CPU Limits at Multiple Levels - comment by Roopalini
Thanks for the response Carrie. I understood. Will go over the Orange book and get a better understanding.
View ArticleTeradata 13.10 Statistics Collection Recommendations - comment by carrie
Based on what you say, when stats were collected on Sunday (day 07), there are no rows in the partition for day 06 and no rows in the partition for day 07 and no rows yet in the partition for day 08....
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by vasudev
Hi Carrie, In TD 12, is there any option to store data and collect stats on that data into a same table. Which type of table(Spool,journal,Dervied,GTT) can be used for this purpose? Please advise. Vasudev
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by carrie
I am unable to understand exactly what you are asking. Teradata certainly allows you to insert data into a table you have defined. It also allows you to collect statistics on columns of that table....
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by vasudev
Hi Carrie, Sorry for making it complicated. My question is this. In TD 12 i want to store data on a table and for that table i need to take collect stats also. Out of spool,journal,derived and GTT...
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by carrie
In Teradata 12.0 you can collect stats on base table columns/indexes, and also you can collect statistics on GTTs. But with GTTs you can only collect single-column and index statistics. Multicolumn...
View ArticleCrossing NUSI Update Contention Off Your Watch List - comment by vasudev
Hi Carrie, I am using TD 12, I am having a table with many SI and its loaded using TPUMP. When the number of SI in the table is reduced, can this improve the performance of TPUMP. Please advise.
View ArticleStatistics collection recommendations – Teradata 14.0 - comment by vasudev
Thank you very much. Got clarified now !!!
View ArticleControlling the Flow of Work in Teradata - comment by geethareddy
hi Carrie/Gary, I was looking at the metrics analysis portlet for wait IO. I can see AVG, MAX & MIN over there, I think i should consider the "AVG Wait CPU" as the right one instead of taking "MAX...
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
Hi Carrie, Great article!! You mention above that the default number of sessions is obtained using a formula that depends on the number of amps, Data Size etc. From my understanding, if my job is a...
View ArticleControlling the Flow of Work in Teradata - comment by geethareddy
hi Carrie/Gary, I was looking at the metrics analysis portlet for wait IO. I can see AVG, MAX & MIN over there, I think i should consider the "AVG Wait CPU" as the right one instead of taking "MAX...
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
Jaison, Assuming the configuration has a moderate or low number of AMPs (as your example does), ARC is most efficient when there is 1 session per AMP since each session can only process 1 AMP at a...
View ArticleControlling the Flow of Work in Teradata - comment by carrie
Geeta, You're more likely to get a response if you post Viewpoint-related questions somewhere people knowedgeable about Viewpoint will see them. I don't think Gary reads the comments on my blog...
View ArticleControlling the Flow of Work in Teradata - comment by geethareddy
I will do that Carrie, thank you. Geeta.
View ArticleUsing the ResUsageSAWT table to Monitor AMP Worker Tasks - comment by...
Hi Carrie, I have couple qns, please share your thoughts. I went through "AMP Worker Tasks and ResUsage Monitoring Teradata 14.0" and I am trying to determine the number of unreserved AWTs on the...
View ArticleIndex Maintenance During Mini-Batch Processing - comment by Raja_KT
1) For minibatch, does it mean that in the first phase of fastload, the table loaded is of NoPI structure and in the second phase, the same table itself TD chooses itself the PI and re-arrange the...
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
Hi Carrie. Thanks for the clarification. To get a little more detail : 1. Is there a guideline on what number classifies as small number of amps and what classifies as large number of amps ? 2. In my...
View ArticleUtility Throttles – You Won’t Regret It! - comment by MarkVYoung
Hi Carrie, We are running Teradata Viewpoint V14.00.00.07-b55 and we are running with TD 13.10 and TTU 13.10, though we do still have some users using mainframe load utilities at version 13.00. Due to...
View ArticleUsing the ResUsageSAWT table to Monitor AMP Worker Tasks - comment by carrie
In your formula, the 4 should be a 10 (total number of AWTs in the expedited reserve pool). There are 3 reserve pools set up for expedited work: Work08, Work09, Work10. You have to add up the AWTs...
View ArticleUtility Throttles – You Won’t Regret It! - comment by mauricio.rodriguez
Hello. Do you know if its possible have a utility throttle wich only applies to some users? What I´d like is for load users to be limited on the number of utilities they can use. But there is a...
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