hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'MXS-121' into develop

Browse Source
This commit is contained in:
Markus Makela
2015-05-21 17:53:01 +03:00
parent 229cdb73e7 3301ffc76d
commit ac55f7c6fe
22 changed files with 2138 additions and 1257 deletions
Download Patch File Download Diff File Expand all files Collapse all files

594
server/modules/monitor/mysql_mon.c
View File

@ -46,24 +46,13 @@
* 10/11/14 Massimiliano Pinto Addition of setNetworkTimeout for connect, read, write
* 18/11/14 Massimiliano Pinto One server only in configuration becomes master.
* servers=server1 must be present in mysql_mon and in router sections as well.
* 08/05/15 Markus Makela Added launchable scripts
*
* @endverbatim
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <monitor.h>
#include <mysqlmon.h>
#include <thread.h>
#include <mysql.h>
#include <mysqld_error.h>
#include <skygw_utils.h>
#include <log_manager.h>
#include <secrets.h>
#include <dcb.h>
#include <modinfo.h>
#include <maxconfig.h>
/** Defined in log_manager.cc */
extern int lm_enabled_logfiles_bitmask;
@ -83,33 +72,19 @@ MODULE_INFO info = {
static void *startMonitor(void *,void*);
static void stopMonitor(void *);
static void registerServer(void *, SERVER *);
static void unregisterServer(void *, SERVER *);
static void defaultUser(void *, char *, char *);
static void diagnostics(DCB *, void *);
static void setInterval(void *, size_t);
static void defaultId(void *, unsigned long);
static void setNetworkTimeout(void *, int, int);
static bool mon_status_changed(MONITOR_SERVERS* mon_srv);
static bool mon_print_fail_status(MONITOR_SERVERS* mon_srv);
static MONITOR_SERVERS *getServerByNodeId(MONITOR_SERVERS *, long);
static MONITOR_SERVERS *getSlaveOfNodeId(MONITOR_SERVERS *, long);
static MONITOR_SERVERS *get_replication_tree(MYSQL_MONITOR *, int);
static MONITOR_SERVERS *get_replication_tree(MONITOR *, int);
static void set_master_heartbeat(MYSQL_MONITOR *, MONITOR_SERVERS *);
static void set_slave_heartbeat(MYSQL_MONITOR *, MONITOR_SERVERS *);
static void set_slave_heartbeat(MONITOR *, MONITOR_SERVERS *);
static int add_slave_to_master(long *, int, long);
static void monitor_set_pending_status(MONITOR_SERVERS *, int);
static void monitor_clear_pending_status(MONITOR_SERVERS *, int);
bool isMySQLEvent(monitor_event_t event);
static MONITOR_OBJECT MyObject = {
startMonitor,
stopMonitor,
registerServer,
unregisterServer,
defaultUser,
diagnostics,
setInterval,
setNetworkTimeout
diagnostics
};
/**
@ -156,48 +131,80 @@ GetModuleObject()
* This function creates a thread to execute the actual monitoring.
