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Bug 1915319

Summary:	SSSD: SBUS: failures during servers startup
Product:	Red Hat Enterprise Linux 8	Reporter:	Alexey Tikhonov <atikhono>
Component:	sssd	Assignee:	Alexey Tikhonov <atikhono>
Status:	CLOSED ERRATA	QA Contact:	Madhuri <mupadhye>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.4	CC:	grajaiya, jhrozek, lslebodn, mzidek, pbrezina, sgoveas, tscherf
Target Milestone:	rc	Keywords:	Triaged
Target Release:	---	Flags:	pm-rhel: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	review, sync-to-jira
Fixed In Version:	sssd-2.4.0-6.el8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-05-18 15:04:21 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Alexey Tikhonov 2021-01-12 12:38:15 UTC

SBUS code triggers following failures during modules startup:

```
[sssd] [sbus_method_handler] (0x2000): Received D-Bus method org.freedesktop.DBus.Hello on /org/freedesktop/DBus
[sssd] [sbus_server_bus_hello] (0x4000): Assigning unique name :1.2 to connection 0xd29790
[sssd] [sbus_issue_request_done] (0x0400): org.freedesktop.DBus.Hello: Success
[sssd] [sbus_dispatch] (0x4000): Dispatching.
[sssd] [sbus_signal_handler] (0x2000): Received D-Bus signal org.freedesktop.DBus.NameOwnerChanged on /org/freedesktop/DBus
[sssd] [sbus_name_owner_changed] (0x4000): Name of owner :1.2 has changed from [] to [:1.2]
[sssd] [sbus_senders_delete] (0x2000): Removing identity of sender [:1.2]
[sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.2' from table     <-- this
```
  --  this is seen in the log of almost every module.

This error message is harmless, but since bz 1893159 changes default log level to 2, this would be seen by default in every setup and can make users worried.

Upstream PR https://github.com/SSSD/sssd/pull/5454 fixes this issues.

Comment 3 Pavel Březina 2021-01-15 11:52:15 UTC

Pushed PR: https://github.com/SSSD/sssd/pull/5454

* `master`
    * bdf461c7577c458d7b2a785b2007c0ccae73e3f7 - SBUS: do not try to del non existing sender

Comment 7 Madhuri 2021-01-22 09:24:43 UTC

Reproduce with:

[root@ci-vm-10-0-100-128 sssd]# rpm -qa sssd
sssd-2.4.0-5.el8.x86_64

Verification steps:

1. Remove debug_level parameter from sssd.conf

[root@ci-vm-10-0-100-128 sssd]# cat /etc/sssd/sssd.conf 
[sssd]
config_file_version = 2
services = nss, pam
domains = example1

[domain/example1]
ldap_search_base = dc=example,dc=test
id_provider = ldap
auth_provider = ldap
ldap_user_home_directory = /home/%u
ldap_uri = ldaps://server.example.com
ldap_tls_cacert = /etc/openldap/cacerts/cacert.pem
use_fully_qualified_names = True

2. delete logs and restart the sssd

[root@ci-vm-10-0-100-128 sssd]# systemctl stop sssd; rm -rf /var/log/sssd/*; systemctl start sssd


3. Check error message in logs

[root@ci-vm-10-0-100-128 sssd]# grep 'sss_ptr_hash_delete' . -ir
./sssd.log:(2021-01-14  6:02:38): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.2' from table
./sssd.log:(2021-01-14  6:02:38): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.3' from table
./sssd.log:(2021-01-14  6:02:38): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.domain_example1' from table
./sssd.log:(2021-01-14  6:02:38): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.domain_implicit_5ffiles' from table
./sssd.log:(2021-01-14  6:02:39): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.4' from table
./sssd.log:(2021-01-14  6:02:39): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.pam' from table
./sssd.log:(2021-01-14  6:02:39): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.5' from table
./sssd.log:(2021-01-14  6:02:39): [sssd] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.nss' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.2' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.3' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.pam' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.nss' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.4' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.pam' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.5' from table
./sssd_implicit_files.log:(2021-01-14  6:02:39): [be[implicit_files]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.nss' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.2' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.3' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.nss' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.pam' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.4' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.pam' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.5' from table
./sssd_example1.log:(2021-01-14  6:02:39): [be[example1]] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.nss' from table
./sssd_pam.log:(2021-01-14  6:02:39): [pam] [sss_ptr_hash_delete] (0x0020): Unable to remove key ':1.5' from table
./sssd_pam.log:(2021-01-14  6:02:39): [pam] [sss_ptr_hash_delete] (0x0020): Unable to remove key 'sssd.nss' from table

Verified with:
[root@ci-vm-10-0-107-156 ~]# rpm -qa sssd
sssd-2.4.0-6.el8.x86_64

[root@ci-vm-10-0-107-156 sssd]# grep 'Unable to remove key' . -ir
[root@ci-vm-10-0-107-156 sssd]# echo $?
1

[root@ci-vm-10-0-107-156 sssd]# grep 'sss_ptr_hash_delete' . -ir
[root@ci-vm-10-0-107-156 sssd]# echo $?
1

Thus from above marking, this verified.

Comment 9 errata-xmlrpc 2021-05-18 15:04:21 UTC

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-2021:1666