Examples with TxnStore org.apache.hadoop.hive.metastore.txn.TxnStore used on opensource projects

Example 16 with TxnStore

use of org.apache.hadoop.hive.metastore.txn.TxnStore in project hive by apache.

the class TestCompactor method majorCompactAfterAbort.

@Test
public void majorCompactAfterAbort() throws Exception {
    String dbName = "default";
    String tblName = "cws";
    List<String> colNames = Arrays.asList("a", "b");
    String columnNamesProperty = "a,b";
    String columnTypesProperty = "int:string";
    executeStatementOnDriver("drop table if exists " + tblName, driver);
    executeStatementOnDriver("CREATE TABLE " + tblName + "(a INT, b STRING) " + //currently ACID requires table to be bucketed
    " CLUSTERED BY(a) INTO 1 BUCKETS" + " STORED AS ORC  TBLPROPERTIES ('transactional'='true')", driver);
    HiveEndPoint endPt = new HiveEndPoint(null, dbName, tblName, null);
    DelimitedInputWriter writer = new DelimitedInputWriter(new String[] { "a", "b" }, ",", endPt);
    StreamingConnection connection = endPt.newConnection(false, "UT_" + Thread.currentThread().getName());
    try {
        // Write a couple of batches
        for (int i = 0; i < 2; i++) {
            writeBatch(connection, writer, false);
        }
        // Start a third batch, but don't close it.
        TransactionBatch txnBatch = connection.fetchTransactionBatch(2, writer);
        txnBatch.beginNextTransaction();
        txnBatch.abort();
        txnBatch.beginNextTransaction();
        txnBatch.abort();
        // Now, compact
        TxnStore txnHandler = TxnUtils.getTxnStore(conf);
        txnHandler.compact(new CompactionRequest(dbName, tblName, CompactionType.MAJOR));
        Worker t = new Worker();
        t.setThreadId((int) t.getId());
        t.setHiveConf(conf);
        AtomicBoolean stop = new AtomicBoolean(true);
        AtomicBoolean looped = new AtomicBoolean();
        t.init(stop, looped);
        t.run();
        // Find the location of the table
        IMetaStoreClient msClient = new HiveMetaStoreClient(conf);
        Table table = msClient.getTable(dbName, tblName);
        FileSystem fs = FileSystem.get(conf);
        FileStatus[] stat = fs.listStatus(new Path(table.getSd().getLocation()), AcidUtils.baseFileFilter);
        if (1 != stat.length) {
            Assert.fail("majorCompactAfterAbort FileStatus[] stat " + Arrays.toString(stat));
        }
        if (1 != stat.length) {
            Assert.fail("Expecting 1 file \"base_0000004\" and found " + stat.length + " files " + Arrays.toString(stat));
        }
        String name = stat[0].getPath().getName();
        if (!name.equals("base_0000004")) {
            Assert.fail("majorCompactAfterAbort name " + name + " not equals to base_0000004");
        }
        checkExpectedTxnsPresent(stat[0].getPath(), null, columnNamesProperty, columnTypesProperty, 0, 1L, 4L);
    } finally {
        connection.close();
    }
}

Example 17 with TxnStore

use of org.apache.hadoop.hive.metastore.txn.TxnStore in project hive by apache.

the class TestCompactor method testStatsAfterCompactionPartTbl.

