TestCreateTableProcedure.java example

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hbase-master
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.hadoop.hbase.master.procedure;

import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.ProcedureInfo;
import org.apache.hadoop.hbase.TableExistsException;
import org.apache.hadoop.hbase.TableName;
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.apache.hadoop.hbase.util.ModifyRegionUtils;
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 TestCreateTableProcedure extends TestTableDDLProcedureBase {
  @Rule
  public TestName name = new TestName();

  @Test(timeout=60000)
  public void testSimpleCreate() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());
    final byte[][] splitKeys = null;
    testSimpleCreate(tableName, splitKeys);
  }

  @Test(timeout=60000)
  public void testSimpleCreateWithSplits() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());
    final byte[][] splitKeys = new byte[][] {
      Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")
    };
    testSimpleCreate(tableName, splitKeys);
  }

  private void testSimpleCreate(final TableName tableName, byte[][] splitKeys) throws Exception {
    HRegionInfo[] regions = MasterProcedureTestingUtility.createTable(
      getMasterProcedureExecutor(), tableName, splitKeys, "f1", "f2");
    MasterProcedureTestingUtility.validateTableCreation(
      UTIL.getHBaseCluster().getMaster(), tableName, regions, "f1", "f2");
  }

  @Test(timeout=60000)
  public void testCreateWithoutColumnFamily() throws Exception {
    final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
    final TableName tableName = TableName.valueOf(name.getMethodName());
    // create table with 0 families will fail
    final HTableDescriptor htd = MasterProcedureTestingUtility.createHTD(tableName);

    // disable sanity check
    htd.setConfiguration("hbase.table.sanity.checks", Boolean.FALSE.toString());
    final HRegionInfo[] regions = ModifyRegionUtils.createHRegionInfos(htd, null);

    long procId =
        ProcedureTestingUtility.submitAndWait(procExec,
            new CreateTableProcedure(procExec.getEnvironment(), htd, regions));
    final ProcedureInfo result = procExec.getResult(procId);
    assertEquals(true, result.isFailed());
    Throwable cause = ProcedureTestingUtility.getExceptionCause(result);
    assertTrue("expected DoNotRetryIOException, got " + cause,
        cause instanceof DoNotRetryIOException);
  }

  @Test(timeout=60000, expected=TableExistsException.class)
  public void testCreateExisting() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());
    final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
    final HTableDescriptor htd = MasterProcedureTestingUtility.createHTD(tableName, "f");
    final HRegionInfo[] regions = ModifyRegionUtils.createHRegionInfos(htd, null);

    // create the table
    long procId1 = procExec.submitProcedure(
      new CreateTableProcedure(procExec.getEnvironment(), htd, regions));

    // create another with the same name
    ProcedurePrepareLatch latch2 = new ProcedurePrepareLatch.CompatibilityLatch();
    long procId2 = procExec.submitProcedure(
      new CreateTableProcedure(procExec.getEnvironment(), htd, regions, latch2));

    ProcedureTestingUtility.waitProcedure(procExec, procId1);
    ProcedureTestingUtility.assertProcNotFailed(procExec.getResult(procId1));

    ProcedureTestingUtility.waitProcedure(procExec, procId2);
    latch2.await();
  }

  @Test(timeout=60000)
  public void testRecoveryAndDoubleExecution() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());

    // create the table
    final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
    ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);

    // Start the Create procedure && kill the executor
    byte[][] splitKeys = null;
    HTableDescriptor htd = MasterProcedureTestingUtility.createHTD(tableName, "f1", "f2");
    HRegionInfo[] regions = ModifyRegionUtils.createHRegionInfos(htd, splitKeys);
    long procId = procExec.submitProcedure(
      new CreateTableProcedure(procExec.getEnvironment(), htd, regions));

    // Restart the executor and execute the step twice
    // NOTE: the 6 (number of CreateTableState steps) is hardcoded,
    //       so you have to look at this test at least once when you add a new step.
    MasterProcedureTestingUtility.testRecoveryAndDoubleExecution(procExec, procId, 6);

    MasterProcedureTestingUtility.validateTableCreation(
      UTIL.getHBaseCluster().getMaster(), tableName, regions, "f1", "f2");
  }

  @Test(timeout=90000)
  public void testRollbackAndDoubleExecution() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());
    testRollbackAndDoubleExecution(MasterProcedureTestingUtility.createHTD(tableName, "f1", "f2"));
  }

  @Test(timeout=90000)
  public void testRollbackAndDoubleExecutionOnMobTable() throws Exception {
    final TableName tableName = TableName.valueOf(name.getMethodName());
    HTableDescriptor htd = MasterProcedureTestingUtility.createHTD(tableName, "f1", "f2");
    htd.getFamily(Bytes.toBytes("f1")).setMobEnabled(true);
    testRollbackAndDoubleExecution(htd);
  }

  private void testRollbackAndDoubleExecution(HTableDescriptor htd) throws Exception {
    // create the table
    final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
    ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);

    // Start the Create procedure && kill the executor
    final byte[][] splitKeys = new byte[][] {
      Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")
    };
    htd.setRegionReplication(3);
    HRegionInfo[] regions = ModifyRegionUtils.createHRegionInfos(htd, splitKeys);
    long procId = procExec.submitProcedure(
      new CreateTableProcedure(procExec.getEnvironment(), htd, regions));

    int numberOfSteps = 0; // failing at pre operation
    MasterProcedureTestingUtility.testRollbackAndDoubleExecution(procExec, procId, numberOfSteps);

    TableName tableName = htd.getTableName();
    MasterProcedureTestingUtility.validateTableDeletion(
      UTIL.getHBaseCluster().getMaster(), tableName);

    // are we able to create the table after a rollback?
    resetProcExecutorTestingKillFlag();
    testSimpleCreate(tableName, splitKeys);
  }
}