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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.hadoop.hbase.master.procedure;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.ProcedureInfo;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.TableNotDisabledException;
import org.apache.hadoop.hbase.TableNotFoundException;
import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;
import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;
import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
@Category({MasterTests.class, MediumTests.class})
public class TestTruncateTableProcedure extends TestTableDDLProcedureBase {
private static final Log LOG = LogFactory.getLog(TestTruncateTableProcedure.class);
@Rule
public TestName name = new TestName();
@Test(timeout=60000)
public void testTruncateNotExistentTable() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
long procId = ProcedureTestingUtility.submitAndWait(procExec,
new TruncateTableProcedure(procExec.getEnvironment(), tableName, true));
// Second delete should fail with TableNotFound
ProcedureInfo result = procExec.getResult(procId);
assertTrue(result.isFailed());
LOG.debug("Truncate failed with exception: " + result.getExceptionFullMessage());
assertTrue(ProcedureTestingUtility.getExceptionCause(result) instanceof TableNotFoundException);
}
@Test(timeout=60000)
public void testTruncateNotDisabledTable() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
MasterProcedureTestingUtility.createTable(procExec, tableName, null, "f");
long procId = ProcedureTestingUtility.submitAndWait(procExec,
new TruncateTableProcedure(procExec.getEnvironment(), tableName, false));
// Second delete should fail with TableNotDisabled
ProcedureInfo result = procExec.getResult(procId);
assertTrue(result.isFailed());
LOG.debug("Truncate failed with exception: " + result.getExceptionFullMessage());
assertTrue(
ProcedureTestingUtility.getExceptionCause(result) instanceof TableNotDisabledException);
}
@Test(timeout=60000)
public void testSimpleTruncatePreserveSplits() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
testSimpleTruncate(tableName, true);
}
@Test(timeout=60000)
public void testSimpleTruncateNoPreserveSplits() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
testSimpleTruncate(tableName, false);
}
private void testSimpleTruncate(final TableName tableName, final boolean preserveSplits)
throws Exception {
final String[] families = new String[] { "f1", "f2" };
final byte[][] splitKeys = new byte[][] {
Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")
};
HRegionInfo[] regions = MasterProcedureTestingUtility.createTable(
getMasterProcedureExecutor(), tableName, splitKeys, families);
// load and verify that there are rows in the table
MasterProcedureTestingUtility.loadData(
UTIL.getConnection(), tableName, 100, splitKeys, families);
assertEquals(100, UTIL.countRows(tableName));
// disable the table
UTIL.getAdmin().disableTable(tableName);
// truncate the table
final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
long procId = ProcedureTestingUtility.submitAndWait(procExec,
new TruncateTableProcedure(procExec.getEnvironment(), tableName, preserveSplits));
ProcedureTestingUtility.assertProcNotFailed(procExec, procId);
UTIL.waitUntilAllRegionsAssigned(tableName);
// validate the table regions and layout
regions = UTIL.getAdmin().getTableRegions(tableName).toArray(new HRegionInfo[0]);
if (preserveSplits) {
assertEquals(1 + splitKeys.length, regions.length);
} else {
assertEquals(1, regions.length);
}
MasterProcedureTestingUtility.validateTableCreation(
UTIL.getHBaseCluster().getMaster(), tableName, regions, families);
// verify that there are no rows in the table
assertEquals(0, UTIL.countRows(tableName));
// verify that the table is read/writable
MasterProcedureTestingUtility.loadData(
UTIL.getConnection(), tableName, 50, splitKeys, families);
assertEquals(50, UTIL.countRows(tableName));
}
@Test(timeout=60000)
public void testRecoveryAndDoubleExecutionPreserveSplits() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
testRecoveryAndDoubleExecution(tableName, true);
}
@Test(timeout=60000)
public void testRecoveryAndDoubleExecutionNoPreserveSplits() throws Exception {
final TableName tableName = TableName.valueOf(name.getMethodName());
testRecoveryAndDoubleExecution(tableName, false);
}
private void testRecoveryAndDoubleExecution(final TableName tableName,
final boolean preserveSplits) throws Exception {
final String[] families = new String[] { "f1", "f2" };
// create the table
final byte[][] splitKeys = new byte[][] {
Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")
};
HRegionInfo[] regions = MasterProcedureTestingUtility.createTable(
getMasterProcedureExecutor(), tableName, splitKeys, families);
// load and verify that there are rows in the table
MasterProcedureTestingUtility.loadData(
UTIL.getConnection(), tableName, 100, splitKeys, families);
assertEquals(100, UTIL.countRows(tableName));
// disable the table
UTIL.getAdmin().disableTable(tableName);
final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
ProcedureTestingUtility.waitNoProcedureRunning(procExec);
ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);
// Start the Truncate procedure && kill the executor
long procId = procExec.submitProcedure(
new TruncateTableProcedure(procExec.getEnvironment(), tableName, preserveSplits));
// Restart the executor and execute the step twice
// NOTE: the 7 (number of TruncateTableState steps) is hardcoded,
// so you have to look at this test at least once when you add a new step.
MasterProcedureTestingUtility.testRecoveryAndDoubleExecution(procExec, procId, 7);
ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, false);
UTIL.waitUntilAllRegionsAssigned(tableName);
// validate the table regions and layout
regions = UTIL.getAdmin().getTableRegions(tableName).toArray(new HRegionInfo[0]);
if (preserveSplits) {
assertEquals(1 + splitKeys.length, regions.length);
} else {
assertEquals(1, regions.length);
}
MasterProcedureTestingUtility.validateTableCreation(
UTIL.getHBaseCluster().getMaster(), tableName, regions, families);
// verify that there are no rows in the table
assertEquals(0, UTIL.countRows(tableName));
// verify that the table is read/writable
MasterProcedureTestingUtility.loadData(
UTIL.getConnection(), tableName, 50, splitKeys, families);
assertEquals(50, UTIL.countRows(tableName));
}
}