/**
* Licensed to Cloudera, Inc. under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Cloudera, Inc. 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 com.cloudera.flume.handlers.debug;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.junit.Ignore;
import org.junit.Test;
import com.cloudera.flume.conf.Context;
import com.cloudera.flume.conf.FlumeBuilder;
import com.cloudera.flume.conf.FlumeSpecException;
import com.cloudera.flume.conf.ReportTestingContext;
import com.cloudera.flume.conf.SinkFactory.SinkDecoBuilder;
import com.cloudera.flume.core.Attributes;
import com.cloudera.flume.core.EventImpl;
import com.cloudera.flume.core.EventSink;
import com.cloudera.flume.core.EventSinkDecorator;
import com.cloudera.flume.core.EventSource;
import com.cloudera.flume.core.EventUtil;
import com.cloudera.flume.handlers.debug.BloomCheckDecorator.BloomCheckState;
import com.cloudera.flume.reporter.ReportEvent;
import com.cloudera.flume.reporter.ReportManager;
import com.cloudera.flume.reporter.aggregator.CounterSink;
import com.cloudera.util.bloom.BloomSet;
/**
* These test the bloom set injector and bloom set checker decorators.
*
* These are generally done on the order of 100M messages -- which is the size
* of the current scaling test framework. This is cpu intensive and probably
* should not be used in production, until its performance characteristics are
* better understood.
*
*/
public class TestBloomSetDecos {
@Test
public void testBloomSetCompare() {
BloomSet b1 = new BloomSet(10000, 5);
BloomSet b2 = new BloomSet(10000, 5);
for (int i = 0; i < 10; i++) {
b1.addInt(i);
if (i % 2 == 0)
b2.addInt(i);
}
assertEquals(b1, b1);
assertEquals(b2, b2);
assertTrue(b1.contains(b2));
assertFalse(b2.contains(b1));
}
/**
* The parameters of the bloom filters are different so this should always
* reject.
*/
@Test(expected = IllegalArgumentException.class)
public void testBloomBadSizes() {
BloomSet b1 = new BloomSet(10000, 5);
BloomSet b2 = new BloomSet(10000, 6);
for (int i = 0; i < 10; i++) {
b1.addInt(i);
b2.addInt(i);
}
assertFalse(b1.contains(b2));
assertFalse(b2.contains(b1));
}
/**
* Test it with larger number of events and larger number of slots. This
* function may be fragile -- while this should always pass it doesn't reveal
* what the false positive rate is.
*/
@Test
@Ignore("Takes too long to run")
public void testBloomSetCompare100M() {
// generally we want about 9-10 bits per entry.
BloomSet b1 = new BloomSet(1000000000, 2); // 1B bits ~= 125MB
BloomSet b2 = new BloomSet(1000000000, 2);
// int drop = 543215432; // drop this one..
// int drop = 543215431; // drop this one..
int drop = 54323423;
for (int i = 0; i < 100000000; i++) { // 100M "entries"
b1.addInt(i);
if (i != drop)
// oops, we dropped one.
b2.addInt(i);
}
assertTrue(b1.contains(b2));
assertFalse(b2.contains(b1));
}
/** Test it with larger number of events and larger number of slots. */
@Test
@Ignore("Takes too long to run")
public void testBloomSetCompare100Mx10M() {
// generally we want about 9-10 bits per entry.
BloomSet b1 = new BloomSet(1000000000, 2); // 1B bits ~= 125MB
BloomSet b2 = new BloomSet(1000000000, 2);
for (int i = 0; i < 100000000; i++) { // 100M "entries"
if (i != 234000)
b1.addInt(i); // drop one that is included in the other set.
if (i <= 10000000)
b2.addInt(i);
// only add the first 10M to the second hash
}
assertFalse(b1.contains(b2)); // b1 doesn't have all b2 has!
assertFalse(b2.contains(b1));
}
@Test
public void testBloomGenBuilders() {
SinkDecoBuilder b = BloomGeneratorDeco.builder();
Context ctx = new Context();
b.build(ctx, "2234", "123");
b.build(ctx, "1234");
b.build(ctx);
}
@Test(expected = IllegalArgumentException.class)
public void testBloomGenBuilderFail() {
SinkDecoBuilder b = BloomGeneratorDeco.builder();
b.build(new Context(), "2234", "123", "r3414");
}
@Test(expected = IllegalArgumentException.class)
public void testBloomGenBuilderFail2() {
SinkDecoBuilder b = BloomGeneratorDeco.builder();
b.build(new Context(), "r3414");
}
@Test
public void testBloomCheckBuilders() {
SinkDecoBuilder b = BloomGeneratorDeco.builder();
Context ctx = new Context();
b.build(ctx, "2234", "123");
b.build(ctx, "1234");
b.build(ctx);
}
@Test(expected = IllegalArgumentException.class)
public void testBloomCheckBuilderFail() {
SinkDecoBuilder b = BloomGeneratorDeco.builder();
b.build(new Context(), "2234", "123", "r3414");
}
@Test(expected = IllegalArgumentException.class)
public void testBloomCheckBuilderFail2() {
SinkDecoBuilder b = BloomGeneratorDeco.builder();
b.build(new Context(), "r3414");
}
@Test
public void testBuildWithRptSink() throws FlumeSpecException {
String spec = "{bloomCheck(1,2, \"text(\\\"test\\\")\") => null } ";
FlumeBuilder.buildSink(new Context(), spec);
}
/**
* Instantiate decos, run them and check their reports.
*/
@SuppressWarnings("unchecked")
@Test
public void testBloomDecos() throws FlumeSpecException, IOException {
String spec = "{ bloomGen(10000,2) => { bloomCheck(10000,2) => counter(\"test\")} } ";
EventSink snk = FlumeBuilder.buildSink(new ReportTestingContext(), spec);
EventSource src = FlumeBuilder.buildSource("asciisynth(10000)");
snk.open();
src.open();
EventUtil.dumpAll(src, snk);
src.close();
snk.close();
CounterSink ctr = (CounterSink) ReportManager.get().getReportable("test");
assertEquals(ctr.getCount(), 10000);
// Hack until we get a better mechanism:
BloomCheckDecorator bcd = (BloomCheckDecorator) (((EventSinkDecorator<EventSink>) snk)
.getSink());
ReportEvent r = bcd.getReport();
assertEquals(BloomCheckState.SUCCESS.toString(), new String(r
.get(BloomCheckDecorator.A_STATE)));
assertEquals(1, Attributes.readInt(r, BloomCheckDecorator.A_SUCCESS)
.intValue());
assertEquals(0, Attributes.readInt(r, BloomCheckDecorator.A_FAILS)
.intValue());
}
/**
* Tests to make sure the report sink receives data.
*/
@Test
public void testBloomReportSink() throws FlumeSpecException, IOException {
String spec = "{bloomGen(100,2) => {bloomCheck(100,2,\"counter(\\\"test\\\") \") => counter(\"total\") } } }";
EventSink snk = FlumeBuilder.buildSink(new ReportTestingContext(), spec);
snk.open();
snk.append(new EventImpl(new byte[0]));
snk.append(new EventImpl(new byte[0]));
CounterSink ctr = (CounterSink) ReportManager.get().getReportable("test");
assertEquals(0, ctr.getCount());
CounterSink total = (CounterSink) ReportManager.get()
.getReportable("total");
assertEquals(2, total.getCount());
snk.close(); // will trigger a bloom report.
assertEquals(1, ctr.getCount());
}
}