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PDOException Exception DriverException

HTTP 500 Internal Server Error

An exception occurred in the driver: SQLSTATE[08004] [1040] Too many connections

Exceptions 3

Doctrine\DBAL\Exception\ DriverException

in vendor/doctrine/dbal/src/Driver/API/MySQL/ExceptionConverter.php (line 117)

case 1364:
case 1566:
return new NotNullConstraintViolationException($exception, $query);
}
return new DriverException($exception, $query);
}
}

in vendor/doctrine/dbal/src/Connection.php -> convert (line 1943)

private function handleDriverException(
Driver\Exception $driverException,
?Query $query
): DriverException {
$this->exceptionConverter ??= $this->_driver->getExceptionConverter();
$exception = $this->exceptionConverter->convert($driverException, $query);
if ($exception instanceof ConnectionLost) {
$this->close();
}

in vendor/doctrine/dbal/src/Connection.php -> handleDriverException (line 1891)

}
/** @internal */
final public function convertException(Driver\Exception $e): DriverException
{
return $this->handleDriverException($e, null);
}
/**
* @param array<int, mixed>|array<string, mixed> $params
* @param array<int, int|string|Type|null>|array<string, int|string|Type|null> $types

in vendor/doctrine/dbal/src/Connection.php -> convertException (line 380)

}
try {
$this->_conn = $this->_driver->connect($this->params);
} catch (Driver\Exception $e) {
throw $this->convertException($e);
}
if ($this->autoCommit === false) {
$this->beginTransaction();
}

in vendor/doctrine/dbal/src/Connection.php -> connect (line 1659)

'https://github.com/doctrine/dbal/issues/4966',
'Connection::getWrappedConnection() is deprecated.'
. ' Use Connection::getNativeConnection() to access the native connection.',
);
$this->connect();
return $this->_conn;
}
/** @return resource|object */

in vendor/doctrine/dbal/src/Connection.php -> getWrappedConnection (line 1082)

): Result {
if ($qcp !== null) {
return $this->executeCacheQuery($sql, $params, $types, $qcp);
}
$connection = $this->getWrappedConnection();
$logger = $this->_config->getSQLLogger();
if ($logger !== null) {
$logger->startQuery($sql, $params, $types);
}

in vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php -> executeQuery (line 776)

{
$this->switchPersisterContext(null, $limit);
$sql = $this->getSelectSQL($criteria, $assoc, $lockMode, $limit, null, $orderBy);
[$params, $types] = $this->expandParameters($criteria);
$stmt = $this->conn->executeQuery($sql, $params, $types);
if ($entity !== null) {
$hints[Query::HINT_REFRESH] = true;
$hints[Query::HINT_REFRESH_ENTITY] = $entity;
}

in vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php -> load (line 794)

/**
* {@inheritDoc}
*/
public function loadById(array $identifier, $entity = null)
{
return $this->load($identifier, $entity);
}
/**
* {@inheritDoc}
*/

in vendor/doctrine/orm/src/EntityManager.php -> loadById (line 521)

case $lockMode === LockMode::PESSIMISTIC_READ:
case $lockMode === LockMode::PESSIMISTIC_WRITE:
return $persister->load($sortedId, null, null, [], $lockMode);
default:
return $persister->loadById($sortedId);
}
}
/**
* {@inheritDoc}

in var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php -> find (line 143)

public function find($className, $id, $lockMode = null, $lockVersion = null)
{
$this->initializer272b7 && ($this->initializer272b7->__invoke($valueHolderf992b, $this, 'find', array('className' => $className, 'id' => $id, 'lockMode' => $lockMode, 'lockVersion' => $lockVersion), $this->initializer272b7) || 1) && $this->valueHolderf992b = $valueHolderf992b;
return $this->valueHolderf992b->find($className, $id, $lockMode, $lockVersion);
}
public function getReference($entityName, $id)
{
$this->initializer272b7 && ($this->initializer272b7->__invoke($valueHolderf992b, $this, 'getReference', array('entityName' => $entityName, 'id' => $id), $this->initializer272b7) || 1) && $this->valueHolderf992b = $valueHolderf992b;

in vendor/doctrine/orm/src/EntityRepository.php -> find (line 197)

* @return object|null The entity instance or NULL if the entity can not be found.
* @psalm-return ?T
*/
public function find($id, $lockMode = null, $lockVersion = null)
{
return $this->_em->find($this->_entityName, $id, $lockMode, $lockVersion);
}
/**
* Finds all entities in the repository.
*

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php -> find (line 142)

$cacheProvider->evictEntity($class, $id);
}
}
try {
return $om->getRepository($class)->$method($id);
} catch (NoResultException $e) {
return;
} catch (ConversionException $e) {
return;
}

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php -> find (line 91)

if (null === $object) {
$errorMessage = sprintf('The expression "%s" returned null', $expr);
}
// find by identifier?
} elseif (false === $object = $this->find($class, $request, $options, $name)) {
// find by criteria
if (false === $object = $this->findOneBy($class, $request, $options)) {
if ($configuration->isOptional()) {
$object = null;
} else {

