internal static RetryDelegate GetRetryDelegate()
{
var retriesAttempted = 0;
var retryPolicy = new Microsoft.WindowsAzure.Storage.RetryPolicies.ExponentialRetry(DefaultBackoffForRetry, DefaultNumberOfTimesToRetry);
return(async(statusCode, ex, retry) =>
{
TimeSpan retryDelay;
bool shouldRetry = retryPolicy.ShouldRetry(retriesAttempted++, statusCode, ex, out retryDelay, null);
if (!shouldRetry)
{
throw new Exception("After " + retriesAttempted + "attempts finding the resource timed out");
}
await Task.Delay(retryDelay);
await retry();
});
}
protected void Application_Start(object sender, EventArgs e)
{
try
{
/// On start up, CreateIfNotExists CloudBreadLog table on Azure Table Storage
/// On start up, CreateIfNotExists messagestolog table on Azure Queue Service
if (globalVal.StorageConnectionString != "")
{
/// this table is used for CloudBread game log saving
/// Azure Storage connection retry policy
var retryPolicy = new ExponentialRetry(TimeSpan.FromSeconds(2), 10);
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(globalVal.StorageConnectionString);
CloudTableClient tableClient = storageAccount.CreateCloudTableClient();
tableClient.DefaultRequestOptions.RetryPolicy = retryPolicy;
var cloudTable = tableClient.GetTableReference("CloudBreadLog");
cloudTable.CreateIfNotExists();
cloudTable = tableClient.GetTableReference("CloudBreadErrorLog");
cloudTable.CreateIfNotExists();
/// this queue is used for CloudBread queue method game log saving
CloudQueueClient queueClient = storageAccount.CreateCloudQueueClient();
queueClient.DefaultRequestOptions.RetryPolicy = retryPolicy;
CloudQueue queue = queueClient.GetQueueReference("messagestolog"); /// must be lowercase
queue.CreateIfNotExists();
/// this queue is used for CloudBread queue method game log saving
queue = queueClient.GetQueueReference("cloudbread-batch"); /// must be lowercase
queue.CreateIfNotExists();
}
// Regarding to configuration, check startup fill or not
if (globalVal.CloudBreadFillRedisRankSetOnStartup)
{
// execute redis rank fill task
CBRedis.FillAllRankFromDB();
}
}
catch (System.Exception ex)
{
throw ex;
}
}
/**
* @brief Save log task processor. \n
*/
public static bool RunLog(CBLoggers message)
{
if (globalVal.CloudBreadLoggerSetting != "")
{
if (string.IsNullOrEmpty(message.memberID))
{
message.memberID = ""; /// in case of non-member triggered job
}
/// critical error case, save in ATS CloudBreadErrorLog
if (message.Level.ToUpper() == "ERROR")
{
try
{
/// Save error log on Azure Table Storage
{
/// Azure Table Storage connection retry policy
var tableStorageRetryPolicy = new ExponentialRetry(TimeSpan.FromSeconds(2), 10);
CloudStorageAccount storageAccountT = CloudStorageAccount.Parse(globalVal.StorageConnectionString);
CloudTableClient tableClient = storageAccountT.CreateCloudTableClient();
tableClient.DefaultRequestOptions.RetryPolicy = tableStorageRetryPolicy;
CloudTable table = tableClient.GetTableReference("CloudBreadErrorLog");
CBATSMessageEntity Message = new CBATSMessageEntity(message.memberID, Guid.NewGuid().ToString());
Message.jobID = message.jobID;
Message.Date = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
Message.Thread = message.Thread;
Message.Level = message.Level;
Message.Logger = message.Logger;
Message.Message = message.Message;
Message.Exception = message.Exception;
TableOperation insertOperation = TableOperation.Insert(Message);
table.Execute(insertOperation);
}
}
catch (Exception)
{
/// Catch fail to log on database. Most case database connection or login fail issue.
