private void runTestOnTable(Table table)
throws IOException, InterruptedException, ClassNotFoundException {
Job job = null;
try {
LOG.info("Before map/reduce startup");
job = new Job(table.getConfiguration(), "process column contents");
job.setNumReduceTasks(1);
Scan scan = new Scan();
scan.addFamily(INPUT_FAMILY);
TableMapReduceUtil.initTableMapperJob(
table.getName(),
scan,
MultithreadedTableMapper.class,
ImmutableBytesWritable.class,
Put.class,
job);
MultithreadedTableMapper.setMapperClass(job, ProcessContentsMapper.class);
MultithreadedTableMapper.setNumberOfThreads(job, NUMBER_OF_THREADS);
TableMapReduceUtil.initTableReducerJob(
table.getName().getNameAsString(), IdentityTableReducer.class, job);
FileOutputFormat.setOutputPath(job, new Path("test"));
LOG.info("Started " + table.getName());
assertTrue(job.waitForCompletion(true));
LOG.info("After map/reduce completion");
// verify map-reduce results
verify(table.getName());
} finally {
table.close();
if (job != null) {
FileUtil.fullyDelete(new File(job.getConfiguration().get("hadoop.tmp.dir")));
}
}
}
public Map<String, Long> getRegionSizes(String tableName) {
Map<String, Long> regions = new HashMap<>();
try {
final Table table = connection.getTable(TableName.valueOf(tableName));
RegionLocator regionLocator = connection.getRegionLocator(table.getName());
List<HRegionLocation> tableRegionInfos = regionLocator.getAllRegionLocations();
Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
for (HRegionLocation regionInfo : tableRegionInfos) {
tableRegions.add(regionInfo.getRegionInfo().getRegionName());
}
ClusterStatus clusterStatus = connection.getAdmin().getClusterStatus();
Collection<ServerName> servers = clusterStatus.getServers();
final long megaByte = 1024L * 1024L;
for (ServerName serverName : servers) {
ServerLoad serverLoad = clusterStatus.getLoad(serverName);
for (RegionLoad regionLoad : serverLoad.getRegionsLoad().values()) {
byte[] regionId = regionLoad.getName();
if (tableRegions.contains(regionId)) {
long regionSizeBytes = regionLoad.getStorefileSizeMB() * megaByte;
regions.put(regionLoad.getNameAsString(), regionSizeBytes);
}
}
}
} catch (IOException e) {
e.printStackTrace();
}
return regions;
}
@Override
protected void closeHTable() {
if (table != null) {
try {
table.close();
} catch (Exception e) {
LOG.error("Error in closing the table " + table.getName(), e);
}
}
}
protected HRegionInfo createRegion(
Configuration conf, final Table htbl, byte[] startKey, byte[] endKey) throws IOException {
Table meta = TEST_UTIL.getConnection().getTable(TableName.META_TABLE_NAME);
HTableDescriptor htd = htbl.getTableDescriptor();
HRegionInfo hri = new HRegionInfo(htbl.getName(), startKey, endKey);
LOG.info("manually adding regioninfo and hdfs data: " + hri.toString());
Path rootDir = FSUtils.getRootDir(conf);
FileSystem fs = rootDir.getFileSystem(conf);
Path p = new Path(FSUtils.getTableDir(rootDir, htbl.getName()), hri.getEncodedName());
fs.mkdirs(p);
Path riPath = new Path(p, HRegionFileSystem.REGION_INFO_FILE);
FSDataOutputStream out = fs.create(riPath);
out.write(hri.toDelimitedByteArray());
out.close();
// add to meta.
