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SSSD - sssd_kcm is causing huge cpu loads

SSSD-KCM is a service tool for managing kerberos caches obtained from pam_sso but it can sometimes cause huge cpu-loads (90%+). I'm not sure on why exactly this happens but I think it has something to do with the secrets.ldb (/var/lib/sss/secrets/secrets.ldb) mismatching the current dyanmic-db or cache.

Anyway, the solution is fairly simple and takes less than a minute.

First, stop both sssd-services:

 [root@server ~]# systemctl stop sssd.service sssd-kcm.socket

Now, make a backup of the secrets.ldb, you know just in case:

 [root@server ~]# cp -r /var/lib/sss/secrets /var/lib/sss/secrets.bak
 [root@server ~]# rm -rf /var/lib/sss/secrets

Start the sssd services again:

 [root@server ~]# systemctl start sssd.service sssd-kcm.socket

The 'sssd_kcm' process should not be causing any huge cpu loads anymore.

Feel free to comment and / or suggest a topic.

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Comments

  1. That ops guyJuly 9, 2021 at 6:29 PM

    Am I missing something here? You're just making a backup of the secrets file then restarting.

    ReplyDelete
    Replies
    1. Adrian "Archy"July 12, 2021 at 12:00 PM

      The backup is there just in case anything goes wrong. It can be deleted after you're done.

      Delete
    2. UnknownDecember 14, 2021 at 10:56 AM

      But how come that will reduce the CPU load ?

      Delete

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