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php -> apply (line 84)

return;
}
foreach ($this->all() as $converter) {
if ($converter->supports($configuration)) {
if ($converter->apply($request, $configuration)) {
return;
}
}
}
}

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php -> applyConverter (line 48)

if (\is_object($configurations)) {
$configurations = [$configurations];
}
foreach ($configurations as $configuration) {
$this->applyConverter($request, $configuration);
}
}
/**
* Applies converter on request based on the given configuration.

in vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php -> apply (line 72)

}
$configurations = $this->autoConfigure($r, $request, $configurations);
}
$this->manager->apply($request, $configurations);
}
private function autoConfigure(\ReflectionFunctionAbstract $r, Request $request, $configurations)
{
foreach ($r->getParameters() as $param) {

in vendor/symfony/event-dispatcher/Debug/WrappedListener.php -> onKernelController (line 118)

$this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
$e = $this->stopwatch->start($this->name, 'event_listener');
try {
($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
} finally {
if ($e->isStarted()) {
$e->stop();
}
}

in vendor/symfony/event-dispatcher/EventDispatcher.php -> __invoke (line 230)

foreach ($listeners as $listener) {
if ($stoppable && $event->isPropagationStopped()) {
break;
}
$listener($event, $eventName, $this);
}
}
/**
* Sorts the internal list of listeners for the given event by priority.

in vendor/symfony/event-dispatcher/EventDispatcher.php -> callListeners (line 59)

} else {
$listeners = $this->getListeners($eventName);
}
if ($listeners) {
$this->callListeners($listeners, $eventName, $event);
}
return $event;
}

in vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php -> dispatch (line 154)

try {
$this->beforeDispatch($eventName, $event);
try {
$e = $this->stopwatch->start($eventName, 'section');
try {
$this->dispatcher->dispatch($event, $eventName);
} finally {
if ($e->isStarted()) {
$e->stop();
}
}

in vendor/symfony/http-kernel/HttpKernel.php -> dispatch (line 151)

if (false === $controller = $this->resolver->getController($request)) {
throw new NotFoundHttpException(sprintf('Unable to find the controller for path "%s". The route is wrongly configured.', $request->getPathInfo()));
}
$event = new ControllerEvent($this, $controller, $request, $type);
$this->dispatcher->dispatch($event, KernelEvents::CONTROLLER);
$controller = $event->getController();
// controller arguments
$arguments = $this->argumentResolver->getArguments($request, $controller);

in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 75)

{
$request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
$this->requestStack->push($request);
try {
return $this->handleRaw($request, $type);
} catch (\Exception $e) {
if ($e instanceof RequestExceptionInterface) {
$e = new BadRequestHttpException($e->getMessage(), $e);
}
if (false === $catch) {

in vendor/symfony/http-kernel/Kernel.php -> handle (line 202)

$this->boot();
++$this->requestStackSize;
$this->resetServices = true;
try {
return $this->getHttpKernel()->handle($request, $type, $catch);
} finally {
--$this->requestStackSize;
}
}

in vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php -> handle (line 35)

$this->request = $request;
}
public function run(): int
{
$response = $this->kernel->handle($this->request);
$response->send();
if ($this->kernel instanceof TerminableInterface) {
$this->kernel->terminate($this->request, $response);
}

in vendor/autoload_runtime.php -> run (line 35)

$app = $app(...$args);
exit(
$runtime
->getRunner($app)
->run()
);

require_once('/home/projects/pms/vendor/autoload_runtime.php') in public/index.php (line 5)

<?php
use App\Kernel;
require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
return function (array $context) {
return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
};

Doctrine\DBAL\Driver\PDO\ Exception

SQLSTATE[08004] [1040] Too many connections

in vendor/doctrine/dbal/src/Driver/PDO/Exception.php (line 28)

} else {
$code = $exception->getCode();
$sqlState = null;
}
return new self($exception->getMessage(), $sqlState, $code, $exception);
}
}

in vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php :: new (line 40)

$params['user'] ?? '',
$params['password'] ?? '',
$driverOptions,
);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
return new Connection($pdo);
}

in vendor/doctrine/dbal/src/Driver/Middleware/AbstractDriverMiddleware.php -> connect (line 29)

*/
public function connect(
#[SensitiveParameter]
array $params
) {
return $this->wrappedDriver->connect($params);
}
/**
* {@inheritDoc}
*/

in vendor/symfony/doctrine-bridge/Middleware/Debug/Driver.php -> connect (line 41)

$this->connectionName = $connectionName;
}
public function connect(array $params): ConnectionInterface
{
$connection = parent::connect($params);
if ('void' !== (string) (new \ReflectionMethod(DriverInterface\Connection::class, 'commit'))->getReturnType()) {
return new DBAL3\Connection(
$connection,
$this->debugDataHolder,

in vendor/doctrine/dbal/src/Connection.php -> connect (line 378)

if ($this->_conn !== null) {
return false;
}
try {
$this->_conn = $this->_driver->connect($this->params);
} catch (Driver\Exception $e) {
throw $this->convertException($e);
}
if ($this->autoCommit === false) {

in vendor/doctrine/dbal/src/Connection.php -> connect (line 1659)

