Android : Windows of mobile world

Created presentation on why people called Android as windows of mobile world

Android is new Windows by surendra sharma on Scribd

How to recycle application pool automatically in IIS

What will you do if you get a call on holiday or weekend that your website hosted server is consuming 95% CPU utilization due to IIS worker process and within a few minutes, your server is going to crash and your website will not be accessible?

You have to access the server and recycle your app pool, right?

Can we provide some automated solution for this?

Yes, fortunately IIS can take care of this situation.

Let's say if CPU utilization reached to 92% and it remains at 92% or more for next 3 minute then we want IIS should recycle application pool automatically.

Follow below steps to achieve this.

• Open IIS. 
• Right click on your website application pool and select “Advance Setting…”
• Locate CPU section 
• Put Limit (percent) as 92% 
• Set Limit Action at KillW3wp 
• Set Limit Interval (minutes) at 3 
• Click Ok

That's it.

Here is a screenshot for quick understanding

App Pool Recycle automatically

Now no manual intervention is required. You can enjoy your weekend. But remember this is not a a solution, this is just a work around for the problem. You should find the root cause of the problem.

Integrating Microsoft Azure Service Bus with Sitecore 8.2

Azure service bus is super useful when you want to integrate external system with Sitecore.

Let’s say you have external system which release some data on periodic basis. We want to process this data and perform create/update/delete item operation in Sitecore.

 

Azure Service Bus

How to do that?

Sender

External system send the data in the form of JSON format and drop in Azure service bus messaging queue.

We are using below code for reading data from file and pushing JSON data message to Azure service bus as

using Microsoft.ServiceBus.Messaging;

using System;

using System.Configuration;

using System.IO;

using System.Web.Http;

public string PushData()

{

    string result = "success";

    try

    {

        string content = File.ReadAllText(ConfigurationManager.AppSettings["JSONFilePath"]);

        var connectionString = ConfigurationManager.AppSettings["Microsoft.ServiceBus.ConnectionString"];

        var queueName = ConfigurationManager.AppSettings["QueueName"];

        var client = QueueClient.CreateFromConnectionString(connectionString, queueName);

        var message = new BrokeredMessage(content);

        client.Send(message);

    }

    catch (Exception ex)

    {

        result = ex.Message;

    }

    return result;

}

Receiver

We will create scheduler in Sitecore which polling this service bus after regular interval. These intervals are scheduled as per business needs.

In below code, we will get all the messages from Azure service Bus and if we are able to create Sitecore item successfully then we will mark that service bus message to be deleted from queue otherwise we will reprocess that message in next cycle of scheduler.

/// <summary>

/// Execute method is called by Sitecore scheduler

/// </summary>

/// <param name="items"></param>

/// <param name="command"></param>

/// <param name="schedule"></param>

public void Execute(Item[] items, Sitecore.Tasks.CommandItem command, Sitecore.Tasks.ScheduleItem schedule)

{

    try

    {

        var connectionString = ConfigurationManager.AppSettings["Microsoft.ServiceBus.ConnectionString"];

        var queueName = ConfigurationManager.AppSettings["QueueName"];

        var client = QueueClient.CreateFromConnectionString(connectionString, queueName);

        int counter = 1;

        var destinationTemplateId = "{7DA49B50-B1C3-4410-9C4C-9FBC4945935F}";

        string destinationPath = "{ED84594E-47E2-4FA1-9689-6BCF874DC04F}";

        OnMessageOptions omp = new OnMessageOptions();

        omp.AutoComplete = false;

        omp.AutoRenewTimeout = new TimeSpan(0, 1, 0);

        client.OnMessage((message) =>

            {

                try

                {

                    var myContent = Newtonsoft.Json.JsonConvert.DeserializeObject<Rootobject>(message.GetBody<string>());

                    //Code to Store it in Sitecore

                    var item = CreateSitecoreItem(destinationPath, myContent.Title, destinationTemplateId, myContent.FirstName, myContent.LastName);

                    if (item != null)

                    {

                        //This is important step as if we able to create item in sitecore then we will mark delete the message from service bus queue

                        message.Complete();

                    }

                }

                catch (Exception ex)

                {

                    //This is important step as if we unable to process this message, we will process it again in next cycle

                    message.Abandon();

                    File.AppendAllText("d:\\error.txt", ex.Message + Environment.NewLine);

                }

            }, omp);

    }

    catch (Exception ex)

    {

        var result = ex.Message;

    }

}

private Item CreateSitecoreItem(string destinationPath, string itemName, string targetTemplateId, string firstName, string lastName)

{

    Item sitecoreItem = null;

    try

    {

        // The SecurityDisabler overrides the current security model, allowing you

        // to access the item without any security. It's like the user being an administrator

        using (new Sitecore.SecurityModel.SecurityDisabler())

        {

            // Get the master database

            Database master = Database.GetDatabase("master");

            // Get the place in the site tree where the new item must be inserted

            Item parentItem = master.GetItem(destinationPath);

            if (parentItem != null)

            {

                // Get the template to base the new item

                TemplateItem template = master.GetItem(targetTemplateId);

                // Add the item to the site tree

                sitecoreItem = parentItem.Add(itemName, template);

            }

            if (sitecoreItem != null)

            {

                using (new Sitecore.SecurityModel.SecurityDisabler())

                {

                    sitecoreItem.Editing.BeginEdit();

                    if (sitecoreItem.Fields["First Name"] != null)

                    {

                        sitecoreItem.Fields["First Name"].Value = firstName;

                    }

                    if (sitecoreItem.Fields["Last Name"] != null)

                    {

                        sitecoreItem.Fields["Last Name"].Value = lastName;

                    }

                    sitecoreItem.Editing.EndEdit();

                    File.AppendAllText(HLConstants.LogPath, Environment.NewLine + "Created new item " + firstName + " " + lastName + Environment.NewLine);

                }

            }

        }

    }

    catch (Exception ex)

    {

        File.AppendAllText(HLConstants.LogPath, "add New Item " + itemName + " Error Message " + ex.Message + " ---- " + "trace " + ex.StackTrace + Environment.NewLine);

    }

    return sitecoreItem;

}

You can learn about Service Bus Messaging at https://docs.microsoft.com/en-us/azure/service-bus-messaging/

I hope you like this Sitecore article. Stay tuned for more Sitecore related articles.

Till that happy Sitecoring :)

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