*
* @param arg The current handle - NULL if first start
* @param opt Configuration parameters
* @return A handle to use when interacting with the monitor
*/
static void *
startMonitor(void *arg, void* opt)
{
MYSQL_MONITOR *handle;
CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
if (arg)
{
handle = arg; /* Must be a restart */
handle->shutdown = 0;
}
else
{
if ((handle = (MYSQL_MONITOR *)malloc(sizeof(MYSQL_MONITOR))) == NULL)
return NULL;
handle->databases = NULL;
handle->shutdown = 0;
handle->defaultUser = NULL;
handle->defaultPasswd = NULL;
handle->id = config_get_gateway_id();
handle->interval = MONITOR_INTERVAL;
handle->replicationHeartbeat = 0;
handle->detectStaleMaster = 0;
handle->master = NULL;
handle->connect_timeout=DEFAULT_CONNECT_TIMEOUT;
handle->read_timeout=DEFAULT_READ_TIMEOUT;
handle->write_timeout=DEFAULT_WRITE_TIMEOUT;
spinlock_init(&handle->lock);
}
MONITOR* monitor = (MONITOR*)arg;
MYSQL_MONITOR *handle = (MYSQL_MONITOR*)monitor->handle;
CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
bool have_events = false;
while(params)
if (handle)
{
handle->shutdown = 0;
}
else
{
if ((handle = (MYSQL_MONITOR *)malloc(sizeof(MYSQL_MONITOR))) == NULL)
return NULL;
handle->shutdown = 0;
handle->id = config_get_gateway_id();
handle->replicationHeartbeat = 0;
handle->detectStaleMaster = 0;
handle->master = NULL;
handle->script = NULL;
memset(handle->events,false,sizeof(handle->events));
spinlock_init(&handle->lock);
}
while(params)
{
if(!strcmp(params->name,"detect_stale_master"))
handle->detectStaleMaster = config_truth_value(params->value);
else if(!strcmp(params->name,"detect_replication_lag"))
handle->replicationHeartbeat = config_truth_value(params->value);
else if(!strcmp(params->name,"script"))
{
if(!strcmp(params->name,"detect_stale_master"))
handle->detectStaleMaster = config_truth_value(params->value);
else if(!strcmp(params->name,"detect_replication_lag"))
handle->replicationHeartbeat = config_truth_value(params->value);
params = params->next;
if(handle->script)
free(handle->script);
if(access(params->value,X_OK) == 0)
{
handle->script = strdup(params->value);
}
else
{
if(access(params->value,F_OK) == 0)
{
skygw_log_write(LE,
"Error: The file cannot be executed: %s",
params->value);
}
else
{
skygw_log_write(LE,
"Error: The file cannot be found: %s",
params->value);
}
handle->script = NULL;
}
}
handle->tid = (THREAD)thread_start(monitorMain, handle);
return handle;
else if(!strcmp(params->name,"events"))
{
mon_parse_event_string(handle->events,sizeof(handle->events),params->value);
have_events = true;
}
params = params->next;
}
/** If no specific events are given, enable them all */
if(!have_events)
{
memset(handle->events,true,sizeof(handle->events));
}
handle->tid = (THREAD)thread_start(monitorMain, monitor);
return handle;
}
/**
@ -208,107 +215,11 @@ CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
static void
stopMonitor(void *arg)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
MONITOR* mon = (MONITOR*)arg;
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)mon->handle;
handle->shutdown = 1;
thread_wait((void *)handle->tid);
}
/**
* Register a server that must be added to the monitored servers for
* a monitoring module.
*
* @param arg A handle on the running monitor module
* @param server The server to add
*/
static void
registerServer(void *arg, SERVER *server)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
MONITOR_SERVERS *ptr, *db;
if ((db = (MONITOR_SERVERS *)malloc(sizeof(MONITOR_SERVERS))) == NULL)
return;
db->server = server;
db->con = NULL;
db->next = NULL;
db->mon_err_count = 0;
db->mon_prev_status = 0;
/* pending status is updated by get_replication_tree */
db->pending_status = 0;
spinlock_acquire(&handle->lock);
if (handle->databases == NULL)
handle->databases = db;
else
{
ptr = handle->databases;
while (ptr->next != NULL)
ptr = ptr->next;
ptr->next = db;
}
spinlock_release(&handle->lock);
}
/**
* Remove a server from those being monitored by a monitoring module
*
* @param arg A handle on the running monitor module
* @param server The server to remove
*/
static void
unregisterServer(void *arg, SERVER *server)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
MONITOR_SERVERS *ptr, *lptr;
spinlock_acquire(&handle->lock);
if (handle->databases == NULL)
{
spinlock_release(&handle->lock);
return;
}
if (handle->databases->server == server)
{
ptr = handle->databases;
handle->databases = handle->databases->next;
free(ptr);
}
else
{
ptr = handle->databases;
while (ptr->next != NULL && ptr->next->server != server)
ptr = ptr->next;
if (ptr->next)
{
lptr = ptr->next;
ptr->next = ptr->next->next;
free(lptr);
}
}
spinlock_release(&handle->lock);
}
/**
* Set the default username and password to use to monitor if the server does not
* override this.
