DbObject::Ptr DbObject::GetOrCreateByObject(const ConfigObject::Ptr& object)
{
boost::mutex::scoped_lock lock(GetStaticMutex());
DbObject::Ptr dbobj = object->GetExtension("DbObject");
if (dbobj)
return dbobj;
DbType::Ptr dbtype = DbType::GetByName(object->GetType()->GetName());
if (!dbtype)
return DbObject::Ptr();
Service::Ptr service;
String name1, name2;
service = dynamic_pointer_cast<Service>(object);
if (service) {
Host::Ptr host = service->GetHost();
name1 = service->GetHost()->GetName();
name2 = service->GetShortName();
} else {
if (object->GetType() == ConfigType::GetByName("CheckCommand") ||
object->GetType() == ConfigType::GetByName("EventCommand") ||
object->GetType() == ConfigType::GetByName("NotificationCommand")) {
Command::Ptr command = dynamic_pointer_cast<Command>(object);
name1 = CompatUtility::GetCommandName(command);
}
else
name1 = object->GetName();
}
dbobj = dbtype->GetOrCreateObjectByName(name1, name2);
dbobj->SetObject(object);
object->SetExtension("DbObject", dbobj);
return dbobj;
}
DbObject::Ptr DbObject::GetOrCreateByObject(const DynamicObject::Ptr& object)
{
DbObject::Ptr dbobj = static_pointer_cast<DbObject>(object->GetExtension("DbObject"));
if (dbobj)
return dbobj;
DbType::Ptr dbtype = DbType::GetByName(object->GetType()->GetName());
if (!dbtype)
return DbObject::Ptr();
Service::Ptr service;
String name1, name2;
service = dynamic_pointer_cast<Service>(object);
if (service) {
Host::Ptr host = service->GetHost();
if (!host)
return DbObject::Ptr();
name1 = service->GetHost()->GetName();
name2 = service->GetShortName();
} else {
name1 = object->GetName();
}
dbobj = dbtype->GetOrCreateObjectByName(name1, name2);
{
ObjectLock olock(object);
dbobj->SetObject(object);
object->SetExtension("DbObject", dbobj);
}
return dbobj;
}
void IdoPgsqlConnection::Reconnect(void)
{
AssertOnWorkQueue();
CONTEXT("Reconnecting to PostgreSQL IDO database '" + GetName() + "'");
double startTime = Utility::GetTime();
SetShouldConnect(true);
bool reconnect = false;
if (GetConnected()) {
/* Check if we're really still connected */
try {
Query("SELECT 1");
return;
} catch (const std::exception&) {
PQfinish(m_Connection);
SetConnected(false);
reconnect = true;
}
}
ClearIDCache();
String ihost, iport, iuser, ipasswd, idb;
const char *host, *port, *user , *passwd, *db;
ihost = GetHost();
iport = GetPort();
iuser = GetUser();
ipasswd = GetPassword();
idb = GetDatabase();
host = (!ihost.IsEmpty()) ? ihost.CStr() : NULL;
port = (!iport.IsEmpty()) ? iport.CStr() : NULL;
user = (!iuser.IsEmpty()) ? iuser.CStr() : NULL;
passwd = (!ipasswd.IsEmpty()) ? ipasswd.CStr() : NULL;
db = (!idb.IsEmpty()) ? idb.CStr() : NULL;
m_Connection = PQsetdbLogin(host, port, NULL, NULL, db, user, passwd);
if (!m_Connection)
return;
if (PQstatus(m_Connection) != CONNECTION_OK) {
String message = PQerrorMessage(m_Connection);
PQfinish(m_Connection);
SetConnected(false);
Log(LogCritical, "IdoPgsqlConnection")
<< "Connection to database '" << db << "' with user '" << user << "' on '" << host << ":" << port
<< "' failed: \"" << message << "\"";
BOOST_THROW_EXCEPTION(std::runtime_error(message));
}
SetConnected(true);
IdoPgsqlResult result;
/* explicitely require legacy mode for string escaping in PostgreSQL >= 9.1
* changing standard_conforming_strings to on by default
*/
if (PQserverVersion(m_Connection) >= 90100)
result = Query("SET standard_conforming_strings TO off");
String dbVersionName = "idoutils";
result = Query("SELECT version FROM " + GetTablePrefix() + "dbversion WHERE name=E'" + Escape(dbVersionName) + "'");
Dictionary::Ptr row = FetchRow(result, 0);
if (!row) {
PQfinish(m_Connection);
SetConnected(false);
Log(LogCritical, "IdoPgsqlConnection", "Schema does not provide any valid version! Verify your schema installation.");
Application::Exit(EXIT_FAILURE);
}
String version = row->Get("version");
SetSchemaVersion(version);
if (Utility::CompareVersion(IDO_COMPAT_SCHEMA_VERSION, version) < 0) {
PQfinish(m_Connection);
SetConnected(false);
Log(LogCritical, "IdoPgsqlConnection")
<< "Schema version '" << version << "' does not match the required version '"
