Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Example:

```
09:58:11 2020) [sssd[be[*****]] [sdap_nested_group_deref_direct_process] (0x2000): Received 59874 dereference results, about to process them
09:58:11 2020) [sssd[be[*****]] [sdap_nested_group_hash_insert] (0x4000): Inserting [CN=***,...] into hash table [users]
...
09:58:45 2020) [sssd[be[*****]] [sdap_nested_group_hash_insert] (0x4000): Inserting [CN=***,...] into hash table [users]
09:58:45 2020) [sssd[be[*****]] [orderly_shutdown] (0x0010): SIGTERM: killing children
```
-- execution of sdap_nested_group_deref_direct_process() for 59874 entries took 34 seconds

This is unjustifiably long, taking into account this function only rearrange data in RAM.

This is often [partial] reason for internal watchdog to terminate sssd_be.

Upstream PR: https://github.com/SSSD/sssd/pull/5937

Upstream PR: https://github.com/SSSD/sssd/pull/6132

Pushed PR: https://github.com/SSSD/sssd/pull/6132

* `master`
    * a90ef949e51a4177afcb3128e11867ae7b70f439 - SDAP: sdap_nested_group_deref_direct_process(): store 'state->members' in a hash table to reduce computational complexity during "new member" check.
* `sssd-2-7`
    * 64b3871596be2e566524b3e897b88e65ded4a2f7 - SDAP: sdap_nested_group_deref_direct_process(): store 'state->members' in a hash table to reduce computational complexity during "new member" check.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (sssd bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:8325