| /* |
| * 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.pig.test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutput; |
| import java.io.DataOutputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.Random; |
| |
| import org.apache.pig.PigConfiguration; |
| import org.apache.pig.PigServer; |
| import org.apache.pig.data.BagFactory; |
| import org.apache.pig.data.BinInterSedes; |
| import org.apache.pig.data.DataBag; |
| import org.apache.pig.data.DataByteArray; |
| import org.apache.pig.data.InterSedes; |
| import org.apache.pig.data.InterSedesFactory; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.impl.io.BufferedPositionedInputStream; |
| import org.apache.pig.impl.io.InterRecordReader; |
| import org.apache.pig.impl.util.TupleFormat; |
| import org.junit.Test; |
| import org.mockito.internal.util.reflection.Whitebox; |
| |
| public class TestBinInterSedes { |
| private static final TupleFactory mTupleFactory = TupleFactory.getInstance(); |
| private static final BinInterSedes bis = new BinInterSedes(); |
| private static final Random random = new Random(100L); |
| |
| @Test |
| public void testTupleWriteRead1() throws IOException { |
| //create a tuple with columns of different type |
| Tuple tuplein = TupleFactory.getInstance().newTuple(7); |
| tuplein.set(0, 12); |
| Map<String, String> map = new HashMap<String, String>(); |
| map.put("pig", "scalability"); |
| tuplein.set(1, map); |
| tuplein.set(2, null); |
| tuplein.set(3, 12L); |
| tuplein.set(4, 1.2F); |
| |
| Tuple innerTuple = TupleFactory.getInstance().newTuple(1); |
| innerTuple.set(0, "innerTuple"); |
| tuplein.set(5, innerTuple); |
| DataBag bag = BagFactory.getInstance().newDefaultBag(); |
| bag.add(innerTuple); |
| tuplein.set(6, bag); |
| |
| testTupleSedes(tuplein); |
| |
| assertEquals( |
| "(12,[pig#scalability],,12,1.2,(innerTuple),{(innerTuple)})", |
| TupleFormat.format(tuplein)); |
| } |
| |
| |
| /** |
| * test sedes of int of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadIntDiffSizes() throws IOException { |
| //create a tuple with integer columns of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| tuple.append(new Integer(0)); //boolean rep |
| tuple.append(new Integer(1)); //boolean rep |
| tuple.append(new Integer(125)); //fits into byte |
| tuple.append(new Integer(1024)); //fits into short |
| tuple.append(new Integer(1024*1024*1024)); //fits into int (=~ 2 ^30) |
| |
| testTupleSedes(tuple); |
| } |
| |
| /** |
| * test sedes of bytearray, string of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadByteArrStringDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| byte [] tinyBA = new byte[10]; |
| byte [] smallBA = new byte[1000]; |
| byte [] largeBytearray = new byte[80000]; |
| //init large bytearray with non 0 values, its going to be used as |
| //string as well |
| for(int i=0; i< largeBytearray.length; i++){ |
| largeBytearray[i] = '1'; |
| } |
| tuple.append(new DataByteArray(tinyBA)); |
| tuple.append(new DataByteArray(smallBA)); |
| tuple.append(new DataByteArray(largeBytearray)); |
| |
| testTupleSedes(tuple); |
| |
| // add strings of different sizes |
| tuple = TupleFactory.getInstance().newTuple(); |
| tuple.append(new String("")); |
| tuple.append(new String("x")); |
| //string larger than 32k |
| tuple.append(new String(largeBytearray)); |
| |
| testTupleSedes(tuple); |
| } |
| |
| /** |
| * test sedes with bags of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadBagDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| DataBag tinyBag = createBag(10); |
| DataBag smallBag = createBag(1000); |
| DataBag largeBag = createBag(100*1024); |
| |
| tuple.append(tinyBag); |
| tuple.append(smallBag); |
| tuple.append(largeBag); |
| |
| testTupleSedes(tuple); |
| } |
| |
| /* |
