Low performance for saving an structure if it's related to a huge number of contents with several versions

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.1 CE GA2, 6.2.10 EE GA1, 6.2.X EE, 7.0.0 M3
• Fix Version/s: 6.2.4 CE GA5, 6.2.X EE, 7.0.0 M2
• Component/s: WCM > Publication
• Labels:
  • QA-TP
  • liferay-fixpack-portal-50-6210
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 20
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/21539

Steps to reproduce:

1. Create an structure.
2. Create a template linked to that structure.
3. Create for example 3000 web contents with 30 versions (9000 journal articles in total) per each one using that structure.
4. Go to manage structures, open the structure previously created and save.

It will take a long time to save the structure (even hours)

TECHNICAL NOTE
The reason for the bad performance is that any time we save a structure we reindex the articles related to it, so 9000 indexations in total. However there is a bug whereby when we are going to index a journal article version we take all its versions so, for the last example, we perform 30 * 30 = 900 indexations per web content so, 900 * 3000 = 2.700.000 indexations in total.

WORKAROUND
The following issue mitigates the problem:
https://issues.liferay.com/browse/LPS-48407