This might not be your problem, but all of my silent zuul stoppages have been 
YAML syntax errors.  Try running this; if it’s prints something dictionary 
like, the syntax is fine.  If it throws an exception, the yaml file is wrong.

echo "require 'yaml'; z=YAML.load(File.open('/etc/zuul/layout.yaml').read); 
print z" | ruby


From: <Phan>, Van <[email protected]<mailto:[email protected]>>
Date: Wednesday, October 1, 2014 at 5:36 PM
To: 
"[email protected]<mailto:[email protected]>"
 
<[email protected]<mailto:[email protected]>>
Subject: [OpenStack-Infra] desperate to get zuul works again, see layout 
setting at the end of email

Hi,
Could you please give me a hint how to fix the problem?

We had review/build/approve pipeline working well.

Suddenly, all review requests got zuul reported back as LOST.  Restarted zuul/ 
Jenkins a few times and it still has GEARMAN reported ERROR…

2014-10-01 22:53:37,631 ERROR zuul.Gearman: Job <gear.Job 0x7f5100010a90 
handle: None name: build:openstack-review-job unique: 701cc4fa52c54
462935bcaa276880b99> is not registered with Gearman
2014-10-01 22:53:37,632 INFO zuul.Gearman: Build <gear.Job 0x7f5100010a90 
handle: None name: build:openstack-review-job unique: 701cc4fa52c5
4462935bcaa276880b99> complete, result LOST
ERROR zuul.Gearman: Job <gear.Job 0x21b8f50 handle: None name: 
build:openstack-build-job unique: 51ea00c330c84cf9b40
ea38ad6c3f9e6> is not registered with Gearman
2014-10-01 22:53:37,633 INFO zuul.Gearman: Build <gear.Job 0x21b8f50 handle: 
None name: build:openstack-build-job unique: 51ea00c330c84cf9b4
0ea38ad6c3f9e6> complete, result LOST

Here are the errors in zuul log:

2014-10-01 22:53:16,240 INFO zuul.Gerrit: Updating information for 2366,1
2014-10-01 22:53:33,063 INFO zuul.Gerrit: Updating information for 2511,1
2014-10-01 22:53:34,934 INFO zuul.Scheduler: Adding C3/keystone-plugins, 
<Change 0x1e742d0 2511,1> to <Pipeline review>
2014-10-01 22:53:34,935 INFO zuul.IndependentPipelineManager: Troubleshooting 
addChange
2014-10-01 22:53:34,935 INFO zuul.IndependentPipelineManager: Reporting start, 
action [<ActionReporter <zuul.reporter.gerrit.Reporter object
at 0x21bbe90>, {'code-review': 0}>] change <Change 0x1e742d0 2511,1>
2014-10-01 22:53:36,028 INFO zuul.Gerrit: Updating information for 2511,1
2014-10-01 22:53:36,044 INFO zuul.IndependentPipelineManager: Change <Change 
0x1e742d0 2511,1> depends on changes []
2014-10-01 22:53:37,628 INFO zuul.IndependentPipelineManager: Change <Change 
0x1e742d0 2511,1> depends on changes []
2014-10-01 22:53:37,629 INFO zuul.Gearman: Launch job openstack-review-job for 
change <Change 0x1e742d0 2511,1> with dependent changes []
2014-10-01 22:53:37,631 ERROR zuul.Gearman: Job <gear.Job 0x7f5100010a90 
handle: None name: build:openstack-review-job unique: 701cc4fa52c54
462935bcaa276880b99> is not registered with Gearman
2014-10-01 22:53:37,632 INFO zuul.Gearman: Build <gear.Job 0x7f5100010a90 
handle: None name: build:openstack-review-job unique: 701cc4fa52c5
4462935bcaa276880b99> complete, result LOST
2014-10-01 22:53:37,632 INFO zuul.Gearman: Launch job openstack-build-job for 
change <Change 0x1e742d0 2511,1> with dependent changes []
2014-10-01 22:53:37,633 ERROR zuul.Gearman: Job <gear.Job 0x21b8f50 handle: 
None name: build:openstack-build-job unique: 51ea00c330c84cf9b40
ea38ad6c3f9e6> is not registered with Gearman
2014-10-01 22:53:37,633 INFO zuul.Gearman: Build <gear.Job 0x21b8f50 handle: 
None name: build:openstack-build-job unique: 51ea00c330c84cf9b4
0ea38ad6c3f9e6> complete, result LOST
2014-10-01 22:53:37,634 INFO zuul.IndependentPipelineManager: Reporting change 
<Change 0x1e742d0 2511,1>, actions: [<ActionReporter <zuul.re
porter.smtp.Reporter object at 0x21bbed0>, {'to': 
'[email protected]<mailto:'[email protected]>', 'from': 
'[email protected]<mailto:'[email protected]>'}>, <ActionReporter 
<zuul.reporter.gerrit
.Reporter object at 0x21bbe90>, {'code-review': -1}>]

Sample of project settings in layout.yaml:

project-templates:
  - name: openstack-template
    review:
     - 'openstack-review-job'
     - 'openstack-build-job'
    approval:
     - 'openstack-approval-job'
projects:
  - name: C3/nova-scheduler
    template:
     - name: openstack-template
  - name: C3/keystone-plugins
    template:
     - name: openstack-template
  - name: C3/nova
    template:
     - name: openstack-template

Thanks very much.
Van
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