functions-host-json-aggregator.md

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