'https://github.com/doctrine/dbal/issues/4966',
'Connection::getWrappedConnection() is deprecated.'
. ' Use Connection::getNativeConnection() to access the native connection.',
);
$this->connect();
return $this->_conn;
}
/** @return resource|object */

in vendor/doctrine/dbal/src/Connection.php -> getWrappedConnection (line 1082)

): Result {
if ($qcp !== null) {
return $this->executeCacheQuery($sql, $params, $types, $qcp);
}
$connection = $this->getWrappedConnection();
$logger = $this->_config->getSQLLogger();
if ($logger !== null) {
$logger->startQuery($sql, $params, $types);
}

in vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php -> executeQuery (line 776)

{
$this->switchPersisterContext(null, $limit);
$sql = $this->getSelectSQL($criteria, $assoc, $lockMode, $limit, null, $orderBy);
[$params, $types] = $this->expandParameters($criteria);
$stmt = $this->conn->executeQuery($sql, $params, $types);
if ($entity !== null) {
$hints[Query::HINT_REFRESH] = true;
$hints[Query::HINT_REFRESH_ENTITY] = $entity;
}

in vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php -> load (line 794)

/**
* {@inheritDoc}
*/
public function loadById(array $identifier, $entity = null)
{
return $this->load($identifier, $entity);
}
/**
* {@inheritDoc}
*/

in vendor/doctrine/orm/src/EntityManager.php -> loadById (line 521)

case $lockMode === LockMode::PESSIMISTIC_READ:
case $lockMode === LockMode::PESSIMISTIC_WRITE:
return $persister->load($sortedId, null, null, [], $lockMode);
default:
return $persister->loadById($sortedId);
}
}
/**
* {@inheritDoc}

in var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php -> find (line 143)

public function find($className, $id, $lockMode = null, $lockVersion = null)
{
$this->initializer272b7 && ($this->initializer272b7->__invoke($valueHolderf992b, $this, 'find', array('className' => $className, 'id' => $id, 'lockMode' => $lockMode, 'lockVersion' => $lockVersion), $this->initializer272b7) || 1) && $this->valueHolderf992b = $valueHolderf992b;
return $this->valueHolderf992b->find($className, $id, $lockMode, $lockVersion);
}
public function getReference($entityName, $id)
{
$this->initializer272b7 && ($this->initializer272b7->__invoke($valueHolderf992b, $this, 'getReference', array('entityName' => $entityName, 'id' => $id), $this->initializer272b7) || 1) && $this->valueHolderf992b = $valueHolderf992b;

in vendor/doctrine/orm/src/EntityRepository.php -> find (line 197)

* @return object|null The entity instance or NULL if the entity can not be found.
* @psalm-return ?T
*/
public function find($id, $lockMode = null, $lockVersion = null)
{
return $this->_em->find($this->_entityName, $id, $lockMode, $lockVersion);
}
/**
* Finds all entities in the repository.
*

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php -> find (line 142)

$cacheProvider->evictEntity($class, $id);
}
}
try {
return $om->getRepository($class)->$method($id);
} catch (NoResultException $e) {
return;
} catch (ConversionException $e) {
return;
}

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php -> find (line 91)

if (null === $object) {
$errorMessage = sprintf('The expression "%s" returned null', $expr);
}
// find by identifier?
} elseif (false === $object = $this->find($class, $request, $options, $name)) {
// find by criteria
if (false === $object = $this->findOneBy($class, $request, $options)) {
if ($configuration->isOptional()) {
$object = null;
} else {

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php -> apply (line 84)

return;
}
foreach ($this->all() as $converter) {
if ($converter->supports($configuration)) {
if ($converter->apply($request, $configuration)) {
return;
}
}
}
}

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php -> applyConverter (line 48)

if (\is_object($configurations)) {
$configurations = [$configurations];
}
foreach ($configurations as $configuration) {
$this->applyConverter($request, $configuration);
}
}
/**
* Applies converter on request based on the given configuration.

in vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php -> apply (line 72)

}
$configurations = $this->autoConfigure($r, $request, $configurations);
}
$this->manager->apply($request, $configurations);
}
private function autoConfigure(\ReflectionFunctionAbstract $r, Request $request, $configurations)
{
foreach ($r->getParameters() as $param) {

in vendor/symfony/event-dispatcher/Debug/WrappedListener.php -> onKernelController (line 118)

$this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
$e = $this->stopwatch->start($this->name, 'event_listener');
try {
($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
} finally {
if ($e->isStarted()) {
$e->stop();
}
}

in vendor/symfony/event-dispatcher/EventDispatcher.php -> __invoke (line 230)

foreach ($listeners as $listener) {
if ($stoppable && $event->isPropagationStopped()) {
break;
}
$listener($event, $eventName, $this);
}
}
/**
* Sorts the internal list of listeners for the given event by priority.

in vendor/symfony/event-dispatcher/EventDispatcher.php -> callListeners (line 59)

