Skip to main content

AWS RDS Backup Restore

Image
By
This post describes a backup/restore procedure for the Content Manager database in an Amazon Web Services (AWS) environment). The database is a MSSQL instance running on as Amazon Relational Database Service (RDS).

The existing database is from an SDL Tridion 2013 environment, and as such, after the restore in the new SDL Web 8.5 environment, it will have to be upgraded to SDL Web 8.5.

Performing the backup implies taking the database offline and executing the stored procedure:

exec msdb.dbo.rds_backup_database 'Tridion_cm_2013', 'arn:aws:s3:::mybackup/Tridion_cm_2013.bak'

The procedure is described in http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/SQLServer.Procedural.Importing.html

Performing the restore implies executing the following stored procedure in the new RDS database:

exec msdb.dbo.rds_restore_database 'Tridion_cm_2013','arn:aws:s3:::mybackup/Tridion_cm_2013.bak',''

While the restore is running, you can track the progress by calling rds_task_status

exec msdb.dbo.rds_task_status @task_id=4

The restore process is quite lengthy, but a log is available in one of the fields returned by rds_task_status:

Task execution has started.
Tridion_cm_2013.bak: Completed processing 5.02% of S3 chunks.
RESTORE DATABASE successfully processed 9358282 pages in 1409.730 seconds (51.862 MB/sec).
...
Tridion_cm_2013.bak: S3 processing completed successfully
Command execution completed successfully.

As usual, after restore, the old database logins are not available anymore, because they have been disassociated between the old and new databases instances. The existing TCMDBUser user must be altered in order to associate it with the new TCMDBUser user from the new database:

ALTER USER TCMDBUser WITH LOGIN=TCMDBUser


Labels:

Comments

Post a Comment

Popular posts from this blog

Running sp_updatestats on AWS RDS database

By
Part of the maintenance tasks that I perform on a MSSQL Content Manager database is to run stored procedure sp_updatestats . exec sp_updatestats However, that is not supported on an AWS RDS instance. The error message below indicates that only the sa  account can perform this: Msg 15247 , Level 16 , State 1 , Procedure sp_updatestats, Line 15 [Batch Start Line 0 ] User does not have permission to perform this action. Instead there are several posts that suggest using UPDATE STATISTICS instead: https://dba.stackexchange.com/questions/145982/sp-updatestats-vs-update-statistics I stumbled upon the following post from 2008 (!!!), https://social.msdn.microsoft.com/Forums/sqlserver/en-US/186e3db0-fe37-4c31-b017-8e7c24d19697/spupdatestats-fails-to-run-with-permission-error-under-dbopriveleged-user , which describes a way to wrap the call to sp_updatestats and execute it under a different user: create procedure dbo.sp_updstats with execute as 'dbo' as...
2 comments
Read more

Toolkit - Performance

By
This post if part of a series about the File System Toolkit  - a custom content delivery API for SDL Tridion. This post presents performance data that was captured for each major functionality with and without caching Linking, CP Assembler, Component Presentation Factory, Dynamic Content Queries, Model Factory. The data was captured on a 2014 Macbook Pro 15", 16 GB RAM, 2.6 GHz Intel Core i7 running OS X El Capitan. Test methodology: each test was run for 3 minutes and the total number of successful Toolkit API calls was measured. Then the number of calls per second was computed 'with cache' and 'without cache' test runs. Then a cache boost factor was calculated by diving (the number of API calls with cache) / (number of API calls without cache). Each cache test was executed 3 times, with different cache time-to-live values of 1 second, 5 seconds and 0 seconds (eternal cache, no expiration). The rationale is to see what impact different cache expiration/evi...
Post a Comment
Read more

REL Standard Tag Library

By
The RSTL is a library of REL tags providing standard functionality such as iterating collections, conditionals, imports, assignments, XML XSLT transformations, formatting dates, etc. RSTL distributable is available on my Google Code page under  REL Standard Tag Library . Always use the latest JAR . This post describes each RSTL tag in the library explaining its functionality, attributes and providing examples. For understanding the way expressions are evaluated, please read my post about the  Expression Language used by REL Standard Tag Library . <c:choose> / <c:when> / <c:otherwise> Syntax:     <c:choose>         <c:when test="expr1">             Do something         </c:when>         <c:when test="expr2">             Do something else         </c:when...
2 comments
Read more