phoenix-core/src/it/java/org/apache/phoenix/end2end/IndexToolForPartialBuildIT.java - phoenix - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.phoenix.end2end;

 import static org.apache.phoenix.util.TestUtil.TEST_PROPERTIES;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;

 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import java.util.Set;

 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.DoNotRetryIOException;
 import org.apache.hadoop.hbase.HBaseIOException;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.client.Mutation;
 import org.apache.hadoop.hbase.coprocessor.ObserverContext;
 import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
 import org.apache.hadoop.hbase.coprocessor.SimpleRegionObserver;
 import org.apache.hadoop.hbase.regionserver.MiniBatchOperationInProgress;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.phoenix.jdbc.PhoenixDatabaseMetaData;
 import org.apache.phoenix.mapreduce.index.IndexTool;
 import org.apache.phoenix.query.QueryConstants;
 import org.apache.phoenix.query.QueryServices;
 import org.apache.phoenix.query.QueryServicesOptions;
 import org.apache.phoenix.schema.PIndexState;
 import org.apache.phoenix.schema.PTable;
 import org.apache.phoenix.schema.PTableType;
 import org.apache.phoenix.util.PhoenixRuntime;
 import org.apache.phoenix.util.PropertiesUtil;
 import org.apache.phoenix.util.QueryUtil;
 import org.apache.phoenix.util.ReadOnlyProps;
 import org.apache.phoenix.util.SchemaUtil;
 import org.apache.phoenix.util.StringUtil;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 import org.junit.runners.Parameterized.Parameters;

 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;

 /**
  * Tests for the {@link IndexToolForPartialBuildIT}
  */
 @RunWith(Parameterized.class)
 public class IndexToolForPartialBuildIT extends BaseOwnClusterIT {

     private final boolean localIndex;
     protected boolean isNamespaceEnabled = false;
     protected final String tableDDLOptions;

     public IndexToolForPartialBuildIT(boolean localIndex) {

         this.localIndex = localIndex;
         StringBuilder optionBuilder = new StringBuilder();
         optionBuilder.append(" SPLIT ON(1,2)");
         this.tableDDLOptions = optionBuilder.toString();
     }

     @BeforeClass
     public static void doSetup() throws Exception {
         Map<String, String> serverProps = Maps.newHashMapWithExpectedSize(7);
         serverProps.put(QueryServices.EXTRA_JDBC_ARGUMENTS_ATTRIB, QueryServicesOptions.DEFAULT_EXTRA_JDBC_ARGUMENTS);
         serverProps.put("hbase.coprocessor.region.classes", FailingRegionObserver.class.getName());
         serverProps.put(" yarn.scheduler.capacity.maximum-am-resource-percent", "1.0");
         serverProps.put(HConstants.HBASE_CLIENT_RETRIES_NUMBER, "2");
         serverProps.put(HConstants.HBASE_RPC_TIMEOUT_KEY, "10000");
         serverProps.put("hbase.client.pause", "5000");
         serverProps.put(QueryServices.INDEX_FAILURE_HANDLING_REBUILD_ATTRIB, Boolean.FALSE.toString());
         Map<String, String> clientProps = Maps.newHashMapWithExpectedSize(1);
         setUpTestDriver(new ReadOnlyProps(serverProps.entrySet().iterator()), new ReadOnlyProps(clientProps.entrySet().iterator()));
     }

     @Parameters(name="localIndex = {0}")
     public static Collection<Boolean[]> data() {
         return Arrays.asList(new Boolean[][] {
                  { false},{ true }
            });
     }

     @Test
     public void testSecondaryIndex() throws Exception {
         String schemaName = generateUniqueName();
         String dataTableName = generateUniqueName();
         String fullTableName = SchemaUtil.getTableName(schemaName, dataTableName);
         final String indxTable = String.format("%s_%s", dataTableName, FailingRegionObserver.INDEX_NAME);
         Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
         props.setProperty(QueryServices.TRANSACTIONS_ENABLED, Boolean.TRUE.toString());
         props.setProperty(QueryServices.EXPLAIN_ROW_COUNT_ATTRIB, Boolean.FALSE.toString());
         props.setProperty(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, Boolean.toString(isNamespaceEnabled));
         final Connection conn = DriverManager.getConnection(getUrl(), props);
         Statement stmt = conn.createStatement();
         try {
             if (isNamespaceEnabled) {
                 conn.createStatement().execute("CREATE SCHEMA IF NOT EXISTS " + schemaName);
             }
             stmt.execute(
                     String.format("CREATE TABLE %s (ID BIGINT NOT NULL, NAME VARCHAR, ZIP INTEGER CONSTRAINT PK PRIMARY KEY(ID ROW_TIMESTAMP)) %s",
                             fullTableName, tableDDLOptions));
             String upsertQuery = String.format("UPSERT INTO %s VALUES(?, ?, ?)", fullTableName);
             PreparedStatement stmt1 = conn.prepareStatement(upsertQuery);
             FailingRegionObserver.FAIL_WRITE = false;
             // insert two rows
             upsertRow(stmt1, 1000);
             upsertRow(stmt1, 2000);