/**
   * After each major compaction, stats need to be updated on each column of the
   * table/partition which previously had stats.
   * 1. create a bucketed ORC backed table (Orc is currently required by ACID)
   * 2. populate 2 partitions with data
   * 3. compute stats
   * 4. insert some data into the table using StreamingAPI
   * 5. Trigger major compaction (which should update stats)
   * 6. check that stats have been updated
   * @throws Exception
   * todo:
   * 2. add non-partitioned test
   * 4. add a test with sorted table?
   */
@Test
public void testStatsAfterCompactionPartTbl() throws Exception {
    //as of (8/27/2014) Hive 0.14, ACID/Orc requires HiveInputFormat
    String tblName = "compaction_test";
    String tblNameStg = tblName + "_stg";
    List<String> colNames = Arrays.asList("a", "b");
    executeStatementOnDriver("drop table if exists " + tblName, driver);
    executeStatementOnDriver("drop table if exists " + tblNameStg, driver);
    executeStatementOnDriver("CREATE TABLE " + tblName + "(a INT, b STRING) " + " PARTITIONED BY(bkt INT)" + //currently ACID requires table to be bucketed
    " CLUSTERED BY(a) INTO 4 BUCKETS" + " STORED AS ORC  TBLPROPERTIES ('transactional'='true')", driver);
    executeStatementOnDriver("CREATE EXTERNAL TABLE " + tblNameStg + "(a INT, b STRING)" + " ROW FORMAT DELIMITED FIELDS TERMINATED BY '\\t' LINES TERMINATED BY '\\n'" + " STORED AS TEXTFILE" + " LOCATION '" + stagingFolder.newFolder().toURI().getPath() + "'", driver);
    executeStatementOnDriver("load data local inpath '" + BASIC_FILE_NAME + "' overwrite into table " + tblNameStg, driver);
    execSelectAndDumpData("select * from " + tblNameStg, driver, "Dumping data for " + tblNameStg + " after load:");
    executeStatementOnDriver("FROM " + tblNameStg + " INSERT INTO TABLE " + tblName + " PARTITION(bkt=0) " + "SELECT a, b where a < 2", driver);
    executeStatementOnDriver("FROM " + tblNameStg + " INSERT INTO TABLE " + tblName + " PARTITION(bkt=1) " + "SELECT a, b where a >= 2", driver);
    execSelectAndDumpData("select * from " + tblName, driver, "Dumping data for " + tblName + " after load:");
    TxnStore txnHandler = TxnUtils.getTxnStore(conf);
    CompactionInfo ci = new CompactionInfo("default", tblName, "bkt=0", CompactionType.MAJOR);
    LOG.debug("List of stats columns before analyze Part1: " + txnHandler.findColumnsWithStats(ci));
    Worker.StatsUpdater su = Worker.StatsUpdater.init(ci, colNames, conf, System.getProperty("user.name"));
    //compute stats before compaction
    su.gatherStats();
    LOG.debug("List of stats columns after analyze Part1: " + txnHandler.findColumnsWithStats(ci));
    CompactionInfo ciPart2 = new CompactionInfo("default", tblName, "bkt=1", CompactionType.MAJOR);
    LOG.debug("List of stats columns before analyze Part2: " + txnHandler.findColumnsWithStats(ci));
    su = Worker.StatsUpdater.init(ciPart2, colNames, conf, System.getProperty("user.name"));
    //compute stats before compaction
    su.gatherStats();
    LOG.debug("List of stats columns after analyze Part2: " + txnHandler.findColumnsWithStats(ci));
    //now make sure we get the stats we expect for partition we are going to add data to later
    Map<String, List<ColumnStatisticsObj>> stats = msClient.getPartitionColumnStatistics(ci.dbname, ci.tableName, Arrays.asList(ci.partName), colNames);
    List<ColumnStatisticsObj> colStats = stats.get(ci.partName);
    Assert.assertNotNull("No stats found for partition " + ci.partName, colStats);
    Assert.assertEquals("Expected column 'a' at index 0", "a", colStats.get(0).getColName());
    Assert.assertEquals("Expected column 'b' at index 1", "b", colStats.get(1).getColName());
    LongColumnStatsData colAStats = colStats.get(0).getStatsData().getLongStats();
    Assert.assertEquals("lowValue a", 1, colAStats.getLowValue());
    Assert.assertEquals("highValue a", 1, colAStats.getHighValue());
    Assert.assertEquals("numNulls a", 0, colAStats.getNumNulls());
    Assert.assertEquals("numNdv a", 1, colAStats.getNumDVs());
    StringColumnStatsData colBStats = colStats.get(1).getStatsData().getStringStats();
    Assert.assertEquals("maxColLen b", 3, colBStats.getMaxColLen());
    Assert.assertEquals("avgColLen b", 3.0, colBStats.getAvgColLen(), 0.01);
    Assert.assertEquals("numNulls b", 0, colBStats.getNumNulls());