<< IDO_COMPAT_SCHEMA_VERSION << "' (or newer)! Please check the upgrade documentation.";
Application::Exit(EXIT_FAILURE);
}
String instanceName = GetInstanceName();
result = Query("SELECT instance_id FROM " + GetTablePrefix() + "instances WHERE instance_name = E'" + Escape(instanceName) + "'");
row = FetchRow(result, 0);
if (!row) {
Query("INSERT INTO " + GetTablePrefix() + "instances (instance_name, instance_description) VALUES (E'" + Escape(instanceName) + "', E'" + Escape(GetInstanceDescription()) + "')");
m_InstanceID = GetSequenceValue(GetTablePrefix() + "instances", "instance_id");
} else {
m_InstanceID = DbReference(row->Get("instance_id"));
}
Endpoint::Ptr my_endpoint = Endpoint::GetLocalEndpoint();
/* we have an endpoint in a cluster setup, so decide if we can proceed here */
if (my_endpoint && GetHAMode() == HARunOnce) {
/* get the current endpoint writing to programstatus table */
result = Query("SELECT UNIX_TIMESTAMP(status_update_time) AS status_update_time, endpoint_name FROM " +
GetTablePrefix() + "programstatus WHERE instance_id = " + Convert::ToString(m_InstanceID));
row = FetchRow(result, 0);
String endpoint_name;
if (row)
endpoint_name = row->Get("endpoint_name");
else
Log(LogNotice, "IdoPgsqlConnection", "Empty program status table");
/* if we did not write into the database earlier, another instance is active */
if (endpoint_name != my_endpoint->GetName()) {
double status_update_time;
if (row)
status_update_time = row->Get("status_update_time");
else
status_update_time = 0;
double status_update_age = Utility::GetTime() - status_update_time;
Log(LogNotice, "IdoPgsqlConnection")
<< "Last update by '" << endpoint_name << "' was " << status_update_age << "s ago.";
if (status_update_age < GetFailoverTimeout()) {
PQfinish(m_Connection);
SetConnected(false);
SetShouldConnect(false);
return;
}
/* activate the IDO only, if we're authoritative in this zone */
if (IsPaused()) {
Log(LogNotice, "IdoPgsqlConnection")
<< "Local endpoint '" << my_endpoint->GetName() << "' is not authoritative, bailing out.";
PQfinish(m_Connection);
SetConnected(false);
return;
}
}
Log(LogNotice, "IdoPgsqlConnection", "Enabling IDO connection.");
}
Log(LogInformation, "IdoPgsqlConnection")
<< "pgSQL IDO instance id: " << static_cast<long>(m_InstanceID) << " (schema version: '" + version + "')";
Query("BEGIN");
/* update programstatus table */
UpdateProgramStatus();
/* record connection */
Query("INSERT INTO " + GetTablePrefix() + "conninfo " +
"(instance_id, connect_time, last_checkin_time, agent_name, agent_version, connect_type, data_start_time) VALUES ("
+ Convert::ToString(static_cast<long>(m_InstanceID)) + ", NOW(), NOW(), E'icinga2 db_ido_pgsql', E'" + Escape(Application::GetAppVersion())
+ "', E'" + (reconnect ? "RECONNECT" : "INITIAL") + "', NOW())");
/* clear config tables for the initial config dump */
PrepareDatabase();
std::ostringstream q1buf;
q1buf << "SELECT object_id, objecttype_id, name1, name2, is_active FROM " + GetTablePrefix() + "objects WHERE instance_id = " << static_cast<long>(m_InstanceID);
result = Query(q1buf.str());
std::vector<DbObject::Ptr> activeDbObjs;
int index = 0;
while ((row = FetchRow(result, index))) {
index++;
DbType::Ptr dbtype = DbType::GetByID(row->Get("objecttype_id"));
if (!dbtype)
continue;
DbObject::Ptr dbobj = dbtype->GetOrCreateObjectByName(row->Get("name1"), row->Get("name2"));
SetObjectID(dbobj, DbReference(row->Get("object_id")));
bool active = row->Get("is_active");
SetObjectActive(dbobj, active);
if (active)
activeDbObjs.push_back(dbobj);
}
SetIDCacheValid(true);
EnableActiveChangedHandler();
for (const DbObject::Ptr& dbobj : activeDbObjs) {
if (dbobj->GetObject())
continue;
Log(LogNotice, "IdoPgsqlConnection")
<< "Deactivate deleted object name1: '" << dbobj->GetName1()
<< "' name2: '" << dbobj->GetName2() + "'.";
DeactivateObject(dbobj);
}
UpdateAllObjects();
m_QueryQueue.Enqueue(boost::bind(&IdoPgsqlConnection::ClearTablesBySession, this), PriorityLow);
m_QueryQueue.Enqueue(boost::bind(&IdoPgsqlConnection::FinishConnect, this, startTime), PriorityLow);
}