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Ndbclustermon formatting changes

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Fixed indentation, bracket alignment and other minor things.
This commit is contained in:
Markus Makela 2015-11-16 14:05:57 +02:00
parent 1bfe85099f
commit 797d9dc03d
1 changed files with 265 additions and 253 deletions
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518
server/modules/monitor/ndbclustermon.c
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@ -33,26 +33,26 @@
#include <mysqlmon.h>
static void monitorMain(void *);
static void monitorMain(void *);
static char *version_str = "V2.1.0";
MODULE_INFO info = {
MODULE_API_MONITOR,
MODULE_BETA_RELEASE,
MONITOR_VERSION,
"A MySQL cluster SQL node monitor"
MODULE_INFO info = {
MODULE_API_MONITOR,
MODULE_BETA_RELEASE,
MONITOR_VERSION,
"A MySQL cluster SQL node monitor"
};
static void *startMonitor(void *,void*);
static void stopMonitor(void *);
static void diagnostics(DCB *, void *);
static void *startMonitor(void *, void*);
static void stopMonitor(void *);
static void diagnostics(DCB *, void *);
bool isNdbEvent(monitor_event_t event);
static MONITOR_OBJECT MyObject = {
startMonitor,
stopMonitor,
diagnostics
static MONITOR_OBJECT MyObject = {
startMonitor,
stopMonitor,
diagnostics
};
/**
@ -63,7 +63,7 @@ static MONITOR_OBJECT MyObject = {
char *
version()
{
return version_str;
return version_str;
}
/**
@ -73,10 +73,10 @@ version()
void
ModuleInit()
{
LOGIF(LM, (skygw_log_write(
LOGFILE_MESSAGE,
"Initialise the MySQL Cluster Monitor module %s.\n",
version_str)));
LOGIF(LM, (skygw_log_write(
LOGFILE_MESSAGE,
"Initialise the MySQL Cluster Monitor module %s.\n",
version_str)));
}
/**
@ -90,7 +90,7 @@ ModuleInit()
MONITOR_OBJECT *
GetModuleObject()
{
return &MyObject;
return &MyObject;
}
/**
@ -100,65 +100,72 @@ GetModuleObject()
*
* @return A handle to use when interacting with the monitor
*/
static void *
startMonitor(void *arg,void* opt)
static void *
startMonitor(void *arg, void* opt)
{
MONITOR* mon = (MONITOR*)arg;
MONITOR* mon = (MONITOR*) arg;
MYSQL_MONITOR *handle = mon->handle;
CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
bool have_events = false,script_error = false;
CONFIG_PARAMETER* params = (CONFIG_PARAMETER*) opt;
bool have_events = false, script_error = false;
if (handle != NULL)
{
handle->shutdown = 0;
handle->shutdown = 0;
}
else
{
if ((handle = (MYSQL_MONITOR *)malloc(sizeof(MYSQL_MONITOR))) == NULL)
return NULL;
handle->shutdown = 0;
handle->id = MONITOR_DEFAULT_ID;
handle->script = NULL;
handle->master = NULL;
memset(handle->events,false,sizeof(handle->events));
spinlock_init(&handle->lock);
}
while(params)
{
if(!strcmp(params->name,"script"))
{
if (externcmd_can_execute(params->value))
if ((handle = (MYSQL_MONITOR *) malloc(sizeof(MYSQL_MONITOR))) == NULL)
{
free(handle->script);
handle->script = strdup(params->value);
return NULL;
}
else
{
script_error = true;
}
}
else if(!strcmp(params->name,"events"))
{
if(mon_parse_event_string((bool*)&handle->events,sizeof(handle->events),params->value) != 0)
script_error = true;
else
have_events = true;
}
params = params->next;
handle->shutdown = 0;
handle->id = MONITOR_DEFAULT_ID;
handle->script = NULL;
handle->master = NULL;
memset(handle->events, false, sizeof(handle->events));
spinlock_init(&handle->lock);
}
if(script_error)
while (params)
{
skygw_log_write(LE,"Error: Errors were found in the script configuration parameters "
"for the monitor '%s'. The script will not be used.",mon->name);
free(handle->script);
handle->script = NULL;
if (!strcmp(params->name, "script"))
{
if (externcmd_can_execute(params->value))
{
free(handle->script);
handle->script = strdup(params->value);
}
else
{
script_error = true;
}
}
else if (!strcmp(params->name, "events"))
{
if (mon_parse_event_string((bool*) &handle->events,
sizeof(handle->events), params->value) != 0)
{
script_error = true;
}
else
{
have_events = true;
}
}
params = params->next;
}
if (script_error)
{
skygw_log_write(LE, "Error: Errors were found in the script configuration parameters "
"for the monitor '%s'. The script will not be used.", mon->name);
free(handle->script);
handle->script = NULL;
}
/** If no specific events are given, enable them all */
if(!have_events)
if (!have_events)
{
memset(handle->events,true,sizeof(handle->events));
memset(handle->events, true, sizeof(handle->events));
}
handle->tid = (THREAD)thread_start(monitorMain, mon);
handle->tid = (THREAD) thread_start(monitorMain, mon);
return handle;
}
@ -167,14 +174,14 @@ startMonitor(void *arg,void* opt)
*
* @param arg Handle on thr running monior
