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sasasin/LambdaMemoryUsageByCloudWatchLogs

Created August 8, 2023 04:08
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AWS Lambda Fn のメモリ使用量を CloudWatch Logs Insight で調べるやつ
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LambdaMemoryUsageByCloudWatchLogs
# CloudWatch Logs Insights で調べたいロググループと時間範囲を選んで、以下クエリを実行する。
# bin(24h) は 24h 単位に集約して集計しろという指定。調べたい期間に書き換えて実行する。5m とか 8h とか 2d とか
# https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/CWL_QuerySyntax-Stats.html
fields @timestamp, @message, @logStream, @log
| filter @type = "REPORT"
| stats min(@maxMemoryUsed), avg(@maxMemoryUsed), max(@maxMemoryUsed) by bin(24h)
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