Persistent AddressBookSourceSync-related Errors

Good morning,

I am using a Mavericks-based 2012 MacMini as my client connected to a 2010 MacMini server. The problem I'm going to describe has been present in similar forms when the server was configured with ML/2.2.2 and now with Mavericks/3.0.1. I have also rebuilt the user's home folder from scratch.

One recent change in the behavior is the Safari piece. When I try to enter data into a webpage (I've had this happen with a couple of websites at least), Safari seems to try to perform the autofill magic but then gives a spinning beach ball for several mins until it times out. Here is the log from the latest:

12/19/13 7:32:00.949 AM Safari[443]: 0x6080000bf2c0: ManagedObjectContext (ABAddressBook) could not create the store at path: </Network/Servers/<server1.example.com>/Volumes/<path_to_user>/Library/Application Support/AddressBook/Sources/<a_uid>/AddressBook-v22.abcddb> - creation error: Error Domain=NSCocoaErrorDomain Code=134090 "A timeout error occurred while connecting to the persistent store." UserInfo=0x6000008641c0 {NSSQLiteErrorDomain=5, NSUnderlyingException=error during SQL execution : The database operation timed out after 240.03 seconds.} {
    NSSQLiteErrorDomain = 5;
    NSUnderlyingException = "error during SQL execution : The database operation timed out after 240.03 seconds.";
}
12/19/13 7:32:02.579 AM AddressBookSourceSync[828]: 0x7fd29a562350: ManagedObjectContext (ABAddressBook) could not create the store at path: </Network/Servers/<server1.example.com>/Volumes/<path_to_user>/Library/Application Support/AddressBook/Sources/<a_uid>/AddressBook-v22.abcddb> - creation error: Error Domain=NSCocoaErrorDomain Code=134090 "A timeout error occurred while connecting to the persistent store." UserInfo=0x7fd29a405ce0 {NSSQLiteErrorDomain=5, NSUnderlyingException=error during SQL execution : The database operation timed out after 240.28 seconds.} {
    NSSQLiteErrorDomain = 5;
    NSUnderlyingException = "error during SQL execution : The database operation timed out after 240.28 seconds.";
}
12/19/13 7:32:02.579 AM AddressBookSourceSync[828]: [CardDAVPlugin-ERROR] -[PHXCardDAVSource addressBook] returning nil!
12/19/13 7:32:12.689 AM AddressBookSourceSync[828]: Error reading store metadata: Error Domain=NSCocoaErrorDomain Code=134000 "Failed to save. Unknown store type, format, or version."
12/19/13 7:32:12.691 AM AddressBookSourceSync[828]: Database file is empty: /Network/Servers/<server1.example.com>/Volumes/<path_to_user>/Library/Application Support/AddressBook/Sources/<a_uid>/AddressBook-v22.abcddb

Independent of Safari, AddressBookSourceSync is generating the same errors every eight mins or so, but not precisely.

Inside the source directory, there are currently nine directories, each with a unique uid for the source sync reference. I am only syncing Contacts with this one server, and NO iCloud. As a side note, I have been using Profile Manager to create configurations for this user account and so I have been adding and deleting acounts pointing to this addressbook on the server; but it seems the system should delete those old references? Regardless, the uid in the logged error is associated with the current account set up and it is the only folder of the nine that is not empty. However, ls -la on that folder produces a listing of files plus some extras which are disconcerting:

ls: .afpDeleted23320655: No such file or directory
ls: .afpDeleted23320665: No such file or directory
total 32

The users' directories are on an external RAID which passes Disk Utility's verify disk command.

The server's log isn't showing anything at the precise times of the errors on the client, but I am seeing a lot of entries matching this:

servermgrd: nsc_smb XPC: hanle_event error : < Connection invalid>

I do not know if they are related. When the ML/2.2.2 server was in place, I was sharing (if I recall) both AFP and SMB, but was sharing home directories over AFP. In this configuration, I'm trying more of the default Apple settings which means sharing over SMB for home directories. Since the addressbooksourcesync errors occured in both configurations, I'm not really looking at smb as the culprit, but .... ????

I welcome any ideas and help.

Thanks!

Tim