[LUCENE-555] Index Corruption

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Incomplete
• Affects Version/s: 1.9
• Component/s: core/index

Environment

Linux FC4, Java 1.4.9

• Assignee: Unassigned
• Reporter: dan
• Created: 24/Apr/06 13:49
• Updated: 28/Aug/22 11:27
• Resolved: 09/Jul/06 21:37

Description

Index Corruption

>>>>>>>>> output

java.io.FileNotFoundException: ../_aki.fnm (No such file or directory)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:204)
at org.apache.lucene.store.FSIndexInput$Descriptor.<init>(FSDirectory.java:425)
at org.apache.lucene.store.FSIndexInput.<init>(FSDirectory.java:434)
at org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:324)
at org.apache.lucene.index.FieldInfos.<init>(FieldInfos.java:56)
at org.apache.lucene.index.SegmentReader.initialize(SegmentReader.java:144)
at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:129)
at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:110)
at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:674)
at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:658)
at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:517)

>>>>>>>>> input

• I open an index, I read, I write, I optimize, and eventually the above happens. The index is unusable.
• This has happened to me somewhere between 20 and 30 times now - on indexes of different shapes and sizes.
• I don't know the reason. But, the following requirement applies regardless.

>>>>>>>>> requirement

• Like all modern database programs, there has to be a way to repair an index. Period.