/**
* 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.hadoop.hbase.client;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HRegionLocation;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category({ MediumTests.class, ClientTests.class })
public class TestAsyncSingleRequestRpcRetryingCaller {
private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private static TableName TABLE_NAME = TableName.valueOf("async");
private static byte[] FAMILY = Bytes.toBytes("cf");
private static byte[] QUALIFIER = Bytes.toBytes("cq");
private static byte[] ROW = Bytes.toBytes("row");
private static byte[] VALUE = Bytes.toBytes("value");
private static AsyncConnectionImpl CONN;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
TEST_UTIL.startMiniCluster(2);
TEST_UTIL.getAdmin().setBalancerRunning(false, true);
TEST_UTIL.createTable(TABLE_NAME, FAMILY);
TEST_UTIL.waitTableAvailable(TABLE_NAME);
AsyncRegistry registry = AsyncRegistryFactory.getRegistry(TEST_UTIL.getConfiguration());
CONN = new AsyncConnectionImpl(TEST_UTIL.getConfiguration(), registry,
registry.getClusterId().get(), User.getCurrent());
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
IOUtils.closeQuietly(CONN);
TEST_UTIL.shutdownMiniCluster();
}
@Test
public void testRegionMove() throws InterruptedException, ExecutionException, IOException {
// This will leave a cached entry in location cache
HRegionLocation loc = CONN.getRegionLocator(TABLE_NAME).getRegionLocation(ROW).get();
int index = TEST_UTIL.getHBaseCluster().getServerWith(loc.getRegionInfo().getRegionName());
TEST_UTIL.getAdmin().move(loc.getRegionInfo().getEncodedNameAsBytes(), Bytes.toBytes(
TEST_UTIL.getHBaseCluster().getRegionServer(1 - index).getServerName().getServerName()));
RawAsyncTable table = CONN.getRawTableBuilder(TABLE_NAME)
.setRetryPause(100, TimeUnit.MILLISECONDS).setMaxRetries(30).build();
table.put(new Put(ROW).addColumn(FAMILY, QUALIFIER, VALUE)).get();
// move back
TEST_UTIL.getAdmin().move(loc.getRegionInfo().getEncodedNameAsBytes(),
Bytes.toBytes(loc.getServerName().getServerName()));
Result result = table.get(new Get(ROW).addColumn(FAMILY, QUALIFIER)).get();
assertArrayEquals(VALUE, result.getValue(FAMILY, QUALIFIER));
}
private <T> CompletableFuture<T> failedFuture() {
CompletableFuture<T> future = new CompletableFuture<>();
future.completeExceptionally(new RuntimeException("Inject error!"));
return future;
}
@Test
public void testMaxRetries() throws IOException, InterruptedException {
try {
CONN.callerFactory.single().table(TABLE_NAME).row(ROW).operationTimeout(1, TimeUnit.DAYS)
.maxAttempts(3).pause(10, TimeUnit.MILLISECONDS)
.action((controller, loc, stub) -> failedFuture()).call().get();
fail();
} catch (ExecutionException e) {
assertThat(e.getCause(), instanceOf(RetriesExhaustedException.class));
}
}
@Test
public void testOperationTimeout() throws IOException, InterruptedException {
long startNs = System.nanoTime();
try {
CONN.callerFactory.single().table(TABLE_NAME).row(ROW).operationTimeout(1, TimeUnit.SECONDS)
.pause(100, TimeUnit.MILLISECONDS).maxAttempts(Integer.MAX_VALUE)
.action((controller, loc, stub) -> failedFuture()).call().get();
fail();
} catch (ExecutionException e) {
e.printStackTrace();
assertThat(e.getCause(), instanceOf(RetriesExhaustedException.class));
}
long costNs = System.nanoTime() - startNs;
assertTrue(costNs >= TimeUnit.SECONDS.toNanos(1));
assertTrue(costNs < TimeUnit.SECONDS.toNanos(2));
}
@Test
public void testLocateError() throws IOException, InterruptedException, ExecutionException {
AtomicBoolean errorTriggered = new AtomicBoolean(false);
AtomicInteger count = new AtomicInteger(0);
HRegionLocation loc = CONN.getRegionLocator(TABLE_NAME).getRegionLocation(ROW).get();
AsyncRegionLocator mockedLocator =
new AsyncRegionLocator(CONN, AsyncConnectionImpl.RETRY_TIMER) {
@Override
CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,
RegionLocateType locateType, long timeoutNs) {
if (tableName.equals(TABLE_NAME)) {
CompletableFuture<HRegionLocation> future = new CompletableFuture<>();
if (count.getAndIncrement() == 0) {
errorTriggered.set(true);
future.completeExceptionally(new RuntimeException("Inject error!"));
} else {
future.complete(loc);
}
return future;
} else {
return super.getRegionLocation(tableName, row, locateType, timeoutNs);
}
}
@Override
void updateCachedLocation(HRegionLocation loc, Throwable exception) {
}
};
try (AsyncConnectionImpl mockedConn = new AsyncConnectionImpl(CONN.getConfiguration(),
CONN.registry, CONN.registry.getClusterId().get(), User.getCurrent()) {
@Override
AsyncRegionLocator getLocator() {
return mockedLocator;
}
}) {
RawAsyncTable table = mockedConn.getRawTableBuilder(TABLE_NAME)
.setRetryPause(100, TimeUnit.MILLISECONDS).setMaxRetries(5).build();
table.put(new Put(ROW).addColumn(FAMILY, QUALIFIER, VALUE)).get();
assertTrue(errorTriggered.get());
errorTriggered.set(false);
count.set(0);
Result result = table.get(new Get(ROW).addColumn(FAMILY, QUALIFIER)).get();
assertArrayEquals(VALUE, result.getValue(FAMILY, QUALIFIER));
assertTrue(errorTriggered.get());
}
}
}