AWS DynamoDB Replications Layer
Using the tests associated with the AWS DynamoDB Replications Layer (see Figure 1), you can monitor the following for the target AWS DynamoDB Server:
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Is the age of old unreplicated records too high? If so, then how much?
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Whether or not replication enabled in the target server?
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Are there too many unavailable regions on the target server? If so, then how many?
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Are there too many pending replication by records on the target region?
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Is the replication region available? What is the region response time?
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Is the connection time to the replication region too high?
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Does the region takes too much time to execute the query?
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Is the replication latency on the target region too high?
Figure 1 : The list of tests associated with the AWS DynamoDB Replications Layer