             conn.commit();
             stmt.execute(String.format("CREATE %s INDEX %s ON %s  (LPAD(UPPER(NAME),11,'x')||'_xyz') ",
                     (localIndex ? "LOCAL" : ""), indxTable, fullTableName));
             FailingRegionObserver.FAIL_WRITE = true;
             upsertRow(stmt1, 3000);
             upsertRow(stmt1, 4000);
             upsertRow(stmt1, 5000);
             try {
                 conn.commit();
                 fail();
             } catch (SQLException e) {} catch (Exception e) {}
             conn.createStatement()
                     .execute(String.format("ALTER INDEX %s on %s REBUILD ASYNC", indxTable, fullTableName));

             FailingRegionObserver.FAIL_WRITE = false;
             ResultSet rs = conn.getMetaData().getTables(null, StringUtil.escapeLike(schemaName), indxTable,
                     new String[] { PTableType.INDEX.toString() });
             assertTrue(rs.next());
             assertEquals(indxTable, rs.getString(3));
             String indexState = rs.getString("INDEX_STATE");
             assertEquals(PIndexState.BUILDING.toString(), indexState);
             assertFalse(rs.next());
             upsertRow(stmt1, 6000);
             upsertRow(stmt1, 7000);
             conn.commit();

 			rs = conn.createStatement()
 					.executeQuery(String.format("SELECT " + PhoenixDatabaseMetaData.ASYNC_REBUILD_TIMESTAMP + ","
 							+ PhoenixDatabaseMetaData.INDEX_DISABLE_TIMESTAMP + " FROM "
 							+ PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME + " ("
 							+ PhoenixDatabaseMetaData.ASYNC_REBUILD_TIMESTAMP + " bigint) where "
 							+ PhoenixDatabaseMetaData.TABLE_SCHEM + "='" + schemaName + "' and "
 							+ PhoenixDatabaseMetaData.TABLE_NAME + "='" + indxTable + "'"));
 			rs.next();
             PTable pindexTable = PhoenixRuntime.getTable(conn, SchemaUtil.getTableName(schemaName, indxTable));
             assertEquals(PIndexState.BUILDING, pindexTable.getIndexState());
             assertEquals(rs.getLong(1), pindexTable.getTimeStamp());
             //assert disabled timestamp
             assertEquals(rs.getLong(2), 3000);

             String selectSql = String.format("SELECT LPAD(UPPER(NAME),11,'x')||'_xyz',ID FROM %s", fullTableName);
             rs = conn.createStatement().executeQuery("EXPLAIN " + selectSql);
             String actualExplainPlan = QueryUtil.getExplainPlan(rs);

             // assert we are pulling from data table.
 			assertExplainPlan(actualExplainPlan, schemaName, dataTableName, null, false, isNamespaceEnabled);

             rs = stmt1.executeQuery(selectSql);
             for (int i = 1; i <= 7; i++) {
                 assertTrue(rs.next());
                 assertEquals("xxUNAME" + i*1000 + "_xyz", rs.getString(1));
             }

             // Validate Index table data till disabled timestamp
             rs = stmt1.executeQuery(String.format("SELECT * FROM %s", SchemaUtil.getTableName(schemaName, indxTable)));
             for (int i = 1; i <= 2; i++) {
                 assertTrue(rs.next());
                 assertEquals("xxUNAME" + i*1000 + "_xyz", rs.getString(1));
             }
             assertFalse(rs.next());
             // run the index MR job.
             final IndexTool indexingTool = new IndexTool();
             Configuration conf = new Configuration(getUtility().getConfiguration());
             conf.set(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, Boolean.toString(isNamespaceEnabled));
             indexingTool.setConf(conf);

             final String[] cmdArgs = getArgValues(schemaName, dataTableName);
             int status = indexingTool.run(cmdArgs);
             assertEquals(0, status);

