const std::string LLSavedLoginEntry::getPassword() const
{
return (mEntry.has("password") ? decryptPassword(mEntry.get("password")) : std::string());
}
/**
* Monitor an individual server
*
* @param database The database to probe
*/
static void
monitorDatabase(MONITOR_SERVERS *database, char *defaultUser, char *defaultPasswd)
{
MYSQL_ROW row;
MYSQL_RES *result;
int num_fields;
int isjoined = 0;
char *uname = defaultUser, *passwd = defaultPasswd;
unsigned long int server_version = 0;
char *server_string;
if (database->server->monuser != NULL)
{
uname = database->server->monuser;
passwd = database->server->monpw;
}
if (uname == NULL)
return;
/* Don't even probe server flagged as in maintenance */
if (SERVER_IN_MAINT(database->server))
return;
if (database->con == NULL || mysql_ping(database->con) != 0)
{
char *dpwd = decryptPassword(passwd);
int rc;
int read_timeout = 1;
database->con = mysql_init(NULL);
rc = mysql_options(database->con, MYSQL_OPT_READ_TIMEOUT, (void *)&read_timeout);
if (mysql_real_connect(database->con, database->server->name,
uname, dpwd, NULL, database->server->port, NULL, 0) == NULL)
{
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Monitor was unable to connect to "
"server %s:%d : \"%s\"",
database->server->name,
database->server->port,
mysql_error(database->con))));
server_clear_status(database->server, SERVER_RUNNING);
if (mysql_errno(database->con) == ER_ACCESS_DENIED_ERROR)
{
server_set_status(database->server, SERVER_AUTH_ERROR);
}
database->server->node_id = -1;
free(dpwd);
return;
}
else
{
server_clear_status(database->server, SERVER_AUTH_ERROR);
}
free(dpwd);
}
/* If we get this far then we have a working connection */
server_set_status(database->server, SERVER_RUNNING);
/* get server version from current server */
server_version = mysql_get_server_version(database->con);
/* get server version string */
server_string = (char *)mysql_get_server_info(database->con);
if (server_string) {
database->server->server_string = realloc(database->server->server_string, strlen(server_string)+1);
if (database->server->server_string)
strcpy(database->server->server_string, server_string);
}
/* Check if the the SQL node is able to contact one or more data nodes */
if (mysql_query(database->con, "SHOW STATUS LIKE 'Ndb_number_of_ready_data_nodes'") == 0
&& (result = mysql_store_result(database->con)) != NULL)
{
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result)))
{
if (atoi(row[1]) > 0)
isjoined = 1;
}
mysql_free_result(result);
}
/* Check the the SQL node id in the MySQL cluster */
if (mysql_query(database->con, "SHOW STATUS LIKE 'Ndb_cluster_node_id'") == 0
&& (result = mysql_store_result(database->con)) != NULL)
{
long cluster_node_id = -1;
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result)))
{
cluster_node_id = strtol(row[1], NULL, 10);
if ((errno == ERANGE && (cluster_node_id == LONG_MAX
|| cluster_node_id == LONG_MIN)) || (errno != 0 && cluster_node_id == 0))
{
cluster_node_id = -1;
}
database->server->node_id = cluster_node_id;
}
mysql_free_result(result);
}
if (isjoined) {
server_set_status(database->server, SERVER_NDB);
database->server->depth = 0;
} else {
server_clear_status(database->server, SERVER_NDB);
database->server->depth = -1;
}
}
/**
* Monitor an individual server
*
* @param handle The MySQL Monitor object
* @param database The database to probe
*/
static void
monitorDatabase(MONITOR *mon, MONITOR_SERVERS *database)
{
GALERA_MONITOR* handle = (GALERA_MONITOR*)mon->handle;
MYSQL_ROW row;
MYSQL_RES *result,*result2;
int isjoined = 0;
char *uname = mon->user;
char *passwd = mon->password;
unsigned long int server_version = 0;
char *server_string;
if (database->server->monuser != NULL)
{
uname = database->server->monuser;
passwd = database->server->monpw;
}
if (uname == NULL)
return;
/* Don't even probe server flagged as in maintenance */
