AWS Certified Developer Associate DVA-C02 Practice Question
Your application is generating logs at a high volume and you have been tasked with identifying occurrences of timeout errors that might be hidden within the vast amount of log data. You decide to use Amazon CloudWatch Logs Insights to parse these logs efficiently. Which of the following CloudWatch Logs Insights queries will accurately find log entries that contain the timeout error message 'TimeoutException', along with the timestamp and the requestId of the associated requests?
filter @logStream = 'TimeoutException' | stats count() by requestId
display @timestamp, requestId where @message = 'TimeoutException'
fields @timestamp, requestId, @message | filter @message like /TimeoutException/
The correct answer uses the fields command to select the relevant information such as @timestamp and requestId, and the filter command to narrow down the search to log entries containing the specific error message 'TimeoutException'. Including @message in the fields allows developers to verify that the filtered log entries contain the correct message. The correct query provides a precise way to sift through the logs for specific error messages, which is necessary for effective troubleshooting.
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What is Amazon CloudWatch Logs Insights?
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Can you explain what '@timestamp' and 'requestId' are in the context of logging?
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AWS Certified Developer Associate DVA-C02
Troubleshooting and Optimization
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