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What is AddressBookSourceSync?

35359 Views 73 Replies Latest reply: Mar 10, 2014 3:07 PM by alexandragold RSS
  • SSSLICK Calculating status...
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    Dec 22, 2012 5:42 PM (in response to Arap Rotciv)

    Well, it doesn't slog the computer anymore, but now only one group of contacts is showing up from iCloud?

    Did I just lose 13k contacts?

  • SSSLICK Level 1 Level 1 (0 points)
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    Dec 22, 2012 5:45 PM (in response to rsfromhome)

    I don't see iCloud spinning on the contacts app either.

  • SSSLICK Level 1 Level 1 (0 points)
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    Dec 22, 2012 5:44 PM (in response to rsfromhome)

    It has a subgroup, but I can't see my full contacts?

  • saint-georges Level 1 Level 1 (0 points)
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    Dec 30, 2012 2:17 AM (in response to cdevers)

    I did follow the procedure, but if it seems that the AddressBookSourceSync nightmare is under control, I still have problem with Mail. It is linked to the AddressBookSourceSync.

    Everytime that there is a slight change in the Adress Book (now call Contacts), then comes AddressBookSourceSync back and freeze for a few second to a couple of minutes…

    It is extremely annoying.

    Does others have the same trouble ?

    Any help ?


    I recall struggling with these trouble about Adress Book since MobileMe. I do think that all that is now linked to iCloud.

    I do thing that the handling of the Cloud comes with bad decision fron Apple. Google with a much better understanding of the cloud process will soon give a big blow into the Apple market. It doesn't mean that Google cloud is perfect. I prefer to use Dropbox to Google doc. But it is obvious that Google understand better and tries harder.


  • saint-georges Level 1 Level 1 (0 points)
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    Dec 30, 2012 3:15 AM (in response to saint-georges)

    For those who want to do the experience :

    1. Open Activity Monitor on the side
    2. Open Mail
    3. From any mail that select the sender email adress
      1. You can add this email adress to the adress book
      2. Then you can go straight tho this entry in the adress book
      3. While you modify or add something in this entry…
    4. See in the Activity Monitor
      1. AddressBookSourceSync appears generally going insane
      2. Then comes Mail and it won't take long for mail to become red
      3. You then are stuck with a frowen Mail app !

    It might last for some second or sometime forever…!

    You just have to quit hard way the Mail app.


      1. capture_ 2012-12-30 à 12.13.02.png
  • FCPeditor Calculating status...
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    May 16, 2013 2:23 PM (in response to rsfromhome)

    OK, I bought a 2011 17" MBP last Decembere. I have 16 of RAM. I bought a 256Gig SSD drive. I installed 10.8.3.  This thing should smoke pretty much. Little did I know that when i turned on iCloud. Everything got SLOOOOOOW. When typing, it would take 5 seconds to get the 3rd letter out. Opening a folder would take 5 seconds. A 25 year Mac man here was ready to go to the Dark Side.......say it aint so. I dont know what prompted me to look at Activity Monitor but it showed of all my current running proceses, like 25 maybe, AddressbookSoureceSync was using 98% of CPU. I went to Sys Prefs and turned off iCould sync with Addressbook (after 1st backing up my contacts to the local HD) and VIOLA........back to normal as it should be. Too bad Apple did not seem to every find an offical fix for this. No more iCloud syncing to my iPhone for now. But at least I have a good MBP running. Hope this helps someone else.

  • FCPeditor Level 2 Level 2 (150 points)
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    May 16, 2013 3:05 PM (in response to FCPeditor)

    the question do you sync your laptop addressbook with your iPhone. Come on Apple.

  • marianfromhermagor Calculating status...
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    May 17, 2013 1:49 AM (in response to FCPeditor)

    See my reply on December 10, 2011 in this thread.

    I had the same problem. It was fixed thanks to ISDAY.

    Since then, iCloud sync runs just fine - no hassles with AddressBookSourceSync anymore.

  • dazmatron Calculating status...
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    May 21, 2013 2:53 PM (in response to rsfromhome)

    I updated to Mountain Lion 10.8.3 on my late 2008 MBP from 10.6.8 over the weekend and came up against this all consuming system memory issue as mentioned many times in this thread. I attempted to follow ISDAY's instructions from way back in 2011 - however things have changed  in 10.8.3 - there is no address book in library/application support nor is there contacts in library/application support. It also appears there are no separate libraries for users so I cannot access users/me/library.

    I am having to open activity monitor every time I log in and shut down the addressbooksync helper - which opens again if I try to do anything that requires its attention (such as mail or accessing etc). I'd like to follow ISDAY's original post but would really appreciate if anyone out there can help me add the extra twists necessary to get it going in 10.8.3 - Anyone?

    Really surprised with Apple on this one - big BooBoo as far as I'm concerned. Not impressed.

  • dazmatron Level 1 Level 1 (0 points)
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    May 21, 2013 3:18 PM (in response to dazmatron)

    ok mountain and mountain lion hide the library by default.

    you can unlock them in terminal using this command:


    chflags nohidden ~/Library/


  • FCPeditor Level 2 Level 2 (150 points)
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    May 21, 2013 5:02 PM (in response to dazmatron)

    do you know the Finder, go to the GO menu......then hold OPTION and you will see the "LIBRARY" for the current user, from there do what the instruction say.   See pic below.


    Delete everything in the folder except the "configuration.plist" file. Keep following the directions, your problem will be solved. Hope this helps.



    Screen Shot 2013-05-21 at 7.59.56 PM.jpg

  • dazmatron Level 1 Level 1 (0 points)
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    May 22, 2013 11:44 AM (in response to dazmatron)

    All sorted - thank you all! ISDAY particularly.

  • sabes1957jd Calculating status...
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    Feb 22, 2014 6:43 AM (in response to lsday)

    lsday: i am running osx 10.9.1 and am having the issue referred to in this thread, but can't get to the initial step of exporting to .vcard format. when i select file/export, it gives the option to export contacts in a tab delimited text format or in a mac date (.olm) format. which should i select? is the rest of the procedure the same? thanks so much!

  • alexandragold Calculating status...
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    Mar 10, 2014 3:07 PM (in response to lsday)

    I have the same problem as the rest of you. But unfortunately I can't seem to fix this problem with the tips posted by lsday.


    When I go to Application Support in User there is no Address Book, so I can't really finish the last step. And (even though it pops up all the time) there is no trace of AddressBookSourceSync in the Activity Monitor.


    Also, it's not only the AddressBookSourceSync that pops up and want's access to my keychain, sometimes it's "" instead. Does anyone have any tips? Would be so happy if someone could help me out. The constant pop ups are starting to get extremely annoying...

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