             // insert two more rows
             upsertRow(stmt1, 8000);
             upsertRow(stmt1, 9000);
             conn.commit();

             // assert we are pulling from index table.
             rs = conn.createStatement().executeQuery("EXPLAIN " + selectSql);
             actualExplainPlan = QueryUtil.getExplainPlan(rs);
             assertExplainPlan(actualExplainPlan, schemaName, dataTableName, indxTable, localIndex, isNamespaceEnabled);

             rs = stmt.executeQuery(selectSql);

             for (int i = 1; i <= 9; i++) {
                 assertTrue(rs.next());
                 assertEquals("xxUNAME" + i*1000 + "_xyz", rs.getString(1));
             }

             assertFalse(rs.next());

            // conn.createStatement().execute(String.format("DROP INDEX  %s ON %s", indxTable, fullTableName));
         } finally {
             conn.close();
         }
     }

 	public static void assertExplainPlan(final String actualExplainPlan, String schemaName, String dataTable,
 			String indxTable, boolean isLocal, boolean isNamespaceMapped) {

 		String expectedExplainPlan = "";
 		if (indxTable != null) {
 			if (isLocal) {
 				final String localIndexName = SchemaUtil
 						.getPhysicalHBaseTableName(SchemaUtil.getTableName(schemaName, dataTable), isNamespaceMapped,
 								PTableType.INDEX)
 						.getString();
 				expectedExplainPlan = String.format("CLIENT PARALLEL 3-WAY RANGE SCAN OVER %s [1]", localIndexName);
 			} else {
 				expectedExplainPlan = String.format("CLIENT PARALLEL 1-WAY FULL SCAN OVER %s",
 						SchemaUtil.getPhysicalHBaseTableName(SchemaUtil.getTableName(schemaName, indxTable),
 								isNamespaceMapped, PTableType.INDEX));
 			}
 		} else {
 			expectedExplainPlan = String.format("CLIENT PARALLEL 1-WAY FULL SCAN OVER %s",
 					SchemaUtil.getPhysicalHBaseTableName(SchemaUtil.getTableName(schemaName, dataTable),
 							isNamespaceMapped, PTableType.TABLE));
 		}
 		assertTrue(actualExplainPlan.contains(expectedExplainPlan));
 	}

     public String[] getArgValues(String schemaName, String dataTable) {
         final List<String> args = Lists.newArrayList();
         if (schemaName!=null) {
             args.add("-s");
             args.add(schemaName);
         }
         args.add("-dt");
         args.add(dataTable);
         args.add("-pr");
         args.add("-op");
         args.add("/tmp/output/partialTable_"+localIndex);
         return args.toArray(new String[0]);
     }

     public static void upsertRow(PreparedStatement stmt, int i) throws SQLException {
         // insert row
         stmt.setInt(1, i);
         stmt.setString(2, "uname" + String.valueOf(i));
         stmt.setInt(3, 95050 + i);
         stmt.executeUpdate();
     }


     public static class FailingRegionObserver extends SimpleRegionObserver {
         public static volatile boolean FAIL_WRITE = false;
         public static final String INDEX_NAME = "IDX";
         @Override
         public void preBatchMutate(ObserverContext<RegionCoprocessorEnvironment> c, MiniBatchOperationInProgress<Mutation> miniBatchOp) throws HBaseIOException {
             if (c.getEnvironment().getRegionInfo().getTable().getNameAsString().contains(INDEX_NAME) && FAIL_WRITE) {
                 throw new DoNotRetryIOException();
             }
             Mutation operation = miniBatchOp.getOperation(0);
             Set<byte[]> keySet = operation.getFamilyMap().keySet();
             for(byte[] family: keySet) {
                 if(Bytes.toString(family).startsWith(QueryConstants.LOCAL_INDEX_COLUMN_FAMILY_PREFIX) && FAIL_WRITE) {
                     throw new DoNotRetryIOException();
                 }
             }
         }