    Assert.assertEquals("nunDVs", 2, colBStats.getNumDVs());
    //now save stats for partition we won't modify
    stats = msClient.getPartitionColumnStatistics(ciPart2.dbname, ciPart2.tableName, Arrays.asList(ciPart2.partName), colNames);
    colStats = stats.get(ciPart2.partName);
    LongColumnStatsData colAStatsPart2 = colStats.get(0).getStatsData().getLongStats();
    StringColumnStatsData colBStatsPart2 = colStats.get(1).getStatsData().getStringStats();
    HiveEndPoint endPt = new HiveEndPoint(null, ci.dbname, ci.tableName, Arrays.asList("0"));
    DelimitedInputWriter writer = new DelimitedInputWriter(new String[] { "a", "b" }, ",", endPt);
    /*next call will eventually end up in HiveEndPoint.createPartitionIfNotExists() which
    makes an operation on Driver
    * and starts it's own CliSessionState and then closes it, which removes it from ThreadLoacal;
    * thus the session
    * created in this class is gone after this; I fixed it in HiveEndPoint*/
    StreamingConnection connection = endPt.newConnection(true, "UT_" + Thread.currentThread().getName());
    TransactionBatch txnBatch = connection.fetchTransactionBatch(2, writer);
    txnBatch.beginNextTransaction();
    Assert.assertEquals(TransactionBatch.TxnState.OPEN, txnBatch.getCurrentTransactionState());
    txnBatch.write("50,Kiev".getBytes());
    txnBatch.write("51,St. Petersburg".getBytes());
    txnBatch.write("44,Boston".getBytes());
    txnBatch.commit();
    txnBatch.beginNextTransaction();
    txnBatch.write("52,Tel Aviv".getBytes());
    txnBatch.write("53,Atlantis".getBytes());
    txnBatch.write("53,Boston".getBytes());
    txnBatch.commit();
    txnBatch.close();
    connection.close();
    execSelectAndDumpData("select * from " + ci.getFullTableName(), driver, ci.getFullTableName());
    //so now we have written some new data to bkt=0 and it shows up
    CompactionRequest rqst = new CompactionRequest(ci.dbname, ci.tableName, CompactionType.MAJOR);
    rqst.setPartitionname(ci.partName);
    txnHandler.compact(rqst);
    Worker t = new Worker();
    t.setThreadId((int) t.getId());
    t.setHiveConf(conf);
    AtomicBoolean stop = new AtomicBoolean();
    AtomicBoolean looped = new AtomicBoolean();
    stop.set(true);
    t.init(stop, looped);
    t.run();
    ShowCompactResponse rsp = txnHandler.showCompact(new ShowCompactRequest());
    List<ShowCompactResponseElement> compacts = rsp.getCompacts();
    if (1 != compacts.size()) {
        Assert.fail("Expecting 1 file and found " + compacts.size() + " files " + compacts.toString());
    }
    Assert.assertEquals("ready for cleaning", compacts.get(0).getState());
    stats = msClient.getPartitionColumnStatistics(ci.dbname, ci.tableName, Arrays.asList(ci.partName), colNames);
    colStats = stats.get(ci.partName);
    Assert.assertNotNull("No stats found for partition " + ci.partName, colStats);
    Assert.assertEquals("Expected column 'a' at index 0", "a", colStats.get(0).getColName());
    Assert.assertEquals("Expected column 'b' at index 1", "b", colStats.get(1).getColName());
    colAStats = colStats.get(0).getStatsData().getLongStats();
    Assert.assertEquals("lowValue a", 1, colAStats.getLowValue());
    Assert.assertEquals("highValue a", 53, colAStats.getHighValue());
    Assert.assertEquals("numNulls a", 0, colAStats.getNumNulls());
    Assert.assertEquals("numNdv a", 6, colAStats.getNumDVs());
    colBStats = colStats.get(1).getStatsData().getStringStats();
    Assert.assertEquals("maxColLen b", 14, colBStats.getMaxColLen());
    //cast it to long to get rid of periodic decimal
    Assert.assertEquals("avgColLen b", (long) 6.1111111111, (long) colBStats.getAvgColLen());
    Assert.assertEquals("numNulls b", 0, colBStats.getNumNulls());
    Assert.assertEquals("nunDVs", 10, colBStats.getNumDVs());
    //now check that stats for partition we didn't modify did not change
    stats = msClient.getPartitionColumnStatistics(ciPart2.dbname, ciPart2.tableName, Arrays.asList(ciPart2.partName), colNames);
    colStats = stats.get(ciPart2.partName);
    Assert.assertEquals("Expected stats for " + ciPart2.partName + " to stay the same", colAStatsPart2, colStats.get(0).getStatsData().getLongStats());
    Assert.assertEquals("Expected stats for " + ciPart2.partName + " to stay the same", colBStatsPart2, colStats.get(1).getStatsData().getStringStats());
}

