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the product is no longer active in Red Hat Bugzilla.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.
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/1251
Dear SSSD team,
we are experiencing an issue with SSSD, where `sssd_be` is consuming a lot of memory. The RAM consumption grows continuously in a certain setup where a SFTP/SSH login happens every 30 seconds.
During a time period of 17 hours the memory usage of SSSD increased by 20% respectively 200MB (1024MB system memory).
After restarting SSSD the memory consumption goes back to normal.
\\The attached `debug log file` shows the login sequence of the mentioned SFTP user.
Since we don't have a large LDAP directory (~60 Unix users / ~20 Unix groups) I suppose we might have a misconfiguration in our `sssd.conf` (see attachments).
\\
When I remove the `cache` file of SSSD and run an `id` on 50 LDAP users the memory consumption grows only about ~5MB. The memory usage stays the same even when I run the `id` command over and over again (executed at least 20 times).
The commands `getent passwd` and `getent group` also do not increase the memory usage of SSSD.
\\
Information about the environment/system:
* LDAP is ID and AUTH provider
* LDAP schema is rfc2307bis
* RHEL 6.2 / CentOS 6.2
* sssd-client-1.5.1-66.el6_2.3.i686
* sssd-1.5.1-66.el6_2.3.i686
Attachments:
* sssd.conf (sanitized)
* sssd_EXAMPLE.log (sanitized)
* sssd_mem_usage.png (graph)
\\
If you need any further debug information please let me know.\\Many thanks for looking into this issue.
Kind regards,
mayak