     }

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.phoenix.end2end;

	import static org.apache.phoenix.util.TestUtil.TEST_PROPERTIES;
	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertFalse;
	import static org.junit.Assert.assertTrue;
	import static org.junit.Assert.fail;

	import java.sql.Connection;
	import java.sql.DriverManager;
	import java.sql.PreparedStatement;
	import java.sql.ResultSet;
	import java.sql.SQLException;
	import java.sql.Statement;
	import java.util.Arrays;
	import java.util.Collection;
	import java.util.List;
	import java.util.Map;
	import java.util.Properties;
	import java.util.Set;

	import org.apache.hadoop.conf.Configuration;
	import org.apache.hadoop.hbase.DoNotRetryIOException;
	import org.apache.hadoop.hbase.HBaseIOException;
	import org.apache.hadoop.hbase.HConstants;
	import org.apache.hadoop.hbase.client.Mutation;
	import org.apache.hadoop.hbase.coprocessor.ObserverContext;
	import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
	import org.apache.hadoop.hbase.coprocessor.SimpleRegionObserver;
	import org.apache.hadoop.hbase.regionserver.MiniBatchOperationInProgress;
	import org.apache.hadoop.hbase.util.Bytes;
	import org.apache.phoenix.jdbc.PhoenixDatabaseMetaData;
	import org.apache.phoenix.mapreduce.index.IndexTool;
	import org.apache.phoenix.query.QueryConstants;
	import org.apache.phoenix.query.QueryServices;
	import org.apache.phoenix.query.QueryServicesOptions;
	import org.apache.phoenix.schema.PIndexState;
	import org.apache.phoenix.schema.PTable;
	import org.apache.phoenix.schema.PTableType;
	import org.apache.phoenix.util.PhoenixRuntime;
	import org.apache.phoenix.util.PropertiesUtil;
	import org.apache.phoenix.util.QueryUtil;
	import org.apache.phoenix.util.ReadOnlyProps;
	import org.apache.phoenix.util.SchemaUtil;
	import org.apache.phoenix.util.StringUtil;
	import org.junit.BeforeClass;
	import org.junit.Test;
	import org.junit.runner.RunWith;
	import org.junit.runners.Parameterized;
	import org.junit.runners.Parameterized.Parameters;

	import com.google.common.collect.Lists;
	import com.google.common.collect.Maps;

	/**
	* Tests for the {@link IndexToolForPartialBuildIT}
	*/
	@RunWith(Parameterized.class)
	public class IndexToolForPartialBuildIT extends BaseOwnClusterIT {

	private final boolean localIndex;
	protected boolean isNamespaceEnabled = false;
	protected final String tableDDLOptions;

	public IndexToolForPartialBuildIT(boolean localIndex) {

	this.localIndex = localIndex;
	StringBuilder optionBuilder = new StringBuilder();
	optionBuilder.append(" SPLIT ON(1,2)");
	this.tableDDLOptions = optionBuilder.toString();
	}

	@BeforeClass
	public static void doSetup() throws Exception {
	Map<String, String> serverProps = Maps.newHashMapWithExpectedSize(7);
	serverProps.put(QueryServices.EXTRA_JDBC_ARGUMENTS_ATTRIB, QueryServicesOptions.DEFAULT_EXTRA_JDBC_ARGUMENTS);
	serverProps.put("hbase.coprocessor.region.classes", FailingRegionObserver.class.getName());
	serverProps.put(" yarn.scheduler.capacity.maximum-am-resource-percent", "1.0");
	serverProps.put(HConstants.HBASE_CLIENT_RETRIES_NUMBER, "2");
	serverProps.put(HConstants.HBASE_RPC_TIMEOUT_KEY, "10000");
	serverProps.put("hbase.client.pause", "5000");
	serverProps.put(QueryServices.INDEX_FAILURE_HANDLING_REBUILD_ATTRIB, Boolean.FALSE.toString());
	Map<String, String> clientProps = Maps.newHashMapWithExpectedSize(1);
	setUpTestDriver(new ReadOnlyProps(serverProps.entrySet().iterator()), new ReadOnlyProps(clientProps.entrySet().iterator()));
	}

	@Parameters(name="localIndex = {0}")
	public static Collection<Boolean[]> data() {
	return Arrays.asList(new Boolean[][] {
	{ false},{ true }
	});
	}

