How I resolved the SharePoint Search problem

I was trying search the known word in my site collection, I have got this error with  details.

To find the exact reason for this error, you can search the correlation ID in your LOG file. By default, it will be located in

C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\LOGS

Under this folder  open the log which modified by the SharePoint latest. Simply you can filter the above folder by "Date Modified".

There are three ways to retrieve the exception detail for the above correlation ID.

1. Open the log file and search it with correlation Id.
2. Download the utility called ULS Viewer for SharePoint 2013 from Microsoft
3. Through SharePoint PowerShell. (SPLogEvent)

Get-SPLogEvent | ?{$_.Correlation -eq "2a445737-cc2c-4541-bc22-a763dc611ece"} | select  Message | Format-List




Microsoft.Office.Server.Search.Administration.IndexingScheduleJobDefinition (ID 2a445737-cc2c-4541-bc22-a763dc611ece) threw an exception. More information is included below.  The password of the search service account has expired. To update the password visit the services on server page and update the password for the search service.

And the exception message has more explanatory and advised me to check this on the server page, that means go to your Search Service application Page on your central administration.

It means , Search Service Application's service account on your SharePoint Server experiencing the failure when trying to connect the Web Service / Search service application related SQL database/ or any Search Components.

You need to go to Services on your Server and find the SharePoint related service.

Right click on the service and update the LogOn password for these service accounts.

After doing this, I can able to search it on my site collection.