Issue
Managing structures with a significant amount of associated content in Liferay can be resource-intensive. This article explores a potential workaround to mitigate the performance impact and provides guidance on evaluating its suitability for your project.
Environment
- Quarterly Releases
Details
When editing a structure in Liferay, the system processes and updates all the associated DDMFields for the content items linked to that structure. This behavior is handled by the DDMStructureModelListener component. While this ensures consistency across all content items, it can lead to significant performance degradation in projects with a large volume of content or complex structures.
Workaround
-
To reduce the resource impact, you can temporarily disable the DDMStructureModelListener using the following command in the Gogo Shell:
-
scr:disable com.liferay.journal.internal.model.listener.DDMStructureModelListener
-
-
Impact of Disabling the Listener
- No Structural Impact: If your changes do not affect the existing structure of the content (e.g., modifying literals, adding new fields, or adding options to an option), disabling the listener minimizes the performance overhead while ensuring new changes are still applied.
- Structural Impact: If the changes involve altering the structure itself (e.g., changing field order, modifying existing fields, or deleting fields), disabling the listener is not recommended, as this could lead to inconsistencies in your content.
-
Testing the Workaround:
-
Evaluate Changes in a Non-Production Environment: Before applying this workaround, test it in a pre-production environment to ensure it aligns with your project’s requirements and existing web content are not being impacted checking them and trying to edit any.
-
Re-enable the Listener After Testing: Once you’ve made the necessary edits and ensured their validity, re-enable the listener with the following command to restore the default behavior:
scr:enable com.liferay.journal.internal.model.listener.DDMStructureModelListener
-
Important
If you decide to explore this workaround, ensure that the changes you make have minimal structural impact. For changes with significant structural implications, disabling the listener is not advisable.