Problem

ServiceDesk Application is installed but it is not enabled.

The following appears in the atlassian-jira.log, which shows ServiceDesk tries to load, but due to dependencies on different plugins it fails and disables.

2016-01-21 16:14:59,094 UpmAsynchronousTaskManager:thread-4 INFO <USERNAME> 969x32794x1 1doziyt 210.6.243.42 /rest/plugins/1.0/installed-marketplace [c.a.plugin.manager.DefaultPluginManager] Found dependent enabled plugins for plugin 'com.atlassian.servicedesk.project-ui': [].  Disabling...

Diagnosis

Looking at project administration, we can notice the project type is ServiceDesk, but the project does not have ServiceDesk items and behaviour per image below:

Cause

ServiceDesk Application requires several plugins to load prior to its loading process. Therefore if they fail, ServiceDesk will fail to load as well. 

pocketknife needs to be loaded first and after that client-resource, chaperone and email-processor. This can happen due to disabling plugins on earlier version of Jira and after upgrade to Jira 7, it can cause this issue.

Using below query we can figure out if mentioned plugins are disabled or not:

 select * from pluginstate;

If the result is as below:

                     pluginkey                   | pluginenabled
-------------------------------------------------+---------------
 com.atlassian.jira.jira-email-processor-plugin  | false
 com.atlassian.plugins.atlassian-chaperone       | false
 com.atlassian.plugins.atlassian-client-resource | false
 com.atlassian.pocketknife.api.commons.plugin    | false

Resolution

Run below queries to enable the plugins:

1. DELETE from pluginstate where pluginkey='com.atlassian.pocketknife.api.commons.plugin';

2. DELETE from pluginstate where pluginkey='com.atlassian.jira.jira-email-processor-plugin';

3. DELETE from pluginstate where pluginkey='com.atlassian.plugins.atlassian-chaperone';

4. DELETE from pluginstate where pluginkey='com.atlassian.plugins.atlassian-client-resource';

5. Restart Jira after any database changes.