Examples with AlterTableMessage org.apache.hadoop.hive.metastore.messaging.AlterTableMessage used on opensource projects

Example 1 with AlterTableMessage

use of org.apache.hadoop.hive.metastore.messaging.AlterTableMessage in project hive by apache.

the class DbNotificationListener method onAlterTable.

/**
 * @param tableEvent alter table event
 * @throws MetaException
 */
@Override
public void onAlterTable(AlterTableEvent tableEvent) throws MetaException {
    Table before = tableEvent.getOldTable();
    Table after = tableEvent.getNewTable();
    AlterTableMessage msg = MessageBuilder.getInstance().buildAlterTableMessage(before, after, tableEvent.getIsTruncateOp(), tableEvent.getWriteId());
    NotificationEvent event = new NotificationEvent(0, now(), EventType.ALTER_TABLE.toString(), msgEncoder.getSerializer().serialize(msg));
    event.setCatName(after.isSetCatName() ? after.getCatName() : DEFAULT_CATALOG_NAME);
    event.setDbName(after.getDbName());
    event.setTableName(after.getTableName());
    process(event, tableEvent);
}

Example 2 with AlterTableMessage

use of org.apache.hadoop.hive.metastore.messaging.AlterTableMessage in project hive by apache.

the class TableHandler method extract.

private Tuple extract(Context context) throws SemanticException {
    try {
        String tableType = null;
        long writeId = DEFAULT_WRITE_ID;
        switch(context.dmd.getDumpType()) {
            case EVENT_CREATE_TABLE:
            case EVENT_ADD_PARTITION:
                Path metadataPath = new Path(context.location, EximUtil.METADATA_NAME);
                MetaData rv = EximUtil.readMetaData(metadataPath.getFileSystem(context.hiveConf), metadataPath);
                tableType = rv.getTable().getTableType();
                break;
            case EVENT_ALTER_TABLE:
                AlterTableMessage alterTableMessage = deserializer.getAlterTableMessage(context.dmd.getPayload());
                tableType = alterTableMessage.getTableObjAfter().getTableType();
                writeId = alterTableMessage.getWriteId();
                break;
            case EVENT_ALTER_PARTITION:
                AlterPartitionMessage msg = deserializer.getAlterPartitionMessage(context.dmd.getPayload());
                tableType = msg.getTableObj().getTableType();
                writeId = msg.getWriteId();
                break;
            default:
                break;
        }
        boolean isExternalTable = tableType != null && TableType.EXTERNAL_TABLE.equals(Enum.valueOf(TableType.class, tableType));
        return new Tuple(isExternalTable, writeId);
    } catch (Exception e) {
        LOG.error("failed to determine if the table associated with the event is external or not", e);
        throw new SemanticException(e);
    }
}

Example 3 with AlterTableMessage

use of org.apache.hadoop.hive.metastore.messaging.AlterTableMessage in project hive by apache.

the class ReplicationSemanticAnalyzer method dumpEvent.

