What are the gigantic *.CFS files all about in Eclipse workspace plugin folder?

Question

I started to notice my WD drive getting full and ran a size:gigantic file search on it. It has turned up several files here:

F:\SCOTT-SHARED-DESKTOP\My Documents\JPA_SPRING_STRUTS\.metadata\.plugins\org.maven.ide.eclipse\nexus\d9d714e11cb097b3ffcec91cccc65d3e_58.cfs

that exceed 189,992 KB (189 MB)!

Anyone know about these rascals?

Answer 1

Indeed, it's Nexus indexes. You can disable partially or totally Nexus indexes retrieval by right clicking on repositories in the Maven repositories view and checking/uncheking Disable Index Details/Enable Minimum Index/Full Index Enabled (options with M2Eclipse 0.12).

Hereunder a screenshot:

Answer 2

You might also consider unchecking the checkbox (under Window menu, Preferences, Maven):