[LUCENE-5377] IW.addIndexes(Dir[]) causes silent index corruption

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.6
• Fix Version/s: 4.6.1, 4.7, 6.0
• Component/s: core/index

Environment

windows/linux

• Lucene Fields: New
• Assignee: Robert Muir
• Reporter: Littlestar
• Created: 24/Dec/13 04:06
• Updated: 28/Aug/22 13:58
• Resolved: 22/Jan/14 19:04

Description

my old facet index create by Lucene version=4.2
use indexChecker ok.

now I upgrade to Lucene 4.6 and put some new records to index.
then reopen index, some files in indexdir missing....
no .si files.

I debug into it, new version format of segments.gen(segments_N) record bad segments info.

Issue Links

• is related to: LUCENE-5940 change index backwards compatibility policy.