} else {
$listeners = $this->getListeners($eventName);
}
if ($listeners) {
$this->callListeners($listeners, $eventName, $event);
}
return $event;
}

in vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php -> dispatch (line 154)

try {
$this->beforeDispatch($eventName, $event);
try {
$e = $this->stopwatch->start($eventName, 'section');
try {
$this->dispatcher->dispatch($event, $eventName);
} finally {
if ($e->isStarted()) {
$e->stop();
}
}

in vendor/symfony/http-kernel/HttpKernel.php -> dispatch (line 151)

if (false === $controller = $this->resolver->getController($request)) {
throw new NotFoundHttpException(sprintf('Unable to find the controller for path "%s". The route is wrongly configured.', $request->getPathInfo()));
}
$event = new ControllerEvent($this, $controller, $request, $type);
$this->dispatcher->dispatch($event, KernelEvents::CONTROLLER);
$controller = $event->getController();
// controller arguments
$arguments = $this->argumentResolver->getArguments($request, $controller);

in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 75)

{
$request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
$this->requestStack->push($request);
try {
return $this->handleRaw($request, $type);
} catch (\Exception $e) {
if ($e instanceof RequestExceptionInterface) {
$e = new BadRequestHttpException($e->getMessage(), $e);
}
if (false === $catch) {

in vendor/symfony/http-kernel/Kernel.php -> handle (line 202)

$this->boot();
++$this->requestStackSize;
$this->resetServices = true;
try {
return $this->getHttpKernel()->handle($request, $type, $catch);
} finally {
--$this->requestStackSize;
}
}

in vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php -> handle (line 35)

$this->request = $request;
}
public function run(): int
{
$response = $this->kernel->handle($this->request);
$response->send();
if ($this->kernel instanceof TerminableInterface) {
$this->kernel->terminate($this->request, $response);
}

in vendor/autoload_runtime.php -> run (line 35)

$app = $app(...$args);
exit(
$runtime
->getRunner($app)
->run()
);

require_once('/home/projects/pms/vendor/autoload_runtime.php') in public/index.php (line 5)

<?php
use App\Kernel;
require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
return function (array $context) {
return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
};

PDOException

SQLSTATE[08004] [1040] Too many connections

in vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php (line 34)

$safeParams = $params;
unset($safeParams['password'], $safeParams['url']);
try {
$pdo = new PDO(
$this->constructPdoDsn($safeParams),
$params['user'] ?? '',
$params['password'] ?? '',
$driverOptions,
);
} catch (PDOException $exception) {

in vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php -> __construct (line 34)

$safeParams = $params;
unset($safeParams['password'], $safeParams['url']);
try {
$pdo = new PDO(
$this->constructPdoDsn($safeParams),
$params['user'] ?? '',
$params['password'] ?? '',
$driverOptions,
);
} catch (PDOException $exception) {

in vendor/doctrine/dbal/src/Driver/Middleware/AbstractDriverMiddleware.php -> connect (line 29)

*/
public function connect(
#[SensitiveParameter]
array $params
) {
return $this->wrappedDriver->connect($params);
}
/**
* {@inheritDoc}
*/

in vendor/symfony/doctrine-bridge/Middleware/Debug/Driver.php -> connect (line 41)

$this->connectionName = $connectionName;
}
public function connect(array $params): ConnectionInterface
{
$connection = parent::connect($params);
if ('void' !== (string) (new \ReflectionMethod(DriverInterface\Connection::class, 'commit'))->getReturnType()) {
return new DBAL3\Connection(
$connection,
$this->debugDataHolder,

in vendor/doctrine/dbal/src/Connection.php -> connect (line 378)

if ($this->_conn !== null) {
return false;
}
try {
$this->_conn = $this->_driver->connect($this->params);
} catch (Driver\Exception $e) {
throw $this->convertException($e);
}
if ($this->autoCommit === false) {

in vendor/doctrine/dbal/src/Connection.php -> connect (line 1659)

'https://github.com/doctrine/dbal/issues/4966',
'Connection::getWrappedConnection() is deprecated.'
. ' Use Connection::getNativeConnection() to access the native connection.',
);
$this->connect();
return $this->_conn;
}
/** @return resource|object */

in vendor/doctrine/dbal/src/Connection.php -> getWrappedConnection (line 1082)

): Result {
if ($qcp !== null) {
return $this->executeCacheQuery($sql, $params, $types, $qcp);
}
$connection = $this->getWrappedConnection();
$logger = $this->_config->getSQLLogger();
if ($logger !== null) {
$logger->startQuery($sql, $params, $types);
}

in vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php -> executeQuery (line 776)

{
$this->switchPersisterContext(null, $limit);
$sql = $this->getSelectSQL($criteria, $assoc, $lockMode, $limit, null, $orderBy);
[$params, $types] = $this->expandParameters($criteria);
$stmt = $this->conn->executeQuery($sql, $params, $types);
if ($entity !== null) {
$hints[Query::HINT_REFRESH] = true;
$hints[Query::HINT_REFRESH_ENTITY] = $entity;
}

in vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php -> load (line 794)