private void dumpEvent(NotificationEvent ev, Path evRoot, Path cmRoot) throws Exception {
    long evid = ev.getEventId();
    String evidStr = String.valueOf(evid);
    ReplicationSpec replicationSpec = getNewEventOnlyReplicationSpec(evidStr);
    MessageDeserializer md = MessageFactory.getInstance().getDeserializer();
    switch(ev.getEventType()) {
        case MessageFactory.CREATE_TABLE_EVENT:
            {
                CreateTableMessage ctm = md.getCreateTableMessage(ev.getMessage());
                LOG.info("Processing#{} CREATE_TABLE message : {}", ev.getEventId(), ev.getMessage());
                org.apache.hadoop.hive.metastore.api.Table tobj = ctm.getTableObj();
                if (tobj == null) {
                    LOG.debug("Event#{} was a CREATE_TABLE_EVENT with no table listed");
                    break;
                }
                Table qlMdTable = new Table(tobj);
                if (qlMdTable.isView()) {
                    replicationSpec.setIsMetadataOnly(true);
                }
                Path metaDataPath = new Path(evRoot, EximUtil.METADATA_NAME);
                EximUtil.createExportDump(metaDataPath.getFileSystem(conf), metaDataPath, qlMdTable, null, replicationSpec);
                Path dataPath = new Path(evRoot, "data");
                Iterable<String> files = ctm.getFiles();
                if (files != null) {
                    // encoded filename/checksum of files, write into _files
                    FileSystem fs = dataPath.getFileSystem(conf);
                    Path filesPath = new Path(dataPath, EximUtil.FILES_NAME);
                    BufferedWriter fileListWriter = new BufferedWriter(new OutputStreamWriter(fs.create(filesPath)));
                    try {
                        for (String file : files) {
                            fileListWriter.write(file + "\n");
                        }
                    } finally {
                        fileListWriter.close();
                    }
                }
                (new DumpMetaData(evRoot, DUMPTYPE.EVENT_CREATE_TABLE, evid, evid, cmRoot)).write();
                break;
            }
        case MessageFactory.ADD_PARTITION_EVENT:
            {
                AddPartitionMessage apm = md.getAddPartitionMessage(ev.getMessage());
                LOG.info("Processing#{} ADD_PARTITION message : {}", ev.getEventId(), ev.getMessage());
                Iterable<org.apache.hadoop.hive.metastore.api.Partition> ptns = apm.getPartitionObjs();
                if ((ptns == null) || (!ptns.iterator().hasNext())) {
                    LOG.debug("Event#{} was an ADD_PTN_EVENT with no partitions");
                    break;
                }
                org.apache.hadoop.hive.metastore.api.Table tobj = apm.getTableObj();
                if (tobj == null) {
                    LOG.debug("Event#{} was a ADD_PTN_EVENT with no table listed");
                    break;
                }
                final Table qlMdTable = new Table(tobj);
                Iterable<Partition> qlPtns = Iterables.transform(ptns, new Function<org.apache.hadoop.hive.metastore.api.Partition, Partition>() {