Example 18 with TxnStore

use of org.apache.hadoop.hive.metastore.txn.TxnStore in project hive by apache.

the class TestCompactor method dynamicPartitioningDelete.

@Test
public void dynamicPartitioningDelete() throws Exception {
    String tblName = "ddpct";
    List<String> colNames = Arrays.asList("a", "b");
    executeStatementOnDriver("drop table if exists " + tblName, driver);
    executeStatementOnDriver("CREATE TABLE " + tblName + "(a INT, b STRING) " + " PARTITIONED BY(ds string)" + //currently ACID requires table to be bucketed
    " CLUSTERED BY(a) INTO 2 BUCKETS" + " STORED AS ORC TBLPROPERTIES ('transactional'='true')", driver);
    executeStatementOnDriver("insert into " + tblName + " partition (ds) values (1, 'fred', " + "'today'), (2, 'wilma', 'yesterday')", driver);
    executeStatementOnDriver("update " + tblName + " set b = 'fred' where a = 1", driver);
    executeStatementOnDriver("delete from " + tblName + " where b = 'fred'", driver);
    Initiator initiator = new Initiator();
    initiator.setThreadId((int) initiator.getId());
    // Set to 2 so insert and update don't set it off but delete does
    conf.setIntVar(HiveConf.ConfVars.HIVE_COMPACTOR_DELTA_NUM_THRESHOLD, 2);
    initiator.setHiveConf(conf);
    AtomicBoolean stop = new AtomicBoolean();
    stop.set(true);
    initiator.init(stop, new AtomicBoolean());
    initiator.run();
    TxnStore txnHandler = TxnUtils.getTxnStore(conf);
    ShowCompactResponse rsp = txnHandler.showCompact(new ShowCompactRequest());
    List<ShowCompactResponseElement> compacts = rsp.getCompacts();
    Assert.assertEquals(1, compacts.size());
    SortedSet<String> partNames = new TreeSet<String>();
    for (int i = 0; i < compacts.size(); i++) {
        Assert.assertEquals("default", compacts.get(i).getDbname());
        Assert.assertEquals(tblName, compacts.get(i).getTablename());
        Assert.assertEquals("initiated", compacts.get(i).getState());
        partNames.add(compacts.get(i).getPartitionname());
    }
    List<String> names = new ArrayList<String>(partNames);
    Assert.assertEquals("ds=today", names.get(0));
}

Example 19 with TxnStore

use of org.apache.hadoop.hive.metastore.txn.TxnStore in project hive by apache.

the class TestCompactor method testTableProperties.