*
* @param arg The handle allocated by startMonitor
* @param uname The default user name
* @param passwd The default password
*/
static void
defaultUser(void *arg, char *uname, char *passwd)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
if (handle->defaultUser)
free(handle->defaultUser);
if (handle->defaultPasswd)
free(handle->defaultPasswd);
handle->defaultUser = strdup(uname);
handle->defaultPasswd = strdup(passwd);
handle->shutdown = 1;
thread_wait((void *)handle->tid);
}
/**
@ -319,45 +230,46 @@ MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
*/
static void diagnostics(DCB *dcb, void *arg)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
MONITOR_SERVERS *db;
char *sep;
MONITOR* mon = (MONITOR*)arg;
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)mon->handle;
MONITOR_SERVERS *db;
char *sep;
switch (handle->status)
{
case MONITOR_RUNNING:
dcb_printf(dcb, "\tMonitor running\n");
break;
case MONITOR_STOPPING:
dcb_printf(dcb, "\tMonitor stopping\n");
break;
case MONITOR_STOPPED:
dcb_printf(dcb, "\tMonitor stopped\n");
break;
}
switch (handle->status)
{
case MONITOR_RUNNING:
dcb_printf(dcb, "\tMonitor running\n");
break;
case MONITOR_STOPPING:
dcb_printf(dcb, "\tMonitor stopping\n");
break;
case MONITOR_STOPPED:
dcb_printf(dcb, "\tMonitor stopped\n");
break;
}
dcb_printf(dcb,"\tSampling interval:\t%lu milliseconds\n", handle->interval);
dcb_printf(dcb,"\tMaxScale MonitorId:\t%lu\n", handle->id);
dcb_printf(dcb,"\tReplication lag:\t%s\n", (handle->replicationHeartbeat == 1) ? "enabled" : "disabled");
dcb_printf(dcb,"\tDetect Stale Master:\t%s\n", (handle->detectStaleMaster == 1) ? "enabled" : "disabled");
dcb_printf(dcb,"\tConnect Timeout:\t%i seconds\n", handle->connect_timeout);
dcb_printf(dcb,"\tRead Timeout:\t\t%i seconds\n", handle->read_timeout);
dcb_printf(dcb,"\tWrite Timeout:\t\t%i seconds\n", handle->write_timeout);
dcb_printf(dcb, "\tMonitored servers: ");
db = handle->databases;
sep = "";
while (db)
{
dcb_printf(dcb,
"%s%s:%d",
sep,
db->server->name,
db->server->port);
sep = ", ";
db = db->next;
}
dcb_printf(dcb, "\n");
dcb_printf(dcb,"\tSampling interval:\t%lu milliseconds\n", mon->interval);
dcb_printf(dcb,"\tMaxScale MonitorId:\t%lu\n", handle->id);
dcb_printf(dcb,"\tReplication lag:\t%s\n", (handle->replicationHeartbeat == 1) ? "enabled" : "disabled");
dcb_printf(dcb,"\tDetect Stale Master:\t%s\n", (handle->detectStaleMaster == 1) ? "enabled" : "disabled");
dcb_printf(dcb,"\tConnect Timeout:\t%i seconds\n", mon->connect_timeout);
dcb_printf(dcb,"\tRead Timeout:\t\t%i seconds\n", mon->read_timeout);
dcb_printf(dcb,"\tWrite Timeout:\t\t%i seconds\n", mon->write_timeout);
dcb_printf(dcb, "\tMonitored servers: ");
db = mon->databases;
sep = "";
while (db)
{
dcb_printf(dcb,
"%s%s:%d",
sep,
db->server->name,
db->server->port);
