[LUCENE-846] IOExeception can cause loss of data due to premature segment deletion

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2
• Component/s: core/index
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Steven Parkes
• Created: 23/Mar/07 19:13
• Updated: 28/Aug/22 11:36
• Resolved: 25/Mar/07 13:19

Description

If you hit an IOException, e.g., disk full, while making a cfs from its constituent parts, you may not be able to rollback to the before-merge process. This happens via addIndexes.

I don't have a nice easy test for this; generating IOEs ain't so easy. But it does happen in the patch for the factored merge policy with the existing tests because the pseudo-randomly generated IOEs fall in a different place.