/**
   * Users have the choice of specifying compaction related tblproperties either in CREATE TABLE
   * statement or in ALTER TABLE .. COMPACT statement. This tests both cases.
   * @throws Exception
   */
@Test
public void testTableProperties() throws Exception {
    // plain acid table
    String tblName1 = "ttp1";
    // acid table with customized tblproperties
    String tblName2 = "ttp2";
    executeStatementOnDriver("drop table if exists " + tblName1, driver);
    executeStatementOnDriver("drop table if exists " + tblName2, driver);
    executeStatementOnDriver("CREATE TABLE " + tblName1 + "(a INT, b STRING) " + " CLUSTERED BY(a) INTO 2 BUCKETS STORED AS ORC TBLPROPERTIES ('transactional'='true')", driver);
    executeStatementOnDriver("CREATE TABLE " + tblName2 + "(a INT, b STRING) " + " CLUSTERED BY(a) INTO 2 BUCKETS STORED AS ORC TBLPROPERTIES (" + "'transactional'='true'," + // 2048 MB memory for compaction map job
    "'compactor.mapreduce.map.memory.mb'='2048'," + // minor compaction if more than 4 delta dirs
    "'compactorthreshold.hive.compactor.delta.num.threshold'='4'," + // major compaction if more than 49%
    "'compactorthreshold.hive.compactor.delta.pct.threshold'='0.49'" + ")", driver);
    // Insert 5 rows to both tables
    executeStatementOnDriver("insert into " + tblName1 + " values (1, 'a')", driver);
    executeStatementOnDriver("insert into " + tblName1 + " values (2, 'b')", driver);
    executeStatementOnDriver("insert into " + tblName1 + " values (3, 'c')", driver);
    executeStatementOnDriver("insert into " + tblName1 + " values (4, 'd')", driver);
    executeStatementOnDriver("insert into " + tblName1 + " values (5, 'e')", driver);
    executeStatementOnDriver("insert into " + tblName2 + " values (1, 'a')", driver);
    executeStatementOnDriver("insert into " + tblName2 + " values (2, 'b')", driver);
    executeStatementOnDriver("insert into " + tblName2 + " values (3, 'c')", driver);
    executeStatementOnDriver("insert into " + tblName2 + " values (4, 'd')", driver);
    executeStatementOnDriver("insert into " + tblName2 + " values (5, 'e')", driver);
    runInitiator(conf);
    // Compactor should only schedule compaction for ttp2 (delta.num.threshold=4), not ttp1
    TxnStore txnHandler = TxnUtils.getTxnStore(conf);
    ShowCompactResponse rsp = txnHandler.showCompact(new ShowCompactRequest());
    Assert.assertEquals(1, rsp.getCompacts().size());
    Assert.assertEquals(TxnStore.INITIATED_RESPONSE, rsp.getCompacts().get(0).getState());
    Assert.assertEquals("ttp2", rsp.getCompacts().get(0).getTablename());
    // type is MAJOR since there's no base yet
    Assert.assertEquals(CompactionType.MAJOR, rsp.getCompacts().get(0).getType());
    // Finish the scheduled compaction for ttp2, and manually compact ttp1, to make them comparable again
    executeStatementOnDriver("alter table " + tblName1 + " compact 'major'", driver);
    rsp = txnHandler.showCompact(new ShowCompactRequest());
    Assert.assertEquals(2, rsp.getCompacts().size());
    Assert.assertEquals("ttp2", rsp.getCompacts().get(0).getTablename());
    Assert.assertEquals(TxnStore.INITIATED_RESPONSE, rsp.getCompacts().get(0).getState());
    Assert.assertEquals("ttp1", rsp.getCompacts().get(1).getTablename());
    Assert.assertEquals(TxnStore.INITIATED_RESPONSE, rsp.getCompacts().get(1).getState());
    // compact ttp2, by running the Worker explicitly, in order to get the reference to the compactor MR job
    AtomicBoolean stop = new AtomicBoolean(true);
