HBASE-24993 Remove OfflineMetaRebuildTestCore (#2359)
Signed-off-by: Guanghao Zhang <zghao@apache.org> Signed-off-by: Viraj Jasani <vjasani@apache.org> Signed-off-by: Duo Zhang <zhangduo@apache.org>
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.util.hbck;
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import static org.junit.Assert.assertEquals;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataOutputStream;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.hbase.CatalogFamilyFormat;
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import org.apache.hadoop.hbase.HBaseTestingUtility;
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import org.apache.hadoop.hbase.HRegionLocation;
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import org.apache.hadoop.hbase.MetaTableAccessor;
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import org.apache.hadoop.hbase.NamespaceDescriptor;
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import org.apache.hadoop.hbase.ServerName;
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import org.apache.hadoop.hbase.TableName;
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import org.apache.hadoop.hbase.client.Admin;
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import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
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import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
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import org.apache.hadoop.hbase.client.Connection;
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import org.apache.hadoop.hbase.client.ConnectionFactory;
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import org.apache.hadoop.hbase.client.Delete;
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import org.apache.hadoop.hbase.client.Put;
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import org.apache.hadoop.hbase.client.RegionInfo;
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import org.apache.hadoop.hbase.client.RegionInfoBuilder;
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import org.apache.hadoop.hbase.client.RegionLocator;
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import org.apache.hadoop.hbase.client.Result;
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import org.apache.hadoop.hbase.client.ResultScanner;
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import org.apache.hadoop.hbase.client.Scan;
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import org.apache.hadoop.hbase.client.Table;
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import org.apache.hadoop.hbase.client.TableDescriptor;
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import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
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import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;
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import org.apache.hadoop.hbase.testclassification.LargeTests;
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import org.apache.hadoop.hbase.testclassification.MiscTests;
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import org.apache.hadoop.hbase.util.Bytes;
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import org.apache.hadoop.hbase.util.CommonFSUtils;
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import org.apache.zookeeper.KeeperException;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.experimental.categories.Category;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* This testing base class creates a minicluster and testing table table
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* and shuts down the cluster afterwards. It also provides methods wipes out
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* meta and to inject errors into meta and the file system.
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*
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* Tests should generally break stuff, then attempt to rebuild the meta table
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* offline, then restart hbase, and finally perform checks.
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*
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* NOTE: This is a slow set of tests which takes ~30s each needs to run on a
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* relatively beefy machine. It seems necessary to have each test in a new jvm
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* since minicluster startup and tear downs seem to leak file handles and
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* eventually cause out of file handle exceptions.
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*/
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@Category({MiscTests.class, LargeTests.class})
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public class OfflineMetaRebuildTestCore {
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private final static Logger LOG = LoggerFactory
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.getLogger(OfflineMetaRebuildTestCore.class);
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protected HBaseTestingUtility TEST_UTIL;
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protected Configuration conf;
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private final static byte[] FAM = Bytes.toBytes("fam");
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// for the instance, reset every test run
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protected Table htbl;
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protected final static byte[][] splits = new byte[][] { Bytes.toBytes("A"),
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Bytes.toBytes("B"), Bytes.toBytes("C") };
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private final static String TABLE_BASE = "tableMetaRebuild";
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private static int tableIdx = 0;
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protected TableName table = TableName.valueOf("tableMetaRebuild");
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protected Connection connection;
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@Before
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public void setUpBefore() throws Exception {
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TEST_UTIL = new HBaseTestingUtility();
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TEST_UTIL.getConfiguration().setInt("dfs.datanode.max.xceivers", 9192);
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TEST_UTIL.startMiniCluster(3);
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conf = TEST_UTIL.getConfiguration();
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this.connection = ConnectionFactory.createConnection(conf);
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assertEquals(0, TEST_UTIL.getAdmin().listTableDescriptors().size());
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// setup the table
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table = TableName.valueOf(TABLE_BASE + "-" + tableIdx);
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tableIdx++;
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htbl = setupTable(table);
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populateTable(htbl);
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assertEquals(5, scanMeta());
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LOG.info("Table " + table + " has " + tableRowCount(conf, table)
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+ " entries.");
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assertEquals(16, tableRowCount(conf, table));
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TEST_UTIL.getAdmin().disableTable(table);
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assertEquals(1, TEST_UTIL.getAdmin().listTableDescriptors().size());
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}
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@After
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public void tearDownAfter() throws Exception {
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if (this.htbl != null) {
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this.htbl.close();
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this.htbl = null;
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}
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this.connection.close();
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TEST_UTIL.shutdownMiniCluster();
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}
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/**
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* Setup a clean table before we start mucking with it.