if (SERVER_IN_MAINT(database->server))
return;
/** Store previous status */
database->mon_prev_status = database->server->status;
if (database->con == NULL || mysql_ping(database->con) != 0)
{
char *dpwd = decryptPassword(passwd);
int connect_timeout = mon->connect_timeout;
int read_timeout = mon->read_timeout;
int write_timeout = mon->write_timeout;
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);
if (mysql_real_connect(database->con, database->server->name,
uname, dpwd, NULL, database->server->port, NULL, 0) == NULL)
{
free(dpwd);
server_clear_status(database->server, SERVER_RUNNING);
/* Also clear Joined, M/S and Stickiness bits */
server_clear_status(database->server, SERVER_JOINED);
server_clear_status(database->server, SERVER_SLAVE);
server_clear_status(database->server, SERVER_MASTER);
server_clear_status(database->server, SERVER_MASTER_STICKINESS);
if (mysql_errno(database->con) == ER_ACCESS_DENIED_ERROR)
{
server_set_status(database->server, SERVER_AUTH_ERROR);
}
database->server->node_id = -1;
if (mon_status_changed(database) && mon_print_fail_status(database))
{
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Monitor was unable to connect to "
"server %s:%d : \"%s\"",
database->server->name,
database->server->port,
mysql_error(database->con))));
}
return;
}
else
{
server_clear_status(database->server, SERVER_AUTH_ERROR);
}
free(dpwd);
}
/* If we get this far then we have a working connection */
server_set_status(database->server, SERVER_RUNNING);
/* get server version string */
server_string = (char *)mysql_get_server_info(database->con);
if (server_string) {
database->server->server_string = realloc(database->server->server_string, strlen(server_string)+1);
if (database->server->server_string)
strcpy(database->server->server_string, server_string);
}
/* Check if the the Galera FSM shows this node is joined to the cluster */
if (mysql_query(database->con, "SHOW STATUS LIKE 'wsrep_local_state'") == 0
&& (result = mysql_store_result(database->con)) != NULL)
{
if(mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
skygw_log_write(LE,"Error: Unexpected result for \"SHOW STATUS LIKE 'wsrep_local_state'\". Expected 2 columns."
" MySQL Version: %s",version_str);
return;
}
while ((row = mysql_fetch_row(result)))
{
if (strcmp(row[1], "4") == 0)
isjoined = 1;
/* Check if the node is a donor and is using xtrabackup, in this case it can stay alive */
else if (strcmp(row[1], "2") == 0 && handle->availableWhenDonor == 1) {
if (mysql_query(database->con, "SHOW VARIABLES LIKE 'wsrep_sst_method'") == 0
&& (result2 = mysql_store_result(database->con)) != NULL)
{
if(mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
mysql_free_result(result2);
skygw_log_write(LE,"Error: Unexpected result for \"SHOW VARIABLES LIKE 'wsrep_sst_method'\". Expected 2 columns."
" MySQL Version: %s",version_str);
return;
}
while ((row = mysql_fetch_row(result2)))
{
if (strncmp(row[1], "xtrabackup", 10) == 0)
isjoined = 1;
}
mysql_free_result(result2);
}
}
}
mysql_free_result(result);
}
/* Check the the Galera node index in the cluster */
if (mysql_query(database->con, "SHOW STATUS LIKE 'wsrep_local_index'") == 0
&& (result = mysql_store_result(database->con)) != NULL)
{
long local_index = -1;
if(mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
skygw_log_write(LE,"Error: Unexpected result for \"SHOW STATUS LIKE 'wsrep_local_index'\". Expected 2 columns."
" MySQL Version: %s",version_str);
return;
}
while ((row = mysql_fetch_row(result)))
{
local_index = strtol(row[1], NULL, 10);
if ((errno == ERANGE && (local_index == LONG_MAX
|| local_index == LONG_MIN)) || (errno != 0 && local_index == 0))
{
local_index = -1;
}
database->server->node_id = local_index;
}
mysql_free_result(result);
}
if (isjoined)
server_set_status(database->server, SERVER_JOINED);
else
server_clear_status(database->server, SERVER_JOINED);
}