                    @Nullable
                    @Override
                    public Partition apply(@Nullable org.apache.hadoop.hive.metastore.api.Partition input) {
                        if (input == null) {
                            return null;
                        }
                        try {
                            return new Partition(qlMdTable, input);
                        } catch (HiveException e) {
                            throw new IllegalArgumentException(e);
                        }
                    }
                });
                Path metaDataPath = new Path(evRoot, EximUtil.METADATA_NAME);
                EximUtil.createExportDump(metaDataPath.getFileSystem(conf), metaDataPath, qlMdTable, qlPtns, replicationSpec);
                Iterator<PartitionFiles> partitionFilesIter = apm.getPartitionFilesIter().iterator();
                for (Partition qlPtn : qlPtns) {
                    PartitionFiles partitionFiles = partitionFilesIter.next();
                    Iterable<String> files = partitionFiles.getFiles();
                    if (files != null) {
                        // encoded filename/checksum of files, write into _files
                        Path ptnDataPath = new Path(evRoot, qlPtn.getName());
                        FileSystem fs = ptnDataPath.getFileSystem(conf);
                        Path filesPath = new Path(ptnDataPath, EximUtil.FILES_NAME);
                        BufferedWriter fileListWriter = new BufferedWriter(new OutputStreamWriter(fs.create(filesPath)));
                        try {
                            for (String file : files) {
                                fileListWriter.write(file + "\n");
                            }
                        } finally {
                            fileListWriter.close();
                        }
                    }
                }
                (new DumpMetaData(evRoot, DUMPTYPE.EVENT_ADD_PARTITION, evid, evid, cmRoot)).write();
                break;
            }
        case MessageFactory.DROP_TABLE_EVENT:
            {
                LOG.info("Processing#{} DROP_TABLE message : {}", ev.getEventId(), ev.getMessage());
                DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_DROP_TABLE, evid, evid, cmRoot);
                dmd.setPayload(ev.getMessage());
                dmd.write();
                break;
            }
        case MessageFactory.DROP_PARTITION_EVENT:
            {
                LOG.info("Processing#{} DROP_PARTITION message : {}", ev.getEventId(), ev.getMessage());
                DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_DROP_PARTITION, evid, evid, cmRoot);
                dmd.setPayload(ev.getMessage());
                dmd.write();
                break;
            }
        case MessageFactory.ALTER_TABLE_EVENT:
            {
                LOG.info("Processing#{} ALTER_TABLE message : {}", ev.getEventId(), ev.getMessage());
                AlterTableMessage atm = md.getAlterTableMessage(ev.getMessage());
                org.apache.hadoop.hive.metastore.api.Table tobjBefore = atm.getTableObjBefore();
                org.apache.hadoop.hive.metastore.api.Table tobjAfter = atm.getTableObjAfter();
                if (tobjBefore.getDbName().equals(tobjAfter.getDbName()) && tobjBefore.getTableName().equals(tobjAfter.getTableName())) {
                    // regular alter scenario
                    replicationSpec.setIsMetadataOnly(true);
                    Table qlMdTableAfter = new Table(tobjAfter);
                    Path metaDataPath = new Path(evRoot, EximUtil.METADATA_NAME);
                    EximUtil.createExportDump(metaDataPath.getFileSystem(conf), metaDataPath, qlMdTableAfter, null, replicationSpec);
                    DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_ALTER_TABLE, evid, evid, cmRoot);
                    dmd.setPayload(ev.getMessage());
                    dmd.write();
                } else {
                    // rename scenario
                    DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_RENAME_TABLE, evid, evid, cmRoot);
                    dmd.setPayload(ev.getMessage());
                    dmd.write();
                }
                break;
            }
        case MessageFactory.ALTER_PARTITION_EVENT:
            {
                LOG.info("Processing#{} ALTER_PARTITION message : {}", ev.getEventId(), ev.getMessage());
                AlterPartitionMessage apm = md.getAlterPartitionMessage(ev.getMessage());
                org.apache.hadoop.hive.metastore.api.Table tblObj = apm.getTableObj();
                org.apache.hadoop.hive.metastore.api.Partition pobjBefore = apm.getPtnObjBefore();
                org.apache.hadoop.hive.metastore.api.Partition pobjAfter = apm.getPtnObjAfter();
                boolean renameScenario = false;
                Iterator<String> beforeValIter = pobjBefore.getValuesIterator();
                Iterator<String> afterValIter = pobjAfter.getValuesIterator();
                for (; beforeValIter.hasNext(); ) {
                    if (!beforeValIter.next().equals(afterValIter.next())) {
                        renameScenario = true;
                        break;
                    }
                }
                if (!renameScenario) {
                    // regular partition alter
                    replicationSpec.setIsMetadataOnly(true);
                    Table qlMdTable = new Table(tblObj);
                    List<Partition> qlPtns = new ArrayList<Partition>();
                    qlPtns.add(new Partition(qlMdTable, pobjAfter));
                    Path metaDataPath = new Path(evRoot, EximUtil.METADATA_NAME);
                    EximUtil.createExportDump(metaDataPath.getFileSystem(conf), metaDataPath, qlMdTable, qlPtns, replicationSpec);
                    DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_ALTER_PARTITION, evid, evid, cmRoot);
                    dmd.setPayload(ev.getMessage());
                    dmd.write();
                    break;
                } else {
                    // rename scenario
                    DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_RENAME_PARTITION, evid, evid, cmRoot);
                    dmd.setPayload(ev.getMessage());
                    dmd.write();
                    break;
                }
            }
        case MessageFactory.INSERT_EVENT:
            {
                InsertMessage insertMsg = md.getInsertMessage(ev.getMessage());
                String dbName = insertMsg.getDB();
                String tblName = insertMsg.getTable();
                org.apache.hadoop.hive.metastore.api.Table tobj = db.getMSC().getTable(dbName, tblName);
                Table qlMdTable = new Table(tobj);
                Map<String, String> partSpec = insertMsg.getPartitionKeyValues();
                List<Partition> qlPtns = null;
                if (qlMdTable.isPartitioned() && !partSpec.isEmpty()) {
                    qlPtns = Arrays.asList(db.getPartition(qlMdTable, partSpec, false));
                }
                Path metaDataPath = new Path(evRoot, EximUtil.METADATA_NAME);
                // Mark the replication type as insert into to avoid overwrite while import
                replicationSpec.setIsInsert(true);
                EximUtil.createExportDump(metaDataPath.getFileSystem(conf), metaDataPath, qlMdTable, qlPtns, replicationSpec);
                Iterable<String> files = insertMsg.getFiles();
                if (files != null) {
                    // encoded filename/checksum of files, write into _files
                    Path dataPath = new Path(evRoot, EximUtil.DATA_PATH_NAME);
                    Path filesPath = new Path(dataPath, EximUtil.FILES_NAME);
                    FileSystem fs = dataPath.getFileSystem(conf);
                    BufferedWriter fileListWriter = new BufferedWriter(new OutputStreamWriter(fs.create(filesPath)));
                    try {
                        for (String file : files) {
                            fileListWriter.write(file + "\n");
                        }
                    } finally {
                        fileListWriter.close();
                    }
                }
                LOG.info("Processing#{} INSERT message : {}", ev.getEventId(), ev.getMessage());
                DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_INSERT, evid, evid, cmRoot);
                dmd.setPayload(ev.getMessage());
                dmd.write();
                break;
            }
        // TODO : handle other event types
        default:
            LOG.info("Dummy processing#{} message : {}", ev.getEventId(), ev.getMessage());
            DumpMetaData dmd = new DumpMetaData(evRoot, DUMPTYPE.EVENT_UNKNOWN, evid, evid, cmRoot);
            dmd.setPayload(ev.getMessage());
            dmd.write();
            break;
    }
}