/**
* {@inheritDoc}
*/
public function loadById(array $identifier, $entity = null)
{
return $this->load($identifier, $entity);
}
/**
* {@inheritDoc}
*/

in vendor/doctrine/orm/src/EntityManager.php -> loadById (line 521)

case $lockMode === LockMode::PESSIMISTIC_READ:
case $lockMode === LockMode::PESSIMISTIC_WRITE:
return $persister->load($sortedId, null, null, [], $lockMode);
default:
return $persister->loadById($sortedId);
}
}
/**
* {@inheritDoc}

in var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php -> find (line 143)

public function find($className, $id, $lockMode = null, $lockVersion = null)
{
$this->initializer272b7 && ($this->initializer272b7->__invoke($valueHolderf992b, $this, 'find', array('className' => $className, 'id' => $id, 'lockMode' => $lockMode, 'lockVersion' => $lockVersion), $this->initializer272b7) || 1) && $this->valueHolderf992b = $valueHolderf992b;
return $this->valueHolderf992b->find($className, $id, $lockMode, $lockVersion);
}
public function getReference($entityName, $id)
{
$this->initializer272b7 && ($this->initializer272b7->__invoke($valueHolderf992b, $this, 'getReference', array('entityName' => $entityName, 'id' => $id), $this->initializer272b7) || 1) && $this->valueHolderf992b = $valueHolderf992b;

in vendor/doctrine/orm/src/EntityRepository.php -> find (line 197)

* @return object|null The entity instance or NULL if the entity can not be found.
* @psalm-return ?T
*/
public function find($id, $lockMode = null, $lockVersion = null)
{
return $this->_em->find($this->_entityName, $id, $lockMode, $lockVersion);
}
/**
* Finds all entities in the repository.
*

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php -> find (line 142)

$cacheProvider->evictEntity($class, $id);
}
}
try {
return $om->getRepository($class)->$method($id);
} catch (NoResultException $e) {
return;
} catch (ConversionException $e) {
return;
}

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php -> find (line 91)

if (null === $object) {
$errorMessage = sprintf('The expression "%s" returned null', $expr);
}
// find by identifier?
} elseif (false === $object = $this->find($class, $request, $options, $name)) {
// find by criteria
if (false === $object = $this->findOneBy($class, $request, $options)) {
if ($configuration->isOptional()) {
$object = null;
} else {

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php -> apply (line 84)

return;
}
foreach ($this->all() as $converter) {
if ($converter->supports($configuration)) {
if ($converter->apply($request, $configuration)) {
return;
}
}
}
}

in vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php -> applyConverter (line 48)

if (\is_object($configurations)) {
$configurations = [$configurations];
}
foreach ($configurations as $configuration) {
$this->applyConverter($request, $configuration);
}
}
/**
* Applies converter on request based on the given configuration.

in vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php -> apply (line 72)

}
$configurations = $this->autoConfigure($r, $request, $configurations);
}
$this->manager->apply($request, $configurations);
}
private function autoConfigure(\ReflectionFunctionAbstract $r, Request $request, $configurations)
{
foreach ($r->getParameters() as $param) {

in vendor/symfony/event-dispatcher/Debug/WrappedListener.php -> onKernelController (line 118)

$this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
$e = $this->stopwatch->start($this->name, 'event_listener');
try {
($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
} finally {
if ($e->isStarted()) {
$e->stop();
}
}

in vendor/symfony/event-dispatcher/EventDispatcher.php -> __invoke (line 230)

foreach ($listeners as $listener) {
if ($stoppable && $event->isPropagationStopped()) {
break;
}
$listener($event, $eventName, $this);
}
}
/**
* Sorts the internal list of listeners for the given event by priority.

in vendor/symfony/event-dispatcher/EventDispatcher.php -> callListeners (line 59)

} else {
$listeners = $this->getListeners($eventName);
}
if ($listeners) {
$this->callListeners($listeners, $eventName, $event);
}
return $event;
}

in vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php -> dispatch (line 154)

try {
$this->beforeDispatch($eventName, $event);
try {
$e = $this->stopwatch->start($eventName, 'section');
try {
$this->dispatcher->dispatch($event, $eventName);
} finally {
if ($e->isStarted()) {
$e->stop();
}
}

in vendor/symfony/http-kernel/HttpKernel.php -> dispatch (line 151)

if (false === $controller = $this->resolver->getController($request)) {
throw new NotFoundHttpException(sprintf('Unable to find the controller for path "%s". The route is wrongly configured.', $request->getPathInfo()));
}
$event = new ControllerEvent($this, $controller, $request, $type);
$this->dispatcher->dispatch($event, KernelEvents::CONTROLLER);
$controller = $event->getController();
// controller arguments
$arguments = $this->argumentResolver->getArguments($request, $controller);

in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 75)

{
$request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
$this->requestStack->push($request);
try {
return $this->handleRaw($request, $type);
} catch (\Exception $e) {
if ($e instanceof RequestExceptionInterface) {
$e = new BadRequestHttpException($e->getMessage(), $e);
}
if (false === $catch) {

in vendor/symfony/http-kernel/Kernel.php -> handle (line 202)

