Continuous 'Service Exited in system log

I have discovered that it has to do with the indexing of my Lacie 5Tb USB drive, which I use as a time machine disk. As soon as I disconnect it, the messages stop. As soon as I connect they reappear. Excluding it from Spotlight is not possible, it being a time machine disk.

It also seems to solve the problem of high CPU usage by the mail process. Not that I understand why that is.

re: Bug Sur 11.6.1

I was getting these messages one per second, for who knows how many months... I never checked until for some still unknown reason my circa 2017 iMac turned off by itself yesterday. I re-started, went to the console log and was appalled to see zillions of these messages.

I'm not sure what mds and mds-stores do.

For several weeks I've noticed a lot of 'flashing' of the light on the Time Machine external drive. I never paid attention to is since I turned off automatic Time Machine backups.

I did a total shutdown and unplugged my Time Machine backup drive and re-started.

Now I get one or two messages per minute, not one per second.

Nov 23 07:35:23 xxxxx com.apple.xpc.launchd[1] (com.apple.mdworker.shared.10000000-0300-0000-0000-000000000000[843]): Service exited due to SIGKILL | sent by mds[97]

Maybe I have a faulty external drive?

Who knows... time for a new iMac... waiting for the new generation to announce and ship.

It could be a bug in Spotlight as others have said so maybe re-indexing might help... but I doubt it.

Sometimes shutdown can take a long time. While that may be an indication that something is awry, it's better not to get impatient and interrupt it. I'm talking like 5 or 10 minutes here. Be patient and see if it will eventually shut down. That will be a better clue than simply crashing it, which might exacerbate things.

I've been trying to track down why my MacBookPro9,2 (a 2012 model though mine was built in 2015) is suddenly acting like it has a failing drive — sluggishness, beachballs, etc. As part of my investigations I ran across all the spotlight errors in the system log.

I never believed that the MDS errors were causing the sluggishness — I agree with Steve that they are possibly just a symptom of some other underlying problem, most likely an incompatible app or extension; or even harmless. From other comments, I gather that disabling Spotlight or dragging all your drives into the Privacy window will eventually cause it to stop, though there may be a delay. The big question for those of you who have seen the error messages stop: has this accompanied a cessation of your other problems like overheating, sluggishness, beachballs, etc.?

In my case, I have been using a 1 TB Samsung SSD that was going on five years old and getting full, so I just bought a new 2 TB Samsung SSD, installed a fresh Catalina, and migrated my main user account. So far the new SSD is attached externally so there will definitely be speed issues due to the USB connection. I'm still seeing beachballs and stuff so the next step is to actually install the drive inside the computer and see what happens.

Other troubleshooting steps would be running in safe mode, which, while you won't be able to do everything you normally do, should at least be an indication of whether a third-party extension is causing the problem. If so, the next step would be the entertaining process of deleting everything and adding stuff back in slowly.

Incidentally, I wouldn't necessarily call this a bug and I certainly can't fault Apple for not having an instant solution. As an independent Mac consultant for 25+ years, I saw firsthand the amazing array of weird things people can install on their computers.

Yes I found the same - I tried to experiment with exclusions, but it was taking too long to pin down.

I raised feedback item #FB7733177 a few hours ago (now on 10.15.6b2) with some mds logs etc...

Please can I help me, I have same problem.

Same problem in MacBook Pro 16, 2019...

Sorry I don't understand.

more tonight it did not go out. After several minutes it turned itself off and on again with a kernel panic message

Don't open Console. You won't know it is there. Console is full of meaningless messages that often repeat.

Is there something else happening that made you look into Console?

To look for other possible software issues run EtreCheck and post the report here using the "Additional Text" icon which looks like a piece of paper.