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Bug
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Resolution: Unresolved
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Low
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None
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6.15.3, 7.4.8, 7.9.3
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None
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20
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Severity 3 - Minor
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3
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Issue Summary
Slow page loading times can result when opening the "Recently Worked on" page.
Environment
- 6.15.3
- MySQL 5.7
Steps to Reproduce
This problem occurs while opening the "Recently Worked on" page.
Expected Results
Page loads within a reasonable amount of time
Actual Results
The page loading is slow taking up to 14 seconds
Symptoms
Aside from the slowness observed in the UI, this problem has the following symptoms:
- If a HAR file is captured while loading the page, the following URL call will take quite a bit of time to complete:
<confluence-base-url>/rest/api/content/search?expand=container,metadata.currentuser.lastcontributed,metadata.currentuser.lastmodified
- If SQL debugging is enabled, the following method call will take the longest to complete while processing the above URL:
ContentEntityManager.getVersionsLastEditedByUser()
- If thread dumps are taken while loading the page, most threads will reference calls to com.atlassian.confluence.core.DefaultContentEntityManager.getVersionsLastEditedByUser.
- While the actual SQL queries execute quickly, most of the processing is taken up within the Hibernate layer.
Analysis
The following Java method was found to be inefficient as it is supposed to retrieve all pages (including drafts) that a specified user edited in the past, but only the latest versions of these documents:
com.atlassian.confluence.internal.persistence.hibernate.AbstractContentEntityObjectHibernateDao#getVersionsLastEditedByUserNew
However, it retrieves all versions of these pages and ends up discarding the majority of the returned records which is most likely causing the delay in rendering the results.
Workaround
A possible workaround would be to disable the recently-viewed-plugin altogether to prevent these queries from being executed. If this is acceptable, then it's the only way to reduce the load time until proper fix is implemented. Please also see the work around listed in CONFSERVER-57457 as this appears to be related.
Please be aware that disabling the recently-viewed-plugin will cause also the plugins dependent on it to be disabled. This may not be acceptable if these plugins are required. Below an example of the effect of disabling the plugin on v8.5:
To disable plugins '[com.atlassian.confluence.plugins.recently-viewed-plugin]', we need to first disable all dependent enabled plugins:
[com.atlassian.confluence.plugins.confluence-nav-links(MANDATORY),
com.atlassian.confluence.plugins.confluence-onboarding(MANDATORY),
com.atlassian.mywork.mywork-confluence-provider-plugin(MANDATORY),
com.atlassian.business.insights.core-plugin(OPTIONAL),
com.atlassian.confluence.plugins.confluence-graphql-providers(MANDATORY),
com.atlassian.confluence.plugins.confluence-dashboard(MANDATORY),
com.atlassian.confluence.plugins.confluence-business-blueprints(MANDATORY),
com.atlassian.confluence.plugins.atlassian-playbook-blueprints(MANDATORY),
com.atlassian.plugins.confluence-project-creation(MANDATORY),
com.atlassian.confluence.plugins.confluence-software-project(MANDATORY),
com.atlassian.confluence.plugins.confluence-questions(OPTIONAL),
com.atlassian.confluence.plugins.confluence-retention-rules(OPTIONAL), com.atlassian.confluence.plugins.confluence-software-blueprints(MANDATORY),
com.atlassian.confluence.plugins.confluence-space-blueprints(MANDATORY), com.atlassian.confluence.plugins.confluence-knowledge-base(MANDATORY),
com.atlassian.confluence.plugins.confluence-jira-content(MANDATORY), com.atlassian.confluence.plugins.confluence-auditing-coverage(OPTIONAL),
com.atlassian.confluence.plugins.confluence-roadmap-plugin(MANDATORY),
com.atlassian.confluence.plugins.confluence-webhooks(OPTIONAL),
confluence.extra.jira(MANDATORY),
com.atlassian.business.insights.confluence-plugin(OPTIONAL),
com.atlassian.confluence.plugins.confluence-mobile-plugin(MANDATORY),
com.addonengine.analytics(OPTIONAL),
com.atlassian.confluence.plugins.confluence-inline-tasks(MANDATORY),
com.atlassian.confluence.plugin.copyspace(MANDATORY),
com.atlassian.confluence.plugins.confluence-create-content-plugin(MANDATORY),
com.atlassian.confluence.plugins.confluence-space-ia(MANDATORY)]
- is related to
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- Closed
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- Long Term Backlog
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