If any subset of the configuration data is missing or invalid, you may be unable to manage the namespace. Additionally, you may receive many different error messages when you manage DFS Namespaces by using the DFS Namespaces Microsoft Management Console (MMC) snap-in, the Dfsutil.exe tool, or the Dfscmd.exe tool or when a client accesses the namespace. See the Symptoms and error messages section for a list of possible error messages.
DFS – Namespace Cannot Be Queried Error – Remove Delete Orphaned Namespace
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DFS Namespaces configuration data is managed and maintained by management tools that use DFS APIs. The DFS APIs notify the Active Directory domain controllers and the DFS Namespaces servers about configuration changes. This behavior prevents the configuration data from becoming orphaned and guarantees consistency in the configuration data. If the notification process is inhibited, or if the data is otherwise deleted or lost, follow the cleanup steps that are listed here to remove the configuration data. These changes are not recoverable unless you make a backup of the system state for the domain controller or for the namespace server.
For a domain-based DFS namespace, verify the removal of the AD DS namespace configuration data. Before the removal process, you must accurately identify the object that is associated with the malfunctioning or inconsistent namespace. To remove the AD DS namespace configuration data, follow these steps:
On any namespace servers that are hosting the namespace, verify the removal of the DFS namespace registry configuration data. If other functioning namespaces are hosted on the server, make sure that the registry key of only the inconsistent namespace is removed. To remove the DFS namespace registry configuration data, follow these steps:
A shared folder name "namespace" already exists on the server . If the existing shared folder is used, the security setting specified within the Edit Settings dialog box will not apply. To have a shared folder created with those settings, you must first remove the existing shared folder.
\\ domain.com \ namespace1 : The namespace server \ servername \ namespace1 cannot be added. Cannot create a file when that file already exists.
Windows cannot access '\\domain.com\namespace\folder'. Check the spelling of the name. Otherwise, there might be a problem with your network.Additional details:Error code: 0x80070002 The system cannot find the file specified.
Windows cannot access \\domain.com\namespace. Check the spelling of the name. Otherwise, there might be a problem with your network.Additional details:Error code: 0x80070035 The network path was not found.
Replace OrphanedNameSpace with the actual namespace name which is to be deleted. Reboot the server.
If the DFS service does not automatically start, start it with net start dfs at a Command Prompt running as Administrator, or through Services in Administrative Tools of Control Panel.
If the orphaned namespace still appear in DFS Management console, remove the namespace from display.
Proceed to recreate the namespace.
Here's what I done/found on that server(0101) as I have removed it from my DFS Replication and Namespace. I have added server identifiers in parenthesis to try and make this all a little less confusing.- Disabled connections settings in DFS Management snap-in- Deleted Member and selected the option to Delete the member from DFS and remove it as a target in the namespace. After removal I watched for the correct eventlog messages to come through regarding the removal of the server from DFS replication and namespace. Once those event logs appeared I rebooted the server(0101). I also rebooted my namespace server(0125)Several days later I was in the process of following my checklist to decommision the server(0101) and went to verify that the shares on the server(0101) were all removed to insure that no one in the company was writing data to it since it was not longer replicating ot the other partners. That's when I found that I could still address the share. I then uninstalled DFS R2 from the server(0101) and rebooted again. During the reboot I disconnected the Disk Array that housed the data. When the server(0101) came back up I was still able to map to that share and access data. At that point I shut down the server(0101) to try and determine if the share was coming from something locally I missed or possibly the namespace. While the server(0101) was off I again attempted to map to that share and it again came up and I was able to access data. The only possible explanation I could find for this was that the share has somehow survived as a target in my namespace. The namespace that this server(0101) was a target in is still available with other servers acting as targets. I have looked in the registry on the server(0101) and do not see anything related to the share.In desparation I have also tried the Modlink.exe code that was posted on the DFS TEchblog. That didn't remove the share either.I'm not sure where else to look.
Here is my problem:I have removed a server we are decomissioning from a replcation group as well as removed it from being a namespace target using the DFS Management console. I have also removed the file shares from the server and shut down the disk array that housed the data in the replication group. As part of my testing I went to verify that there was no way my user community could access the data since it was no longer live. Much to my dismay I found that when I entered the UNC pathing to test access to the retired data (which I do not want) somehow a namespace target is still recognized for the server and redirected my query to the live data on another server. I have tried removing the old namespace target using the dfsutil method laid out in =kb;en-us;842218 and the share continues to exist. I would like to get this old target removed but have been completely unable to eradicate it.
So that's a standalone DFS root?So that's a standalone DFS root? Having removed everything gracefully, has the DFS service on that machine been restarted, and after it has, does it still have DFS registry entries for the namespace?
- Disabled connections settings in DFS Management snap-in- Deleted Member and selected the option to Delete the member from DFS and remove it as a target in the namespace. After removal I watched for the correct eventlog messages to come through regarding the removal of the server from DFS replication and namespace. Once those event logs appeared I rebooted the server(0101). I also rebooted my namespace server(0125)
Several days later I was in the process of following my checklist to decommision the server(0101) and went to verify that the shares on the server(0101) were all removed to insure that no one in the company was writing data to it since it was not longer replicating ot the other partners. That's when I found that I could still address the share. I then uninstalled DFS R2 from the server(0101) and rebooted again. During the reboot I disconnected the Disk Array that housed the data. When the server(0101) came back up I was still able to map to that share and access data. At that point I shut down the server(0101) to try and determine if the share was coming from something locally I missed or possibly the namespace. While the server(0101) was off I again attempted to map to that share and it again came up and I was able to access data. The only possible explanation I
It's possible that hbase then sees that the namespace regionfile exists and then will not flush the namespace table. (supposition)I'd suggest just removing and then re-adding the hbase service (and delete the remnants in hdfs and zookeeper in between those two steps if need be)
When populating your Distributed File System (DFS) namespace using PowerShell, you might notice a tiny quirk as I did. A .DFSFolderLink file gets left behind when using PowerShell. Using the GUI for DFS Management, this file gets deleted when a folder is created at that same level.
upon further looking into the issue i noticed that in DFS Management Namespace had red X and when i click on it I got an error saying \\domain.com\namespace: The namespace cannot be queried. There is no such object on the server.
I followed it to my demise and did what it said without knowing the outcome. I went to ADSI Edit and i deleted the objects in the CN=Dfs-Configuration folder. when I did that the namespace on DC1 server also started having redx on it. 2ff7e9595c
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