functions-host-json-aggregator.md

title	include file
description	include file
author	ggailey777
ms.service	azure-functions
ms.topic	include
ms.date	10/19/2018
ms.author	glenga
ms.custom	include file

Specifies how many function invocations are aggregated when calculating metrics for Application Insights.

{
    "aggregator": {
        "batchSize": 1000,
        "flushTimeout": "00:00:30"
    }
}

Property	Default	Description
batchSize	1000	Maximum number of requests to aggregate.
flushTimeout	00:00:30	Maximum time period to aggregate.

Function invocations are aggregated when the first of the two limits are reached.