/**
* Set the table's replication switch if the table's replication switch is already not set.
*
* @param tableName name of the table
* @param isRepEnabled is replication switch enable or disable
* @throws IOException if a remote or network exception occurs
*/
private void setTableRep(final TableName tableName, boolean isRepEnabled) throws IOException {
Admin admin = null;
try {
admin = this.connection.getAdmin();
HTableDescriptor htd = admin.getTableDescriptor(tableName);
if (isTableRepEnabled(htd) ^ isRepEnabled) {
boolean isOnlineSchemaUpdateEnabled =
this.connection
.getConfiguration()
.getBoolean("hbase.online.schema.update.enable", true);
if (!isOnlineSchemaUpdateEnabled) {
admin.disableTable(tableName);
}
for (HColumnDescriptor hcd : htd.getFamilies()) {
hcd.setScope(
isRepEnabled
? HConstants.REPLICATION_SCOPE_GLOBAL
: HConstants.REPLICATION_SCOPE_LOCAL);
}
admin.modifyTable(tableName, htd);
if (!isOnlineSchemaUpdateEnabled) {
admin.enableTable(tableName);
}
}
} finally {
if (admin != null) {
try {
admin.close();
} catch (IOException e) {
LOG.warn("Failed to close admin connection.");
LOG.debug("Details on failure to close admin connection.", e);
}
}
}
}
@Override
void perform() throws IOException {
HTableDescriptor selected = selectTable(disabledTables);
if (selected == null) {
return;
}
Admin admin = connection.getAdmin();
try {
TableName tableName = selected.getTableName();
LOG.info("Enabling table :" + selected);
admin.enableTable(tableName);
Assert.assertTrue(
"Table: " + selected + " was not enabled", admin.isTableEnabled(tableName));
HTableDescriptor freshTableDesc = admin.getTableDescriptor(tableName);
enabledTables.put(tableName, freshTableDesc);
LOG.info("Enabled table :" + freshTableDesc);
} catch (Exception e) {
LOG.warn("Caught exception in action: " + this.getClass());
// TODO workaround
// loose restriction for TableNotDisabledException/TableNotEnabledException thrown in sync
// operations 1) when enable/disable starts, the table state is changed to
// ENABLING/DISABLING (ZK node in 1.x), which will be further changed to ENABLED/DISABLED
// once the operation completes 2) if master failover happens in the middle of the
// enable/disable operation, the new master will try to recover the tables in
// ENABLING/DISABLING state, as programmed in
// AssignmentManager#recoverTableInEnablingState() and
// AssignmentManager#recoverTableInDisablingState()
// 3) after the new master initialization completes, the procedure tries to re-do the
// enable/disable operation, which was already done. Ignore those exceptions before
// change of behaviors of AssignmentManager in presence of PV2
if (e instanceof TableNotDisabledException) {
LOG.warn("Caught TableNotDisabledException in action: " + this.getClass());
e.printStackTrace();
} else {
throw e;
}
} finally {
admin.close();
}
verifyTables();
}
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();
}
}
private void doIncrementalLoadTest(boolean shouldChangeRegions) throws Exception {
util = new HBaseTestingUtility();
Configuration conf = util.getConfiguration();
byte[][] splitKeys = generateRandomSplitKeys(4);
util.startMiniCluster();
try {
HTable table = util.createTable(TABLE_NAME, FAMILIES, splitKeys);
Admin admin = table.getConnection().getAdmin();
Path testDir = util.getDataTestDirOnTestFS("testLocalMRIncrementalLoad");
assertEquals("Should start with empty table", 0, util.countRows(table));
int numRegions = -1;
try (RegionLocator r = table.getRegionLocator()) {
numRegions = r.getStartKeys().length;
}
assertEquals("Should make 5 regions", numRegions, 5);
// Generate the bulk load files
util.startMiniMapReduceCluster();
runIncrementalPELoad(conf, table.getTableDescriptor(), table.getRegionLocator(), 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 (table.getRegionLocator().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, table);
// 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);
// 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 {
util.shutdownMiniMapReduceCluster();
util.shutdownMiniCluster();
}
}