	@Test
	public void testSecondaryIndex() throws Exception {
	String schemaName = generateUniqueName();
	String dataTableName = generateUniqueName();
	String fullTableName = SchemaUtil.getTableName(schemaName, dataTableName);
	final String indxTable = String.format("%s_%s", dataTableName, FailingRegionObserver.INDEX_NAME);
	Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
	props.setProperty(QueryServices.TRANSACTIONS_ENABLED, Boolean.TRUE.toString());
	props.setProperty(QueryServices.EXPLAIN_ROW_COUNT_ATTRIB, Boolean.FALSE.toString());
	props.setProperty(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, Boolean.toString(isNamespaceEnabled));
	final Connection conn = DriverManager.getConnection(getUrl(), props);
	Statement stmt = conn.createStatement();
	try {
	if (isNamespaceEnabled) {
	conn.createStatement().execute("CREATE SCHEMA IF NOT EXISTS " + schemaName);
	}
	stmt.execute(
	String.format("CREATE TABLE %s (ID BIGINT NOT NULL, NAME VARCHAR, ZIP INTEGER CONSTRAINT PK PRIMARY KEY(ID ROW_TIMESTAMP)) %s",
	fullTableName, tableDDLOptions));
	String upsertQuery = String.format("UPSERT INTO %s VALUES(?, ?, ?)", fullTableName);
	PreparedStatement stmt1 = conn.prepareStatement(upsertQuery);
	FailingRegionObserver.FAIL_WRITE = false;
	// insert two rows
	upsertRow(stmt1, 1000);
	upsertRow(stmt1, 2000);

	conn.commit();
	stmt.execute(String.format("CREATE %s INDEX %s ON %s (LPAD(UPPER(NAME),11,'x')\|\|'_xyz') ",
	(localIndex ? "LOCAL" : ""), indxTable, fullTableName));
	FailingRegionObserver.FAIL_WRITE = true;
	upsertRow(stmt1, 3000);
	upsertRow(stmt1, 4000);
	upsertRow(stmt1, 5000);
	try {
	conn.commit();
	fail();
	} catch (SQLException e) {} catch (Exception e) {}
	conn.createStatement()
	.execute(String.format("ALTER INDEX %s on %s REBUILD ASYNC", indxTable, fullTableName));

	FailingRegionObserver.FAIL_WRITE = false;
	ResultSet rs = conn.getMetaData().getTables(null, StringUtil.escapeLike(schemaName), indxTable,
	new String[] { PTableType.INDEX.toString() });
	assertTrue(rs.next());
	assertEquals(indxTable, rs.getString(3));
	String indexState = rs.getString("INDEX_STATE");
	assertEquals(PIndexState.BUILDING.toString(), indexState);
	assertFalse(rs.next());
	upsertRow(stmt1, 6000);
	upsertRow(stmt1, 7000);
	conn.commit();

	rs = conn.createStatement()
	.executeQuery(String.format("SELECT " + PhoenixDatabaseMetaData.ASYNC_REBUILD_TIMESTAMP + ","
	+ PhoenixDatabaseMetaData.INDEX_DISABLE_TIMESTAMP + " FROM "
	+ PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME + " ("
	+ PhoenixDatabaseMetaData.ASYNC_REBUILD_TIMESTAMP + " bigint) where "
	+ PhoenixDatabaseMetaData.TABLE_SCHEM + "='" + schemaName + "' and "
	+ PhoenixDatabaseMetaData.TABLE_NAME + "='" + indxTable + "'"));
	rs.next();
	PTable pindexTable = PhoenixRuntime.getTable(conn, SchemaUtil.getTableName(schemaName, indxTable));
	assertEquals(PIndexState.BUILDING, pindexTable.getIndexState());
	assertEquals(rs.getLong(1), pindexTable.getTimeStamp());
	//assert disabled timestamp
	assertEquals(rs.getLong(2), 3000);

	String selectSql = String.format("SELECT LPAD(UPPER(NAME),11,'x')\|\|'_xyz',ID FROM %s", fullTableName);
	rs = conn.createStatement().executeQuery("EXPLAIN " + selectSql);
	String actualExplainPlan = QueryUtil.getExplainPlan(rs);

	// assert we are pulling from data table.
	assertExplainPlan(actualExplainPlan, schemaName, dataTableName, null, false, isNamespaceEnabled);

	rs = stmt1.executeQuery(selectSql);
	for (int i = 1; i <= 7; i++) {
	assertTrue(rs.next());
	assertEquals("xxUNAME" + i*1000 + "_xyz", rs.getString(1));
	}