$this->boot();
++$this->requestStackSize;
$this->resetServices = true;
try {
return $this->getHttpKernel()->handle($request, $type, $catch);
} finally {
--$this->requestStackSize;
}
}

in vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php -> handle (line 35)

$this->request = $request;
}
public function run(): int
{
$response = $this->kernel->handle($this->request);
$response->send();
if ($this->kernel instanceof TerminableInterface) {
$this->kernel->terminate($this->request, $response);
}

in vendor/autoload_runtime.php -> run (line 35)

$app = $app(...$args);
exit(
$runtime
->getRunner($app)
->run()
);

require_once('/home/projects/pms/vendor/autoload_runtime.php') in public/index.php (line 5)

<?php
use App\Kernel;
require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
return function (array $context) {
return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
};

Stack Traces 3

[3/3] DriverException
Doctrine\DBAL\Exception\DriverException: An exception occurred in the driver: SQLSTATE[08004] [1040] Too many connections at vendor/doctrine/dbal/src/Driver/API/MySQL/ExceptionConverter.php:117 at Doctrine\DBAL\Driver\API\MySQL\ExceptionConverter->convert() (vendor/doctrine/dbal/src/Connection.php:1943) at Doctrine\DBAL\Connection->handleDriverException() (vendor/doctrine/dbal/src/Connection.php:1891) at Doctrine\DBAL\Connection->convertException() (vendor/doctrine/dbal/src/Connection.php:380) at Doctrine\DBAL\Connection->connect() (vendor/doctrine/dbal/src/Connection.php:1659) at Doctrine\DBAL\Connection->getWrappedConnection() (vendor/doctrine/dbal/src/Connection.php:1082) at Doctrine\DBAL\Connection->executeQuery() (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:776) at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->load() (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:794) at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadById() (vendor/doctrine/orm/src/EntityManager.php:521) at Doctrine\ORM\EntityManager->find() (var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php:143) at ContainerBykbw1h\EntityManager_9a5be93->find() (vendor/doctrine/orm/src/EntityRepository.php:197) at Doctrine\ORM\EntityRepository->find() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:142) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->find() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:91) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->apply() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:84) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->applyConverter() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:48) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->apply() (vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php:72) at Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener->onKernelController() (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:118) at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke() (vendor/symfony/event-dispatcher/EventDispatcher.php:230) at Symfony\Component\EventDispatcher\EventDispatcher->callListeners() (vendor/symfony/event-dispatcher/EventDispatcher.php:59) at Symfony\Component\EventDispatcher\EventDispatcher->dispatch() (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:154) at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch() (vendor/symfony/http-kernel/HttpKernel.php:151) at Symfony\Component\HttpKernel\HttpKernel->handleRaw() (vendor/symfony/http-kernel/HttpKernel.php:75) at Symfony\Component\HttpKernel\HttpKernel->handle() (vendor/symfony/http-kernel/Kernel.php:202) at Symfony\Component\HttpKernel\Kernel->handle() (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35) at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run() (vendor/autoload_runtime.php:35) at require_once('/home/projects/pms/vendor/autoload_runtime.php') (public/index.php:5)

[3/3] DriverException

Doctrine\DBAL\Exception\DriverException:
An exception occurred in the driver: SQLSTATE[08004] [1040] Too many connections

  at vendor/doctrine/dbal/src/Driver/API/MySQL/ExceptionConverter.php:117
  at Doctrine\DBAL\Driver\API\MySQL\ExceptionConverter->convert()
     (vendor/doctrine/dbal/src/Connection.php:1943)
  at Doctrine\DBAL\Connection->handleDriverException()
     (vendor/doctrine/dbal/src/Connection.php:1891)
  at Doctrine\DBAL\Connection->convertException()
     (vendor/doctrine/dbal/src/Connection.php:380)
  at Doctrine\DBAL\Connection->connect()
     (vendor/doctrine/dbal/src/Connection.php:1659)
  at Doctrine\DBAL\Connection->getWrappedConnection()
     (vendor/doctrine/dbal/src/Connection.php:1082)
  at Doctrine\DBAL\Connection->executeQuery()
     (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:776)
  at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->load()
     (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:794)
  at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadById()
     (vendor/doctrine/orm/src/EntityManager.php:521)
  at Doctrine\ORM\EntityManager->find()
     (var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php:143)
  at ContainerBykbw1h\EntityManager_9a5be93->find()
     (vendor/doctrine/orm/src/EntityRepository.php:197)
  at Doctrine\ORM\EntityRepository->find()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:142)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->find()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:91)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->apply()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:84)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->applyConverter()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:48)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->apply()
     (vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php:72)
  at Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener->onKernelController()
     (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:118)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:230)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:59)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:154)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (vendor/symfony/http-kernel/HttpKernel.php:151)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (vendor/symfony/http-kernel/HttpKernel.php:75)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:202)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:35)
  at require_once('/home/projects/pms/vendor/autoload_runtime.php')
     (public/index.php:5)

