash input for check reuse. be_calculate_conn_hash() API has been adjusted so that name value can be passed as input, both when using streams or checks. Even with the current patch, there is still some scenarii which could not be covered for checks connection reuse. most notably, when using dynamic pool-conn-name/SNI value. It is however at least sufficient to cover simpler cases.