sep = ", ";
db = db->next;
}
dcb_printf(dcb, "\n");
}
/**
@ -367,14 +279,14 @@ char *sep;
* @param database The database to probe
*/
static void
monitorDatabase(MYSQL_MONITOR *handle, MONITOR_SERVERS *database)
monitorDatabase(MONITOR *mon, MONITOR_SERVERS *database)
{
MYSQL_MONITOR* handle = mon->handle;
MYSQL_ROW row;
MYSQL_RES *result;
int num_fields;
int isslave = 0;
char *uname = handle->defaultUser;
char *passwd = handle->defaultPasswd;
char *uname = mon->user;
char *passwd = mon->password;
unsigned long int server_version = 0;
char *server_string;
@ -397,17 +309,15 @@ char *server_string;
if (database->con == NULL || mysql_ping(database->con) != 0)
{
char *dpwd = decryptPassword(passwd);
int rc;
int connect_timeout = handle->connect_timeout;
int read_timeout = handle->read_timeout;
int write_timeout = handle->write_timeout;
if(database->con)
mysql_close(database->con);
int connect_timeout = mon->connect_timeout;
int read_timeout = mon->read_timeout;
int write_timeout = mon->write_timeout;
database->con = mysql_init(NULL);
rc = mysql_options(database->con, MYSQL_OPT_CONNECT_TIMEOUT, (void *)&connect_timeout);
rc = mysql_options(database->con, MYSQL_OPT_READ_TIMEOUT, (void *)&read_timeout);
rc = mysql_options(database->con, MYSQL_OPT_WRITE_TIMEOUT, (void *)&write_timeout);
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,
@ -486,7 +396,6 @@ char *server_string;
&& (result = mysql_store_result(database->con)) != NULL)
{
long server_id = -1;
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result)))
{
server_id = strtol(row[0], NULL, 10);
@ -512,7 +421,6 @@ char *server_string;
{
int i = 0;
long master_id = -1;
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result)))
{
/* get Slave_IO_Running and Slave_SQL_Running values*/
@ -551,7 +459,6 @@ char *server_string;
&& (result = mysql_store_result(database->con)) != NULL)
{
long master_id = -1;
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result)))
{
/* get Slave_IO_Running and Slave_SQL_Running values*/
@ -608,15 +515,22 @@ char *server_string;
static void
monitorMain(void *arg)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
MONITOR* mon = (MONITOR*) arg;
MYSQL_MONITOR *handle;
MONITOR_SERVERS *ptr;
int replication_heartbeat = handle->replicationHeartbeat;
int detect_stale_master = handle->detectStaleMaster;
int replication_heartbeat;
int detect_stale_master;
int num_servers=0;
MONITOR_SERVERS *root_master = NULL;
size_t nrounds = 0;
int log_no_master = 1;
spinlock_acquire(&mon->lock);
handle = (MYSQL_MONITOR *)mon->handle;
spinlock_release(&mon->lock);
replication_heartbeat = handle->replicationHeartbeat;
detect_stale_master = handle->detectStaleMaster;
if (mysql_thread_init())
{
LOGIF(LE, (skygw_log_write_flush(
@ -645,7 +559,7 @@ int log_no_master = 1;
* round.
