症状
Microsoft Exchange 信息存储 (MSExchangeIS) 服务偶尔会停止响应,并记录以下事件 ID 1002 条目:
Unhandled exception (System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Exchange.Server.Storage.LogicalDataModel.SearchFolder.BaseViewOperatorDefinition(Context context, Mailbox mailbox, IList`1 columnsToFetch, SearchCriteria criteria, Nullable`1 associated)
at Microsoft.Exchange.Server.Storage.LogicalDataModel.SearchFolder.<DoSearchPopulation>d__210.MoveNext()
at Microsoft.Exchange.Protocols.MAPI.MapiViewMessage.<CreateMaterializedRestrictionAndPopulate>d__138.MoveNext()
at Microsoft.Exchange.Server.Storage.MapiDisp.MailboxTaskQueue.RunTaskStep(MailboxTaskContext mailboxTaskContext, QueueItem
原因
由于每天多次生成的未经处理的 System.NullReferenceExceptions 异常,MSExchangeIS 进程停止响应。
解决方案
若要解决此问题,请安装以下累积更新:
Exchange Server 2019 的累积更新 14 或 2019 Exchange Server的更高版本累积更新