catch (Exception $e) {
throw new QueryException(
$query, $this->prepareBindings($bindings), $e
);
}
}
1 C:\wamp64\www\laravelProject\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70
PDOException::("SQLSTATE[HY000] [2002] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
")
2 C:\wamp64\www\laravelProject\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70
PDO::__construct("mysql:host=127.0.0.1;port=3308;dbname=laravelproject", "root", "", [])
use Illuminate\Support\Facades\Schema; <-------------------------ADD THIS
public function boot()
{
Schema::defaultStringLength(191); <-------------------------ADD THIS
}
}
This is the final code.
Related
Having the following code snippet:
try
{
UpdateCommand updateCommand = new UpdateCommand
{
Name = "Update"
};
await sendEndpoint.Send(updateCommand);
}
catch (BrokerUnreachableException ex)
{
}
catch (Exception ex)
{
}
When calling Send method and when there is no connection with RabbitMQ then exception is not being thrown. Is it supposed to work like this ?
I've tried to ConnectSendObserver to my ReceiveEndpoint like so:
ISendObserver sendObserver = new UpdateSendObserver();
cfg.ReceiveEndpoint(EventBusConstants.UpdateQueue, c => {
c.ConfigureConsumer<UpdateCommandConsumer> (ctx);
cfg.ConnectSendObserver(sendObserver);
});
But it doesn't hit any of the PreSend, PostSend, SendFault methods when there is no connection with RabbitMQ.
As explained in the GitHub Discussion, you can cancel the call to Send/Publish using a CancellationToken. The transport uses a retry policy if a connection to the broker is not available.
How can i check the availability of Redis connection in Laravel 5.4. I tried below code, but getting an exception with ping line. How can i do, if Redis is not connected than do something else to avoid exception?
No connection could be made because the target machine actively
refused it. [tcp://127.0.0.1:6379]
use Redis;
class SocketController extends Controller
{
public function sendMessage(){
$redis = Redis::connection();
if($redis->ping()){
print_r("expression");
}
else{
print_r("expression2");
}
}
}
Also tried this:
$redis = Redis::connection();
try{
$redis->ping();
} catch (Exception $e){
$e->getMessage();
}
But unable to catch exception
if you are using predis , then it will throw Predis\Connection\ConnectionException
Error while reading line from the server. [tcp://127.0.0.1:6379] <--when redis is not connected
so catch that Exception, you will get your redis is connected or not .
use Illuminate\Support\Facades\Redis;
public function redis_test(Request $request){
try{
$redis=Redis::connect('127.0.0.1',3306);
return response('redis working');
}catch(\Predis\Connection\ConnectionException $e){
return response('error connection redis');
}
<?php
namespace App\Helpers;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redis;
class ConnectionChecker
{
public static function isDatabaseReady($connection = null)
{
$isReady = true;
try {
DB::connection($connection)->getPdo();
} catch (\Exception $e) {
$isReady = false;
}
return $isReady;
}
public static function isRedisReady($connection = null)
{
$isReady = true;
try {
$redis = Redis::connection($connection);
$redis->connect();
$redis->disconnect();
} catch (\Exception $e) {
$isReady = false;
}
return $isReady;
}
}
I created a helper class to check redis and db connection
Make sure redis is installed
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get install redis-server
To test that your service is functioning correctly, connect to the Redis server with the command-line client:
redis-cli
In the prompt that follows, test connectivity by typing:
ping
You should see:
Output
PONG
Install Laravel dependencies
composer require predis/predis
https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-redis-on-ubuntu-16-04
https://askubuntu.com/questions/868848/how-to-install-redis-on-ubuntu-16-04
In your constructor you can check redis status connection like this:
/**
* RedisDirectGeoProximity constructor.
* #throws RedisConnectionException
*/
public function __construct()
{
try
{
$this->redisConnection = Redis::connection('default');
}
catch ( Exception $e )
{
throw new RedisConnectionException([
'message' => trans('messages.redis.fail'),
'code' => ApiErrorCodes::REDIS_CONNECTION_FAIL
]);
}
}
and in your exception :
namespace App\Exceptions\Redis;
/**
* Class RedisConnectionException
* #package App\Exceptions\Redis
*/
class RedisConnectionException extends \Exception
{
/**
* RedisConnectionException constructor.
