我正在运行一个具有2个Active Directory Windows2012控制器的testing环境，这个控制器可以开启或closures。 但是，我很难破译repadmin / showrepl和repadmin / replsummary输出。 输出显示10分钟前的问题，但根据事件日志，问题似乎已被清除。
下面是一个例子。 目前复制似乎只是通过手动添加对象，而他们在其他DC显示。 事件日志错误和警告似乎已经清除。 然而，我主要关心的是能够实时检查Active Directory服务的健康状况，而不会引用过去的错误或错误，只要一切都恢复正常，错误就不会被清除。
C:\Users\administrator>repadmin /showrepl Repadmin: running command /showrepl against full DC localhost Default-First-Site-Name\WIN2012-1 DSA Options: IS_GC Site Options: (none) DSA object GUID: 4d0f615f-2568-4acb-a4d7-fda9e8c303ff DSA invocationID: 4d0f615f-2568-4acb-a4d7-fda9e8c303ff ==== INBOUND NEIGHBORS ====================================== DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 13:16:30 was successful. CN=Configuration,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:52:26 was successful. CN=Schema,CN=Configuration,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:47:28 failed, result 8524 (0x214c): The DSA operation is unable to proceed because of a DNS lookup failu re. 1 consecutive failure(s). Last success @ 2016-11-30 22:45:07. DC=DomainDnsZones,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 13:08:01 was successful. DC=ForestDnsZones,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:47:28 failed, result 8524 (0x214c): The DSA operation is unable to proceed because of a DNS lookup failure. 1 consecutive failure(s). Last success @ 2016-11-30 22:45:07. Source: Default-First-Site-Name\WIN-2012-2 ******* 1 CONSECUTIVE FAILURES since 2016-11-30 22:45:07 Last error: 8524 (0x214c): The DSA operation is unable to proceed because of a DNS lookup failure. repadmin /replsummary Replication Summary Start Time: 2016-12-01 13:19:35 Beginning data collection for replication summary, this may take awhile: ..... Source DSA largest delta fails/total %% error WIN-2012-2 14h:34m:28s 2 / 5 40 (8524) The DSA operation is unable to proceed because of a DNS lookup failure. WIN2012-1 14h:20m:18s 2 / 5 40 (1908) Could not find the do main controller for this domain. Destination DSA largest delta fails/total %% error WIN-2012-2 14h:20m:18s 2 / 5 40 (1908) Could not find the do main controller for this domain. WIN2012-1 14h:34m:28s 2 / 5 40 (8524) The DSA operation is unable to proceed because of a DNS lookup failure. 另外，以下3个testingshowrepl显示有什么区别？
DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 13:16:30 was successful. CN=Configuration,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:52:26 was successful. CN=Schema,CN=Configuration,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:47:28 failed, result 8524 (0x214c): The DSA operation is unable to proceed because of a DNS lookup 1 consecutive failure(s). Last success @ 2016-11-30 22:45:07.
repadmin /replsummary必须显示历史数据，从成功和失败的滚动caching，因此/replsummary将继续显示旧的错误一段时间，即使你确实已经修复它。 我不喜欢/replsummary ，从来没有使用它。
/showrepl另一方面，是实时的，因为它得到。 也许你仍然在/showrepl看到旧的错误，因为从那以后，区议会还没有试图复制任何东西？
你可以从两个DCs repadmin /syncall /APed没有任何错误？ 如果你不能，那么你还没有修复它。
另外，以下3个testingshowrepl显示有什么区别？
DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 13:16:30 was successful. CN=Configuration,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:52:26 was successful. CN=Schema,CN=Configuration,DC=tom,DC=local Default-First-Site-Name\WIN-2012-2 via RPC DSA object GUID: 666eacaf-7bfd-428f-bc21-4bc067207f44 Last attempt @ 2016-12-01 12:47:28 failed, result 8524 (0x214c): The DSA operation is unable to proceed because of a DNS lookup 1 consecutive failure(s). Last success @ 2016-11-30 22:45:07.
域控制器承载几个不同的命名上下文或分区。 它们类似于数据库中的逻辑表或视图。 这些分区中的每一个分别被复制。 第一个， DC=tom,DC=local是你的域分区。 这是您的用户和组属于该域的地方。 来自其他域的用户和组（如果有的话）将不在该分区中。
CN=Configuration,DC=tom,DC=local是森林范围内的命名上下文复制到森林中的所有DC。 它包含有关整个森林的configuration信息，如AD网站，PKI信息等。
CN=Schema,CN=Configuration,DC=tom,DC=local也是全林范围的命名上下文。 整个森林只有这个分区的一个版本。