*/
if (nrounds != 0 &&
((nrounds*MON_BASE_INTERVAL_MS)%handle->interval) >=
((nrounds*MON_BASE_INTERVAL_MS)%mon->interval) >=
MON_BASE_INTERVAL_MS)
{
nrounds += 1;
@ -656,15 +570,17 @@ int log_no_master = 1;
num_servers = 0;
/* start from the first server in the list */
ptr = handle->databases;
ptr = mon->databases;
while (ptr)
{
ptr->mon_prev_status = ptr->server->status;
/* copy server status into monitor pending_status */
ptr->pending_status = ptr->server->status;
/* monitor current node */
monitorDatabase(handle, ptr);
monitorDatabase(mon, ptr);
/* reset the slave list of current node */
if (ptr->server->slaves) {
@ -697,7 +613,12 @@ int log_no_master = 1;
!(SERVER_IS_IN_CLUSTER(ptr->server)))
{
dcb_call_foreach(ptr->server,DCB_REASON_NOT_RESPONDING);
}
}
}
if (mon_status_changed(ptr))
@ -733,7 +654,7 @@ int log_no_master = 1;
ptr = ptr->next;
}
ptr = handle->databases;
ptr = mon->databases;
/* if only one server is configured, that's is Master */
if (num_servers == 1) {
if (SERVER_IS_RUNNING(ptr->server)) {
@ -750,12 +671,12 @@ int log_no_master = 1;
}
} else {
/* Compute the replication tree */
root_master = get_replication_tree(handle, num_servers);
root_master = get_replication_tree(mon, num_servers);
}
/* Update server status from monitor pending status on that server*/
ptr = handle->databases;
ptr = mon->databases;
while (ptr)
{
if (! SERVER_IN_MAINT(ptr->server)) {
@ -792,7 +713,30 @@ int log_no_master = 1;
ptr = ptr->next;
}
/* log master detection failure od first master becomes available after failure */
ptr = mon->databases;
monitor_event_t evtype;
while(ptr)
{
/** Execute monitor script if a server state has changed */
if(mon_status_changed(ptr))
{
evtype = mon_get_event_type(ptr);
if(isMySQLEvent(evtype))
{
skygw_log_write(LOGFILE_TRACE,"Server changed state: %s[%s:%u]: %s",
ptr->server->unique_name,
ptr->server->name,ptr->server->port,
mon_get_event_name(ptr));
if(handle->script && handle->events[evtype])
{
monitor_launch_script(mon,ptr,handle->script);
}
}
}
ptr = ptr->next;
}
/* log master detection failure of first master becomes available after failure */
if (root_master &&
mon_status_changed(root_master) &&
!(root_master->server->status & SERVER_STALE_STATUS))
@ -832,7 +776,7 @@ int log_no_master = 1;
SERVER_IS_RELAY_SERVER(root_master->server)))
{
set_master_heartbeat(handle, root_master);
ptr = handle->databases;
ptr = mon->databases;
while (ptr) {
if( (! SERVER_IN_MAINT(ptr->server)) && SERVER_IS_RUNNING(ptr->server))
@ -841,7 +785,7 @@ int log_no_master = 1;
(SERVER_IS_SLAVE(ptr->server) ||
SERVER_IS_RELAY_SERVER(ptr->server)))
{
set_slave_heartbeat(handle, ptr);
set_slave_heartbeat(mon, ptr);
}
}
ptr = ptr->next;
@ -863,19 +807,6 @@ MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
memcpy(&handle->id, &id, sizeof(unsigned long));
}
/**
* Set the monitor sampling interval.
*
* @param arg The handle allocated by startMonitor
* @param interval The interval to set in monitor struct, in milliseconds
*/
static void
setInterval(void *arg, size_t interval)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
memcpy(&handle->interval, &interval, sizeof(unsigned long));
}
/**
* Enable/Disable the MySQL Replication hearbeat, detecting slave lag behind master.