* #param array $options
*/
public function __construct(array $options = [])
{
parent::__construct($options);
}
}
please try with catch (\Exception $e) incl. backslash
I am trying to get all objects from an S3 bucket, but while creating the client by using the factory method, I received an error:
Fatal error: Class 'S3Client' not found in C:\wamp\www\sss.php on line 6
I used the following code:
require 'vendor/autoload.php';
try {
$client = S3Client::factory($credentials);
$arr[] = $client->listObjects(array(
'Bucket'=>'MyglobalBucket1'
));
if ($arr != null) {
var_dump($arr);
}
else {
echo "failed";
}
}
catch(Exception $e) {
echo $e->getMessage();
}
You forgot to use the proper namespace.
use Aws\S3\S3Client;
Connected to website and keeping idle for 30 mins, then trying to access the entities I am getting the following error.
Entity framework An error occurred while executing the command definition. See the inner exception for details . Inner exception {“Invalid object name 'dbo.TableName'.”}
Sample Code
Static Class Azure
{
public static CrmEntities ConnectCustomerEntity()
{
CrmEntities customerEntity = null;
policy.ExecuteAction(() =>
{
try
{
var shardId = GetShardId();
customerEntity = new CrmEntities(ConnectionStringCustomerDB());
string federationCmdText = #"USE FEDERATION Customer_Federation(ShardId =" + shardId + ") WITH RESET, FILTERING=ON";
customerEntity.Connection.Open();
customerEntity.ExecuteStoreCommand(federationCmdText);
}
catch (Exception e)
{
customerEntity.Connection.Close();
SqlConnection.ClearAllPools();
//throw e;
}
});
return customerEntity;
}
public static CrmEntities DBConnect(CrmEntities _db)
{
try{
if (_db == null)
_db = Azure.ConnectCustomerEntity();
if ((_db.Connection.State == ConnectionState.Broken) || (_db.Connection.State == ConnectionState.Closed))
{
SqlConnection.ClearAllPools();
_db = Azure.ConnectCustomerEntity();
}
else
{ //This code is to find out any issues in connection pool database connection
string sqlCmdText = #"select top 1 Id from Project";
_db.ExecuteStoreCommand(sqlCmdText);
}
}
catch (Exception ex)
{
_db.Connection.Close();
SqlConnection.ClearAllPools();
_db = Azure.ConnectCustomerEntity();
}
return _db;
}
}
Mvc Controller. The following code I am gettting that exception, after 30 mins
public class FilterController : Controller
{
public ActionResult GetFilters(string entityName,string typeFilter)
{
_crmEntities=Azure.DBConnect(_db);
var query = _db.FilterFields.Where(filter => filter.TableId == tableId).ToList(); // Here I am getting that exception
}
}
I dont know, Why i m getting that exception. I tried all possibilities. Nothing helped. I really struck with this. If anybody knows please tell your views to come out from this exception
Thanks in Advance.
I think your session times out.
try to increase session timeout:
http://msdn.microsoft.com/en-us/library/system.web.sessionstate.httpsessionstate.timeout.aspx
I have the next problem, I get a context from the LDAP setting Up JNDI Environment properties for the InitialContext as it showed below.
Then I restart the ldap server, and each time I try to get again the InitialContext, the next exception is thrown.
Code to get the Context.
Context ctx = null;
Hashtable ht = new Hashtable();
ht.put(Context.INITIAL_CONTEXT_FACTORY,
"weblogic.jndi.WLInitialContextFactory");
ht.put(Context.PROVIDER_URL,"t3://localhost:7001");
ht.put(Context.SECURITY_PRINCIPAL,"USER1");
ht.put(Context.CREDENTIALS,"PASSWORD1");
try {
ctx = new InitialContext(ht);
}
catch (NamingException e) {
}
finally {
try {ctx.close();
}
catch (Exception e) {
// a failure occurred
}
}
Exception:
java.security.PrivilegedActionException: javax.naming.ConfigurationException: Call to NamingManager.getObjectInstance() failed:
[Root exception is java.lang.SecurityException:
[Security:090398]Invalid Subject: principals=[ADMIN]]; remaining name ''
BEA-090398
You are not providing a proper DN to authenticate with:
ht.put(Context.SECURITY_PRINCIPAL,"USER1");
You should have cn=user1,ou=something,dc=something,dc=com or the like.