MetaTableAccessor.addRegionToMeta(meta, hri);
meta.close();
return hri;
}
protected void deleteRegion(Configuration conf, final Table tbl, byte[] startKey, byte[] endKey)
throws IOException {
LOG.info("Before delete:");
HTableDescriptor htd = tbl.getTableDescriptor();
dumpMeta(htd);
List<HRegionLocation> regions;
try (RegionLocator rl = connection.getRegionLocator(tbl.getName())) {
regions = rl.getAllRegionLocations();
}
for (HRegionLocation e : regions) {
HRegionInfo hri = e.getRegionInfo();
ServerName hsa = e.getServerName();
if (Bytes.compareTo(hri.getStartKey(), startKey) == 0
&& Bytes.compareTo(hri.getEndKey(), endKey) == 0) {
LOG.info("RegionName: " + hri.getRegionNameAsString());
byte[] deleteRow = hri.getRegionName();
TEST_UTIL.getHBaseAdmin().unassign(deleteRow, true);
LOG.info("deleting hdfs data: " + hri.toString() + hsa.toString());
Path rootDir = FSUtils.getRootDir(conf);
FileSystem fs = rootDir.getFileSystem(conf);
Path p = new Path(FSUtils.getTableDir(rootDir, htd.getTableName()), hri.getEncodedName());
fs.delete(p, true);
try (Table meta = this.connection.getTable(TableName.META_TABLE_NAME)) {
Delete delete = new Delete(deleteRow);
meta.delete(delete);
}
}
LOG.info(hri.toString() + hsa.toString());
}
TEST_UTIL.getMetaTableRows(htd.getTableName());
LOG.info("After delete:");
dumpMeta(htd);
}
private void doIncrementalLoadTest(boolean shouldChangeRegions, boolean shouldKeepLocality)
throws Exception {
util = new HBaseTestingUtility();
Configuration conf = util.getConfiguration();
conf.setBoolean(HFileOutputFormat2.LOCALITY_SENSITIVE_CONF_KEY, shouldKeepLocality);
int hostCount = 1;
int regionNum = 5;
if (shouldKeepLocality) {
// We should change host count higher than hdfs replica count when MiniHBaseCluster supports
// explicit hostnames parameter just like MiniDFSCluster does.
hostCount = 3;
regionNum = 20;
}
byte[][] splitKeys = generateRandomSplitKeys(regionNum - 1);
String[] hostnames = new String[hostCount];
for (int i = 0; i < hostCount; ++i) {
hostnames[i] = "datanode_" + i;
}
util.startMiniCluster(1, hostCount, hostnames);
Table table = util.createTable(TABLE_NAME, FAMILIES, splitKeys);
Path testDir = util.getDataTestDirOnTestFS("testLocalMRIncrementalLoad");
try (RegionLocator r = util.getConnection().getRegionLocator(TABLE_NAME);
Admin admin = util.getConnection().getAdmin(); ) {
assertEquals("Should start with empty table", 0, util.countRows(table));
int numRegions = r.getStartKeys().length;
assertEquals("Should make " + regionNum + " regions", numRegions, regionNum);
// Generate the bulk load files
runIncrementalPELoad(conf, table.getTableDescriptor(), r, testDir);
// This doesn't write into the table, just makes files
assertEquals("HFOF should not touch actual table", 0, util.countRows(table));
// Make sure that a directory was created for every CF
int dir = 0;
for (FileStatus f : testDir.getFileSystem(conf).listStatus(testDir)) {
for (byte[] family : FAMILIES) {
if (Bytes.toString(family).equals(f.getPath().getName())) {
++dir;
}
}
}
