Teradata Performance Dba
4 weeks ago
**Role**: Teradata Performance DBA
**Job Location**: Mumbai/ Pune/ Bangalore
Key Responsibilities
Manage Production/Development databases performance in the following areas
- Review Teradata system reports and provide “performance assessment” report with recommendations to optimize system.
Investigate and quantify opportunities from “performance assessment” reports and
Review for summary tables & data de-normalization opportunities for improving BI reports performance
Monitor using Viewpoint tool for Teradata system performance using different portlets.
Closely monitor the performance of various work groups on the system and make sure data is available to business as per the SLA requirement.
Statistics Management and Optimization
Optimal index analysis - Review Index usage on tables and recommend adding dropping indexes for optimal data access
Review uncompressed tables, analyze its usage and implement compression to save space and reduce IO activity - using various algorithms like MVC/ BLC/ ALC.
Optimize locking statements in views, macros & queries to eliminate blocking contention invest
Review the Spool Limits for the users and recommend optimal limit for the Ad-hoc users to avoid run away queries over consuming system resources.
Check for Mismatch data types in the system and make them unique to avoid costly translations during query processing
Review Set tables and check for the options to convert to MultiSet to avoid costly duplicate row checking operation
Review Large Scan Tables on the system and analyze for using PPI, MLPPI, Compression, Secondary indexes & Join Indexes
Setting up the database hierarchy that includes database creation and management of objects such as users, Roles, Profiles, tables, views
Maintain profiles, roles, access rights and permissions for Teradata user groups and objects.
Well conversant with various ticketing system/production change request/ Teradata Incident management.
Exposure to troubleshoot the FastLoad / Multiload/ FastExport/ BTEQ/ TPump errors, should be good at error handling.
Exposure to DWH Env (Knowledge of ETL/DI/BI Reporting).
Generate periodic performance reports using PDCR and identify bottlenecks with the system performance
Establish PDCR canary performance baselines. Utilize standard canary queries to identify variance from baseline.
Effective usage of TASM & Priority distribution to penalize the resource intensive queries, Give high priority to business critical workloads, Throttling of different workloads for optimal throughput and provide performance reports to check workload management health.
Collaborate with deployment teams and capture the future capacity requirements for upcoming workloads. Create system usage reports using CPPT for monitoring and capacity planning for the higher management
Basic Qualifications
5-8 + years of Teradata DBA experience.
Should have worked in Unix platforms.
Excellent oral and written communication skills in the English language.
Must be willing to provide 24x7 on-call support on a rotational basis with the team.
Must be willing to travel - both short-term and long-term
**Desirable Skills**:
- Understanding of Normalization and De-normalization concept
Ability to write efficient SQL & exposure to query tuning.
Exposure to visualization tools like Tableau, PowerBI.
Should have good working knowledge on UNIX shell, Python scripting.
Should be good at automating various processes.
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