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Advanced Distributed System Design Course - Udi Dahan

Notes by Craig Phillips

Fallacies of Distributed Computing

• There are 11 fallacies of Distributed Computing:
  1. The network is reliable
  2. Latency isn’t a problem
  3. Bandwidth isn’t a problem
  4. The network is secure

5. The topology won’t change

rdagumampan

/*Data for the table regions */
 
INSERT INTO regions(region_id,region_name) VALUES (1,'Europe');
INSERT INTO regions(region_id,region_name) VALUES (2,'Americas');
INSERT INTO regions(region_id,region_name) VALUES (3,'Asia');
INSERT INTO regions(region_id,region_name) VALUES (4,'Middle East and Africa');
 
 
/*Data for the table countries */
INSERT INTO countries(country_id,country_name,region_id) VALUES ('AR','Argentina',2);

rdagumampan

CREATE TABLE regions (
    region_id SERIAL PRIMARY KEY,
    region_name CHARACTER VARYING (25)
);
 
CREATE TABLE countries (
    country_id CHARACTER (2) PRIMARY KEY,
    country_name CHARACTER VARYING (40),
    region_id INTEGER NOT NULL,
    FOREIGN KEY (region_id) REFERENCES regions (region_id) ON UPDATE CASCADE ON DELETE CASCADE

rdagumampan

2020-02-06T05:15:11.4904484Z ##[section]Starting: Script EFCORE CLI
2020-02-06T05:15:11.5339967Z ==============================================================================
2020-02-06T05:15:11.5340308Z Task         : PowerShell
2020-02-06T05:15:11.5340376Z Description  : Run a PowerShell script on Linux, macOS, or Windows
2020-02-06T05:15:11.5340456Z Version      : 2.163.1
2020-02-06T05:15:11.5340516Z Author       : Microsoft Corporation
2020-02-06T05:15:11.5340608Z Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/powershell
2020-02-06T05:15:11.5340683Z ==============================================================================
2020-02-06T05:15:12.6123438Z Generating script.
2020-02-06T05:15:12.6998104Z ========================== Starting Command Output ===========================

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