*
@ -904,54 +835,6 @@ MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
memcpy(&handle->detectStaleMaster, &enable, sizeof(int));
}
/**
* Check if current monitored server status has changed
*
* @param mon_srv The monitored server
* @return true if status has changed or false
*/
static bool mon_status_changed(
MONITOR_SERVERS* mon_srv)
{
bool succp;
if (mon_srv->mon_prev_status != mon_srv->server->status)
{
succp = true;
}
else
{
succp = false;
}
return succp;
}
/**
* Check if current monitored server has a loggable failure status
*
* @param mon_srv The monitored server
* @return true if failed status can be logged or false
*/
static bool mon_print_fail_status(
MONITOR_SERVERS* mon_srv)
{
bool succp;
int errcount = mon_srv->mon_err_count;
uint8_t modval;
modval = 1<<(MIN(errcount/10, 7));
if (SERVER_IS_DOWN(mon_srv->server) && errcount == 0)
{
succp = true;
}
else
{
succp = false;
}
return succp;
}
/**
* Fetch a MySQL node by node_id
*
@ -1113,13 +996,13 @@ static void set_master_heartbeat(MYSQL_MONITOR *handle, MONITOR_SERVERS *databas
* @param handle The monitor handle
* @param database The number database server
*/
static void set_slave_heartbeat(MYSQL_MONITOR *handle, MONITOR_SERVERS *database) {
static void set_slave_heartbeat(MONITOR* mon, MONITOR_SERVERS *database) {
MYSQL_MONITOR *handle = (MYSQL_MONITOR*)mon->handle;
unsigned long id = handle->id;
time_t heartbeat;
char select_heartbeat_query[256] = "";
MYSQL_ROW row;
MYSQL_RES *result;
int num_fields;
if (handle->master == NULL) {
LOGIF(LE, (skygw_log_write_flush(
@ -1139,7 +1022,6 @@ static void set_slave_heartbeat(MYSQL_MONITOR *handle, MONITOR_SERVERS *database
if (handle->master !=NULL && (mysql_query(database->con, select_heartbeat_query) == 0
&& (result = mysql_store_result(database->con)) != NULL)) {
int rows_found = 0;
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result))) {
int rlag = -1;
@ -1164,7 +1046,7 @@ static void set_slave_heartbeat(MYSQL_MONITOR *handle, MONITOR_SERVERS *database
if (rlag >= 0) {
/* store rlag only if greater than monitor sampling interval */
database->server->rlag = (rlag > (handle->interval / 1000)) ? rlag : 0;
database->server->rlag = (rlag > (mon->interval / 1000)) ? rlag : 0;
} else {
database->server->rlag = -1;
}
@ -1218,7 +1100,8 @@ static void set_slave_heartbeat(MYSQL_MONITOR *handle, MONITOR_SERVERS *database
* @return The server at root level with SERVER_MASTER bit
*/
static MONITOR_SERVERS *get_replication_tree(MYSQL_MONITOR *handle, int num_servers) {
static MONITOR_SERVERS *get_replication_tree(MONITOR *mon, int num_servers) {
MYSQL_MONITOR* handle = (MYSQL_MONITOR*)mon->handle;
MONITOR_SERVERS *ptr;
MONITOR_SERVERS *backend;
SERVER *current;
@ -1226,7 +1109,7 @@ static MONITOR_SERVERS *get_replication_tree(MYSQL_MONITOR *handle, int num_serv
long node_id;
int root_level;
ptr = handle->databases;
ptr = mon->databases;
root_level = num_servers;
while (ptr)
@ -1245,7 +1128,7 @@ static MONITOR_SERVERS *get_replication_tree(MYSQL_MONITOR *handle, int num_serv
node_id = current->master_id;
if (node_id < 1) {
MONITOR_SERVERS *find_slave;
find_slave = getSlaveOfNodeId(handle->databases, current->node_id);
find_slave = getSlaveOfNodeId(mon->databases, current->node_id);
if (find_slave == NULL) {
current->depth = -1;
@ -1265,7 +1148,7 @@ static MONITOR_SERVERS *get_replication_tree(MYSQL_MONITOR *handle, int num_serv
root_level = current->depth;
handle->master = ptr;
}
backend = getServerByNodeId(handle->databases, node_id);