throw;
}
}
else
{
/// Regarding to web.config logger settting, save logs on specific storage
try
{
switch (globalVal.CloudBreadLoggerSetting)
{
case "SQL":
/// Save log on SQL
string strQuery = string.Format("insert into dbo.CloudBreadLog(memberid, jobID, [Thread], [Level], [Logger], [Message], [Exception]) values('{0}','{1}','{2}','{3}','{4}','{5}','{6}')",
message.memberID,
message.jobID,
message.Thread,
message.Level,
message.Logger,
message.Message,
message.Exception
);
/// Database connection retry policy
RetryPolicy retryPolicy = new RetryPolicy<SqlAzureTransientErrorDetectionStrategy>(globalVal.conRetryCount, TimeSpan.FromSeconds(globalVal.conRetryFromSeconds));
SqlConnection connection = new SqlConnection(globalVal.DBConnectionString);
{
connection.OpenWithRetry(retryPolicy);
SqlCommand command = new SqlCommand(strQuery, connection);
int rowcount = command.ExecuteNonQueryWithRetry(retryPolicy);
connection.Close();
break;
}
case "ATS":
/// Save log on Azure Table Storage
{
/// Azure Table Storage connection retry policy
var tableStorageRetryPolicy = new ExponentialRetry(TimeSpan.FromSeconds(2), 10);
CloudStorageAccount storageAccountT = CloudStorageAccount.Parse(globalVal.StorageConnectionString);
CloudTableClient tableClient = storageAccountT.CreateCloudTableClient();
tableClient.DefaultRequestOptions.RetryPolicy = tableStorageRetryPolicy;
CloudTable table = tableClient.GetTableReference("CloudBreadLog");
CBATSMessageEntity Message = new CBATSMessageEntity(message.memberID, Guid.NewGuid().ToString());
Message.jobID = message.jobID;
Message.Date = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
//Message.Date = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ");
Message.Thread = message.Thread;
Message.Level = message.Level;
Message.Logger = message.Logger;
Message.Message = message.Message;
Message.Exception = message.Exception;
TableOperation insertOperation = TableOperation.Insert(Message);
table.Execute(insertOperation);
break;
}
case "AQS":
/// Save log on Azure Queue Storage
{
/// Azure Queue Storage connection retry policy
var queueStorageRetryPolicy = new ExponentialRetry(TimeSpan.FromSeconds(2), 10);
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(globalVal.StorageConnectionString);
CloudQueueClient queueClient = storageAccount.CreateCloudQueueClient();
queueClient.DefaultRequestOptions.RetryPolicy = queueStorageRetryPolicy;
CloudQueue queue = queueClient.GetQueueReference("messagestolog"); /// must be lower case
CBATSMessageEntity Message = new CBATSMessageEntity(message.memberID, Guid.NewGuid().ToString());
Message.jobID = message.jobID;
Message.Date = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
Message.Thread = message.Thread;
Message.Level = message.Level;
Message.Logger = message.Logger;
Message.Message = message.Message;
Message.Exception = message.Exception;
CloudQueueMessage Qmessage = new CloudQueueMessage(JsonConvert.SerializeObject(Message));
queue.AddMessage(Qmessage);
break;
}
case "redis":
/// todolist - save log on Azure Redis Cache
/// yyyymmdd:memberid:Controller:GUID
{
string redisKey = "";
string redisVal = "";
message.Date = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ"); ;
redisKey = DateTime.Now.ToUniversalTime().ToString("yyyyMMddHHmm") + ":" + message.memberID + ":" + message.Logger + ":" + Guid.NewGuid().ToString(); // guid - too long key size
redisVal = JsonConvert.SerializeObject(message);
CBRedis.saveRedisLog(redisKey, redisVal, globalVal.CloudBreadGameLogExpTimeDays);
}
break;
//case "DocDB":
// /// @todo save log data on Azure DocumentDB
// break;
default:
/// case do nothing
break;
}
}
catch (Exception)
{
/// catch save log error here.
throw;
}
}
}
return true;
}
/// <summary>
/// Initializes a new instance of the <see cref="TransferRetryPolicy"/> class.
/// </summary>
/// <param name="retryPolicy">ExponentialRetry object.</param>
/// <param name="maxAttemptsInOtherError">Max retry count when meets non x-ms error.</param>
private TransferRetryPolicy(ExponentialRetry retryPolicy, int maxAttemptsInOtherError)
{
this.retryPolicy = retryPolicy;
this.maxAttemptsOtherError = maxAttemptsInOtherError;
}
/// <summary>
/// Initializes a new instance of the <see cref="TransferRetryPolicy"/> class.
/// </summary>
/// <param name="deltaBackoff">Back-off in ExponentialRetry retry policy.</param>
/// <param name="maxAttemptsXMsError">Max retry count when meets x-ms error.</param>
/// <param name="maxAttemptsOtherError">Max retry count when meets non x-ms error.</param>
public TransferRetryPolicy(TimeSpan deltaBackoff, int maxAttemptsXMsError, int maxAttemptsOtherError)
{
Debug.Assert(
maxAttemptsXMsError >= maxAttemptsOtherError,
"We should retry more times when meets x-ms errors than the other errors.");
this.retryPolicy = new ExponentialRetry(deltaBackoff, maxAttemptsXMsError);
this.maxAttemptsOtherError = maxAttemptsOtherError;
}
public void VerifyBackoffTimeOverflow()
{
ExponentialRetry exponentialRetry = new ExponentialRetry(TimeSpan.FromSeconds(4), 100000);
VerifyBackoffTimeOverflow(exponentialRetry, 100000);
LinearRetry linearRetry = new LinearRetry(TimeSpan.FromSeconds(4), 100000);
VerifyBackoffTimeOverflow(linearRetry, 100000);
}
private void Initialize(TimeSpan deltaBackoff, int maxAttempts)
{
this.deltaBackoff = deltaBackoff;
this.maximumAttempts = maxAttempts;
retry = new ExponentialRetry(this.deltaBackoff, this.maximumAttempts);
}
