[LUCENE-2376] java.lang.OutOfMemoryError:Java heap space

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 2.9.1
• Component/s: core/index

Environment

Windows

• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Shivender Devarakonda
• Created: 07/Apr/10 02:49
• Updated: 28/Aug/22 12:23
• Resolved: 18/Aug/15 07:48

Description

I see an OutOfMemory error in our product and it is happening when we have some data objects on which we built the index. I see the following OutOfmemory error, this is happening after we call Indexwriter.optimize():

4/06/10 02:03:42.160 PM PDT [ERROR] Lucene Merge Thread #12 In thread Lucene Merge Thread #12 and the message is org.apache.lucene.index.MergePolicy$MergeException: java.lang.OutOfMemoryError: Java heap space
4/06/10 02:03:42.207 PM PDT [VERBOSE] Lucene Merge Thread #12 [Manager] Uncaught Exception in thread Lucene Merge Thread #12
org.apache.lucene.index.MergePolicy$MergeException: java.lang.OutOfMemoryError: Java heap space
at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.resize(HashMap.java:462)
at java.util.HashMap.addEntry(HashMap.java:755)
at java.util.HashMap.put(HashMap.java:385)
at org.apache.lucene.index.FieldInfos.addInternal(FieldInfos.java:256)
at org.apache.lucene.index.FieldInfos.read(FieldInfos.java:366)
at org.apache.lucene.index.FieldInfos.<init>(FieldInfos.java:71)
at org.apache.lucene.index.SegmentReader$CoreReaders.<init>(SegmentReader.java:116)
at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:638)
at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:608)
at org.apache.lucene.index.IndexWriter$ReaderPool.get(IndexWriter.java:686)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4979)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4614)
at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
4/06/10 02:03:42.895 PM PDT [ERROR] this writer hit an OutOfMemoryError; cannot complete optimize