*/
static void
static void
stopMonitor(void *arg)
{
MONITOR* mon = (MONITOR*)arg;
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)mon->handle;
MONITOR* mon = (MONITOR*) arg;
MYSQL_MONITOR *handle = (MYSQL_MONITOR *) mon->handle;
handle->shutdown = 1;
thread_wait((void *)handle->tid);
handle->shutdown = 1;
thread_wait((void *) handle->tid);
}
/**
@ -187,38 +194,38 @@ static void
diagnostics(DCB *dcb, void *arg)
{
MONITOR* mon = arg;
MYSQL_MONITOR *handle = (MYSQL_MONITOR *)mon->handle;
MONITOR_SERVERS *db;
char *sep;
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", mon->interval);
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: ");
dcb_printf(dcb, "\tSampling interval:\t%lu milliseconds\n", mon->interval);
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");
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");
}
/**
@ -227,16 +234,18 @@ char *sep;
* @param database The database to probe
*/
static void
monitorDatabase(MONITOR_SERVERS *database, char *defaultUser, char *defaultPasswd, MONITOR *mon)
monitorDatabase(MONITOR_SERVERS *database, char *defaultUser, char *defaultPasswd, MONITOR *mon)
{
MYSQL_ROW row;
MYSQL_RES *result;
int isjoined = 0;
char *server_string;
MYSQL_ROW row;
MYSQL_RES *result;
int isjoined = 0;
char *server_string;
/* Don't even probe server flagged as in maintenance */
if (SERVER_IN_MAINT(database->server))
{
return;
}
connect_result_t rval = mon_connect_to_db(mon, database);
if (rval != MONITOR_CONN_OK)
@ -258,69 +267,72 @@ char *server_string;
}
server_clear_status(database->server, SERVER_AUTH_ERROR);
/* If we get this far then we have a working connection */
server_set_status(database->server, SERVER_RUNNING);
/* 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);
/* get server version string */
server_string = (char *) mysql_get_server_info(database->con);
if (server_string)
{
server_set_version_string(database->server, 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)
{
if(mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
skygw_log_write(LE,"Error: Unexpected result for \"SHOW STATUS LIKE 'Ndb_number_of_ready_data_nodes'\". Expected 2 columns."
" MySQL Version: %s",version_str);
return;
}
/* 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)
{
if (mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
skygw_log_write(LE, "Error: Unexpected result for \"SHOW STATUS LIKE 'Ndb_number_of_ready_data_nodes'\". Expected 2 columns."
" MySQL Version: %s", version_str);
return;
}
while ((row = mysql_fetch_row(result)))
{
if (atoi(row[1]) > 0)
isjoined = 1;
}
mysql_free_result(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)
{
if(mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
skygw_log_write(LE,"Error: Unexpected result for \"SHOW STATUS LIKE 'Ndb_cluster_node_id'\". Expected 2 columns."
" MySQL Version: %s",version_str);
return;
}
/* 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)
{
if (mysql_field_count(database->con) < 2)
{
mysql_free_result(result);
skygw_log_write(LE, "Error: Unexpected result for \"SHOW STATUS LIKE 'Ndb_cluster_node_id'\". Expected 2 columns."
" MySQL Version: %s", version_str);
return;
}
long cluster_node_id = -1;
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);
}
long cluster_node_id = -1;
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;
}
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;
}
}
/**
@ -332,114 +344,114 @@ static void
monitorMain(void *arg)
{
MONITOR* mon = arg;
MYSQL_MONITOR *handle;
MONITOR_SERVERS *ptr;
size_t nrounds = 0;
MYSQL_MONITOR *handle;
MONITOR_SERVERS *ptr;
size_t nrounds = 0;
spinlock_acquire(&mon->lock);
handle = (MYSQL_MONITOR *)mon->handle;
spinlock_release(&mon->lock);
spinlock_acquire(&mon->lock);
handle = (MYSQL_MONITOR *) mon->handle;
spinlock_release(&mon->lock);
if (mysql_thread_init())
{
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"Fatal : mysql_thread_init failed in monitor "
"module. Exiting.\n")));
return;
}
handle->status = MONITOR_RUNNING;
while (1)
{
if (handle->shutdown)
{
handle->status = MONITOR_STOPPING;
mysql_thread_end();
handle->status = MONITOR_STOPPED;
return;
}
if (mysql_thread_init())
{
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"Fatal : mysql_thread_init failed in monitor "
"module. Exiting.\n")));
return;
}
handle->status = MONITOR_RUNNING;
/** Wait base interval */
thread_millisleep(MON_BASE_INTERVAL_MS);
/**
* Calculate how far away the monitor interval is from its full
* cycle and if monitor interval time further than the base
* interval, then skip monitoring checks. Excluding the first
* round.