| * test sedes of long of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadLongDiffSizes() throws IOException { |
| Random r = new Random(100L); |
| |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| |
| tuple.append(new Long(0)); |
| tuple.append(new Long(1)); |
| tuple.append(new Long(-1)); |
| tuple.append(new Long(300)); |
| tuple.append(new Long(600)); |
| tuple.append(new Long(10000)); |
| tuple.append(new Long(-10000)); |
| tuple.append(new Long(5000000000000000000L)); |
| tuple.append(new Long(-5000000000000000000L)); |
| |
| for (int i = 0; i < 100000; i++) { |
| tuple.append(new Long(r.nextLong())); |
| } |
| |
| testTupleSedes(tuple); |
| } |
| |
| /** |
| * create bag having given number of tuples |
| * @param size |
| * @return |
| */ |
| private DataBag createBag(int size) { |
| Tuple innerTuple = TupleFactory.getInstance().newTuple(); |
| innerTuple.append(Integer.valueOf(1)); |
| DataBag bag = BagFactory.getInstance().newDefaultBag(); |
| for(int i=0; i<size; i++){ |
| bag.add(innerTuple); |
| } |
| return bag; |
| } |
| |
| /** |
| * test sedes tuple of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple smallTuple = createTupleWithManyCols(1000); |
| testTupleSedes(smallTuple); |
| |
| Tuple largeTuple = createTupleWithManyCols(100*1000); |
| testTupleSedes(largeTuple); |
| } |
| |
| private Tuple createTupleWithManyCols(int size) { |
| Tuple t = TupleFactory.getInstance().newTuple(size); |
| Integer col = Integer.valueOf(1); |
| for(int i=0; i<size; i++){ |
| t.append(col); |
| } |
| return t; |
| } |
| |
| /** |
| * test sedes with maps of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadMapDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| Map<String, Object> tinyMap = createMap(10); |
| Map<String, Object> smallMap = createMap(1000); |
| Map<String, Object> largeMap = createMap(100*1024); |
| tuple.append(tinyMap); |
| tuple.append(smallMap); |
| tuple.append(largeMap); |
| |
| testTupleSedes(tuple); |
| } |
| |
| private Map<String, Object> createMap(int size) { |
| Map<String,Object> map = new HashMap<String, Object>(size); |
| String key = String.valueOf('A'); |
| Integer val = Integer.valueOf(1); |
| for(int i=0; i<size; i++){ |
| map.put(key, val); |
| } |
| return map; |
| } |
| |
| /** |
| * Write the serialized tuple to DataOutputStream and get deserialized tuple |
| * compare the given tuple and deserialized tuple to make sure they are |
| * equivalent |
| * @param tuple |
| * @throws IOException |
| */ |
| private void testTupleSedes(Tuple tuple) throws IOException { |
| |
| InterSedes sedes = InterSedesFactory.getInterSedesInstance(); |
| |
| //write the tuple into a DataOutputStream on bytearray |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(10*1024*1024);// 10 MB |
| DataOutputStream out = new DataOutputStream(bout); |
| sedes.writeDatum(out, tuple); |
| out.flush(); |
| |
| //read tuple back |
| ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| DataInputStream in = new DataInputStream(bin); |
| Tuple tupleout = (Tuple)sedes.readDatum(in); |
| |
| assertEquals(" Tuple before and after serialization are same ", |
| tuple, tupleout); |
| |
| } |
| |
| /** |
| * See PIG-2936. The purpose of this test is to ensure that Tuples are being serialized in |
| * the specific way that we expect. |
| */ |
| @Test |
| public void testTupleSerializationSpecific() throws Exception { |
| byte[] flags = { |
| BinInterSedes.TUPLE_0, |
| BinInterSedes.TUPLE_1, |
| BinInterSedes.TUPLE_2, |
| BinInterSedes.TUPLE_3, |
| BinInterSedes.TUPLE_4, |
| BinInterSedes.TUPLE_5, |
| BinInterSedes.TUPLE_6, |
| BinInterSedes.TUPLE_7, |
| BinInterSedes.TUPLE_8, |
| BinInterSedes.TUPLE_9, |
| }; |
| |
| for (int i = 0; i < flags.length; i++) { |
| Tuple t = mTupleFactory.newTuple(i); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutput out = new DataOutputStream(baos); |
