已测试，如果在主节点中都修复了的话，直接改注册表可以搞定。
While deploying SQL Server 2014 cluster in my lab I ran into this problem when I was trying to add second node (Node 2) to SQL cluster.
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Rule Check Result ————————— Rule "SQL Server Database Services feature state" failed. The SQL Server Database Services feature failed when it was initially installed. The feature must be removed before the current scenario can proceed. ————————— OK —————————Above error means that when I installed SQL Server on first cluster node, it didn’t install properly. There were some errors while creating cluster and due to that AddNode is blocked. In my case also this is true because I had an issue with SQL Server Network Name Resource and it didn’t come online earlier. Below was the original error on Node 1
Cluster network name resource ‘SQL Network Name (Balmukund)’ cannot be brought online. The computer object associated with the resource could not be updated in domain ‘MyDomain.com’ for the following reason: Unable to update password for computer account.
The text for the associated error code is: Access is denied.
The cluster identity ‘WinCluster$’ may lack permissions required to update the object. Please work with your domain administrator to ensure that the cluster identity can update computer objects in the domain.
I fixed above error by giving proper permission to cluster computer object on Balmukund (which was the network name of SQL) After fixing that I created SQL Server and SQL Agent manually. Sometime it may also happen that SQL Agent didn’t come online on Node 1 due to some failure and it was fixed after setup was completed.
So, if we see above rule failure then we should go to the first node and check setup log files to see if the installation succeeded or failed. If the first node installation had some failures which were fixed later then we should do a repair of the installation. Repair option can be found under the "Maintenance" page in SQL Server Installation Center (setup). This action will clear the failure state and allow the node addition action.
If you are lazy like me to do repair then you can also check registry key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL12.SQL2014\ConfigurationStateIf you see value as 2 for any component then there were some failures of those components. In most of the cases since issue would be with SQL Server or SQL Agent, we might see 2 for MPT_AGENT_CORE_CNI, SQL_Engine_Core_Inst, SQL_FullText_Adv, SQL_Replication_Core_Inst
Note: that we MUST fix the error on first node before taking shortcut of registry value. Once error is fixed, we can make the value of those component to 1 (means success)
The highlighted value MSSQL12.SQL2014 might vary based on SQL version and Instance name. The first piece for SQL 2008 it would be MSSQL10, for SQL 2008 R2 it would be MSSQL10_50, for SQL 2012 it would be MSSQL11 and for SQL 2014 it would be MSSQL12. Second piece is instance name (for me instance name is SQL2014)
Hope this helps!