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proxysql
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2nd drafting tracking of various variables

Browse Source
pull/2243/head
René Cannaò 7 years ago
parent 91f518d61a
commit a1f39bf784
4 changed files with 195 additions and 0 deletions
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3
include/MySQL_Session.h
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@ -114,6 +114,9 @@ class MySQL_Session
bool handler_again___verify_backend_sql_log_bin();
bool handler_again___verify_backend_sql_mode();
bool handler_again___verify_backend_time_zone();
bool handler_again___verify_backend_isolation_level();
bool handler_again___verify_backend_character_set_results();
bool handler_again___verify_backend_session_track_gtids();
bool handler_again___status_SETTING_INIT_CONNECT(int *);
bool handler_again___status_SETTING_LDAP_USER_VARIABLE(int *);
bool handler_again___status_SETTING_SQL_LOG_BIN(int *);

3
include/proxysql_structs.h
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@ -152,6 +152,9 @@ enum session_status {
SETTING_SQL_LOG_BIN,
SETTING_SQL_MODE,
SETTING_TIME_ZONE,
SETTING_ISOLATION_LEVEL,
SETTING_CHARACTER_SET_RESULTS,
SETTING_SESSION_TRACK_GTIDS,
FAST_FORWARD,
PROCESSING_STMT_PREPARE,
PROCESSING_STMT_EXECUTE,

128
lib/MySQL_Session.cpp
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@ -1649,6 +1649,134 @@ bool MySQL_Session::handler_again___verify_backend_time_zone() {
return false;
}
bool MySQL_Session::handler_again___verify_backend_isolation_level() {
if (mybe->server_myds->myconn->options.isolation_level_int==0) {
// it is the first time we use this backend. Set isolation_level to default
if (mybe->server_myds->myconn->options.isolation_level) {
free(mybe->server_myds->myconn->options.isolation_level);
mybe->server_myds->myconn->options.isolation_level=NULL;
}
mybe->server_myds->myconn->options.isolation_level=strdup(mysql_thread___default_isolation_level);
uint32_t isolation_level_int=SpookyHash::Hash32(mybe->server_myds->myconn->options.isolation_level,strlen(mybe->server_myds->myconn->options.isolation_level),10);
mybe->server_myds->myconn->options.isolation_level_int=isolation_level_int;
}
if (client_myds->myconn->options.isolation_level_int) {
if (client_myds->myconn->options.isolation_level_int != mybe->server_myds->myconn->options.isolation_level_int) {
{
mybe->server_myds->myconn->options.isolation_level_int = client_myds->myconn->options.isolation_level_int;
if (mybe->server_myds->myconn->options.isolation_level) {
free(mybe->server_myds->myconn->options.isolation_level);
mybe->server_myds->myconn->options.isolation_level=NULL;
if (client_myds->myconn->options.isolation_level) {
mybe->server_myds->myconn->options.isolation_level=strdup(client_myds->myconn->options.isolation_level);
}
}
}
switch(status) { // this switch can be replaced with a simple previous_status.push(status), but it is here for readibility
case PROCESSING_QUERY:
previous_status.push(PROCESSING_QUERY);
break;
case PROCESSING_STMT_PREPARE:
previous_status.push(PROCESSING_STMT_PREPARE);
break;
case PROCESSING_STMT_EXECUTE:
previous_status.push(PROCESSING_STMT_EXECUTE);
break;
default:
assert(0);
break;
}
NEXT_IMMEDIATE_NEW(SETTING_ISOLATION_LEVEL);
}
}
return false;
}
bool MySQL_Session::handler_again___verify_backend_character_set_results() {
if (mybe->server_myds->myconn->options.character_set_results_int==0) {
// it is the first time we use this backend. Set character_set_results to default
if (mybe->server_myds->myconn->options.character_set_results) {
free(mybe->server_myds->myconn->options.character_set_results);
mybe->server_myds->myconn->options.character_set_results=NULL;
}
mybe->server_myds->myconn->options.character_set_results=strdup(mysql_thread___default_character_set_results);
uint32_t character_set_results_int=SpookyHash::Hash32(mybe->server_myds->myconn->options.character_set_results,strlen(mybe->server_myds->myconn->options.character_set_results),10);
mybe->server_myds->myconn->options.character_set_results_int=character_set_results_int;
}
if (client_myds->myconn->options.character_set_results_int) {
if (client_myds->myconn->options.character_set_results_int != mybe->server_myds->myconn->options.character_set_results_int) {
{
mybe->server_myds->myconn->options.character_set_results_int = client_myds->myconn->options.character_set_results_int;
if (mybe->server_myds->myconn->options.character_set_results) {
free(mybe->server_myds->myconn->options.character_set_results);
mybe->server_myds->myconn->options.character_set_results=NULL;
if (client_myds->myconn->options.character_set_results) {
mybe->server_myds->myconn->options.character_set_results=strdup(client_myds->myconn->options.character_set_results);
}
}
}
switch(status) { // this switch can be replaced with a simple previous_status.push(status), but it is here for readibility
case PROCESSING_QUERY:
previous_status.push(PROCESSING_QUERY);
break;
case PROCESSING_STMT_PREPARE:
previous_status.push(PROCESSING_STMT_PREPARE);
break;
case PROCESSING_STMT_EXECUTE:
previous_status.push(PROCESSING_STMT_EXECUTE);
break;
default:
assert(0);
break;
}
NEXT_IMMEDIATE_NEW(SETTING_CHARACTER_SET_RESULTS);
}
}
return false;
}
bool MySQL_Session::handler_again___verify_backend_session_track_gtids() {
if (mybe->server_myds->myconn->options.session_track_gtids_int==0) {
// it is the first time we use this backend. Set session_track_gtids to default
if (mybe->server_myds->myconn->options.session_track_gtids) {
free(mybe->server_myds->myconn->options.session_track_gtids);
mybe->server_myds->myconn->options.session_track_gtids=NULL;
}
mybe->server_myds->myconn->options.session_track_gtids=strdup(mysql_thread___default_session_track_gtids);
uint32_t session_track_gtids_int=SpookyHash::Hash32(mybe->server_myds->myconn->options.session_track_gtids,strlen(mybe->server_myds->myconn->options.session_track_gtids),10);
mybe->server_myds->myconn->options.session_track_gtids_int=session_track_gtids_int;
}
if (client_myds->myconn->options.session_track_gtids_int) {
if (client_myds->myconn->options.session_track_gtids_int != mybe->server_myds->myconn->options.session_track_gtids_int) {
{
mybe->server_myds->myconn->options.session_track_gtids_int = client_myds->myconn->options.session_track_gtids_int;
if (mybe->server_myds->myconn->options.session_track_gtids) {
free(mybe->server_myds->myconn->options.session_track_gtids);
mybe->server_myds->myconn->options.session_track_gtids=NULL;
if (client_myds->myconn->options.session_track_gtids) {
mybe->server_myds->myconn->options.session_track_gtids=strdup(client_myds->myconn->options.session_track_gtids);
}
}
}
switch(status) { // this switch can be replaced with a simple previous_status.push(status), but it is here for readibility
case PROCESSING_QUERY:
previous_status.push(PROCESSING_QUERY);
break;
case PROCESSING_STMT_PREPARE:
previous_status.push(PROCESSING_STMT_PREPARE);
break;
case PROCESSING_STMT_EXECUTE:
previous_status.push(PROCESSING_STMT_EXECUTE);
break;
default:
assert(0);
break;
}
NEXT_IMMEDIATE_NEW(SETTING_SESSION_TRACK_GTIDS);
}
}
return false;
}
bool MySQL_Session::handler_again___verify_init_connect() {
if (mybe->server_myds->myconn->options.init_connect_sent==false) {