| out.writeByte(flags[i]); |
| |
| for (int j = 0; j < i; j++) { |
| Integer val = Integer.valueOf(random.nextInt()); |
| bis.writeDatum(out, val); |
| t.set(j, val); |
| } |
| |
| testSerTuple(t, baos.toByteArray()); |
| } |
| } |
| |
| |
| /* |
| The following tests are intended to verify the reading and writing of intermediate files of Pig (of InterStorage) |
| The test records are 11,14,22,14 bytes long. |
| Below I illustrate the splits in rows, records as [] with size and sync markers with [M] |
| */ |
| |
| /** |
| * One sync marker only and three splits where the records overlap the splitends. |
| * (Reader of 1st split should read every record, readers of 2nd and 3rd splits should read no records.) |
| * [M(10)] [11] [11- |
| * -3] [ 22 ] [7- |
| * -7] |
| * |
| * @throws Exception |
| */ |
| @Test |
| public void testSyncMarkerOneMarkerAtBeginningOnly() throws Exception { |
| testInterStorageSyncMarker(32, 10, 2000L); |
| } |
| |
| /** |
| * Some sync markers are positioned so that they begin at a split's end and they end in the next split's beginning. |
| * (Reader of a split has to read until the next sync marker that has all its bytes in a following split.) |
| * @throws Exception |
| */ |
| @Test |
| public void testSyncMarkerOverlappingMarker() throws Exception { |
| /* |
| * [M(16)] [11] [M(16)] [5- |
| * -9] [M(16)] [ 22 ] [M(1- |
| * -15)] [14] |
| */ |
| testInterStorageSyncMarker(48, 16, 10L); |
| /* |
| * [M(4)] [ 4- |
| * -7] [1- |
| * - 8 - |
| * -5] [M(3- |
| * -1)] [ 7- |
| * - 8 - |
| * -7] [M(1- |
| * -3)] [ 5- |
| * - 8 - |
| * -1] |
| */ |
| testInterStorageSyncMarker(8, 4, 20L); |
| } |
| |
| /** |
| * No illustration for this one to save characters .. Sync size is over 3 times the size of split size, this is an |
| * extremely unlikely scenario. Markers here span over 4 splits. |
| * @throws Exception |
| */ |
| @Test |
| public void testSyncMarkerLongerMarkerThanSplit() throws Exception { |
| testInterStorageSyncMarker(5, 16, 20L); |
| } |
| |
| /** |
| * A sync marker is positioned at exactly the end of the first split without overlapping into the next one. |
| * (Reader of the 1st split should read past it and into the 2nd split until next marker.) |
| * |
| * [M(2)] [11] [14] [M(2)] |
| * [ 22 ] [M(2)] [ 5- |
| * -9] |
| * @throws Exception |
| */ |
| @Test |
| public void testSyncMarkerMarkerOnSplitEnd() throws Exception { |
| testInterStorageSyncMarker(29, 2, 20L); |
| } |
| |
| /** |
| * A sync marker is positioned at exactly the beginning of the 3rd split. |
| * (Reader of the 1st split should read 1st and 2nd splits fully, reader of 2nd split should read no records.) |
| * |
| * [M(3)] [11] |
| * [ 14 ] |
| * [M(3) [11- |
| * -11 ] [3- |
| * -11 ] |
| * @throws Exception |
| */ |
| @Test |
| public void testSyncMarkerMarkerOnSplitBeginning() throws Exception { |
| testInterStorageSyncMarker(14, 3, 25L); |
| } |
| |
| private void testInterStorageSyncMarker(int maxSplitSize, int syncSize, long syncInterval) throws Exception { |
| PigServer pigServer = new PigServer(Util.getLocalTestMode(), new Properties()); |
| |
| Properties pigProperties = pigServer.getPigContext().getProperties(); |
| pigProperties.setProperty("mapreduce.input.fileinputformat.split.maxsize", String.valueOf(maxSplitSize)); |
| pigProperties.setProperty(PigConfiguration.PIG_INTERSTORAGE_SYNCMARKER_SIZE, String.valueOf(syncSize)); |
| pigProperties.setProperty(PigConfiguration.PIG_INTERSTORAGE_SYNCMARKER_INTERVAL, String.valueOf(syncInterval)); |
| |
| //Without proper random record markers 0x01020327 would be identified as a marker and 0x50 as an unknown datatype |
| //ByteBuffer.wrap(new byte[]{0x01, 0x02, 0x03, 0x27, 0x50, 0x0, 0x0, 0x0}).getLong() => 72624011372134400 |
| |
