patternMinor
Why are some write requests throttled whereas the average consumed write capacity is below the provisioned write capacity?
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whythearecapacityaveragewriteconsumedprovisionedsomebelow
Problem
I see the following graphs in one of my DynamoDB table:
Between 2/15 9:30 and 2/15 10:00 some write requests were throttled while the average consumed write capacity was below the provisioned write capacity. How comes?
Between 2/15 9:30 and 2/15 10:00 some write requests were throttled while the average consumed write capacity was below the provisioned write capacity. How comes?
Solution
It doesn't have to be a hot key or partitioning issue where the total provisioned write capacity is spread across the partitions.
You have a 5 minute average chart there. Technically you could have a case where you do have zero write activity for a 4:50 minute period and then have 10 seconds of ridiculous amounts of writes. These will most likely exceed you provisioned writes while the average still is below the limit.
You have a 5 minute average chart there. Technically you could have a case where you do have zero write activity for a 4:50 minute period and then have 10 seconds of ridiculous amounts of writes. These will most likely exceed you provisioned writes while the average still is below the limit.
Context
StackExchange Database Administrators Q#91991, answer score: 4
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