assertEquals("Column family not found in FS.", FAMILIES.length, dir);
// handle the split case
if (shouldChangeRegions) {
LOG.info("Changing regions in table");
admin.disableTable(table.getName());
while (util.getMiniHBaseCluster()
.getMaster()
.getAssignmentManager()
.getRegionStates()
.isRegionsInTransition()) {
Threads.sleep(200);
LOG.info("Waiting on table to finish disabling");
}
util.deleteTable(table.getName());
byte[][] newSplitKeys = generateRandomSplitKeys(14);
table = util.createTable(TABLE_NAME, FAMILIES, newSplitKeys);
while (util.getConnection().getRegionLocator(TABLE_NAME).getAllRegionLocations().size()
!= 15
|| !admin.isTableAvailable(table.getName())) {
Thread.sleep(200);
LOG.info("Waiting for new region assignment to happen");
}
}
// Perform the actual load
new LoadIncrementalHFiles(conf).doBulkLoad(testDir, admin, table, r);
// Ensure data shows up
int expectedRows = NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
assertEquals(
"LoadIncrementalHFiles should put expected data in table",
expectedRows,
util.countRows(table));
Scan scan = new Scan();
ResultScanner results = table.getScanner(scan);
for (Result res : results) {
assertEquals(FAMILIES.length, res.rawCells().length);
Cell first = res.rawCells()[0];
for (Cell kv : res.rawCells()) {
assertTrue(CellUtil.matchingRow(first, kv));
assertTrue(Bytes.equals(CellUtil.cloneValue(first), CellUtil.cloneValue(kv)));
}
}
results.close();
String tableDigestBefore = util.checksumRows(table);
// Check region locality
HDFSBlocksDistribution hbd = new HDFSBlocksDistribution();
for (HRegion region : util.getHBaseCluster().getRegions(TABLE_NAME)) {
hbd.add(region.getHDFSBlocksDistribution());
}
for (String hostname : hostnames) {
float locality = hbd.getBlockLocalityIndex(hostname);
LOG.info("locality of [" + hostname + "]: " + locality);
assertEquals(100, (int) (locality * 100));
}
// Cause regions to reopen
admin.disableTable(TABLE_NAME);
while (!admin.isTableDisabled(TABLE_NAME)) {
Thread.sleep(200);
LOG.info("Waiting for table to disable");
}
admin.enableTable(TABLE_NAME);
util.waitTableAvailable(TABLE_NAME);
assertEquals(
"Data should remain after reopening of regions",
tableDigestBefore,
util.checksumRows(table));
} finally {
testDir.getFileSystem(conf).delete(testDir, true);
util.deleteTable(TABLE_NAME);
util.shutdownMiniCluster();
}
}
public void doTest(Class<?> regionClass, boolean distributedLogReplay) throws Exception {
Configuration c = TEST_UTIL.getConfiguration();
c.setBoolean(HConstants.DISTRIBUTED_LOG_REPLAY_KEY, distributedLogReplay);
// Insert our custom region
c.setClass(HConstants.REGION_IMPL, regionClass, HRegion.class);
c.setBoolean("dfs.support.append", true);
// Encourage plenty of flushes
c.setLong("hbase.hregion.memstore.flush.size", 200000);
c.set(HConstants.HBASE_REGION_SPLIT_POLICY_KEY, ConstantSizeRegionSplitPolicy.class.getName());
// Only run compaction when we tell it to
c.setInt("hbase.hstore.compactionThreshold", 1000);
c.setLong("hbase.hstore.blockingStoreFiles", 1000);
// Compact quickly after we tell it to!
