Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.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

Bug 2102222

Summary: rpcbind.socket dies upon try-restart, causing related services (e.g. ypbind) to become unavailable
Product: Red Hat Enterprise Linux 9 Reporter: David Tardon <dtardon>
Component: systemdAssignee: systemd maint <systemd-maint>
Status: CLOSED MIGRATED QA Contact: Frantisek Sumsal <fsumsal>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 9.0CC: dtardon, systemd-maint-list
Target Milestone: rcKeywords: FutureFeature, MigratedToJIRA, Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2023-09-21 11:52:36 UTC Type: Story
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description David Tardon 2022-06-29 13:37:39 UTC
This bug was initially created as a copy of Bug #2100395

Description of problem:

Upon rpcbind package update the following command is issued from rpm scriptlet:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
systemctl try-restart rpcbind.service rpcbind.socket
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

This ends up having the rpcbind.socket fail to start, because rpcbind.service is already active and also hijacked the sockets.

The journal shows some kind of race condition between the service and the socket:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
# journalctl -b -u rpcbind.service -u rpcbind.socket -o short-precise
-- Logs begin at Thu 2022-06-23 10:59:56 CEST, end at Thu 2022-06-23 11:01:01 CEST. --
Jun 23 11:00:00.387955 vm-rhel8 systemd[1]: Starting RPC Bind...
Jun 23 11:00:00.454849 vm-rhel8 systemd[1]: Started RPC Bind.
Jun 23 11:00:35.378595 vm-rhel8 systemd[1]: Stopping RPC Bind...
Jun 23 11:00:35.380285 vm-rhel8 systemd[1]: rpcbind.service: Succeeded.
Jun 23 11:00:35.380591 vm-rhel8 systemd[1]: Stopped RPC Bind.

Jun 23 11:00:35.381691 vm-rhel8 systemd[1]: Starting RPC Bind...

--> This is rpcbind.service restart

Jun 23 11:00:35.384161 vm-rhel8 systemd[1]: rpcbind.socket: Succeeded.
Jun 23 11:00:35.384504 vm-rhel8 systemd[1]: Closed RPCbind Server Activation Socket.
Jun 23 11:00:35.384525 vm-rhel8 systemd[1]: Stopping RPCbind Server Activation Socket.

--> This is rpcbind.socket restart, only the stop happens due to rpcbind.service hijacking the sockets

Jun 23 11:00:35.384595 vm-rhel8 systemd[1]: rpcbind.socket: Socket service rpcbind.service already active, refusing.
Jun 23 11:00:35.384618 vm-rhel8 systemd[1]: Failed to listen on RPCbind Server Activation Socket.
Jun 23 11:00:35.384656 vm-rhel8 systemd[1]: Dependency failed for RPC Bind.
Jun 23 11:00:35.384673 vm-rhel8 systemd[1]: rpcbind.service: Job rpcbind.service/start failed with result 'dependency>

# netstat -anlp | egrep -w "rpcbind|111"
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      1559/rpcbind        
tcp6       0      0 :::111                  :::*                    LISTEN      1559/rpcbind        
udp        0      0 0.0.0.0:111             0.0.0.0:*                           1559/rpcbind        
udp6       0      0 :::111                  :::*                                1559/rpcbind        
unix  2      [ ACC ]     STREAM     LISTENING     20232    1559/rpcbind         /run/rpcbind.sock

--> everything held by "rpcbind" instead of "systemd"
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

Interestingly, when stracing *systemd*, I'm not able to reproduce, which seems to indicate there is some race.

Version-Release number of selected component (if applicable):

Up to rpcbind-1.2.5-8.el8.x86_64 included

How reproducible:

Always

Steps to Reproduce:
1. Execute "systemctl try-restart rpcbind.service rpcbind.socket"

Actual results:

Job for rpcbind.socket failed.
See "systemctl status rpcbind.socket" and "journalctl -xe" for details.
A dependency job for rpcbind.service failed. See 'journalctl -xe' for details.

Expected results:

No error

Comment 1 RHEL Program Management 2023-09-21 11:47:30 UTC
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.

Comment 2 RHEL Program Management 2023-09-21 11:52:36 UTC
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

Due to differences in account names between systems, some fields were not replicated.  Be sure to add yourself to Jira issue's "Watchers" field to continue receiving updates and add others to the "Need Info From" field to continue requesting information.

To find the migrated issue, look in the "Links" section for a direct link to the new issue location. The issue key will have an icon of 2 footprints next to it, and begin with "RHEL-" followed by an integer.  You can also find this issue by visiting https://issues.redhat.com/issues/?jql= and searching the "Bugzilla Bug" field for this BZ's number, e.g. a search like:

"Bugzilla Bug" = 1234567

In the event you have trouble locating or viewing this issue, you can file an issue by sending mail to rh-issues. You can also visit https://access.redhat.com/articles/7032570 for general account information.