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*
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* @throws IOException
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* @throws InterruptedException
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* @throws KeeperException
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*/
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private Table setupTable(TableName tablename) throws Exception {
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TableDescriptorBuilder tableDescriptorBuilder =
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TableDescriptorBuilder.newBuilder(tablename);
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ColumnFamilyDescriptor columnFamilyDescriptor =
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ColumnFamilyDescriptorBuilder.newBuilder(FAM).build();
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// If a table has no CF's it doesn't get checked
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tableDescriptorBuilder.setColumnFamily(columnFamilyDescriptor);
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TEST_UTIL.getAdmin().createTable(tableDescriptorBuilder.build(), splits);
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return this.connection.getTable(tablename);
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}
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private void dumpMeta(TableDescriptor htd) throws IOException {
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List<byte[]> metaRows = TEST_UTIL.getMetaTableRows(htd.getTableName());
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for (byte[] row : metaRows) {
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LOG.info(Bytes.toString(row));
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}
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}
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private void populateTable(Table tbl) throws IOException {
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byte[] values = { 'A', 'B', 'C', 'D' };
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List<Put> puts = new ArrayList<>();
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for (int i = 0; i < values.length; i++) {
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for (int j = 0; j < values.length; j++) {
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Put put = new Put(new byte[] { values[i], values[j] });
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put.addColumn(Bytes.toBytes("fam"), new byte[]{}, new byte[]{values[i],
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values[j]});
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puts.add(put);
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}
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}
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tbl.put(puts);
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}
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protected void deleteRegion(Configuration conf, final Table tbl,
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byte[] startKey, byte[] endKey) throws IOException {
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LOG.info("Before delete:");
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TableDescriptor htd = tbl.getDescriptor();
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dumpMeta(htd);
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List<HRegionLocation> regions;
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try(RegionLocator rl = connection.getRegionLocator(tbl.getName())) {
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regions = rl.getAllRegionLocations();
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}
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for (HRegionLocation e : regions) {
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RegionInfo hri = e.getRegion();
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ServerName hsa = e.getServerName();
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if (Bytes.compareTo(hri.getStartKey(), startKey) == 0
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&& Bytes.compareTo(hri.getEndKey(), endKey) == 0) {
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LOG.info("RegionName: " + hri.getRegionNameAsString());
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byte[] deleteRow = hri.getRegionName();
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TEST_UTIL.getAdmin().unassign(deleteRow, true);
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LOG.info("deleting hdfs data: " + hri.toString() + hsa.toString());
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Path rootDir = CommonFSUtils.getRootDir(conf);
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FileSystem fs = rootDir.getFileSystem(conf);
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Path p = new Path(CommonFSUtils.getTableDir(rootDir, htd.getTableName()),
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hri.getEncodedName());
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fs.delete(p, true);
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try (Table meta = this.connection.getTable(TableName.META_TABLE_NAME)) {
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Delete delete = new Delete(deleteRow);
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meta.delete(delete);
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}
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}
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LOG.info(hri.toString() + hsa.toString());
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}
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TEST_UTIL.getMetaTableRows(htd.getTableName());
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LOG.info("After delete:");
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dumpMeta(htd);
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}
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protected RegionInfo createRegion(Configuration conf, final Table htbl,
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byte[] startKey, byte[] endKey) throws IOException {
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Table meta = TEST_UTIL.getConnection().getTable(TableName.META_TABLE_NAME);
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RegionInfo hri = RegionInfoBuilder.newBuilder(htbl.getName())
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.setStartKey(startKey)
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.setEndKey(endKey)
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.build();
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LOG.info("manually adding regioninfo and hdfs data: " + hri.toString());
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Path rootDir = CommonFSUtils.getRootDir(conf);
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FileSystem fs = rootDir.getFileSystem(conf);
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Path p = new Path(CommonFSUtils.getTableDir(rootDir, htbl.getName()),
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hri.getEncodedName());
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fs.mkdirs(p);
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Path riPath = new Path(p, HRegionFileSystem.REGION_INFO_FILE);
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FSDataOutputStream out = fs.create(riPath);
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out.write(RegionInfo.toDelimitedByteArray(hri));
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out.close();
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// add to meta.
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MetaTableAccessor.addRegionToMeta(TEST_UTIL.getConnection(), hri);
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meta.close();
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return hri;
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}
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protected void wipeOutMeta() throws IOException {
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// Mess it up by blowing up meta.
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Admin admin = TEST_UTIL.getAdmin();
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Scan s = new Scan();
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Table meta = TEST_UTIL.getConnection().getTable(TableName.META_TABLE_NAME);
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ResultScanner scanner = meta.getScanner(s);
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List<Delete> dels = new ArrayList<>();
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for (Result r : scanner) {
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RegionInfo info =
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CatalogFamilyFormat.getRegionInfo(r);
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if(info != null && !info.getTable().getNamespaceAsString()
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.equals(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR)) {
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Delete d = new Delete(r.getRow());
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dels.add(d);
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admin.unassign(r.getRow(), true);
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}
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}
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meta.delete(dels);
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scanner.close();
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meta.close();
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}
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/**
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* Returns the number of rows in a given table. HBase must be up and the table
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* should be present (will wait for timeout for a while otherwise)
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*
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* @return # of rows in the specified table
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*/
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protected int tableRowCount(Configuration conf, TableName table)
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throws IOException {
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Table t = TEST_UTIL.getConnection().getTable(table);
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Scan st = new Scan();
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ResultScanner rst = t.getScanner(st);
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int count = 0;
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for (@SuppressWarnings("unused")
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Result rt : rst) {
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count++;
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}
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t.close();
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return count;
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}
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/**
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* Dumps hbase:meta table info
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*
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* @return # of entries in meta.
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*/
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protected int scanMeta() throws IOException {
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LOG.info("Scanning META");
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MetaTableAccessor.fullScanMetaAndPrint(TEST_UTIL.getConnection());
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return MetaTableAccessor.fullScanRegions(TEST_UTIL.getConnection()).size();
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}
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protected List<TableDescriptor> getTables(final Configuration configuration) throws IOException {
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try (Connection connection = ConnectionFactory.createConnection(configuration)) {
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try (Admin admin = connection.getAdmin()) {
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return admin.listTableDescriptors();
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}
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}
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}
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}
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