Resolution Steps :

-> I verified the report logs and below was the error logged :

extensionfactory!ReportServer_0-4!20f8!07/30/2015-13:15:03:: e ERROR: Exception caught instantiating Report Server Email report server extension: Microsoft.ReportingServices.Diagnostics.Utilities.ServerConfigurationErrorException: The report server...

I have restored the reportserver database along with the encryption keys on my local machine. I see that everything except the subscriptions. Is there any way to restore the subscriptions?

what do you mean by "resizing the data file" ?

You have to open 5022 port on both the servers

Do you have only one database on the principal server?

You can change the default data directory and provide your own path while installing SQL server for system databases.

what kind of patching is it? is it a windows update or SQL update or any database script?

1) you can create a linked server of destination server on the source , write a insert query put it in a SQL job and schedule it

OR

2) Create an SSIS...

Is the job really running? It might look as if it is running sometimes, can you run sp_who2 for that spid and check?

check if the log reader & distribution agents are running fine.. Also verify the t-log space of distribution db

DECLARE @I VARCHAR(10)

SET @I = '0745'

IF( SUBSTRING(@I,1,1)= 0)

SET @I = '0'+ CAST((CAST(@I AS INT)+15) AS VARCHAR(10))

ELSE

SET @I = CAST((CAST(@I AS INT)+15) AS VARCHAR(10))

IF( SUBSTRING(@I,1,1)= 0)

SELECT CASE WHEN SUBSTRING(@I,3,2)='60' THEN...

Create backup jobs on both the nodes and add tsql code to check for the primary replica as first step before the maintenance plan step .

If node =...

Do you have any open transactions on the primary database? what is the state of secondary database?

Taking full backup of database wouldn't truncate the log, instead you have to take a log backup to truncate the log.

https://msdn.microsoft.com/en-us/library/cc280546.aspx