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High number of UserErrors on my DynamoDB table
The Amazon CloudWatch UserErrors metric aggregates client-side errors (HTTP 400 status) for all tables and streams in the same Region and account.
The presence of user errors doesn’t necessarily mean that the current table has a 400 error.
Exceptions such as IncompleteSignatureException, ResourceNotFoundException, and ValidationException result in user errors.
The UserErrors metric doesn’t capture ProvisionedThroughputExceededException or ConditionalCheckFailedException.
Here are the applicable statistics for UserErrors:
- Sum: the total number of user errors during the time frame
- SampleCount: the total number of requests that resulted in user errors during the time frame
Resolve user errors on the client side:
- To find the root causes of user errors, note the time frame that’s specified in the UserError metric.
Then, check that time frame in the client’s application logs.
- To prevent user errors, add try-catch or if-then statements to catch and respond to exceptions.
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In short, we saw how our Support Techs resolve High number of UserErrors on my DynamoDB table.
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