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Added support for disabling the saving of the session command history for the schemarouter.

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This commit is contained in:
Markus Makela
2015-04-23 19:35:08 +03:00
parent d89dce4372
commit d1551be54f
2 changed files with 64 additions and 10 deletions
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15
server/modules/include/schemarouter.h
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@ -136,6 +136,7 @@ typedef struct mysql_sescmd_st {
GWBUF* my_sescmd_buf; /*< Query buffer */
unsigned char my_sescmd_packet_type;/*< Packet type */
bool my_sescmd_is_replied; /*< Is cmd replied to client */
int position; /*< Position of this command */
#if defined(SS_DEBUG)
skygw_chk_t my_sescmd_chk_tail;
#endif
@ -170,6 +171,7 @@ typedef struct sescmd_cursor_st {
rses_property_t** scmd_cur_ptr_property; /*< address of pointer to owner property */
mysql_sescmd_t* scmd_cur_cmd; /*< pointer to current session command */
bool scmd_cur_active; /*< true if command is being executed */
int position; /*< Position of this cursor */
#if defined(SS_DEBUG)
skygw_chk_t scmd_cur_chk_tail;
#endif
@ -221,6 +223,7 @@ typedef struct backend_ref_st {
DCB* bref_dcb; /*< Backend DCB */
bref_state_t bref_state; /*< State of the backend */
bool bref_mapped; /*< Whether the backend has been mapped */
bool last_sescmd_replied;
int bref_num_result_wait; /*< Number of not yet received results */
sescmd_cursor_t bref_sescmd_cur; /*< Session command cursor */
GWBUF* bref_pending_cmd; /*< For stmt which can't be routed due active sescmd execution */
@ -237,6 +240,7 @@ typedef struct schemarouter_config_st {
int rw_max_slave_conn_count;
target_t rw_use_sql_variables_in;
int max_sescmd_hist;
bool disable_sescmd_hist;
} schemarouter_config_t;
/**
@ -248,6 +252,7 @@ typedef struct {
int longest_sescmd; /*< Longest chain of stored session commands */
int n_hist_exceeded;/*< Number of sessions that exceeded session
* command history limit */
time_t ses_longest; /*< Session start time */
} ROUTER_STATS;
/**
@ -280,7 +285,8 @@ struct router_client_session {
DCB* dcb_route; /*< Internal DCB used to trigger re-routing of buffers */
DCB* dcb_reply; /*< Internal DCB used to send replies to the client */
ROUTER_STATS stats; /*< Statistics for this router */
int n_sescmd;
int n_sescmd;
int pos_generator;
#if defined(SS_DEBUG)
skygw_chk_t rses_chk_tail;
#endif
@ -303,15 +309,10 @@ typedef struct router_instance {
ROUTER_STATS stats; /*< Statistics for this router */
struct router_instance* next; /*< Next router on the list */
bool available_slaves; /*< The router has some slaves available */
//HASHTABLE* dbnames_hash; /** Hashtable containing the database names and where to find them */
//char** ignore_list;
} ROUTER_INSTANCE;
#define BACKEND_TYPE(b) (SERVER_IS_MASTER((b)->backend_server) ? BE_MASTER : \
(SERVER_IS_SLAVE((b)->backend_server) ? BE_SLAVE : BE_UNDEFINED));
#if 0
void* dbnames_hash_init(ROUTER_INSTANCE* inst,BACKEND** backends);
bool update_dbnames_hash(ROUTER_INSTANCE* inst,BACKEND** backends, HASHTABLE* hashtable);
#endif
#endif /*< _SCHEMAROUTER_H */