/**
* Creates the tables used by the graph store.
*
* @param config Hadoop configuration
* @param vertexDataHandler vertex storage handler
* @param edgeDataHandler edge storage handler
* @param graphDataHandler graph storage handler
* @param vertexDataTableName vertex data table name
* @param edgeTableName edge data table name
* @param graphDataTableName graph data table name
* @throws IOException
*/
private static void createTablesIfNotExists(
final Configuration config,
final VertexDataHandler vertexDataHandler,
final EdgeDataHandler edgeDataHandler,
final GraphDataHandler graphDataHandler,
final String vertexDataTableName,
final String edgeTableName,
final String graphDataTableName)
throws IOException {
HTableDescriptor vertexDataTableDescriptor =
new HTableDescriptor(TableName.valueOf(vertexDataTableName));
HTableDescriptor edgeDataTableDescriptor =
new HTableDescriptor(TableName.valueOf(edgeTableName));
HTableDescriptor graphDataTableDescriptor =
new HTableDescriptor(TableName.valueOf(graphDataTableName));
HBaseAdmin admin = new HBaseAdmin(config);
if (!admin.tableExists(vertexDataTableDescriptor.getName())) {
vertexDataHandler.createTable(admin, vertexDataTableDescriptor);
}
if (!admin.tableExists(edgeDataTableDescriptor.getName())) {
edgeDataHandler.createTable(admin, edgeDataTableDescriptor);
}
if (!admin.tableExists(graphDataTableDescriptor.getName())) {
graphDataHandler.createTable(admin, graphDataTableDescriptor);
}
admin.close();
}
/**
* This test assumes a master crash/failure during the meta migration process and attempts to
* continue the meta migration process when a new master takes over. When a master dies during the
* meta migration we will have some rows of META.CatalogFamily updated with PB serialization and
* some still hanging with writable serialization. When the backup master/ or fresh start of
* master attempts the migration it will encounter some rows of META already updated with new HRI
* and some still legacy. This test will simulate this scenario and validates that the migration
* process can safely skip the updated rows and migrate any pending rows at startup.
*
* @throws Exception
*/
@Test
public void testMasterCrashDuringMetaMigration() throws Exception {
final byte[] FAMILY = Bytes.toBytes("family");
HTableDescriptor htd = new HTableDescriptor("testMasterCrashDuringMetaMigration");
HColumnDescriptor hcd = new HColumnDescriptor(FAMILY);
htd.addFamily(hcd);
Configuration conf = TEST_UTIL.getConfiguration();
// Create 10 New regions.
createMultiRegionsWithPBSerialization(conf, htd.getName(), 10);
// Create 10 Legacy regions.
createMultiRegionsWithWritableSerialization(conf, htd.getName(), 10);
CatalogTracker ct = TEST_UTIL.getMiniHBaseCluster().getMaster().getCatalogTracker();
// Erase the current version of root meta for this test.
undoVersionInRoot(ct);
MetaReader.fullScanMetaAndPrint(ct);
LOG.info("Meta Print completed.testUpdatesOnMetaWithLegacyHRI");
long numMigratedRows =
MetaMigrationConvertingToPB.updateMetaIfNecessary(TEST_UTIL.getHBaseCluster().getMaster());
assertEquals(numMigratedRows, 10);
// Assert that the flag in ROOT is updated to reflect the correct status
boolean metaUpdated =
MetaMigrationConvertingToPB.isMetaTableUpdated(
TEST_UTIL.getMiniHBaseCluster().getMaster().getCatalogTracker());
assertEquals(true, metaUpdated);
verifyMetaRowsAreUpdated(ct);
LOG.info("END testMasterCrashDuringMetaMigration");
}
/**
* Deletes the tables given tables.
