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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2014/06/18 16:53:26 UTC

[jira] [Created] (LUCENE-5775) JaspellTernarySearchTrie.ramBytesUsed hits StackOverflowError

Michael McCandless created LUCENE-5775:
------------------------------------------

             Summary: JaspellTernarySearchTrie.ramBytesUsed hits StackOverflowError
                 Key: LUCENE-5775
                 URL: https://issues.apache.org/jira/browse/LUCENE-5775
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Michael McCandless


I hit this when trying to run LookupBenchmarkTest for LUCENE-5752:

{noformat}
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=LookupBenchmarkTest -Dtests.method=testStorageNeeds -Dtests.seed=EA0FADB2EE37D385 -Dtests.locale=es_ES -Dtests.timezone=Etc/Greenwich -Dtests.file.encoding=UTF-8
   [junit4] ERROR   1.89s | LookupBenchmarkTest.testStorageNeeds <<<
   [junit4]    > Throwable #1: java.lang.StackOverflowError
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([EA0FADB2EE37D385:DF8106BCB29C472F]:0)
   [junit4]    > 	at java.lang.Class.getMethod0(Class.java:2774)
   [junit4]    > 	at java.lang.Class.isCheckMemberAccessOverridden(Class.java:2214)
   [junit4]    > 	at java.lang.Class.checkMemberAccess(Class.java:2233)
   [junit4]    > 	at java.lang.Class.getDeclaredFields(Class.java:1805)
   [junit4]    > 	at org.apache.lucene.util.RamUsageEstimator.shallowSizeOfInstance(RamUsageEstimator.java:351)
   [junit4]    > 	at org.apache.lucene.util.RamUsageEstimator.shallowSizeOf(RamUsageEstimator.java:329)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:100)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
   [junit4]    > 	at org.apache.lucene.search.suggest.jaspell.JaspellTernarySearchTrie$TSTNode.ramBytesUsed(JaspellTernarySearchTrie.java:103)
{noformat}

I think we should just remove/deprecate this suggester?  The FST based suggesters are far more RAM efficient...



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