FileNotFoundException異常在Hibernate中搜索和Lucene

Question

我們使用Hibernate Search的在我們的web應用程序和下面是我們使用的版本：

hibernate-search-3.4.1.Final 
hibernate3.6.10.jar 
lucene-core-3.4.0.jar 

以前我們有lucene-core-3.1但升級了幾個月前，因爲另外一個問題。現在我經常遇到錯誤。我搜查了網絡，發現this和this和其他幾個人，但他們似乎不是我的一樣。這裏是堆棧跟蹤：

2013-09-29 15:10:43,624 ERROR LogErrorHandler:82 - Exception occurred java.io.FileNotFoundException: \\sql-cluster\data\indexes\mycomp.domain.Item\_1ut.cfs (The system cannot find the file specified) 
Primary Failure: 
    Entity mycomp.domain.Item Id 4761556 Work Type org.hibernate.search.backend.AddLuceneWork 

java.io.FileNotFoundException: \\sql-cluster\data\indexes\mycomp.domain.Item\_1ut.cfs (The system cannot find the file specified) 
    at java.io.RandomAccessFile.open(Native Method) 
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:233) 
    at org.apache.lucene.store.MMapDirectory.openInput(MMapDirectory.java:214) 
    at org.apache.lucene.index.CompoundFileReader.<init>(CompoundFileReader.java:64) 
    at org.apache.lucene.index.CompoundFileReader.<init>(CompoundFileReader.java:52) 
    at org.apache.lucene.index.IndexWriter.getFieldInfos(IndexWriter.java:1222) 
    at org.apache.lucene.index.IndexWriter.getCurrentFieldInfos(IndexWriter.java:1242) 
    at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:1175) 
    at org.hibernate.search.backend.Workspace.createNewIndexWriter(Workspace.java:202) 
    at org.hibernate.search.backend.Workspace.getIndexWriter(Workspace.java:180) 
    at org.hibernate.search.backend.impl.lucene.PerDPQueueProcessor.run(PerDPQueueProcessor.java:103) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:166) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:722) 
2013-09-29 15:10:43,624 ERROR PerDPQueueProcessor:118 - Unexpected error in Lucene Backend: 
java.lang.NullPointerException 
    at org.hibernate.search.backend.impl.lucene.works.AddWorkDelegate.performWork(AddWorkDelegate.java:76) 
    at org.hibernate.search.backend.impl.lucene.PerDPQueueProcessor.run(PerDPQueueProcessor.java:106) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:166) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:722) 
2013-09-29 15:10:43,624 ERROR LogErrorHandler:82 - Exception occurred java.lang.NullPointerException 
Primary Failure: 
    Entity mycomp.domain.Item Id 4761556 Work Type org.hibernate.search.backend.AddLuceneWork 

java.lang.NullPointerException 
    at org.hibernate.search.backend.impl.lucene.works.AddWorkDelegate.performWork(AddWorkDelegate.java:76) 
    at org.hibernate.search.backend.impl.lucene.PerDPQueueProcessor.run(PerDPQueueProcessor.java:106) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:166) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:722) 

任何幫助，非常感謝。

Answer 1

您是否檢查過指定實體的索引文件夾？你也可以使用luke工具來檢查你的實體索引。詳情https://lucene.apache.org/core/3_5_0/contributions.html

Answer 2

它似乎索引文件不存在的位置。請驗證下面的位置。

\ SQL集羣\ DATA \ \指標mycomp.domain.Item_1ut.cfs

在加載它查找索引位置的上下文。

Most likely your index file is corrupted. 

或

Your new hibernate lucene library pointing the wrong index path. 

要解決這個問題，您需要重新創建索引類似下面。

FullTextSession session = Search.getFullTextSession(getSessionFactory().openSession()); 
     session.setFlushMode(FlushMode.MANUAL); 
     session.setCacheMode(CacheMode.IGNORE); 

Transaction transaction = session.beginTransaction(); 
ScrollableResults items = session.createQuery("from Item i ") 
       .scroll(ScrollMode.FORWARD_ONLY); 

while(items.next()) { 

     Object nextToIndex = items.get(0); 
     session.index(nextToIndex); 
     session.flushToIndexes(); 
     session.clear(); 
} 
transaction.commit(); 

Answer 3

Hibernate Search 3.4.x需要Lucene版本3.1.x.另見https://repository.jboss.org/nexus/content/repositories/public/org/hibernate/hibernate-search-parent/3.4.1.Final/hibernate-search-parent-3.4.1.Final.pom。

您需要再次降級Lucene，或者，如果您想使用Lucene 3.4.x，則還需要升級Hibernate Search。