High traffic observed on AD servers and user logins are delayed or failing

Solution Verified - Updated -

Issue

  • The AD Infrastructure team has seen a spike in traffic to their environment. Majority of the servers identified are RHEL7 servers. We are are noticing errors in the sssd logs that point to a long ldap query being ran on thousands of servers.

Environment

  • Red Hat Enterprise Linux 7
  • SSSD with Active Directory (AD) provider

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