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https://issues.apache.org/jira/browse/LUCENE-3463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118573#comment-13118573
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Hoss Man commented on LUCENE-3463:
----------------------------------
bq. There are still some issues with tests that create the index in BeforeClass
but cannot read it later when @UseNoMemoryExpensiveCodec is selected for one
test method. Also similar issues may occur if the test explicitely selects such
a codec (Mike found some failing tests, still investigating).
...i haven't really been following this issue (or looked at the patches) but
wouldn't the most straight forward way to deal with this sort of thing be to
support specifying the annotation that indicate certain codecs are
required/prohibited on either the individual test methods or on the entire test
class -- so if a class wants to build the index in an @BeforeClass method, it
has to put the @UseNoMemoryExpensiveCodec or @MustUseCodec("PulsingCodec") on
the entire class and not the individual methods?
(where by "most straight forward" i mean for the test writer, not neccessarily
for how it's implemented in LTC)
In the case where classes are building the indexes in @Before or @Test methods,
the codec anotations could be placed on both the class and the test methods -
with the method annotations overwritting the class annotations...
{code}
/** Most of these tests create indexes too bug for in memory codecs */
@UseNoMemoryExpensiveCodec public class CoolFeatureTest {
@Before buildIndex() { ... }
@Test testFooIntensively() { ... }
@Test testBarIntensively { ... }
/* this test should work with any codec */
@Test @UseRandomCodec testSimpleStuff() { ... }
/* this tests specific to pulsing codec, so it must also use that one */
@Test @UseCodec("PulsingCodec") testPulsingCodec() { ... }
}
{code}
> Jenkins trunk tests (nightly only) fail quite often with OOM in Automaton/FST
> tests
> -----------------------------------------------------------------------------------
>
> Key: LUCENE-3463
> URL: https://issues.apache.org/jira/browse/LUCENE-3463
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Uwe Schindler
> Fix For: 4.0
>
> Attachments: LUCENE-3463.patch, LUCENE-3463.patch, LUCENE-3463.patch,
> LUCENE-3463.patch
>
>
> The nightly Job Lucene-trunk quite often fails with OOM (in several methods,
> not always in the same test):
> Example from last night (this time a huge Automaton):
> {noformat}
> [junit] java.lang.OutOfMemoryError: Java heap space
> [junit] Dumping heap to
> /home/hudson/hudson-slave/workspace/Lucene-trunk/heapdumps/java_pid38855.hprof
> ...
> [junit] Heap dump file created [86965954 bytes in 1.186 secs]
> [junit] Testsuite: org.apache.lucene.index.TestTermsEnum
> [junit] Testcase: testIntersectRandom(org.apache.lucene.index.TestTermsEnum):
> Caused an ERROR
> [junit] Java heap space
> [junit] java.lang.OutOfMemoryError: Java heap space
> [junit] at
> org.apache.lucene.util.automaton.RunAutomaton.<init>(RunAutomaton.java:128)
> [junit] at
> org.apache.lucene.util.automaton.ByteRunAutomaton.<init>(ByteRunAutomaton.java:28)
> [junit] at
> org.apache.lucene.util.automaton.CompiledAutomaton.<init>(CompiledAutomaton.java:134)
> [junit] at
> org.apache.lucene.index.TestTermsEnum.testIntersectRandom(TestTermsEnum.java:266)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:148)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:50)
> [junit]
> [junit]
> [junit] Tests run: 6, Failures: 0, Errors: 1, Time elapsed: 11.699 sec
> {noformat}
> Other traces:
> {noformat}
> [junit] Testsuite: org.apache.lucene.util.fst.TestFSTs
> [junit] Testcase: testRealTerms(org.apache.lucene.util.fst.TestFSTs): Caused
> an ERROR
> [junit] Java heap space
> [junit] java.lang.OutOfMemoryError: Java heap space
> [junit] at org.apache.lucene.util.ArrayUtil.grow(ArrayUtil.java:338)
> [junit] at
> org.apache.lucene.util.fst.FST$BytesWriter.writeBytes(FST.java:927)
> [junit] at
> org.apache.lucene.util.fst.ByteSequenceOutputs.write(ByteSequenceOutputs.java:113)
> [junit] at
> org.apache.lucene.util.fst.ByteSequenceOutputs.write(ByteSequenceOutputs.java:32)
> [junit] at org.apache.lucene.util.fst.FST.addNode(FST.java:451)
> [junit] at org.apache.lucene.util.fst.NodeHash.add(NodeHash.java:122)
> [junit] at
> org.apache.lucene.util.fst.Builder.compileNode(Builder.java:180)
> [junit] at org.apache.lucene.util.fst.Builder.finish(Builder.java:495)
> [junit] at
> org.apache.lucene.index.codecs.memory.MemoryCodec$TermsWriter.finish(MemoryCodec.java:232)
> [junit] at
> org.apache.lucene.index.FreqProxTermsWriterPerField.flush(FreqProxTermsWriterPerField.java:414)
> [junit] at
> org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:92)
> [junit] at org.apache.lucene.index.TermsHash.flush(TermsHash.java:117)
> [junit] at
> org.apache.lucene.index.DocInverter.flush(DocInverter.java:80)
> [junit] at
> org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:78)
> [junit] at
> org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:472)
> [junit] at
> org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:420)
> [junit] at
> org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:568)
> [junit] at
> org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:366)
> [junit] at
> org.apache.lucene.index.IndexReader.open(IndexReader.java:317)
> [junit] at
> org.apache.lucene.util.fst.TestFSTs.testRealTerms(TestFSTs.java:1034)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
> {noformat}
> or:
> {noformat}
> [junit] Testsuite: org.apache.lucene.util.automaton.TestCompiledAutomaton
> [junit] Testcase:
> testRandom(org.apache.lucene.util.automaton.TestCompiledAutomaton): Caused an
> ERROR
> [junit] Java heap space
> [junit] java.lang.OutOfMemoryError: Java heap space
> [junit] at
> org.apache.lucene.util.automaton.RunAutomaton.<init>(RunAutomaton.java:128)
> [junit] at
> org.apache.lucene.util.automaton.ByteRunAutomaton.<init>(ByteRunAutomaton.java:28)
> [junit] at
> org.apache.lucene.util.automaton.CompiledAutomaton.<init>(CompiledAutomaton.java:134)
> [junit] at
> org.apache.lucene.util.automaton.TestCompiledAutomaton.build(TestCompiledAutomaton.java:39)
> [junit] at
> org.apache.lucene.util.automaton.TestCompiledAutomaton.testTerms(TestCompiledAutomaton.java:55)
> [junit] at
> org.apache.lucene.util.automaton.TestCompiledAutomaton.testRandom(TestCompiledAutomaton.java:101)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:148)
> [junit] at
> org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:50)
> {noformat}
> Almost every nightly test fails, history:
> [https://builds.apache.org/job/Lucene-trunk]
> We should maybe raise the max heap space or reduce doc counts/...
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