What is the function of Replicatord in macOS Sequoia 15?

I am receiving messages regarding a process or app, "replicatord". What is this in macOS Sequoia 15?



[Re-Titled by Moderator]

MacBook Pro (2017 – 2020)

Posted on Sep 16, 2024 4:19 PM

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Posted on Nov 26, 2024 11:07 PM

replicatord on macOS is a background daemon associated with Apple's iCloud services. It plays a role in synchronizing files and data between your Mac and iCloud. Specifically, it supports:

  1. iCloud Drive: Ensuring files stored in iCloud Drive are synced between your Mac and other devices.
  2. Desktop and Documents Folders Sync: Keeping these folders updated if you've enabled iCloud synchronization for them.
  3. Optimization: Managing disk space by offloading infrequently used files to iCloud while keeping them accessible.

This daemon is a core part of macOS's integration with iCloud and generally runs without user intervention. If you notice high resource usage or issues related to replicatord, it might indicate:

  • A large sync operation (e.g., uploading or downloading many files).
  • Problems with your iCloud connection or account.

You can monitor or troubleshoot it by:

  1. Checking Activity Monitor for resource usage.
  2. Reviewing iCloud settings in System Settings > Apple ID > iCloud.
  3. Verifying your internet connection.

If issues persist, restarting your Mac or signing out and back into iCloud can often resolve synchronization problems.

46 replies

Sep 24, 2024 12:33 PM in response to geniene64

geniene64 wrote:

Unfortunately, my job's policy is for everyone's computer to operate with Norton 360, both Windows and MacOS, otherwise, I wouldn't have the extra 3rd party security. It is super annoying to have to constantly "allow" these things. But I can't get around it. I am just hoping that it's not doing more harm than good.

Windows isn't any different than the Mac in this respect. Microsoft adds new apps and new services all the time. Do you have to constantly "allow" those on Windows? Why not?

Sep 24, 2024 1:18 PM in response to geniene64

A Mac will never work properly with "Norton" installed. You can either accept that fact, violate your employer's policy and uninstall it, tell your employer to amend that policy, or buy a Windows PC for your job. There are no other choices.


I am just hoping that it's not doing more harm than good.


"Norton" can do nothing good on Macs. Expressed mathematically,


harm : good = ∞


Rule 1 of Macs is don't install junk.

Oct 21, 2024 8:00 AM in response to rotorblades

I don't have Norton installed but my Little Snitch firewall gives me the warning to be seen in my screenshot below.


I'm on an Intel MacBook Air running Mac OS 15.0.1 (24A348).


The problem I'm having is not that much about the process but WHICH thrid party is trying to make the connection to my MacBook. Up until a few years ago we would just copy the IP address from the notification and would know right away WHO is trying to connect or to which outside address one of our apps whants to connect to.


BUT HOW are we going to find out since those new addresses were introduced? How will I know WHO 2001:9e8:1fc:6700:c1dc:6171:c1c0:f50b is that wants to connect via UDP-Port 59609 to my Mac?


Dec 8, 2024 12:50 PM in response to Problem_solution

here is what I found after running a scan on the IP


  1. IP Address: 151.101.3.6
  • Ports Open:
  • Port 80 (HTTP-Proxy): Uses the Varnish caching server.
      • The Fastly error suggests this is part of a content delivery network (CDN).
  • Port 443 (HTTPS):
    • Certificate details suggest it’s related to Apple Inc. with a SAN list containing domains like api.music.apple.com and others.
  1. SSL Certificate Information:
    • Common Name (CN): api.music.apple.com
  • Subject Alternative Names (SANs): Includes several Apple services such as:
      • api.shazam.apple.com
      • api.books.apple.com
  • api.music.apple.com
  • Certificate issued for use starting 2024-12-06 and expiring on 2025-04-08.
  1. Service Fingerprints:
    • Port 443 appears to be misconfigured or inaccessible without the correct Host header. It returns a 421 Misdirected Request, meaning the request was sent to a server unable to handle it for the specific hostname requested.
  1. Operating System Detection:
  • Unreliable but suggests:
    • iOS/macOS (Darwin): Likely running on a CDN system managed by Apple and hosted on Fastlyinfrastructure.
  1. Traceroute:
    • The route shows the connection traversing several Spectrum and Charter Communications nodes before reaching Fastly’s CDN node at 151.101.3.6.


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What is the function of Replicatord in macOS Sequoia 15?

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