c.setInt("hbase.regionserver.thread.splitcompactcheckfrequency", 1000);
LOG.info("Starting mini cluster");
TEST_UTIL.startMiniCluster(1);
CompactionBlockerRegion compactingRegion = null;
Admin admin = null;
try {
LOG.info("Creating admin");
admin = TEST_UTIL.getConnection().getAdmin();
LOG.info("Creating table");
TEST_UTIL.createTable(TABLE_NAME, FAMILY);
Table table = TEST_UTIL.getConnection().getTable(TABLE_NAME);
LOG.info("Loading test table");
// Find the region
List<HRegion> testRegions = TEST_UTIL.getMiniHBaseCluster().findRegionsForTable(TABLE_NAME);
assertEquals(1, testRegions.size());
compactingRegion = (CompactionBlockerRegion) testRegions.get(0);
LOG.info("Blocking compactions");
compactingRegion.stopCompactions();
long lastFlushTime = compactingRegion.getLastFlushTime();
// Load some rows
TEST_UTIL.loadNumericRows(table, FAMILY, 0, FIRST_BATCH_COUNT);
// add a compaction from an older (non-existing) region to see whether we successfully skip
// those entries
HRegionInfo oldHri =
new HRegionInfo(table.getName(), HConstants.EMPTY_START_ROW, HConstants.EMPTY_END_ROW);
CompactionDescriptor compactionDescriptor =
ProtobufUtil.toCompactionDescriptor(
oldHri,
FAMILY,
Lists.newArrayList(new Path("/a")),
Lists.newArrayList(new Path("/b")),
new Path("store_dir"));
WALUtil.writeCompactionMarker(
compactingRegion.getWAL(),
table.getTableDescriptor(),
oldHri,
compactionDescriptor,
new AtomicLong(Long.MAX_VALUE - 100));
// Wait till flush has happened, otherwise there won't be multiple store files
long startWaitTime = System.currentTimeMillis();
while (compactingRegion.getLastFlushTime() <= lastFlushTime
|| compactingRegion.countStoreFiles() <= 1) {
LOG.info("Waiting for the region to flush " + compactingRegion.getRegionNameAsString());
Thread.sleep(1000);
assertTrue(
"Timed out waiting for the region to flush",
System.currentTimeMillis() - startWaitTime < 30000);
}
assertTrue(compactingRegion.countStoreFiles() > 1);
final byte REGION_NAME[] = compactingRegion.getRegionName();
LOG.info("Asking for compaction");
((HBaseAdmin) admin).majorCompact(TABLE_NAME.getName());
LOG.info("Waiting for compaction to be about to start");
compactingRegion.waitForCompactionToBlock();
LOG.info("Starting a new server");
RegionServerThread newServerThread = TEST_UTIL.getMiniHBaseCluster().startRegionServer();
final HRegionServer newServer = newServerThread.getRegionServer();
LOG.info("Killing region server ZK lease");
TEST_UTIL.expireRegionServerSession(0);
CompactionBlockerRegion newRegion = null;
startWaitTime = System.currentTimeMillis();
LOG.info("Waiting for the new server to pick up the region " + Bytes.toString(REGION_NAME));
// wait for region to be assigned and to go out of log replay if applicable
Waiter.waitFor(
c,
60000,
new Waiter.Predicate<Exception>() {
@Override
public boolean evaluate() throws Exception {
HRegion newRegion = newServer.getOnlineRegion(REGION_NAME);
return newRegion != null && !newRegion.isRecovering();
}
});
newRegion = (CompactionBlockerRegion) newServer.getOnlineRegion(REGION_NAME);
LOG.info("Allowing compaction to proceed");
compactingRegion.allowCompactions();
while (compactingRegion.compactCount == 0) {
Thread.sleep(1000);
}
// The server we killed stays up until the compaction that was started before it was killed
// completes. In logs
// you should see the old regionserver now going down.
LOG.info("Compaction finished");
// After compaction of old region finishes on the server that was going down, make sure that
// all the files we expect are still working when region is up in new location.
FileSystem fs = newRegion.getFilesystem();
for (String f : newRegion.getStoreFileList(new byte[][] {FAMILY})) {
assertTrue("After compaction, does not exist: " + f, fs.exists(new Path(f)));
}
// If we survive the split keep going...
// Now we make sure that the region isn't totally confused. Load up more rows.
TEST_UTIL.loadNumericRows(
table, FAMILY, FIRST_BATCH_COUNT, FIRST_BATCH_COUNT + SECOND_BATCH_COUNT);
((HBaseAdmin) admin).majorCompact(TABLE_NAME.getName());
startWaitTime = System.currentTimeMillis();
while (newRegion.compactCount == 0) {
Thread.sleep(1000);
assertTrue(
"New region never compacted", System.currentTimeMillis() - startWaitTime < 180000);
}
assertEquals(FIRST_BATCH_COUNT + SECOND_BATCH_COUNT, TEST_UTIL.countRows(table));
} finally {
if (compactingRegion != null) {
compactingRegion.allowCompactions();
}
admin.close();
TEST_UTIL.shutdownMiniCluster();
}
}
