I am trying to connect my RDS to my phalcon app. I have settings in my security group that allows access to the database from my server and from localhost. Here is some of my code from my index.php file
$config = new Phalcon\Config\Adapter\Ini("../config/config.ini");
$di->set('db', function() use ($config){
try {
$db = new \Phalcon\Db\Adapter\Pdo\Mysql(array(
"host" => $config->development->host,
"username" => $config->development->username,
"password" => $config->development->password,
"dbname" => $config->development->dbname
));
} catch (Exception $e) {
die("<b>Error when initializing database connection:</b> " . $e->getMessage());
}
return $db;
});
Then I try a call to my database in one of my controllers here:
public function indexAction()
{
$users = Users::find();
echo "There are ", count($users), "\n";
}
When I run that controller the page times out and throws this error:
Error when initializing database connection: SQLSTATE[HY000] [2002] Operation timed out
The data in the config file is correct. I am able to connect to it just fine via the terminal. What am I doing wrong? Any thoughts/suggestions/insights? Thanks
Related
I am using Laravel 5.5 with the AWS SDK for laravel (https://github.com/aws/aws-sdk-php-laravel).
I'm trying to do a simple request to establish that I'm connecting correctly. I believe I have my credentials all set and nothing points to that as an error.
Here is the function in my laravel controller that is being called:
public function testData(Request $request) {
$sdk = new Sdk([
'endpoint' => 'http://localhost:80',
'region' => 'us-east-1',
'version' => 'latest'
]);
$dynamodb = $sdk->createDynamoDb();
$marshaler = new Marshaler();
$tableName = 'funTalkDataStorage';
$params = [
'TableName' => $tableName
];
try {
$result = $dynamodb->query($params);
} catch (DynamoDbException $e) {
echo "Unable to query:\n";
echo $e->getMessage() . "\n";
}
}
The table 'funTalkDataStorage' does exist out on AWS already where there are two records already.
The thing that I'm not understanding is why I'm getting the following error from Laravel:
Aws \ Api \ Parser \ Exception \ ParserException
Error parsing JSON: Syntax error
being thrown by :
aws\aws-sdk-php\src\Api\Parser\PayloadParserTrait.php
The error is originating from the line in my code:
$result = $dynamodb->query($params);
I've been digging through the sdk and searching the web and I'm just not getting where the issue is. Any help would be marvalous!
Ok. My issue was that i was using port 80. It should have been port 8000.
I am able to login to mongo using the following command:
mongo host_name:port/admin -u 'USERNAME' -p 'PASSWORD'
For PHP I tried below code to connect to mongo:
try{
$m = new MongoClient("mongodb://USERNAME:PASSWORD#host_name:27017");
echo "Connection to database successfully";
}
catch(Exception $ex)
{
echo '<pre>'; print_r($ex->getMessage());
}
But it is not connecting. Gives following error:
Failed to connect to: 10.7.0.225:27017: Authentication failed on database 'admin' with username 'USERNAME': auth failed
I have already created user root with role as root.
Any help would be appreciable. Thanks!
Hi I have a php daemon that handle request from rabbitmq
After a day, it can no longer execute due to error MySQL has gone away.
PHP Warning: PDOStatement::execute(): MySQL server has gone away in /var/www/daemon/www/vendor/zendframework/zendframework/library/Zend/Db/Adapter/Driver/Pdo/Statement.php on line 239
PHP Warning: PDOStatement::execute(): Error reading result set\'s header in /var/www/daemon/www/vendor/zendframework/zendframework/library/Zend/Db/Adapter/Driver/Pdo/Statement.php on line 239
I didn't use doctrine, instead I send my \Zend\Db\Adapter\Adapter to a db wrapper class with below function.
public static function executeScalar($statement, $parameters, \Zend\Db\Adapter\Adapter $dbAdapter)
{
$dbResult = new DbResult();
if (! $statement) {
$dbResult->addError('No statement given');
return $dbResult;
}
$stmt = $dbAdapter->createStatement();
$stmt->prepare($statement);
foreach ($parameters as $key => &$param) {
$stmt->getResource()->bindParam($key + 1, $param[0], $param[1]);
}
try {
$result = $stmt->execute();
$dbResult->setResult($result);
} catch (\Zend\Db\Adapter\ExceptionInterface $e) {
$dbResult->addError('DB Error');
$message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e->getMessage();
$dbResult->addError($message);
} catch (\Zend\Db\Adapter\Exception $e) {
$dbResult->addError('DB Error');
$dbResult->addError($e->getMessage());
} catch (\PDOException $e) {
$dbResult->addError('DB Error');
$dbResult->addError($e->getMessage());
} catch (\Exception $e) {
$dbResult->addError('DB Error');
$dbResult->addError($e->getMessage());
}
$stmt->getResource()->closeCursor();
return $dbResult;
}
DbResult is my own db result wrapper class it mainly check whether it return empty, what's the error, how many rows, etc.
