mongodb - MongoDB Web 界面上的 ELMAH 抛出异常

Question

在 MongoDB nuget 包上使用 ELMAH 配置日志到 MongoDB 之后它成功地登录到 MongoDB 集合，但是当尝试访问 Web 界面时，它给了我以下异常:

Command 'create' failed: a collection 'collectionname' already exists (response: { "note" : "the autoIndexId option is deprecated and will be removed in a future release", "ok" : 0.0, "errmsg" : "a collection 'collectionname' already exists", "code" : 48, "codeName" : "NamespaceExists" })

我不知道为什么每次它都尝试创建集合elmah 的网络配置配置:

 <sectionGroup name="elmah">
      <section name="security" requirePermission="false" type="Elmah.SecuritySectionHandler, Elmah" />
      <section name="errorLog" requirePermission="false" type="Elmah.FallbackErrorLogSectionHandler, Elmah.FallbackErrorLog" />
      <section name="errorMail" requirePermission="false" type="Elmah.ErrorMailSectionHandler, Elmah" />
      <section name="errorFilter" requirePermission="false" type="Elmah.ErrorFilterSectionHandler, Elmah" />
    <!--<section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah" />-->
  </sectionGroup>

 <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules>
      <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
      <add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler" />
      <add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler" />
    </modules>
  </system.webServer>
<elmah>


  <security allowRemoteAccess="true" />

  <errorLog type="Elmah.FallbackErrorLog, Elmah.FallbackErrorLog">
    <add type="Elmah.MongoErrorLog, Elmah.MongoDB" connectionStringName="elmah-mongodb"  />
    <add type="Elmah.XmlFileErrorLog, Elmah" logPath="C:\MyApp\logs\ElmahFallback" />
  </errorLog>
</elmah>
<location path="logs" inheritInChildApplications="false">
    <system.web>
      <httpHandlers>
        <add verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" />
      </httpHandlers>


      <authorization>
        <!--<allow roles="*" />-->
        <allow users="*" />  
      </authorization>

    </system.web>
    <system.webServer>
      <handlers>
        <add name="ELMAH" verb="POST,GET,HEAD" path="logs" type="Elmah.ErrorLogPageFactory, Elmah" preCondition="integratedMode" />
      </handlers>
    </system.webServer>
  </location>

Answer 1

这个错误是MongoDB 3.2及以上的decrepted function(创建新集合时与索引相关)，尝试3.0 mongos的版本或更改mongo的驱动程序。我在 visual studio nuget 包控制台中使用这个包 Install-Package elmah.mongodb，在 c#.net 中使用 mongo 3.0 版本，它运行完美。

希望对你有帮助!!!祝你好运。