I use Word2vec in deeplearning4j to make word embedding matrix. for this works, my program read absolute roots of text files by Vector<String> and initialize Iterator and Word2vec variable. However, I met warning message when the program call fit method in deeplearning4j.
Here is a warning message.
14:06:56.556 [main] WARN o.d.t.i.LuceneInvertedIndex - Couldn't
create index org.apache.lucene.store.LockObtainFailedException: Lock
obtain timed out:
SleepingLockWrapper(MMapDirectory@/Users/jimin/Documents/Workspace/MakeVector/word2vec-index
lockFactory=org.apache.lucene.store.NativeFSLockFactory@e24ddd0):
org.apache.lucene.store.LockObtainFailedException: Lock held by this
virtual machine:
/Users/jhmin/Documents/Workspace/MakeVector/word2vec-index/write.lock
at
org.apache.lucene.store.SleepingLockWrapper.obtainLock(SleepingLockWrapper.java:102)
~[lucene-core-5.3.1.jar:5.3.1 1703449 - noble - 2015-09-17 01:38:09]
at org.apache.lucene.index.IndexWriter.(IndexWriter.java:775)
~[lucene-core-5.3.1.jar:5.3.1 1703449 - noble - 2015-09-17 01:38:09]
at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex.tryCreateWriter(LuceneInvertedIndex.java:609)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex.getWriterWithRetry(LuceneInvertedIndex.java:574)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex.getWriter(LuceneInvertedIndex.java:623)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex.initReader(LuceneInvertedIndex.java:279)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex.(LuceneInvertedIndex.java:102)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex.(LuceneInvertedIndex.java:106)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.text.invertedindex.LuceneInvertedIndex$Builder.build(LuceneInvertedIndex.java:893)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.models.word2vec.Word2Vec.buildVocab(Word2Vec.java:276)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
org.deeplearning4j.models.word2vec.Word2Vec.fit(Word2Vec.java:104)
[deeplearning4j-nlp-0.4-rc3.6.jar:na] at
jhmin.mining.test.word2vec.MakeVector.run(MakeVector.java:120)
[classes/:na] at jhmin.mining.test.word2vec.App.main(App.java:9)
[classes/:na] Caused by:
org.apache.lucene.store.LockObtainFailedException: Lock held by this
virtual machine:
/Users/jhmin/Documents/Workspace/MakeVector/word2vec-index/write.lock
at
org.apache.lucene.store.NativeFSLockFactory.obtainFSLock(NativeFSLockFactory.java:127)
~[lucene-core-5.3.1.jar:5.3.1 1703449 - noble - 2015-09-17 01:38:09]
at
org.apache.lucene.store.FSLockFactory.obtainLock(FSLockFactory.java:41)
~[lucene-core-5.3.1.jar:5.3.1 1703449 - noble - 2015-09-17 01:38:09]
at
org.apache.lucene.store.BaseDirectory.obtainLock(BaseDirectory.java:45)
~[lucene-core-5.3.1.jar:5.3.1 1703449 - noble - 2015-09-17 01:38:09]
at
org.apache.lucene.store.SleepingLockWrapper.obtainLock(SleepingLockWrapper.java:84)
~[lucene-core-5.3.1.jar:5.3.1 1703449 - noble - 2015-09-17 01:38:09]
... 12 common frames omitted
How can't I fix this warning message?