Easing Into Using the New AutoStats Feature - comment by carrie
Chandra, At a mininum, you need STATSUSAGE logging enabled for an Analyze Job to making recommendations regarding missing and used stats. Enabling the XMLPLAN option as well may result in better...
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by carrie
Robin, I don't know of any way of "tuning" a collect statistics statement, in the way you might try to tune a regular query. A collect stats statement is going to scan the table and build the...
View ArticleIf You’re Not Collecting Statistics on Your Dictionary Tables, Do It. Now. -...
Thanks very much, Carrie! I will analyse and do some amendments to the existing stats plan. Regards Lakshminarasu
View ArticleCPU Limits at Multiple Levels - comment by HarshaKudumula
Hi Carrie, we recently migrated to 6800 system and implemented PMCOD 75% . I am using following formulae for available CPU Cycles in 6800 system. So estimated total available CPU seconds/day is...
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by robing9
I have partition defined for more than 20 fact tables in my database only 2 tables has this issue.
View ArticleCPU Limits at Multiple Levels - comment by carrie
The 6800 does not support PM COD. WM COD is the only supported option for COD on the 6800. If you were actually using platform metering (PM) COD on the 6800 because of some special situation, then...
View ArticleCPU Limits at Multiple Levels - comment by HarshaKudumula
Hi Carrie, Thank you for the response. Yes, we are using platform metering on the 6800 box and here is the formulae we are using to calculate estimated total available CPU seconds/hr: Number of Nodes...
View ArticleEasing Into Using the New AutoStats Feature - comment by csbandi5426
Thank you very much Carrie.
View ArticleAutomated Demotions on the Appliance: What are Query Milestones? - comment by...
Helllo Carrie, I'm aware this is an old thread but still, I would like to know if there's a way (Viewpoint or SQL query or otherwise) to see what is the CURRENT priority of a running query
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
Hi Carrie, I want to set session limit for ARC utility in TASM depending on UtilityDataSize (Large,Small,default). We have 12 PEs and 240 AMPs in configuration. Can you help me how I can calculate...
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
....CONTINUED for Large data size we use = 12 streams for Default(medium) data size = 8 streams for Small data size= 1 stream Now, i want to know what should be ideal values for below rules in TSAM in...
View ArticleAutomated Demotions on the Appliance: What are Query Milestones? - comment by...
In the Viewpoint User Guide for 15.0, it lists "Workload" as one of the Query Monitor portlet columns that you can choose to display. See page 259-260. Once you have the workload name, you can look at...
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
You don't need to calculate the number of sessions yourself. The purpose of session management is to do that for you in the database. The formula that session management uses to determine the...
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Being Smart About Using Workload Classification - blog entry by carrie
Cover Image: Have you ever found yourself confused when setting up classification criteria for a new workload in Teradata? You’re not alone. This posting discusses the main principles at work when it...
View ArticleEasing Into Using the New AutoStats Feature - comment by csbandi5426
Hi Carrie, I have created three new workloads for the autostats TIWM implementation. We are appliance platform. Three workloads VP-STATS-L, VP-STATS-M and VP-STATS-H were created 1) VP-STATS-L User...
View ArticleEasing Into Using the New AutoStats Feature - comment by csbandi5426
For the evaluation i gave below order VP-STATS-M, VP-STATS-L and VP-STATS-H. Thanks.
View ArticleBeing Smart About Using Workload Classification - comment by csbandi5426
Nice article Carie. Thank you.
View ArticleBeing Smart About Using Workload Classification - comment by StevenSchmid
Hi Carrie Thanks for the article. I have question, what happens if we want a workload to define on a table AND a database, as currently they are OR'd as you mentioned. Consider the scenario where we...
View ArticleEasing Into Using the New AutoStats Feature - comment by carrie
I don't see anything problematic with your evaluation order. You have the workloads with the most restrictive classifications first, which is good. The only way that an Analyze job could fall...
View ArticleBeing Smart About Using Workload Classification - comment by carrie
Steven, When you specify a table name in Viewpoint, you have to select the database name first. The "table" as a classification criteria is actually a "database+table" combination. So there should...
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