	// Validate Index table data till disabled timestamp
	rs = stmt1.executeQuery(String.format("SELECT * FROM %s", SchemaUtil.getTableName(schemaName, indxTable)));
	for (int i = 1; i <= 2; i++) {
	assertTrue(rs.next());
	assertEquals("xxUNAME" + i*1000 + "_xyz", rs.getString(1));
	}
	assertFalse(rs.next());
	// run the index MR job.
	final IndexTool indexingTool = new IndexTool();
	Configuration conf = new Configuration(getUtility().getConfiguration());
	conf.set(QueryServices.IS_NAMESPACE_MAPPING_ENABLED, Boolean.toString(isNamespaceEnabled));
	indexingTool.setConf(conf);

	final String[] cmdArgs = getArgValues(schemaName, dataTableName);
	int status = indexingTool.run(cmdArgs);
	assertEquals(0, status);

	// insert two more rows
	upsertRow(stmt1, 8000);
	upsertRow(stmt1, 9000);
	conn.commit();

	// assert we are pulling from index table.
	rs = conn.createStatement().executeQuery("EXPLAIN " + selectSql);
	actualExplainPlan = QueryUtil.getExplainPlan(rs);
	assertExplainPlan(actualExplainPlan, schemaName, dataTableName, indxTable, localIndex, isNamespaceEnabled);

	rs = stmt.executeQuery(selectSql);

	for (int i = 1; i <= 9; i++) {
	assertTrue(rs.next());
	assertEquals("xxUNAME" + i*1000 + "_xyz", rs.getString(1));
	}

	assertFalse(rs.next());

	// conn.createStatement().execute(String.format("DROP INDEX %s ON %s", indxTable, fullTableName));
	} finally {
	conn.close();
	}
	}

	public static void assertExplainPlan(final String actualExplainPlan, String schemaName, String dataTable,
	String indxTable, boolean isLocal, boolean isNamespaceMapped) {

	String expectedExplainPlan = "";
	if (indxTable != null) {
	if (isLocal) {
	final String localIndexName = SchemaUtil
	.getPhysicalHBaseTableName(SchemaUtil.getTableName(schemaName, dataTable), isNamespaceMapped,
	PTableType.INDEX)
	.getString();
	expectedExplainPlan = String.format("CLIENT PARALLEL 3-WAY RANGE SCAN OVER %s [1]", localIndexName);
	} else {
	expectedExplainPlan = String.format("CLIENT PARALLEL 1-WAY FULL SCAN OVER %s",
	SchemaUtil.getPhysicalHBaseTableName(SchemaUtil.getTableName(schemaName, indxTable),
	isNamespaceMapped, PTableType.INDEX));
	}
	} else {
	expectedExplainPlan = String.format("CLIENT PARALLEL 1-WAY FULL SCAN OVER %s",
	SchemaUtil.getPhysicalHBaseTableName(SchemaUtil.getTableName(schemaName, dataTable),
	isNamespaceMapped, PTableType.TABLE));
	}
	assertTrue(actualExplainPlan.contains(expectedExplainPlan));
	}

	public String[] getArgValues(String schemaName, String dataTable) {
	final List<String> args = Lists.newArrayList();
	if (schemaName!=null) {
	args.add("-s");
	args.add(schemaName);
	}
	args.add("-dt");
	args.add(dataTable);
	args.add("-pr");
	args.add("-op");
	args.add("/tmp/output/partialTable_"+localIndex);
	return args.toArray(new String[0]);
	}

	public static void upsertRow(PreparedStatement stmt, int i) throws SQLException {
	// insert row
	stmt.setInt(1, i);
	stmt.setString(2, "uname" + String.valueOf(i));
	stmt.setInt(3, 95050 + i);
	stmt.executeUpdate();
	}


	public static class FailingRegionObserver extends SimpleRegionObserver {
	public static volatile boolean FAIL_WRITE = false;
	public static final String INDEX_NAME = "IDX";
	@Override
	public void preBatchMutate(ObserverContext<RegionCoprocessorEnvironment> c, MiniBatchOperationInProgress<Mutation> miniBatchOp) throws HBaseIOException {
	if (c.getEnvironment().getRegionInfo().getTable().getNameAsString().contains(INDEX_NAME) && FAIL_WRITE) {
	throw new DoNotRetryIOException();
	}
	Mutation operation = miniBatchOp.getOperation(0);
	Set<byte[]> keySet = operation.getFamilyMap().keySet();
	for(byte[] family: keySet) {
	if(Bytes.toString(family).startsWith(QueryConstants.LOCAL_INDEX_COLUMN_FAMILY_PREFIX) && FAIL_WRITE) {
	throw new DoNotRetryIOException();
	}
	}
	}

	}

	}