*/
if (nrounds != 0 &&
((nrounds*MON_BASE_INTERVAL_MS)%mon->interval) >=
MON_BASE_INTERVAL_MS)
{
nrounds += 1;
continue;
}
nrounds += 1;
ptr = mon->databases;
while (1)
{
if (handle->shutdown)
{
handle->status = MONITOR_STOPPING;
mysql_thread_end();
handle->status = MONITOR_STOPPED;
return;
}
while (ptr)
{
ptr->mon_prev_status = ptr->server->status;
monitorDatabase(ptr, mon->user, mon->password,mon);
/** Wait base interval */
thread_millisleep(MON_BASE_INTERVAL_MS);
/**
* Calculate how far away the monitor interval is from its full
* cycle and if monitor interval time further than the base
* interval, then skip monitoring checks. Excluding the first
* round.
*/
if (nrounds != 0 &&
((nrounds * MON_BASE_INTERVAL_MS) % mon->interval) >=
MON_BASE_INTERVAL_MS)
{
nrounds += 1;
continue;
}
nrounds += 1;
ptr = mon->databases;
if (ptr->server->status != ptr->mon_prev_status ||
SERVER_IS_DOWN(ptr->server))
{
LOGIF(LD, (skygw_log_write_flush(
LOGFILE_DEBUG,
"Backend server %s:%d state : %s",
ptr->server->name,
ptr->server->port,
STRSRVSTATUS(ptr->server))));
}
while (ptr)
{
ptr->mon_prev_status = ptr->server->status;
monitorDatabase(ptr, mon->user, mon->password, mon);
ptr = ptr->next;
}
if (ptr->server->status != ptr->mon_prev_status ||
SERVER_IS_DOWN(ptr->server))
{
LOGIF(LD, (skygw_log_write_flush(
LOGFILE_DEBUG,
"Backend server %s:%d state : %s",
ptr->server->name,
ptr->server->port,
STRSRVSTATUS(ptr->server))));
}
ptr = mon->databases;
monitor_event_t evtype;
ptr = ptr->next;
}
while(ptr)
{
/** Execute monitor script if a server state has changed */
if(mon_status_changed(ptr))
{
evtype = mon_get_event_type(ptr);
if(isNdbEvent(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;
}
}
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 (isNdbEvent(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;
}
}
}
static monitor_event_t ndb_events[] = {
MASTER_DOWN_EVENT,
MASTER_UP_EVENT,
SLAVE_DOWN_EVENT,
SLAVE_UP_EVENT,
SERVER_DOWN_EVENT,
SERVER_UP_EVENT,
NDB_UP_EVENT,
NDB_DOWN_EVENT,
LOST_MASTER_EVENT,
LOST_SLAVE_EVENT,
LOST_NDB_EVENT,
NEW_MASTER_EVENT,
NEW_SLAVE_EVENT,
NEW_NDB_EVENT,
MAX_MONITOR_EVENT
MASTER_DOWN_EVENT,
MASTER_UP_EVENT,
SLAVE_DOWN_EVENT,
SLAVE_UP_EVENT,
SERVER_DOWN_EVENT,
SERVER_UP_EVENT,
NDB_UP_EVENT,
NDB_DOWN_EVENT,
LOST_MASTER_EVENT,
LOST_SLAVE_EVENT,
LOST_NDB_EVENT,
NEW_MASTER_EVENT,
NEW_SLAVE_EVENT,
NEW_NDB_EVENT,
MAX_MONITOR_EVENT
};
/**
@ -450,10 +462,10 @@ static monitor_event_t ndb_events[] = {
bool isNdbEvent(monitor_event_t event)
{
int i;
for(i = 0;ndb_events[i] != MAX_MONITOR_EVENT;i++)
for (i = 0; ndb_events[i] != MAX_MONITOR_EVENT; i++)
{
if(event == ndb_events[i])
return true;
if (event == ndb_events[i])
return true;
}
return false;
}