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Cleaned up the usage of the connector library

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The monitor permission checks didn't use the standard connection timeouts but
used hard-coded values. The config.c tried to connect to the embedded library
but since it is not used by it anymore, it always fails.
This commit is contained in:
Markus Makela
2016-03-02 12:57:50 +02:00
parent 9bfef5c7c1
commit 2a35312022
3 changed files with 117 additions and 120 deletions
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86
server/core/monitor.c
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@ -522,24 +522,25 @@ bool check_monitor_permissions(MONITOR* monitor)
{
MYSQL* mysql;
MYSQL_RES* res;
char *user,*dpasswd;
char *user, *dpasswd;
SERVER* server;
int conn_timeout = 1;
bool rval = true;
user = monitor->user;
dpasswd = decryptPassword(monitor->password);
if ((mysql = mysql_init(NULL)) == NULL)
{
MXS_ERROR("[%s] Error: MySQL connection initialization failed.", __FUNCTION__);
free(dpasswd);
return false;
}
GATEWAY_CONF* cnf = config_get_global_options();
mysql_options(mysql, MYSQL_OPT_READ_TIMEOUT, &cnf->auth_read_timeout);
mysql_options(mysql, MYSQL_OPT_CONNECT_TIMEOUT, &cnf->auth_conn_timeout);
mysql_options(mysql, MYSQL_OPT_WRITE_TIMEOUT, &cnf->auth_write_timeout);
user = monitor->user;
dpasswd = decryptPassword(monitor->password);
server = monitor->databases->server;
mysql_options(mysql,MYSQL_OPT_USE_REMOTE_CONNECTION,NULL);
mysql_options(mysql,MYSQL_OPT_CONNECT_TIMEOUT,&conn_timeout);
/** Connect to the first server. This assumes all servers have identical
* user permissions. */
@ -556,17 +557,17 @@ bool check_monitor_permissions(MONITOR* monitor)
return false;
}
if (mysql_query(mysql,"show slave status") != 0)
if (mysql_query(mysql, "show slave status") != 0)
{
if (mysql_errno(mysql) == ER_SPECIFIC_ACCESS_DENIED_ERROR)
{
MXS_ERROR("%s: User '%s' is missing REPLICATION CLIENT privileges. MySQL error message: %s",
monitor->name,user,mysql_error(mysql));
monitor->name, user, mysql_error(mysql));
}
else
{
MXS_ERROR("%s: Monitor failed to query for slave status. MySQL error message: %s",
monitor->name,mysql_error(mysql));
monitor->name, mysql_error(mysql));
}
rval = false;
}
@ -575,7 +576,7 @@ bool check_monitor_permissions(MONITOR* monitor)
if ((res = mysql_use_result(mysql)) == NULL)
{
MXS_ERROR("%s: Result retrieval failed when checking for REPLICATION CLIENT permissions: %s",
monitor->name,mysql_error(mysql));
monitor->name, mysql_error(mysql));
rval = false;
}
else
@ -906,47 +907,46 @@ mon_connect_to_db(MONITOR* mon, MONITOR_SERVERS *database)
return rval;
}
int connect_timeout = mon->connect_timeout;
int read_timeout = mon->read_timeout;
int write_timeout = mon->write_timeout;
char *uname = database->server->monuser ? database->server->monuser : mon->user;
char *passwd = database->server->monpw ? database->server->monpw : mon->password;
char *dpwd = decryptPassword(passwd);
if (database->con)
{
mysql_close(database->con);
}
database->con = mysql_init(NULL);
mysql_options(database->con, MYSQL_OPT_CONNECT_TIMEOUT, (void *) &connect_timeout);
mysql_options(database->con, MYSQL_OPT_READ_TIMEOUT, (void *) &read_timeout);
mysql_options(database->con, MYSQL_OPT_WRITE_TIMEOUT, (void *) &write_timeout);
time_t start = time(NULL);
bool result = (mysql_real_connect(database->con,
database->server->name,
uname,
dpwd,
NULL,
database->server->port,
NULL,
0) != NULL);
time_t end = time(NULL);
if (!result)
if ((database->con = mysql_init(NULL)))
{
if ((int) difftime(end, start) >= connect_timeout)
char *uname = database->server->monuser ? database->server->monuser : mon->user;
char *passwd = database->server->monpw ? database->server->monpw : mon->password;
char *dpwd = decryptPassword(passwd);
mysql_options(database->con, MYSQL_OPT_CONNECT_TIMEOUT, (void *) &mon->connect_timeout);
mysql_options(database->con, MYSQL_OPT_READ_TIMEOUT, (void *) &mon->read_timeout);
mysql_options(database->con, MYSQL_OPT_WRITE_TIMEOUT, (void *) &mon->write_timeout);
time_t start = time(NULL);
bool result = (mysql_real_connect(database->con, database->server->name,
uname, dpwd, NULL, database->server->port,
NULL, 0) != NULL);
time_t end = time(NULL);
if (!result)
{
rval = MONITOR_CONN_TIMEOUT;
}
else
{
rval = MONITOR_CONN_REFUSED;
if ((int) difftime(end, start) >= mon->connect_timeout)
{
rval = MONITOR_CONN_TIMEOUT;
}
else
{
rval = MONITOR_CONN_REFUSED;
}
}
free(dpwd);
}
else
{
rval = MONITOR_CONN_REFUSED;
}
free(dpwd);
return rval;
}