Here is my database.local.php configuration
return array(
'service_manager' => array(
'factories' => array(
'mysql' => function ($sm)
{
return new Zend\Db\Adapter\Adapter(array(
'driver' => 'PdoMysql',
'hostname' => 'localhost',
'database' => 'daemon',
'username' => 'daemon',
'password' => 'password',
'driver_options' => array(
\PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\'',
\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
\PDO::ATTR_EMULATE_PREPARES => true,
\PDO::MYSQL_ATTR_LOCAL_INFILE => true
)
));
},
)
)
)
So everytime I want to execute a sql I do this inside controller or any other class ( Just an example )
$service = $this->getServiceLocator();
$dbAdapter = $service->get('mysql');
$get = \Db\Database::executeScalar('SELECT * FROM mytable WHERE id <= ?', array(10), $dbAdapter);
It seems I cannot catch the warning, and is there a way to force reconnect or perhaps I just do a disconnect after each request ?
Will this works, to handle the error ?
On every new request I do this
$dbAdapter->getDriver()->getConnection()->connect();
At the end of request I do this
$dbAdapter->getDriver()->getConnection()->disconnect();
Yes, I check the persistent connection option, but I also not fond of it.
I find the problem, it cause by mysql server close idle connection after 'wait timeout'. when mysql closing the idle connection, PDO will not receive any event so the next time you initiate a query it will return Mysql has gone away error.
For http request this is acceptable since after the server response the request it will stop/exit php execution which close all connection to database.
For daemon/service this is not acceptable since most of the time it waiting for client request (idle). My solution is to close the connection everytime it finish handling client request. e.g :
while (true) {
//listen to rabbitmq queue
//...
//do something base on client request from rabbitmq queue
//...
//close the connection whether it use database or not
//connection will be reconnected when we call $service->get('mysql');
$service = $this->getServiceLocator();
$dbAdapter = $service->get('mysql');
$dbAdapter->getDriver()->getConnection()->disconnect();
}
You can create a persistent connection to your database but be warned that creating a persistent connection should not be the first solution to look for. Be sure to do some research on the subject before trying it. You can find some documentation here :
http://php.net/manual/en/pdo.connections.php#example-954
On the other hand, you should look for the queries sent so the reason of the gone away message is not caused by the mysql server recieving a packet too large (ex: inserting a large blob). Because if it is, the connection will still close unexpectedly.
I installed mongo 3.0.0 on my ubuntu server.
I tried to use PHP (with appropriate lib installed) to connect to mongo to learn sth new. Unfortunaltey I cannot go any further.
My user configuration looks like this:
> use testdb
switched to db testdb
> show users
{
"_id" : "testdb.testdb",
"user" : "testdb",
"db" : "testdb",
"roles" : [
{
"role" : "readWrite",
"db" : "testdb"
}
]
}
Then I try to execute the following PHP code:
try{
$uri = "mongodb://testdb:password#xxx.xxx.xxx.xxx:27017/testdb";
$options = array("connectTimeoutMS" => 30000);
$client = new MongoClient($uri, $options );
}
catch(Exception $e) {
echo 'Message: ' .$e->getMessage();
die();
}
$db = $client->selectDB("testdb");
I get "Message: Failed to connect to: xxx.xxx.xxx.xxx:27017: Authentication failed on database 'testdb' with username 'testdb': auth failed".
In /etc/mongod.conf I have "auth = true" uncommented
I also verified the conncetion with:
> nc -w 3 -v xxx.xxx.xxx.xxx 27017 Connection to xxx.xxx.xxx.xxx 27017
> port [tcp/*] succeeded!
I dig through Internet, i spent few hours already on this, I even re-installed mongo and set everything up again without any success.
Could you point to where to look for solution?
The authentication schema of 3.0 is not compatible with 2.x drivers. One way you should be able to make it work is by downgrading the authentication mechanism:
use "admin"
var schema = db.system.version.findOne({"_id" : "authSchema"})
schema.currentVersion = 3
db.system.version.save(schema)
Then create a user and you should be able to connect with it.
When I try to connect my parse cloud it shows an error
the username XYZ already taken
I have tried this code:
public function setUp() {
$this->parseUser = new parseUser;
$this->testUser = array(
'username' => 'XYZ',
'password' => '*******',
'email' => 'abc#mail.com',
'customField' => 'customValue'
);
}
my parseconfig.php file look like this
class parseConfig {
const APPID = 'kS131sdje....';
const MASTERKEY = 'w1d...';
const RESTKEY = 'o16r...';
const PARSEURL = 'https://api.parse.com/1/';
}
Can you help me? Is it trying to SignUp instead of Signin?
I downloaded this code from the link below and am trying to connect it to my Parse.com cloud
https://github.com/apotropaic/parse.com-php-library
You should check out the Parse documentation for PHP for user operations.
Here are two examples for signup and signin:
Registration:
$user = new ParseUser();
$user->set("username", "my name");
$user->set("password", "my pass");
$user->set("email", "email#example.com");
// other fields can be set just like with ParseObject
$user->set("phone", "415-392-0202");
try {
$user->signUp();
// Hooray! Let them use the app now.
} catch (ParseException $ex) {
// Show the error message somewhere and let the user try again.
echo "Error: " . $ex->getCode() . " " . $ex->getMessage();
}
Login:
try {
$user = ParseUser::logIn("myname", "mypass");
// Do stuff after successful login.
} catch (ParseException $error) {
// The login failed. Check error to see why.
}