unable to remove index: Lock obtain timed out

cablepuff · **Joined:** Tue Apr 01, 2008 5:39 pm **Posts:** 61

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Hibernate version:
3.3.0 GA core
3.1.0 Beta1

Mapping documents:

Code between sessionFactory.openSession() and session.close():

Code:

@Transactional(propagation=Propagation.REQUIRES_NEW,
                   isolation=Isolation.SERIALIZABLE,
                   readOnly=true)
public void batchProcessPostingIndex
{
Session session = this.getHibernateTemplate().getSessionFactory().getCurrentSession();
        FullTextSession fullTextSession = Search.getFullTextSession(session);
        fullTextSession.setFlushMode(FlushMode.MANUAL);
        fullTextSession.setCacheMode(CacheMode.IGNORE);
        //Scrollable results will avoid loading too many objects in memory
        ScrollableResults results = fullTextSession.createCriteria(Post.class )
            .setFetchSize(BATCH_SIZE)
            .scroll( ScrollMode.FORWARD_ONLY );
        int index = 0;
        while( results.next() ) {
            index++;
            fullTextSession.index( results.get(0) ); //index each element
            if (index % BATCH_SIZE == 0) {
                fullTextSession.flushToIndexes(); //apply changes to indexes
                fullTextSession.clear(); //clear since the queue is processed
            }
        }
}

Full stack trace of any exception that occurs:

Code:

Exception in thread "main" org.hibernate.search.SearchException: Unable to remov
e from Lucene index: class ups.message.board.domain.Post#192114
        at org.hibernate.search.backend.impl.lucene.LuceneWorker.remove(LuceneWo
rker.java:108)
        at org.hibernate.search.backend.impl.lucene.LuceneWorker.performWork(Luc
eneWorker.java:79)
        at org.hibernate.search.backend.impl.lucene.LuceneWorker.performWork(Luc
eneWorker.java:46)
        at org.hibernate.search.backend.impl.lucene.LuceneBackendQueueProcessor.
run(LuceneBackendQueueProcessor.java:98)
        at org.hibernate.search.backend.impl.BatchedQueueingProcessor.performWor
ks(BatchedQueueingProcessor.java:151)
        at org.hibernate.search.backend.impl.PostTransactionWorkQueueSynchroniza
tion.flushWorks(PostTransactionWorkQueueSynchronization.java:63)
        at org.hibernate.search.backend.impl.TransactionalWorker.flushWorks(Tran
sactionalWorker.java:63)
        at org.hibernate.search.impl.FullTextSessionImpl.flushToIndexes(FullText
SessionImpl.java:100)
        at ups.message.board.dao.PostingDaoHibernateImpl.batchPro
cessPostingIndex(PostingDaoHibernateImpl.java:110)
        at ups.message.board.service.PostingServiceImpl.batchProc
essPostingIndex(PostingServiceImpl.java:70)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflecti
on(AopUtils.java:310)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJo
inpoint(ReflectiveMethodInvocation.java:182)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:149)
        at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:106)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:171)
        at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:106)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:171)
        at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:106)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami
cAopProxy.java:204)
        at $Proxy14.batchProcessPostingIndex(Unknown Source)
        at ups.message.board.main.BatchPostingIndex.main(BatchPostingIndex.java
:27)
Caused by: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed
out: SimpleFSLock@C:\searchIndex\Post\write.lock
        at org.apache.lucene.store.Lock.obtain(Lock.java:85)
        at org.apache.lucene.index.DirectoryIndexReader.acquireWriteLock(Directo
ryIndexReader.java:250)
        at org.apache.lucene.index.IndexReader.deleteDocument(IndexReader.java:7
25)
        at org.hibernate.search.backend.impl.lucene.LuceneWorker.remove(LuceneWo
rker.java:103)
        ... 25 more

Name and version of the database you are using:

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:

Problems with Session and transaction handling?

Read this: http://hibernate.org/42.html

sanne.grinovero · **Posted:** Mon Aug 25, 2008 12:11 pm

It's possible you terminated a previous run of indexing, leaving your index in locked state.
Close you applications using the index, and verify there is no lock file in the index directory, if it exists delete it.
This shouldn't happen in normal operation (when quitting without killing the app).