61
lib/MySQL_Thread.cpp
Unescape View File

@ -2146,6 +2146,45 @@ bool MySQL_Threads_Handler::set_variable(char *name, char *value) { // this is t
return true;
}
if (!strcasecmp(name,"default_isolation_level")) {
if (variables.default_isolation_level) free(variables.default_isolation_level);
variables.default_isolation_level=NULL;
if (vallen) {
if (strcmp(value,"(null)"))
variables.default_isolation_level=strdup(value);
}
if (variables.default_isolation_level==NULL) {
variables.default_isolation_level=strdup((char *)MYSQL_DEFAULT_ISOLATION_LEVEL); // default
}
return true;
}
if (!strcasecmp(name,"default_character_set_results")) {
if (variables.default_character_set_results) free(variables.default_character_set_results);
variables.default_character_set_results=NULL;
if (vallen) {
if (strcmp(value,"(null)"))
variables.default_character_set_results=strdup(value);
}
if (variables.default_character_set_results==NULL) {
variables.default_character_set_results=strdup((char *)MYSQL_DEFAULT_CHARACTER_SET_RESULTS); // default
}
return true;
}
if (!strcasecmp(name,"default_session_track_gtids")) {
if (variables.default_session_track_gtids) free(variables.default_session_track_gtids);
variables.default_session_track_gtids=NULL;
if (vallen) {
if (strcmp(value,"(null)"))
variables.default_session_track_gtids=strdup(value);
}
if (variables.default_session_track_gtids==NULL) {
variables.default_session_track_gtids=strdup((char *)MYSQL_DEFAULT_SESSION_TRACK_GTIDS); // default
}
return true;
}
if (!strcasecmp(name,"keep_multiplexing_variables")) {
if (vallen) {
free(variables.keep_multiplexing_variables);
@ -2935,6 +2974,28 @@ MySQL_Session * MySQL_Thread::create_new_session_and_client_data_stream(int _fd)
free(sess->client_myds->myconn->options.time_zone);
}
sess->client_myds->myconn->options.time_zone=strdup(mysql_thread___default_time_zone);
uint32_t isolation_level_int=SpookyHash::Hash32(mysql_thread___default_isolation_level,strlen(mysql_thread___default_isolation_level),10);
sess->client_myds->myconn->options.isolation_level_int = isolation_level_int;
if (sess->client_myds->myconn->options.isolation_level) {
free(sess->client_myds->myconn->options.isolation_level);
}
sess->client_myds->myconn->options.isolation_level=strdup(mysql_thread___default_isolation_level);
uint32_t character_set_results_int=SpookyHash::Hash32(mysql_thread___default_character_set_results,strlen(mysql_thread___default_character_set_results),10);
sess->client_myds->myconn->options.character_set_results_int = character_set_results_int;
if (sess->client_myds->myconn->options.character_set_results) {
free(sess->client_myds->myconn->options.character_set_results);
}
sess->client_myds->myconn->options.character_set_results=strdup(mysql_thread___default_character_set_results);
uint32_t session_track_gtids_int=SpookyHash::Hash32(mysql_thread___default_session_track_gtids,strlen(mysql_thread___default_session_track_gtids),10);
sess->client_myds->myconn->options.session_track_gtids_int = session_track_gtids_int;
if (sess->client_myds->myconn->options.session_track_gtids) {
free(sess->client_myds->myconn->options.session_track_gtids);
}
sess->client_myds->myconn->options.session_track_gtids=strdup(mysql_thread___default_session_track_gtids);
return sess;
}

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