I am also experiencing this and what I consider several very related issues with Spotlight indexing of SMB volumes and with Tags searching. Here is my setup and what I'm experiencing:
* iMac with Mavericks 10.9 (installed it over Lion 10.7)
* Mavericks is working very well and Spotlight indexing and Tags seem to work fine on local hard drive
* iMac is joined to a Windows Active Directory domain and my normal domain user account is not an admin.
* iMac can connect to and successfully use files on SMB file server (Windows Storage Server 2012).
* Note that I've used the smb:\\ protocol to connect to my file server and therefore am using the new SMB2 implementation
* Spotlight searching of my mounted SMB file share "/Volumes/sharename" does not return results of files
* I am able to Tag files on the file server and the Tag color dots do appear in Finder
* However, tagged files on the file server do not appear when using the instant Finder sidebar Tag query, nor do the appear when searching by tag in spotlight
* Per other suggestions, I ran: "mdutil -i on /Volumes/sharename" to turn indexing on on that share, but it failed to help. So, I then ran "mdimport /Volumes/sharename" and despite a few errors, it completed.
* After "mdimport /Volumes/sharename" command, I am now able to do Spotlight searches of my SMB share by filename only. Spotlight will still not find files based on words they contain (I'm mostly testing on PDFs so this should work).
* After "mdimport /Volumes/sharename" command, queries by Tag still do not return results of tagged files from the SMB share
Therefore, what I believe we are seeing is the same old problem where Spotlight does not index SMB shares at all by default, and not completely or consistently even after explicitly requesting it using "mdutil -i on /Volumes/sharename". Unfortionatly, there are hundreds of other Forum threads discussing this for years now (from Snow Leopard onward) with no real solution (I don't consider a third party application a good solution).
One thing that I'm not sure if it's contributing to the problem is that most comments suggest that mdutil and mdimport should be run using "sudo". However, I see a problem with that because most domain users don't have sudoers rights, and even if they did I'm not sure if the resulting indexing process would have the necessary permissions to access the files on the file share since the mount point owner is the normal user account that originally connected to it. So, it this a "catch 22"? Is sudo required to work with Spotlight indexing? And, if so, that user would typically be a local root or administritive account that would not have rights to connect to the SMB share and index the files.
Anyone else with thoughts on Spotlight indexing of SMB shares and as a result Maverics Tagged files not findable on those shares?
Thanks