Avamar：SharePoint 备份错误“Windows 结构化异常ACCESS_VIOLATION”
Summary: 此知识库 （KB） 文章提供了由于在后端服务器上同步备份而导致 SharePoint 备份失败的解决方法。
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Symptoms
SharePoint 备份可能会失败或完成，并显示类似于以下内容的异常错误：
2014-04-29 20:13:27 avmossvss Error <0000>: The back-end client SQLBACKEND will be dropped later in the process.
2014-04-29 20:16:27 avmossvss Error <0000>: The back-end plug-in on client SQLBACKEND (10.1.1.1) terminated with errorcode 10019: Externally cancelled by Administrator.
2014-04-29 20:24:33 avmossvss Error <13968>: The back-end client [SQLBACKEND] has failed to backup, so its components will not be displayed for restore.
2014/04/30-01:24:38.88199 mossvss_ctl_sup DEBUG-ERROR <0378> threadimpl::runthread() - Windows structured exception ACCESS_VIOLATION in threadID 20148 Cause
后端数据库服务器上的 SQL 维护作业要么与前端客户端上的 SharePoint 备份同时启动，要么与 SharePoint 备份重叠。然后，这些冲突的备份作业会导致任一或两个作业失败。尽管 SharePoint 备份在前端客户端上启动，但该前端客户端会向每个后端客户端发送子工作订单，以备份 SharePoint 数据库。如果另一个进程锁定 SharePoint 数据库，则 SharePoint 插件无法备份后端客户端上的数据库。
如果 SharePoint 场中的后端客户端注册到与前端客户端不同的 Avamar 网格，也可能导致类似的错误。
Resolution
将 SQL 维护或 Avamar SharePoint 备份的计划作业重新安排到不同的时间范围，以便它们不会重叠。
如果 SharePoint 场中的服务器注册到不同的 Avamar 网格，请将所有服务器重新注册到同一 Avamar 网格。对于联合备份（SharePoint、Exchange、SQL AlwaysOn），不支持将 Windows 客户端注册到不同的 Avamar 网格。
Affected Products
Avamar, Avamar Client for Windows, Avamar Plug-in for SharePoint VSS, Avamar Plug-in for SQLArticle Properties
Article Number: 000165924
Article Type: Solution
Last Modified: 29 Sept 2025
Version: 4
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