[Solved] Given this AWS CLI command sequence:aws logs create-log-group --log-group-name TestGroup aws logs create-log-stream --log-group-name TestGroup --log-stream-name Stream1 aws logs put-log-events... | AWS

AWS - CloudWatch

Given this AWS CLI command sequence:

aws logs create-log-group --log-group-name TestGroup
aws logs create-log-stream --log-group-name TestGroup --log-stream-name Stream1
aws logs put-log-events --log-group-name TestGroup --log-stream-name Stream1 --log-events timestamp=1609459200000,message="Start"

What will happen if you try to put log events to a non-existing log stream Stream2 in TestGroup?

AThe log stream will be created automatically and logs added

BThe command will fail with a ResourceNotFoundException error

CThe logs will be sent to the default log stream

DThe logs will be discarded silently

Step-by-Step Solution

Solution:

Step 1: Understand AWS CloudWatch Logs behavior on missing streams
When putting log events, the log stream must exist; otherwise, AWS returns a ResourceNotFoundException error.
Step 2: Confirm no automatic creation
AWS does not auto-create log streams on put-log-events; you must create them explicitly.
Final Answer:
The command will fail with a ResourceNotFoundException error -> Option B
Quick Check:
Put log events to missing stream = error [OK]

Quick Trick: Log streams must exist before sending logs [OK]

Common Mistakes:

MISTAKES

Assuming streams auto-create on log event put
Thinking logs go to a default stream
Believing logs are silently dropped

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Given this AWS CLI command sequence:

Step 1: Understand AWS CloudWatch Logs behavior on missing streams

Step 2: Confirm no automatic creation

Final Answer:

Quick Check:

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