    Worker t = new Worker();
    t.setThreadId((int) t.getId());
    t.setHiveConf(conf);
    AtomicBoolean looped = new AtomicBoolean();
    t.init(stop, looped);
    t.run();
    JobConf job = t.getMrJob();
    // 2048 comes from tblproperties
    Assert.assertEquals("2048", job.get("mapreduce.map.memory.mb"));
    // Compact ttp1
    stop = new AtomicBoolean(true);
    t = new Worker();
    t.setThreadId((int) t.getId());
    t.setHiveConf(conf);
    looped = new AtomicBoolean();
    t.init(stop, looped);
    t.run();
    job = t.getMrJob();
    // 1024 is the default value
    Assert.assertEquals("1024", job.get("mapreduce.map.memory.mb"));
    // Clean up
    runCleaner(conf);
    rsp = txnHandler.showCompact(new ShowCompactRequest());
    Assert.assertEquals(2, rsp.getCompacts().size());
    Assert.assertEquals("ttp2", rsp.getCompacts().get(0).getTablename());
    Assert.assertEquals(TxnStore.SUCCEEDED_RESPONSE, rsp.getCompacts().get(0).getState());
    Assert.assertEquals("ttp1", rsp.getCompacts().get(1).getTablename());
    Assert.assertEquals(TxnStore.SUCCEEDED_RESPONSE, rsp.getCompacts().get(1).getState());
    // Insert one more row - this should trigger hive.compactor.delta.pct.threshold to be reached for ttp2
    executeStatementOnDriver("insert into " + tblName1 + " values (6, 'f')", driver);
    executeStatementOnDriver("insert into " + tblName2 + " values (6, 'f')", driver);
    // Intentionally set this high so that it will not trigger major compaction for ttp1.
    // Only trigger major compaction for ttp2 (delta.pct.threshold=0.5) because of the newly inserted row (actual pct: 0.66)
    conf.setFloatVar(HiveConf.ConfVars.HIVE_COMPACTOR_DELTA_PCT_THRESHOLD, 0.8f);
    runInitiator(conf);
    rsp = txnHandler.showCompact(new ShowCompactRequest());
    Assert.assertEquals(3, rsp.getCompacts().size());
    Assert.assertEquals("ttp2", rsp.getCompacts().get(0).getTablename());
    Assert.assertEquals(TxnStore.INITIATED_RESPONSE, rsp.getCompacts().get(0).getState());
    // Finish the scheduled compaction for ttp2
    runWorker(conf);
    runCleaner(conf);
    rsp = txnHandler.showCompact(new ShowCompactRequest());
    Assert.assertEquals(3, rsp.getCompacts().size());
    Assert.assertEquals("ttp2", rsp.getCompacts().get(0).getTablename());
    Assert.assertEquals(TxnStore.SUCCEEDED_RESPONSE, rsp.getCompacts().get(0).getState());
    // Now test tblproperties specified on ALTER TABLE .. COMPACT .. statement
    executeStatementOnDriver("insert into " + tblName2 + " values (7, 'g')", driver);
    executeStatementOnDriver("alter table " + tblName2 + " compact 'major'" + " with overwrite tblproperties (" + "'compactor.mapreduce.map.memory.mb'='3072'," + "'tblprops.orc.compress.size'='8192')", driver);
    rsp = txnHandler.showCompact(new ShowCompactRequest());
    Assert.assertEquals(4, rsp.getCompacts().size());
    Assert.assertEquals("ttp2", rsp.getCompacts().get(0).getTablename());
    Assert.assertEquals(TxnStore.INITIATED_RESPONSE, rsp.getCompacts().get(0).getState());
    // Run the Worker explicitly, in order to get the reference to the compactor MR job
    stop = new AtomicBoolean(true);
    t = new Worker();
    t.setThreadId((int) t.getId());
    t.setHiveConf(conf);
    looped = new AtomicBoolean();
    t.init(stop, looped);
    t.run();
    job = t.getMrJob();
    Assert.assertEquals("3072", job.get("mapreduce.map.memory.mb"));
    Assert.assertTrue(job.get("hive.compactor.table.props").contains("orc.compress.size4:8192"));
}

