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Bug 1687771 - restarting dynflowd with a task in planning phase can leave the task "planning" forever [NEEDINFO]
Summary: restarting dynflowd with a task in planning phase can leave the task "plannin...
Status: NEW
Alias: None
Product: Red Hat Satellite 6
Classification: Red Hat
Component: Tasks Plugin
Version: 6.4.2
Hardware: x86_64
OS: Linux
high vote
Target Milestone: Unspecified
Assignee: satellite6-bugs
QA Contact: Jan Hutař
Depends On:
TreeView+ depends on / blocked
Reported: 2019-03-12 10:50 UTC by Pavel Moravec
Modified: 2019-04-03 17:38 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Last Closed:
Target Upstream Version:
baitken: needinfo? (satellite6-bugs)

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Description Pavel Moravec 2019-03-12 10:50:20 UTC
Description of problem:
There are scenarios (based on a race condition or maybe call flow used for triggering the task?) where a task is planning for a while, and if dynflowd is restarted that time, the task sits "planning" forever.

Particular example (very visible without fix for bz1673447): see reproducer steps.

It is assumed fixes this.

Version-Release number of selected component (if applicable):
6.4.2 (or anything older)

How reproducible:
very likely (scale the test more to have better chance)

Steps to Reproduce:
1. Have more repos, more LEs and few Capsules

2. Create and publish many CVs with even identical content (one or two small repos, e.g.)

3. Promote many CVs to next LE, e.g. via:

for i in $(seq 1 20); do 
  hammer content-view version promote --content-view CV_${i} --organization-id 1 --from-lifecycle-environment-id 1 --to-lifecycle-environment-id 2 --async &
  sleep 1

4. monitor tasks status summary e.g. via:

sudo su - postgres -c "psql -d foreman -c 'select label,count(label),state,result from foreman_tasks_tasks where state <> '\''stopped'\'' group by label,state,result ORDER BY label;'"

5. Once there will be more Actions::Katello::CapsuleContent::Sync tasks in planning state, restart dynflowd:

service dynflowd restart

6. Monitor the tasks status summary until all Capsule Sync tasks terminate

Actual results:
6. is waiting for Godot

Expected results:
6. all Sync tasks successfully complete after a reasonable time

Additional info:

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