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Pack CloudWatch metrics into far fewer PutMetricData calls - #1816
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The CW publisher flushes requests of at most 20 datums per PutMetricData API. This API now accepts upto a 1000 datums, or 1MB, per request. On busy consumers with many shards that meant a flood of tiny API calls, each one separately billed and each one adding to the throttling pressure. Change the default trigger from 200 to 1000 and lift the 20 datum per API to 1000 or 1MB. The result is up to a fiftyfold reduction in PutMetricData calls for the same volume of metrics.
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The CW publisher flushes requests of at most 20 datums per PutMetricData API. This API now accepts upto a 1000 datums, or 1MB, per request. On busy consumers with many shards that meant a flood of tiny API calls, each one separately billed and each one adding to the throttling pressure.
Change the default trigger from 200 to 1000 and lift the 20 datum per API to 1000 or 1MB. The result is up to a fiftyfold reduction in PutMetricData calls for the same volume of metrics.
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