| String[] inputData = new String[]{"apple\t1\t1","orange\t2\t2","kiwi\t16909095\t72624011372134400","orange\t4\t4"}; |
| String[] expected = new String[] {"(apple,1,1)","(orange,2,2)","(kiwi,16909095,72624011372134400)","(orange,4,4)"}; |
| File inputFile = Util.createInputFile("interStorageInput", "", inputData); |
| inputFile.deleteOnExit(); |
| |
| //Without proper random record markers 0x01020327 would be identified as a marker and although no errors are |
| // thrown the result will contain incorrect schema and values past this number |
| //ByteBuffer.wrap(new byte[]{0x01, 0x02, 0x03, 0x27, 0x01, 0x0, 0x0, 0x0}).getLong() => 72624010046734336 |
| |
| String[] inputData2 = new String[]{"apple\t1\t1","orange\t2\t2","kiwi\t16909095\t72624010046734336","orange\t4\t4"}; |
| String[] expected2 = new String[] {"(apple,1,1)","(orange,2,2)","(kiwi,16909095,72624010046734336)","(orange,4,4)"}; |
| File inputFile2 = Util.createInputFile("interStorageInput2", "", inputData2); |
| inputFile2.deleteOnExit(); |
| |
| File binOutputdir = new File("build/test/interStorageTest"); |
| Util.deleteDirectory(binOutputdir); |
| |
| String script = "A = LOAD '"+inputFile.getAbsolutePath()+"' AS (name:chararray, cnt:int, cnt2:long);\n" + |
| "STORE A INTO '"+binOutputdir.getAbsolutePath()+"' USING org.apache.pig.impl.io.InterStorage();\n" + |
| "\n" + |
| "B = LOAD '"+binOutputdir.getAbsolutePath()+"' USING org.apache.pig.impl.io.InterStorage();\n"; |
| |
| pigServer.registerQuery(script); |
| Iterator<Tuple> it = pigServer.openIterator("B"); |
| Util.checkQueryOutputsAfterSortRecursive(it, expected, |
| org.apache.pig.newplan.logical.Util.translateSchema(pigServer.dumpSchema("B"))); |
| |
| Util.deleteDirectory(binOutputdir); |
| |
| pigServer.registerQuery(script.replaceAll(inputFile.getAbsolutePath(), inputFile2.getAbsolutePath())); |
| it = pigServer.openIterator("B"); |
| Util.checkQueryOutputsAfterSortRecursive(it, expected2, |
| org.apache.pig.newplan.logical.Util.translateSchema(pigServer.dumpSchema("B"))); |
| |
| } |
| |
| /** |
| * Tests all combination where: |
| * sync marker is {x, y, 4} |
| * data is {127, -2, 2, z, x, y, 4, 1, 2, 3} |
| * x,y,z in [-128,127] |
| * This means that a sync marker has to be found in all iterations (total=16,777,216) |
| * @throws Exception |
| */ |
| @Test |
| public void testPrefixSyncMarkers() throws Exception { |
| long defaultInterval = PigConfiguration.PIG_INTERSTORAGE_SYNCMARKER_INTERVAL_DEFAULT; |
| |
| for (int b0 = -128; b0 <= 127; b0++) { |
| for (int b1 = -128; b1 <= 127; b1++) { |
| for (int b2 = -128; b2 <= 127; b2++) { |
| byte[] syncMarker = new byte[]{(byte) b0, (byte) b1, (byte)4}; |
| byte[] data = new byte[]{127, -1, 2, (byte) b2, (byte) b0, (byte) b1, 4, 1, 2, 3}; |
| |
| ByteArrayInputStream bi = new ByteArrayInputStream(data); |
| BufferedPositionedInputStream bpi = new BufferedPositionedInputStream(bi); |
| |
| InterRecordReader reader = new InterRecordReader(syncMarker.length, defaultInterval); |
| Whitebox.setInternalState(reader, "syncMarker", syncMarker); |
| Whitebox.setInternalState(reader, "end", data.length); |
| Whitebox.setInternalState(reader, "in", bpi); |
| |
| try { |
| boolean ret = reader.skipUntilMarkerOrSplitEndOrEOF(); |
| assertTrue("Marker should have been found: " + "marker: " + |
| Arrays.toString(syncMarker) + " , data: " + Arrays.toString(data),ret); |
| } finally { |
| bpi.close(); |
| } |
| |
| } |
| } |
| } |
| } |
| |
| private void testSerTuple(Tuple t, byte[] expected) throws Exception { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutput out = new DataOutputStream(baos); |
| |
| bis.writeDatum(out, t); |
| |
| Tuple t2 = (Tuple) bis.readDatum(new DataInputStream(new ByteArrayInputStream(baos.toByteArray()))); |
| |
| assertEquals(t, t2); |
| } |
| } |
