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Add delayed query retry prototype

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This is a proof-of-concept that validates the query retrying method. The
actual implementation of the query retrying mechanism needs more thought
as using the housekeeper is not very efficient.
This commit is contained in:
Markus Mäkelä
2018-04-01 13:27:30 +03:00
parent e76b00e340
commit 761fda2806
7 changed files with 140 additions and 4 deletions
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8
server/modules/routing/readwritesplit/readwritesplit.hh
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@ -173,7 +173,9 @@ struct Config
max_slave_connections(0),
enable_causal_read(config_get_bool(params, "enable_causal_read")),
causal_read_timeout(config_get_string(params, "causal_read_timeout")),
master_reconnection(config_get_bool(params, "master_reconnection"))
master_reconnection(config_get_bool(params, "master_reconnection")),
query_retry_timeout(config_get_integer(params, "query_retry_timeout")),
query_retry_interval(config_get_integer(params, "query_retry_interval"))
{
if (enable_causal_read)
{
@ -199,8 +201,10 @@ struct Config
* each connection*/
int max_slave_connections; /**< Maximum number of slaves for each connection*/
bool enable_causal_read; /**< Enable causual read */
std::string causal_read_timeout; /**< Timetout, second parameter of function master_wait_gtid */
std::string causal_read_timeout; /**< Timeout, second parameter of function master_wait_gtid */
bool master_reconnection; /**< Allow changes in master server */
uint64_t query_retry_timeout; /**< Time window in which a query can be retried */
uint64_t query_retry_interval; /**< Time window in which a query can be retried */
};
/**