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https://issues.apache.org/jira/browse/IGNITE-4860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov reassigned IGNITE-4860:
---------------------------------------
Assignee: (was: Sergi Vladykin)
> Empty leafs in BPlusTree
> ------------------------
>
> Key: IGNITE-4860
> URL: https://issues.apache.org/jira/browse/IGNITE-4860
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Reporter: Igor Seliverstov
>
> {{org.apache.ignite.internal.processors.database.BPlusTreeSelfTest#testMassiveRemove2_true}}
> The test fails approximately once out of 500 times with following error:
> {noformat}
> 10:34:30,394][INFO ][main][root] >>> Stopping test:
> BPlusTreeSelfTest#testMassiveRemove2_true in 49 ms <<<
> [10:34:30,392][ERROR][main][root] Test failed.
> java.lang.AssertionError: Empty leaf page.
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.fail(BPlusTree.java:1214)
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.validateDownPages(BPlusTree.java:1285)
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.validateDownPages(BPlusTree.java:1311)
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.validateTree(BPlusTree.java:1102)
> at
> org.apache.ignite.internal.processors.database.BPlusTreeSelfTest.doTestMassiveRemove(BPlusTreeSelfTest.java:853)
> at
> org.apache.ignite.internal.processors.database.BPlusTreeSelfTest.testMassiveRemove2_true(BPlusTreeSelfTest.java:774)
> at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at junit.framework.TestCase.runTest(TestCase.java:176)
> at
> org.apache.ignite.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:1811)
> at
> org.apache.ignite.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:118)
> at
> org.apache.ignite.testframework.junits.GridAbstractTest$4.run(GridAbstractTest.java:1726)
> at java.lang.Thread.run(Thread.java:745)
> java.lang.AssertionError: Empty leaf page.
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.fail(BPlusTree.java:1214)
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.validateDownPages(BPlusTree.java:1285)
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.validateDownPages(BPlusTree.java:1311)
> at
> org.apache.ignite.internal.processors.cache.database.tree.BPlusTree.validateTree(BPlusTree.java:1102)
> at
> org.apache.ignite.internal.processors.database.BPlusTreeSelfTest.doTestMassiveRemove(BPlusTreeSelfTest.java:853)
> at
> org.apache.ignite.internal.processors.database.BPlusTreeSelfTest.testMassiveRemove2_true(BPlusTreeSelfTest.java:774)
> at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at junit.framework.TestCase.runTest(TestCase.java:176)
> at
> org.apache.ignite.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:1811)
> at
> org.apache.ignite.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:118)
> at
> org.apache.ignite.testframework.junits.GridAbstractTest$4.run(GridAbstractTest.java:1726)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> I've checked the test, seems a race happens while deleting pages, which
> prevents to merge empty leaf properly.
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