Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
Red Hat Satellite engineering is moving the tracking of its product development work on Satellite 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 "Satellite project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs will be migrated starting at the end of May. 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 "Satellite project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/SAT-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.
Description of problem:
This bug is similar to https://bugzilla.redhat.com/show_bug.cgi?id=1335105 and https://bugzilla.redhat.com/show_bug.cgi?id=1320794.
If a user has many pending tasks and tries to start foreman-tasks, they may encounter the following stack trace:
/opt/theforeman/tfm/root/usr/share/gems/gems/sequel-4.20.0/lib/sequel/dataset/actions.rb:139:
[BUG] Stack consistency error (sp: 325, bp: 324)
ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux-gnu]
-- Control frame information -----------------------------------------------
c:0075 p:0011 s:0325 e:000323 BLOCK
/opt/theforeman/tfm/root/usr/share/gems/gems/sequel-4.20.0/lib/sequel/dataset/actions.rb:139
c:0074 p:0008 s:0321 e:000320 BLOCK
/opt/theforeman/tfm/root/usr/share/gems/gems/sequel-4.20.0/lib/sequel/adapters/postgres.rb:655
c:0073 p:0021 s:0318 e:000317 BLOCK
/opt/theforeman/tfm/root/usr/share/gems/gems/sequel-4.20.0/lib/sequel/adapters/postgres.rb:878
[FINISH]
additionally, they may encounter this error:
E, [2016-09-01T16:50:22.444036 #27074] ERROR --
/connector-database-core: No executor available (Dynflow::Error)
E, [2016-09-01T16:50:22.444318 #27074] ERROR -- /client-dispatcher: No
executor available (Dynflow::Error)
Version-Release number of selected component (if applicable): 6.2.1 (tfm-rubygem-dynflow-0.8.11-1.el6sat.noarch)
How reproducible: not every time, race condition
Steps to Reproduce:
1. get a large number of tasks into pending state (not sure on best way to do this)
2. stop foreman-tasks
3. start foreman-tasks
NOTE: this bz is for a race condition, you may need to test multiple times to repro the bz
Verified in Satellite 6.2.7 Snap 3.
I used 328 simultaneous paused repo syncs to test this bug. Verification steps are below. The tasks immediately started being handled when the foreman-tasks service was restarted. Due to the amount of repo syncs it took approximately 6 hours to process them all.
1. systemctl stop pulp_workers
2. start a large number of repository sync tasks.
- You can use this url for repo discovery http://pubmirror1.math.uh.edu/fedora-buffet/fedora/linux/
3. wait for all tasks to move into pending state
4. query number of pending tasks (see attached screenshot 1)
5. systemctl stop foreman-tasks
6. systemctl start pulp_workers && systemctl start foreman-tasks
7. watch the pending sync tasks drop off the query (see attachment 2[details])
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, 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-2017:0197