Browse by Tags

Working with SSAS traces and the dreaded Textdata in SSMS

For good or bad i regularly work with SSAS traces that i have saved to a table and many years ago i was regularly frustrated by the fact that the contents of the textdata column containing the query is always truncated at 65535 characters. You may think 65535 characters should cover most queries but...

Posted to Andrew Calvett (Weblog) by ACALVETT on Sat, Feb 4 2012
SSAS Crash Dump behavior

In SSAS 2005, when an exception occurs, you will always get a crash dump generated in the log directory of the instance and this could potentially lead to a lot of crash dumps consuming resources and a lot of work for the person who has to analyse the contents of each dump. One of the benefits of this...

Posted to Andrew Calvett (Weblog) by ACALVETT on Tue, Jan 17 2012
Extreme load and “the operation has been cancelled”

There are many reasons why SSAS may generate an operation has been cancelled but i want to take you through a new, although rare, one that i recently discovered. To set the scene I had been tuning the Process Index phase on one of our servers so we could fit a full reindex of a 1.8TB cube comfortably...

Posted to Andrew Calvett (Weblog) by ACALVETT on Sun, Sep 18 2011
SSAS 2008 R2 Operations Guide

What can i say but WOO HOO! The SSAS 2008 R2 Operations Guide has been published so download your copy now! This document should be considered essential reading and contains over 100 pages of high quality information for configuring, testing and operating an Analysis Services server. Finally i consider...

Posted to Andrew Calvett (Weblog) by ACALVETT on Thu, Jun 2 2011
SQL Agent and SSAS Commands

SQL Agent can be used to execute SSAS commands such as processing of a dimension and i can see that it is useful when you want to quickly schedule an adhoc processing task but there is a major drawback you need to be aware of. You are not able to specify the database to connect to and whilst you may...

Posted to Andrew Calvett (Weblog) by ACALVETT on Mon, May 30 2011
SSAS Exposes a W2K3 bug

I recently came across a bug in Windows 2003 SP2 which causes a blue screen of death and SSAS was exposing the bug. In my scenario SSAS was the match, a file system cache function was the fuse and a BSOD the payload….. If your an all Windows 2008 shop then there is no need to read on and i am envious...

Posted to Andrew Calvett (Weblog) by ACALVETT on Wed, Apr 6 2011
SSAS Deployment essentials

Over the recent years i have enjoyed the privilege of working on a number of different SSAS deployments. Some are huge, some are complex and some of them are huge and complex and most interestingly they all behave differently. What i want to share today is what i consider to be essential for an SSAS...

Posted to Andrew Calvett (Weblog) by ACALVETT on Wed, Mar 30 2011
SSAS 2008 R2– Little Gems

I have spent the last few days working with SSAS 2008 R2 and noticed a few small enhancements which many people probably won’t notice but i will list them here and why they are important to me. New profiler events Commit: This is a new sub class event for “progress report end”. This represents the elapsed...

Posted to Andrew Calvett (Weblog) by ACALVETT on Fri, Dec 3 2010
SSAS Native v .net Provider

Recently I was investigating why a new server which is in its parallel running phase was taking significantly longer to process the daily data than the server its due to replace. The server has SQL & SSAS installed so the problem was not likely to be in the network transfer as its using shared memory...

Posted to Andrew Calvett (Weblog) by ACALVETT on Tue, Nov 30 2010
SSAS <PreAllocate>: What you should know

Preallocating memory for SSAS running on Windows 2003 is a good thing but as with all good things it is essential to know the behavioural changes you will experience, some of which may not be so obvious. My observations relate to SSAS 2008 SP1 CU8 running on Windows 2003 SP2. Why PreAllocate? In my opinion...

Posted to Andrew Calvett (Weblog) by ACALVETT on Sun, Jul 18 2010

Page 1 of 2 (12 items) 1 2 Next >