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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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include/maxscale/protocol/mysql.h
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@ -305,7 +305,7 @@ typedef struct
uint32_t extra_capabilities; /*< MariaDB 10.2 capabilities */
unsigned long tid; /*< MySQL Thread ID, in handshake */
unsigned int charset; /*< MySQL character set at connect time */
bool ignore_reply; /*< If the reply should be discarded */
int ignore_replies; /*< How many replies should be discarded */
GWBUF* stored_query; /*< Temporarily stored queries */
#if defined(SS_DEBUG)
skygw_chk_t protocol_chk_tail;