Asynchronous insert in Azure Tables

WorkerRole.cs

using System;
using System.Data.Services.Client;
using System.Diagnostics;
using System.Net;
using System.Threading;
using Microsoft.WindowsAzure;
using Microsoft.WindowsAzure.ServiceRuntime;
using Microsoft.WindowsAzure.StorageClient;

namespace WorkerRole1
{
    public class WorkerRole : RoleEntryPoint
    {
        public override void Run()
        {
            var storageWriter = new TableStorageWriter();
            while (true)
            {
                Thread.Sleep(10000);
                storageWriter.Write("Working...");
            }
        }

        public override bool OnStart()
        {
            ServicePointManager.DefaultConnectionLimit = 12;
            return base.OnStart();
        }
    }

    internal class TableStorageWriter
    {
        private const string _tableName = "StorageTest";
        private readonly CloudStorageAccount _storageAccount;
        private readonly CloudTableClient _tableClient;

        public TableStorageWriter()
        {
            _storageAccount = CloudStorageAccount.Parse(CloudConfigurationManager.GetSetting("StorageConnectionString"));
            _tableClient = _storageAccount.CreateCloudTableClient();
            _tableClient.CreateTableIfNotExist(_tableName);
        }

        public void Write(string message)
        {
            try
            {
                DateTime now = DateTime.UtcNow;
                var entity = new StorageTestEntity
                    {
                        Message = message,
                        PartitionKey = string.Format("{0:yyyy-MM-dd}", now),
                        RowKey = string.Format("{0:HH:mm:ss.fff}-{1}", now, Guid.NewGuid())
                    };

                TableServiceContext context = _tableClient.GetDataServiceContext();
                context.AddObject(_tableName, entity);
                context.BeginSaveChangesWithRetries(SaveChangesOptions.Batch,
                                                    (asyncResult => context.EndSaveChangesWithRetries(asyncResult)),
                                                    null);
            }
            catch (StorageClientException e)
            {
                Debug.WriteLine("Error: {0}", e.Message);
                Debug.WriteLine("Extended error info: {0} : {1}",
                                e.ExtendedErrorInformation.ErrorCode,
                                e.ExtendedErrorInformation.ErrorMessage);
            }
        }
    }

    internal class StorageTestEntity : TableServiceEntity
    {
        public string Message { get; set; }
    }
}