[2/3] Exception
Doctrine\DBAL\Driver\PDO\Exception: SQLSTATE[08004] [1040] Too many connections at vendor/doctrine/dbal/src/Driver/PDO/Exception.php:28 at Doctrine\DBAL\Driver\PDO\Exception::new() (vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php:40) at Doctrine\DBAL\Driver\PDO\MySQL\Driver->connect() (vendor/doctrine/dbal/src/Driver/Middleware/AbstractDriverMiddleware.php:29) at Doctrine\DBAL\Driver\Middleware\AbstractDriverMiddleware->connect() (vendor/symfony/doctrine-bridge/Middleware/Debug/Driver.php:41) at Symfony\Bridge\Doctrine\Middleware\Debug\Driver->connect() (vendor/doctrine/dbal/src/Connection.php:378) at Doctrine\DBAL\Connection->connect() (vendor/doctrine/dbal/src/Connection.php:1659) at Doctrine\DBAL\Connection->getWrappedConnection() (vendor/doctrine/dbal/src/Connection.php:1082) at Doctrine\DBAL\Connection->executeQuery() (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:776) at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->load() (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:794) at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadById() (vendor/doctrine/orm/src/EntityManager.php:521) at Doctrine\ORM\EntityManager->find() (var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php:143) at ContainerBykbw1h\EntityManager_9a5be93->find() (vendor/doctrine/orm/src/EntityRepository.php:197) at Doctrine\ORM\EntityRepository->find() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:142) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->find() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:91) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->apply() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:84) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->applyConverter() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:48) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->apply() (vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php:72) at Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener->onKernelController() (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:118) at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke() (vendor/symfony/event-dispatcher/EventDispatcher.php:230) at Symfony\Component\EventDispatcher\EventDispatcher->callListeners() (vendor/symfony/event-dispatcher/EventDispatcher.php:59) at Symfony\Component\EventDispatcher\EventDispatcher->dispatch() (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:154) at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch() (vendor/symfony/http-kernel/HttpKernel.php:151) at Symfony\Component\HttpKernel\HttpKernel->handleRaw() (vendor/symfony/http-kernel/HttpKernel.php:75) at Symfony\Component\HttpKernel\HttpKernel->handle() (vendor/symfony/http-kernel/Kernel.php:202) at Symfony\Component\HttpKernel\Kernel->handle() (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35) at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run() (vendor/autoload_runtime.php:35) at require_once('/home/projects/pms/vendor/autoload_runtime.php') (public/index.php:5)

[2/3] Exception

Doctrine\DBAL\Driver\PDO\Exception:
SQLSTATE[08004] [1040] Too many connections

  at vendor/doctrine/dbal/src/Driver/PDO/Exception.php:28
  at Doctrine\DBAL\Driver\PDO\Exception::new()
     (vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php:40)
  at Doctrine\DBAL\Driver\PDO\MySQL\Driver->connect()
     (vendor/doctrine/dbal/src/Driver/Middleware/AbstractDriverMiddleware.php:29)
  at Doctrine\DBAL\Driver\Middleware\AbstractDriverMiddleware->connect()
     (vendor/symfony/doctrine-bridge/Middleware/Debug/Driver.php:41)
  at Symfony\Bridge\Doctrine\Middleware\Debug\Driver->connect()
     (vendor/doctrine/dbal/src/Connection.php:378)
  at Doctrine\DBAL\Connection->connect()
     (vendor/doctrine/dbal/src/Connection.php:1659)
  at Doctrine\DBAL\Connection->getWrappedConnection()
     (vendor/doctrine/dbal/src/Connection.php:1082)
  at Doctrine\DBAL\Connection->executeQuery()
     (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:776)
  at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->load()
     (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:794)
  at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadById()
     (vendor/doctrine/orm/src/EntityManager.php:521)
  at Doctrine\ORM\EntityManager->find()
     (var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php:143)
  at ContainerBykbw1h\EntityManager_9a5be93->find()
     (vendor/doctrine/orm/src/EntityRepository.php:197)
  at Doctrine\ORM\EntityRepository->find()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:142)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->find()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:91)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->apply()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:84)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->applyConverter()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:48)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->apply()
     (vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php:72)
  at Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener->onKernelController()
     (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:118)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:230)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:59)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:154)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (vendor/symfony/http-kernel/HttpKernel.php:151)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (vendor/symfony/http-kernel/HttpKernel.php:75)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:202)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:35)
  at require_once('/home/projects/pms/vendor/autoload_runtime.php')
     (public/index.php:5)