*
* @param config cluster configuration
* @param vertexDataTableName vertex data table name
* @param edgeDataTableName edge data table name
* @param graphDataTableName graph data table name
* @throws IOException
*/
private static void deleteTablesIfExists(
final Configuration config,
final String vertexDataTableName,
final String edgeDataTableName,
final String graphDataTableName)
throws IOException {
HTableDescriptor vertexDataTableDescriptor =
new HTableDescriptor(TableName.valueOf(vertexDataTableName));
HTableDescriptor edgeDataTableDescriptor =
new HTableDescriptor(TableName.valueOf(edgeDataTableName));
HTableDescriptor graphsTableDescriptor =
new HTableDescriptor(TableName.valueOf(graphDataTableName));
HBaseAdmin admin = new HBaseAdmin(config);
if (admin.tableExists(vertexDataTableDescriptor.getName())) {
deleteTable(admin, vertexDataTableDescriptor);
}
if (admin.tableExists(edgeDataTableDescriptor.getName())) {
deleteTable(admin, edgeDataTableDescriptor);
}
if (admin.tableExists(graphsTableDescriptor.getName())) {
deleteTable(admin, graphsTableDescriptor);
}
admin.close();
}
@Override
public void add(HTableDescriptor htd) throws IOException {
if (Bytes.equals(HConstants.ROOT_TABLE_NAME, htd.getName())) {
throw new NotImplementedException();
}
if (Bytes.equals(HConstants.META_TABLE_NAME, htd.getName())) {
throw new NotImplementedException();
}
if (HConstants.HBASE_NON_USER_TABLE_DIRS.contains(htd.getNameAsString())) {
throw new NotImplementedException();
}
if (!this.fsreadonly) updateHTableDescriptor(this.fs, this.rootdir, htd);
long modtime = getTableInfoModtime(this.fs, this.rootdir, htd.getNameAsString());
this.cache.put(htd.getNameAsString(), new TableDescriptorModtime(modtime, htd));
}
@Test
public void testMetaMigration() throws Exception {
LOG.info("Starting testMetaMigration");
final byte[] FAMILY = Bytes.toBytes("family");
HTableDescriptor htd = new HTableDescriptor("testMetaMigration");
HColumnDescriptor hcd = new HColumnDescriptor(FAMILY);
htd.addFamily(hcd);
Configuration conf = TEST_UTIL.getConfiguration();
byte[][] regionNames =
new byte[][] {
HConstants.EMPTY_START_ROW, Bytes.toBytes("region_a"), Bytes.toBytes("region_b")
};
createMultiRegionsWithWritableSerialization(conf, htd.getName(), regionNames);
CatalogTracker ct = TEST_UTIL.getMiniHBaseCluster().getMaster().getCatalogTracker();
// Erase the current version of root meta for this test.
undoVersionInRoot(ct);
MetaReader.fullScanMetaAndPrint(ct);
LOG.info("Meta Print completed.testMetaMigration");
long numMigratedRows =
MetaMigrationConvertingToPB.updateMeta(TEST_UTIL.getHBaseCluster().getMaster());
MetaReader.fullScanMetaAndPrint(ct);
// Should be one entry only and it should be for the table we just added.
assertEquals(regionNames.length, numMigratedRows);
// Assert that the flag in ROOT is updated to reflect the correct status
boolean metaUpdated =
MetaMigrationConvertingToPB.isMetaTableUpdated(
TEST_UTIL.getMiniHBaseCluster().getMaster().getCatalogTracker());
assertEquals(true, metaUpdated);
verifyMetaRowsAreUpdated(ct);
}
/**
* Create a new {@link HRegionInfo} from the snapshot region info. Keep the same startKey, endKey,
* regionId and split information but change the table name.
*
* @param snapshotRegionInfo Info for region to clone.
* @return the new HRegion instance
*/
public HRegionInfo cloneRegionInfo(final HRegionInfo snapshotRegionInfo) {
return new HRegionInfo(
tableDesc.getName(),
snapshotRegionInfo.getStartKey(),
snapshotRegionInfo.getEndKey(),
snapshotRegionInfo.isSplit(),
snapshotRegionInfo.getRegionId());
}
/**
* Update table descriptor
*
* @param fs
* @param conf
* @param hTableDescriptor
* @return New tableinfo or null if we failed update.
* @throws IOException Thrown if failed update.