Example 20 with TxnStore

use of org.apache.hadoop.hive.metastore.txn.TxnStore in project hive by apache.

the class TestCompactor method testMinorCompactionForSplitUpdateWithInsertsAndDeletes.

@Test
public void testMinorCompactionForSplitUpdateWithInsertsAndDeletes() throws Exception {
    String agentInfo = "UT_" + Thread.currentThread().getName();
    String dbName = "default";
    String tblName = "cws";
    List<String> colNames = Arrays.asList("a", "b");
    String columnNamesProperty = "a,b";
    String columnTypesProperty = "int:string";
    executeStatementOnDriver("drop table if exists " + tblName, driver);
    executeStatementOnDriver("CREATE TABLE " + tblName + "(a INT, b STRING) " + //currently ACID requires table to be bucketed
    " CLUSTERED BY(a) INTO 1 BUCKETS" + " STORED AS ORC  TBLPROPERTIES ('transactional'='true'," + "'transactional_properties'='default')", driver);
    // Insert some data -> this will generate only insert deltas and no delete deltas: delta_1_1
    executeStatementOnDriver("INSERT INTO " + tblName + "(a,b) VALUES(1, 'foo')", driver);
    // Insert some data -> this will again generate only insert deltas and no delete deltas: delta_2_2
    executeStatementOnDriver("INSERT INTO " + tblName + "(a,b) VALUES(2, 'bar')", driver);
    // Delete some data -> this will generate only delete deltas and no insert deltas: delete_delta_3_3
    executeStatementOnDriver("DELETE FROM " + tblName + " WHERE a = 2", driver);
    // Now, compact -> Compaction produces a single range for both delta and delete delta
    // That is, both delta and delete_deltas would be compacted into delta_1_3 and delete_delta_1_3
    // even though there are only two delta_1_1, delta_2_2 and one delete_delta_3_3.
    TxnStore txnHandler = TxnUtils.getTxnStore(conf);
    txnHandler.compact(new CompactionRequest(dbName, tblName, CompactionType.MINOR));
    Worker t = new Worker();
    t.setThreadId((int) t.getId());
    t.setHiveConf(conf);
    AtomicBoolean stop = new AtomicBoolean(true);
    AtomicBoolean looped = new AtomicBoolean();
    t.init(stop, looped);
    t.run();
    // Find the location of the table
    IMetaStoreClient msClient = new HiveMetaStoreClient(conf);
    Table table = msClient.getTable(dbName, tblName);
    FileSystem fs = FileSystem.get(conf);
    // Verify that we have got correct set of deltas.
    FileStatus[] stat = fs.listStatus(new Path(table.getSd().getLocation()), AcidUtils.deltaFileFilter);
    String[] deltas = new String[stat.length];
    Path minorCompactedDelta = null;
    for (int i = 0; i < deltas.length; i++) {
        deltas[i] = stat[i].getPath().getName();
        if (deltas[i].equals("delta_0000001_0000003")) {
            minorCompactedDelta = stat[i].getPath();
        }
    }
    Arrays.sort(deltas);
    String[] expectedDeltas = new String[] { "delta_0000001_0000001_0000", "delta_0000001_0000003", "delta_0000002_0000002_0000" };
    if (!Arrays.deepEquals(expectedDeltas, deltas)) {
        Assert.fail("Expected: " + Arrays.toString(expectedDeltas) + ", found: " + Arrays.toString(deltas));
    }
    checkExpectedTxnsPresent(null, new Path[] { minorCompactedDelta }, columnNamesProperty, columnTypesProperty, 0, 1L, 2L);
    // Verify that we have got correct set of delete_deltas.
    FileStatus[] deleteDeltaStat = fs.listStatus(new Path(table.getSd().getLocation()), AcidUtils.deleteEventDeltaDirFilter);
    String[] deleteDeltas = new String[deleteDeltaStat.length];
    Path minorCompactedDeleteDelta = null;
    for (int i = 0; i < deleteDeltas.length; i++) {
        deleteDeltas[i] = deleteDeltaStat[i].getPath().getName();
        if (deleteDeltas[i].equals("delete_delta_0000001_0000003")) {
            minorCompactedDeleteDelta = deleteDeltaStat[i].getPath();
        }
    }
    Arrays.sort(deleteDeltas);
    String[] expectedDeleteDeltas = new String[] { "delete_delta_0000001_0000003", "delete_delta_0000003_0000003_0000" };
    if (!Arrays.deepEquals(expectedDeleteDeltas, deleteDeltas)) {
        Assert.fail("Expected: " + Arrays.toString(expectedDeleteDeltas) + ", found: " + Arrays.toString(deleteDeltas));
    }
    checkExpectedTxnsPresent(null, new Path[] { minorCompactedDeleteDelta }, columnNamesProperty, columnTypesProperty, 0, 2L, 2L);
}