backend = getServerByNodeId(mon->databases, node_id);
if (backend) {
node_id = backend->server->master_id;
@ -1281,7 +1164,7 @@ static MONITOR_SERVERS *get_replication_tree(MYSQL_MONITOR *handle, int num_serv
MONITOR_SERVERS *master;
current->depth = depth;
master = getServerByNodeId(handle->databases, current->master_id);
master = getServerByNodeId(mon->databases, current->master_id);
if (master && master->server && master->server->node_id > 0) {
add_slave_to_master(master->server->slaves, MONITOR_MAX_NUM_SLAVES, current->node_id);
master->server->depth = current->depth -1;
@ -1340,88 +1223,31 @@ static int add_slave_to_master(long *slaves_list, int list_size, long node_id) {
return 0;
}
static monitor_event_t mysql_events[] = {
MASTER_DOWN_EVENT,
MASTER_UP_EVENT,
SLAVE_DOWN_EVENT,
SLAVE_UP_EVENT,
SERVER_DOWN_EVENT,
SERVER_UP_EVENT,
LOST_MASTER_EVENT,
LOST_SLAVE_EVENT,
NEW_MASTER_EVENT,
NEW_SLAVE_EVENT,
MAX_MONITOR_EVENT
};
/**
* Set a pending status bit in the monior server
*
* @param server The server to update
* @param bit The bit to clear for the server
*/
static void
monitor_set_pending_status(MONITOR_SERVERS *ptr, int bit)
* Check if the MySQL monitor is monitoring this event type.
* @param event Event to check
* @return True if the event is monitored, false if it is not
* */
bool isMySQLEvent(monitor_event_t event)
{
ptr->pending_status |= bit;
}
/**
* Clear a pending status bit in the monior server
*
* @param server The server to update
* @param bit The bit to clear for the server
*/
static void
monitor_clear_pending_status(MONITOR_SERVERS *ptr, int bit)
{
ptr->pending_status &= ~bit;
}
/**
* Set the default id to use in the monitor.
*
* @param arg The handle allocated by startMonitor
* @param type The connect timeout type
* @param value The timeout value to set
*/
static void
setNetworkTimeout(void *arg, int type, int value)
{
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)arg;
int max_timeout = (int)(handle->interval/1000);
int new_timeout = max_timeout -1;
if (new_timeout <= 0)
new_timeout = DEFAULT_CONNECT_TIMEOUT;
switch(type) {
case MONITOR_CONNECT_TIMEOUT:
if (value < max_timeout) {
memcpy(&handle->connect_timeout, &value, sizeof(int));
} else {
memcpy(&handle->connect_timeout, &new_timeout, sizeof(int));
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"warning : Monitor Connect Timeout %i is greater than monitor interval ~%i seconds"
", lowering to %i seconds", value, max_timeout, new_timeout)));
}
break;
case MONITOR_READ_TIMEOUT:
if (value < max_timeout) {
memcpy(&handle->read_timeout, &value, sizeof(int));
} else {
memcpy(&handle->read_timeout, &new_timeout, sizeof(int));
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"warning : Monitor Read Timeout %i is greater than monitor interval ~%i seconds"
", lowering to %i seconds", value, max_timeout, new_timeout)));
}
break;
case MONITOR_WRITE_TIMEOUT:
if (value < max_timeout) {
memcpy(&handle->write_timeout, &value, sizeof(int));
} else {
memcpy(&handle->write_timeout, &new_timeout, sizeof(int));
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"warning : Monitor Write Timeout %i is greater than monitor interval ~%i seconds"
", lowering to %i seconds", value, max_timeout, new_timeout)));
}
break;
default:
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Monitor setNetworkTimeout received an unsupported action type %i", type)));
break;
}
}
int i;
for(i = 0;mysql_events[i] != MAX_MONITOR_EVENT;i++)
{
if(event == mysql_events[i])
return true;
}
return false;
}