*/
static Path updateHTableDescriptor(FileSystem fs, Path rootdir, HTableDescriptor hTableDescriptor)
throws IOException {
Path tableDir = FSUtils.getTablePath(rootdir, hTableDescriptor.getName());
Path p = writeTableDescriptor(fs, hTableDescriptor, tableDir, getTableInfoPath(fs, tableDir));
if (p == null) throw new IOException("Failed update");
LOG.info("Updated tableinfo=" + p);
return p;
}
@Override
public void setUp() throws Exception {
// setup config values necessary for store
this.conf = TEST_UTIL.getConfiguration();
this.conf.setLong(HConstants.MAJOR_COMPACTION_PERIOD, 0);
this.conf.setInt("hbase.hstore.compaction.min", minFiles);
this.conf.setInt("hbase.hstore.compaction.max", maxFiles);
this.conf.setLong(HConstants.HREGION_MEMSTORE_FLUSH_SIZE, minSize);
this.conf.setLong("hbase.hstore.compaction.max.size", maxSize);
this.conf.setFloat("hbase.hstore.compaction.ratio", 1.0F);
// Setting up a Store
Path basedir = new Path(DIR);
String logName = "logs";
Path logdir = new Path(DIR, logName);
Path oldLogDir = new Path(basedir, HConstants.HREGION_OLDLOGDIR_NAME);
HColumnDescriptor hcd = new HColumnDescriptor(Bytes.toBytes("family"));
FileSystem fs = FileSystem.get(conf);
fs.delete(logdir, true);
HTableDescriptor htd = new HTableDescriptor(Bytes.toBytes("table"));
htd.addFamily(hcd);
HRegionInfo info = new HRegionInfo(htd.getName(), null, null, false);
hlog = HLogFactory.createHLog(fs, basedir, logName, conf);
region = HRegion.createHRegion(info, basedir, conf, htd);
HRegion.closeHRegion(region);
Path tableDir = new Path(basedir, Bytes.toString(htd.getName()));
region = new HRegion(tableDir, hlog, fs, conf, info, htd, null);
store = new HStore(basedir, region, hcd, fs, conf);
manager = store.compactionPolicy;
TEST_FILE = StoreFile.getRandomFilename(fs, store.getHomedir());
fs.create(TEST_FILE);
}
private void initHRegion(
byte[] tableName, String callingMethod, Configuration conf, byte[]... families)
throws IOException {
HTableDescriptor htd = new HTableDescriptor(tableName);
for (byte[] family : families) {
htd.addFamily(new HColumnDescriptor(family));
}
HRegionInfo info = new HRegionInfo(htd.getName(), null, null, false);
Path path = new Path(DIR + callingMethod);
if (fs.exists(path)) {
if (!fs.delete(path, true)) {
throw new IOException("Failed delete of " + path);
}
}
region = HRegion.createHRegion(info, path, conf, htd);
}
@Test
public void testCreateAndUpdate() throws IOException {
Path testdir = UTIL.getDataTestDir("testCreateAndUpdate");
HTableDescriptor htd = new HTableDescriptor("testCreate");
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
assertTrue(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
assertFalse(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
FileStatus[] statuses = fs.listStatus(testdir);
assertTrue("statuses.length=" + statuses.length, statuses.length == 1);
for (int i = 0; i < 10; i++) {
FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
}
statuses = fs.listStatus(testdir);
assertTrue(statuses.length == 1);
Path tmpTableDir = new Path(FSUtils.getTablePath(testdir, htd.getName()), ".tmp");
statuses = fs.listStatus(tmpTableDir);
assertTrue(statuses.length == 0);
}
/**
* Callers must afterward call {@link HRegion#closeHRegion(HRegion)}
*
* @param tableName
* @param callingMethod
* @param conf
* @param families
* @throws IOException
* @return created and initialized region.
*/
private HRegion initHRegion(
byte[] tableName, String callingMethod, HBaseConfiguration conf, String family)
throws IOException {
HTableDescriptor htd = new HTableDescriptor(tableName);
HColumnDescriptor familyDesc;
for (int i = 0; i < BLOOM_TYPE.length; i++) {
BloomType bloomType = BLOOM_TYPE[i];
familyDesc =
new HColumnDescriptor(family + "_" + bloomType)
.setBlocksize(1)
.setBloomFilterType(BLOOM_TYPE[i]);
htd.addFamily(familyDesc);
}
HRegionInfo info = new HRegionInfo(htd.getName(), null, null, false);
Path path = new Path(DIR + callingMethod);
HRegion r = HRegion.createHRegion(info, path, conf, htd);
blockCache = new CacheConfig(conf).getBlockCache();
return r;
}
// Initialize and set up tables
public static void initialize() throws Exception {
setupLog4j();
Configuration config = HBaseConfiguration.create();
HTableDescriptor desc = new HTableDescriptor(TABLE_NAME);
desc.addFamily(new HColumnDescriptor(FAMILY));
admin = new HBaseAdmin(config);
try {
System.out.println("Creating the table " + TABLE_NAME);
admin.createTable(desc);
} catch (TableExistsException e) {
System.out.println("Table " + TABLE_NAME + " already exists");
}
table = new TransactionalTable(config, desc.getName());
try {
transactionManager = new TransactionManager(config);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Deletes a HBase table.
*
* @param admin HBase admin
* @param tableDescriptor descriptor for the table to delete
* @throws IOException
*/
private static void deleteTable(final HBaseAdmin admin, final HTableDescriptor tableDescriptor)
throws IOException {
LOG.info("deleting table: " + tableDescriptor.getNameAsString());
admin.disableTable(tableDescriptor.getName());
admin.deleteTable(tableDescriptor.getName());
}
@After
public void tearDown() throws Exception {
for (HTableDescriptor htd : this.admin.listTables()) {
TEST_UTIL.deleteTable(htd.getName());
}
}