使用详细参数发布服务时，json文件中设置不起作用

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官方帮助里边 使用详细参数发布服务时，json文件中如description的设置等没有起作用是为何？（即使设置了description属性，发布之后在ArcGIS server管理器中查看description描述信息仍然为空）
json文件如下所示：

{

    "serviceName": "Beirut",

    "type": "MapServer",

    "description": "Service showing Beirut parcels and streets.",

    "capabilities": "Map,Query,Data",

    "clusterName": "default",

    "minInstancesPerNode": 1,

    "maxInstancesPerNode": 3,

    "instancesPerContainer": 1,

    "maxWaitTime": 60,

    "maxStartupTime": 300,

    "maxIdleTime": 1800,

    "maxUsageTime": 600,

    "loadBalancing": "ROUND_ROBIN",

    "isolationLevel": "HIGH",

    "configuredState": "STARTED",

    "recycleInterval": 24,

    "recycleStartTime": "00:00",

    "keepAliveInterval": 1800,

    "private": false,

    "isDefault": false,

    "properties": {

        "maxBufferCount": "100",

        "maxImageHeight": "2048",

        "maxRecordCount": "1000",

        "filePath": "c:\\data\\Beirut\\Beirut_Parcels.msd",

        "maxImageWidth": "2048",

        "enableDynamicLayers": "false",

        "cacheOnDemand": "false",

        "dynamicDataWorkspaces": "",

        "useLocalCacheDir": "true",

        "outputDir": "c:\\arcgisserver\\directories\\arcgisoutput",

        "virtualOutputDir": "/rest/directories/arcgisoutput",

        "supportedImageReturnTypes": "URL",

        "isCached": "false",

        "ignoreCache": "false",

        "clientCachingAllowed": "true",

        "cacheDir": ""

    },

    "extensions": ,

    "datasets": 

}