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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002,2010 Oracle. All rights reserved.
*
* $Id: SR12978Test.java,v 1.10.2.2 2010/01/04 15:30:42 cwl Exp $
*/
package com.sleepycat.je.cleaner;
import java.io.File;
import java.io.IOException;
import junit.framework.TestCase;
import com.sleepycat.bind.tuple.IntegerBinding;
import com.sleepycat.je.CheckpointConfig;
import com.sleepycat.je.Database;
import com.sleepycat.je.DatabaseConfig;
import com.sleepycat.je.DatabaseEntry;
import com.sleepycat.je.DatabaseException;
import com.sleepycat.je.DbInternal;
import com.sleepycat.je.Environment;
import com.sleepycat.je.EnvironmentConfig;
import com.sleepycat.je.OperationStatus;
import com.sleepycat.je.config.EnvironmentParams;
import com.sleepycat.je.log.FileManager;
import com.sleepycat.je.util.TestUtils;
/**
* Tests a fix to 12978, which was a ClassCastException in the following
* sequence.
*
* 1) A LN's BIN entry has the MIGRATE flag set.
*
* 2) Another LN with the same key is inserted (duplicates are allowed) and the
* first LN is moved to a dup tree,
*
* 3) The MIGRATE flag on the BIN entry is not cleared, and this entry now
* contains a DIN.
*
* 4) A split of the BIN occurs, logging the BIN with DIN entry. During a
* split we can't do migration, so we attempt to put the DIN onto the cleaner's
* pending list. We cast from DIN to LN, causing the exception.
*
* The fix was to clear the MIGRATE flag on the BIN entry at the time we update
* it to contain the DIN.
*
* This bug also left latches unreleased if a runtime exception occurred during
* a split, and that problem was fixed also.
*/
public class SR12978Test extends TestCase {
private static final String DB_NAME = "foo";
private static final CheckpointConfig forceConfig = new CheckpointConfig();
static {
forceConfig.setForce(true);
}
private File envHome;
private Environment env;
private Database db;
public SR12978Test() {
envHome = new File(System.getProperty(TestUtils.DEST_DIR));
}
public void setUp()
throws IOException, DatabaseException {
TestUtils.removeLogFiles("Setup", envHome, false);
TestUtils.removeFiles("Setup", envHome, FileManager.DEL_SUFFIX);
}
public void tearDown()
throws IOException, DatabaseException {
try {
if (env != null) {
env.close();
}
} catch (Throwable e) {
System.out.println("tearDown: " + e);
}
try {
TestUtils.removeLogFiles("tearDown", envHome, true);
TestUtils.removeFiles("tearDown", envHome, FileManager.DEL_SUFFIX);
} catch (Throwable e) {
System.out.println("tearDown: " + e);
}
db = null;
env = null;
envHome = null;
}
/**
* Opens the environment and database.
*/
private void open()
throws DatabaseException {
EnvironmentConfig config = TestUtils.initEnvConfig();
DbInternal.disableParameterValidation(config);
config.setAllowCreate(true);
/* Do not run the daemons. */
config.setConfigParam
(EnvironmentParams.ENV_RUN_CLEANER.getName(), "false");
config.setConfigParam
(EnvironmentParams.ENV_RUN_EVICTOR.getName(), "false");
config.setConfigParam
(EnvironmentParams.ENV_RUN_CHECKPOINTER.getName(), "false");
config.setConfigParam
(EnvironmentParams.ENV_RUN_INCOMPRESSOR.getName(), "false");
/* Configure to make cleaning more frequent. */
config.setConfigParam
(EnvironmentParams.LOG_FILE_MAX.getName(), "10240");
config.setConfigParam
(EnvironmentParams.CLEANER_MIN_UTILIZATION.getName(), "90");
env = new Environment(envHome, config);
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
dbConfig.setSortedDuplicates(true);
db = env.openDatabase(null, DB_NAME, dbConfig);
}
/**
* Closes the environment and database.
*/
private void close()
throws DatabaseException {
if (db != null) {
db.close();
db = null;
}
if (env != null) {
env.close();
env = null;
}
}
/**
*/
public void testSR12978()
throws DatabaseException {
open();
final int COUNT = 800;
DatabaseEntry key = new DatabaseEntry();
DatabaseEntry data = new DatabaseEntry();
OperationStatus status;
/*
* Insert enough non-dup records to write a few log files. Delete
* every other so that cleaning will occur. Leave key space so we can
* insert below to cause splits.
*/
IntegerBinding.intToEntry(0, data);
for (int i = 0; i < COUNT; i += 4) {
IntegerBinding.intToEntry(i + 0, key);
status = db.putNoOverwrite(null, key, data);
assertEquals(OperationStatus.SUCCESS, status);
IntegerBinding.intToEntry(i + 1, key);
status = db.putNoOverwrite(null, key, data);
assertEquals(OperationStatus.SUCCESS, status);
status = db.delete(null, key);
assertEquals(OperationStatus.SUCCESS, status);
}
/* Clean to set the MIGRATE flag on some LN entries. */
env.checkpoint(forceConfig);
int nCleaned = env.cleanLog();
assertTrue(nCleaned > 0);
/* Add dups to cause the LNs to be moved to a dup tree. */
IntegerBinding.intToEntry(1, data);
for (int i = 0; i < COUNT; i += 4) {
IntegerBinding.intToEntry(i + 0, key);
status = db.putNoDupData(null, key, data);
assertEquals(OperationStatus.SUCCESS, status);
}
/*
* Insert more unique keys to cause BIN splits. Before the fix to
* 12978, a CastCastException would occur during a split.
*/
IntegerBinding.intToEntry(0, data);
for (int i = 0; i < COUNT; i += 4) {
IntegerBinding.intToEntry(i + 2, key);
status = db.putNoOverwrite(null, key, data);
assertEquals(OperationStatus.SUCCESS, status);
IntegerBinding.intToEntry(i + 3, key);
status = db.putNoOverwrite(null, key, data);
assertEquals(OperationStatus.SUCCESS, status);
}
close();
}
}
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