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Stefan Pommerenk

from Hayward, CA
Age ~61
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Related to:
L Z Pommerenk
Connected to:
Ashley R Pommerening, 38David R Pommerehn, 51Keri B Pommerenk, 52Kristine A Pommerening, 57Mike J Pommerening, 67William E Pommering, 77Lori A Pommert, 62Eugene H Pommet, 88Catherine A Pommett, 32Francis A Pommett, 81

Stefan Pommerenk Phones & Addresses

  • 27156 Columbia Way, Hayward, CA 94542 (510) 733-6301 (650) 703-4874
  • Kailua Kona, HI
  • Foster City, CA
  • Redwood City, CA
  • Lahaina, HI
  • Alameda, CA
  • 699 Bounty Dr APT 202, Foster City, CA 94404 (510) 798-2220

Skills

SQL Tuning • Benchmarking • Oracle RAC • Cluster • Enterprise Software • Oracle • High Availability • Hardware Diagnostics • Performance Tuning • Cloud Computing

Languages

German • French • Chinese • English

Emails

s***[email protected]

Industries

Computer Software

Resumes

Resumes

Stefan Pommerenk Photo 1

Stefan Pommerenk

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Location:
San Francisco Bay Area
Industry:
Computer Software
Skills:
SQL Tuning
Benchmarking
Oracle RAC
Cluster
Enterprise Software
Oracle
High Availability
Hardware Diagnostics
Performance Tuning
Cloud Computing
Languages:
German
French
Chinese
English

Publications

Us Patents

Runtime Load Balancing Of Work Across A Clustered Computing System Using Current Service Performance Levels

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US Patent:
20050256971, Nov 17, 2005
Filed:
Jun 27, 2005
Appl. No.:
11/168967
Inventors:
Carol Colrain - Redwood Shores CA, US
Charles Simmons - Redwood City CA, US
Daniel Semler - Belmont CA, US
Stefan Pommerenk - Hayward CA, US
Angelo Pruscino - Los Altos CA, US
Assignee:
ORACLE INTERNATIONAL CORPORATION - REDWOOD SHORES CA
International Classification:
G06F007/00
US Classification:
709238000
Abstract:
Runtime load balancing of work across a clustered computing system involves servers calculating, and clients utilizing, current service performance grades of each instance in the system. A performance grade for an instance is based on performance metrics for that instance, where the computation used may vary by policy. Examples of possible policies include: (a) using estimated bandwidth as a performance grade, (b) using spare capacity as a performance grade, or (c) using response time as a performance grade. Clients distribute work requests across servers in the system as the requests arrive. Work requests can be distributed according to performance grades, and/or flags associated with the performance grades. Automatically and intelligently directing work requests to the best server instances, based on real-time service performance metrics, minimizes the need to manually relocate work within the clustered system.

Performance Metric-Based Selection Of One Or More Database Server Instances To Perform Database Recovery

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US Patent:
20060015542, Jan 19, 2006
Filed:
Jul 13, 2004
Appl. No.:
10/891433
Inventors:
Stefan Pommerenk - Hayward CA, US
Carol Colrain - Redwood Shores CA, US
Wilson Chan - San Mateo CA, US
Angelo Pruscino - Los Altos CA, US
Assignee:
ORACLE INTERNATIONAL CORPORATION - REDWOOD SHORES CA
International Classification:
G06F 12/00
US Classification:
707202000
Abstract:
A method and apparatus for selecting one or more instances to perform database recovery is provided. According to one aspect, one or more performance metrics are determined for each instance on each node in a cluster. Based on these performance metrics, which may be weighted to give one or more metrics more significance relative to the other metrics, an overall score is determined for each instance on each surviving node when a node in the cluster fails. One or more instances with the highest of these scores are selected. The selected instances are assigned the task of performing the database recovery process. Because instances best able to handle to database recovery process are selected, the database recovery process consumes less time, thereby making data accessible in less time after a node fails.
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Stefan Pommerenk from Hayward, CA, age ~61 Get Report