[1/3] PDOException
PDOException: SQLSTATE[08004] [1040] Too many connections at vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php:34 at PDO->__construct() (vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php:34) at Doctrine\DBAL\Driver\PDO\MySQL\Driver->connect() (vendor/doctrine/dbal/src/Driver/Middleware/AbstractDriverMiddleware.php:29) at Doctrine\DBAL\Driver\Middleware\AbstractDriverMiddleware->connect() (vendor/symfony/doctrine-bridge/Middleware/Debug/Driver.php:41) at Symfony\Bridge\Doctrine\Middleware\Debug\Driver->connect() (vendor/doctrine/dbal/src/Connection.php:378) at Doctrine\DBAL\Connection->connect() (vendor/doctrine/dbal/src/Connection.php:1659) at Doctrine\DBAL\Connection->getWrappedConnection() (vendor/doctrine/dbal/src/Connection.php:1082) at Doctrine\DBAL\Connection->executeQuery() (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:776) at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->load() (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:794) at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadById() (vendor/doctrine/orm/src/EntityManager.php:521) at Doctrine\ORM\EntityManager->find() (var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php:143) at ContainerBykbw1h\EntityManager_9a5be93->find() (vendor/doctrine/orm/src/EntityRepository.php:197) at Doctrine\ORM\EntityRepository->find() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:142) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->find() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:91) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->apply() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:84) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->applyConverter() (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:48) at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->apply() (vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php:72) at Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener->onKernelController() (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:118) at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke() (vendor/symfony/event-dispatcher/EventDispatcher.php:230) at Symfony\Component\EventDispatcher\EventDispatcher->callListeners() (vendor/symfony/event-dispatcher/EventDispatcher.php:59) at Symfony\Component\EventDispatcher\EventDispatcher->dispatch() (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:154) at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch() (vendor/symfony/http-kernel/HttpKernel.php:151) at Symfony\Component\HttpKernel\HttpKernel->handleRaw() (vendor/symfony/http-kernel/HttpKernel.php:75) at Symfony\Component\HttpKernel\HttpKernel->handle() (vendor/symfony/http-kernel/Kernel.php:202) at Symfony\Component\HttpKernel\Kernel->handle() (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35) at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run() (vendor/autoload_runtime.php:35) at require_once('/home/projects/pms/vendor/autoload_runtime.php') (public/index.php:5)

[1/3] PDOException

PDOException:
SQLSTATE[08004] [1040] Too many connections

  at vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php:34
  at PDO->__construct()
     (vendor/doctrine/dbal/src/Driver/PDO/MySQL/Driver.php:34)
  at Doctrine\DBAL\Driver\PDO\MySQL\Driver->connect()
     (vendor/doctrine/dbal/src/Driver/Middleware/AbstractDriverMiddleware.php:29)
  at Doctrine\DBAL\Driver\Middleware\AbstractDriverMiddleware->connect()
     (vendor/symfony/doctrine-bridge/Middleware/Debug/Driver.php:41)
  at Symfony\Bridge\Doctrine\Middleware\Debug\Driver->connect()
     (vendor/doctrine/dbal/src/Connection.php:378)
  at Doctrine\DBAL\Connection->connect()
     (vendor/doctrine/dbal/src/Connection.php:1659)
  at Doctrine\DBAL\Connection->getWrappedConnection()
     (vendor/doctrine/dbal/src/Connection.php:1082)
  at Doctrine\DBAL\Connection->executeQuery()
     (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:776)
  at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->load()
     (vendor/doctrine/orm/src/Persisters/Entity/BasicEntityPersister.php:794)
  at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadById()
     (vendor/doctrine/orm/src/EntityManager.php:521)
  at Doctrine\ORM\EntityManager->find()
     (var/cache/dev/ContainerBykbw1h/EntityManager_9a5be93.php:143)
  at ContainerBykbw1h\EntityManager_9a5be93->find()
     (vendor/doctrine/orm/src/EntityRepository.php:197)
  at Doctrine\ORM\EntityRepository->find()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:142)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->find()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/DoctrineParamConverter.php:91)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter->apply()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:84)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->applyConverter()
     (vendor/sensio/framework-extra-bundle/src/Request/ParamConverter/ParamConverterManager.php:48)
  at Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager->apply()
     (vendor/sensio/framework-extra-bundle/src/EventListener/ParamConverterListener.php:72)
  at Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener->onKernelController()
     (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:118)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:230)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:59)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:154)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (vendor/symfony/http-kernel/HttpKernel.php:151)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (vendor/symfony/http-kernel/HttpKernel.php:75)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:202)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:35)
  at require_once('/home/projects/pms/vendor/autoload_runtime.php')
     (public/index.php:5)

Symfony Profiler

http://pms.cmet.ustc.edu.cn/announcement-attachment/download/86

Exceptions

PDOException Exception DriverException

HTTP 500 Internal Server Error

An exception occurred in the driver: SQLSTATE[08004] [1040] Too many connections

Exceptions 3

Doctrine\DBAL\Exception\ DriverException

Doctrine\DBAL\Driver\PDO\ Exception

PDOException

Stack Traces 3

Symfony Profiler

http://pms.cmet.ustc.edu.cn/announcement-attachment/download/86

Configuration Settings

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Exceptions

PDOException Exception DriverException

HTTP 500 Internal Server Error

An exception occurred in the driver: SQLSTATE[08004] [1040] Too many connections

Exceptions 3

Doctrine\DBAL\Exception\ DriverException

Doctrine\DBAL\Driver\PDO\ Exception

PDOException

Stack Traces 3