[LUCENE-2280] IndexWriter.optimize() throws NullPointerException

• Type: Bug
• Status: Reopened
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3.2
• Component/s: core/index
• Labels: IndexWriter NPE optimize

Environment

Win 2003, lucene version 2.3.2, IBM JRE 1.6

• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Ritesh Nigam
• Created: 23/Feb/10 07:05
• Updated: 28/Aug/22 12:20

Description

I am using lucene 2.3.2 search APIs for my application, i am indexing 45GB database which creates approax 200MB index file, after finishing the indexing and while running optimize() i can see NullPointerExcception thrown in my log and index file is getting corrupted, log says

------------------------------------------------------------------------
Caused by:
java.lang.NullPointerException
at org.apache.lucene.store.BufferedIndexOutput.writeBytes(BufferedIndexOutput.java:49)
at org.apache.lucene.store.IndexOutput.writeBytes(IndexOutput.java:40)
at org.apache.lucene.index.SegmentMerger.mergeNorms(SegmentMerger.java:566)
at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:135)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3273)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:2968)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:240)
------------------------------------------------------------------------
and this is happening quite frequently, although I am not able to reproduce it on demand, I saw an issue logged which is some what related to mine issue (http://mail-archives.apache.org/mod_mbox/lucene-solr-user/200809.mbox/[e-mail]%3E) but the only difference here is I am not using Store.Compress for my fields, i am using Store.NO instead. please note that I am using IBM JRE for my application.

Is this an issue with lucene?, if yes it is fixed in which version?