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The commit we tested was not the commit we shipped
Sergey Shinder
Sergey Shinder
Sergey Shinder
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Sep 10
The commit we tested was not the commit we shipped
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sergeyshinder
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cicd
#
releaseengineering
#
automation
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2 min read
The log lines we lost exactly when the incident got big
Sergey Shinder
Sergey Shinder
Sergey Shinder
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Sep 10
The log lines we lost exactly when the incident got big
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sergeyshinder
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observability
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logging
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monitoring
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2 min read
The API quota we were sharing with a batch job we did not own
Sergey Shinder
Sergey Shinder
Sergey Shinder
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Sep 10
The API quota we were sharing with a batch job we did not own
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sergeyshinder
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api
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integration
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ratelimiting
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2 min read
The path filter that skipped the tests for the code we changed
Sergey Shinder
Sergey Shinder
Sergey Shinder
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Sep 10
The path filter that skipped the tests for the code we changed
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sergeyshinder
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cicd
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monorepo
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testing
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2 min read
The provider upgrade that changed a default we never set
Sergey Shinder
Sergey Shinder
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Sep 10
The provider upgrade that changed a default we never set
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terraform
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iac
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aws
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2 min read
The DNS setting that turned one external call into five lookups
Sergey Shinder
Sergey Shinder
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Sep 10
The DNS setting that turned one external call into five lookups
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sergeyshinder
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kubernetes
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dns
#
performance
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2 min read
The five minutes when both data centres thought they were primary
Sergey Shinder
Sergey Shinder
Sergey Shinder
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Sep 10
The five minutes when both data centres thought they were primary
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sergeyshinder
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sre
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reliability
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database
1
reaction
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2 min read
The order ID that changed by one digit between two services
Sergey Shinder
Sergey Shinder
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Sep 9
The order ID that changed by one digit between two services
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api
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integration
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json
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2 min read
The canary that never saw the traffic that would have broken it
Sergey Shinder
Sergey Shinder
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Sep 9
The canary that never saw the traffic that would have broken it
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sergeyshinder
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releaseengineering
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deployment
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devops
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2 min read
The hotfix somebody made by hand that our nightly apply reverted
Sergey Shinder
Sergey Shinder
Sergey Shinder
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Sep 9
The hotfix somebody made by hand that our nightly apply reverted
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sergeyshinder
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terraform
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iac
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automation
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2 min read
The graph that stayed flat because nothing was reporting any more
Sergey Shinder
Sergey Shinder
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Sep 9
The graph that stayed flat because nothing was reporting any more
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sergeyshinder
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observability
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monitoring
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prometheus
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2 min read
The required status check that never ran and blocked nothing
Sergey Shinder
Sergey Shinder
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Sep 9
The required status check that never ran and blocked nothing
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cicd
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devops
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testing
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2 min read
The ten minute outage that took six hours to finish
Sergey Shinder
Sergey Shinder
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Sep 9
The ten minute outage that took six hours to finish
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sergeyshinder
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sre
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reliability
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architecture
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reaction
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2 min read
The migration that shipped with the code and locked the table for eleven minutes
Sergey Shinder
Sergey Shinder
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Sep 8
The migration that shipped with the code and locked the table for eleven minutes
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releaseengineering
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database
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deployment
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2 min read
The paginated export that silently skipped records every night
Sergey Shinder
Sergey Shinder
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Sep 8
The paginated export that silently skipped records every night
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api
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integration
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database
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2 min read
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