Example 4 with AlterTableMessage

use of org.apache.hadoop.hive.metastore.messaging.AlterTableMessage in project hive by apache.

the class TestDbNotificationListener method alterTable.

@Test
public void alterTable() throws Exception {
    String defaultDbName = "default";
    String tblName = "altertabletbl";
    String tblOwner = "me";
    String serdeLocation = testTempDir;
    FieldSchema col1 = new FieldSchema("col1", "int", "no comment");
    FieldSchema col2 = new FieldSchema("col2", "int", "no comment");
    List<FieldSchema> cols = new ArrayList<FieldSchema>();
    cols.add(col1);
    SerDeInfo serde = new SerDeInfo("serde", "seriallib", null);
    StorageDescriptor sd = new StorageDescriptor(cols, serdeLocation, "input", "output", false, 0, serde, null, null, emptyParameters);
    Table table = new Table(tblName, defaultDbName, tblOwner, startTime, startTime, 0, sd, new ArrayList<FieldSchema>(), emptyParameters, null, null, null);
    // Event 1
    msClient.createTable(table);
    cols.add(col2);
    table = new Table(tblName, defaultDbName, tblOwner, startTime, startTime, 0, sd, new ArrayList<FieldSchema>(), emptyParameters, null, null, null);
    // Event 2
    msClient.alter_table(defaultDbName, tblName, table);
    // Get notifications from metastore
    NotificationEventResponse rsp = msClient.getNextNotification(firstEventId, 0, null);
    assertEquals(2, rsp.getEventsSize());
    NotificationEvent event = rsp.getEvents().get(1);
    assertEquals(firstEventId + 2, event.getEventId());
    assertTrue(event.getEventTime() >= startTime);
    assertEquals(EventType.ALTER_TABLE.toString(), event.getEventType());
    assertEquals(defaultDbName, event.getDbName());
    assertEquals(tblName, event.getTableName());
    AlterTableMessage alterTableMessage = md.getAlterTableMessage(event.getMessage());
    assertEquals(table, alterTableMessage.getTableObjAfter());
    assertEquals(TableType.MANAGED_TABLE.toString(), alterTableMessage.getTableType());
    // Verify the eventID was passed to the non-transactional listener
    MockMetaStoreEventListener.popAndVerifyLastEventId(EventType.ALTER_TABLE, firstEventId + 2);
    MockMetaStoreEventListener.popAndVerifyLastEventId(EventType.CREATE_TABLE, firstEventId + 1);
    // When hive.metastore.transactional.event.listeners is set,
    // a failed event should not create a new notification
    DummyRawStoreFailEvent.setEventSucceed(false);
    try {
        msClient.alter_table(defaultDbName, tblName, table);
        fail("Error: alter table should've failed");
    } catch (Exception ex) {
    // expected
    }
    rsp = msClient.getNextNotification(firstEventId, 0, null);
    assertEquals(2, rsp.getEventsSize());
    testEventCounts(defaultDbName, firstEventId, null, null, 2);
}

Example 5 with AlterTableMessage

use of org.apache.hadoop.hive.metastore.messaging.AlterTableMessage in project hive by apache.

the class RenameTableHandler method handle.

@Override
public List<Task<?>> handle(Context context) throws SemanticException {
    AlterTableMessage msg = deserializer.getAlterTableMessage(context.dmd.getPayload());
    try {
        Table tableObjBefore = msg.getTableObjBefore();
        Table tableObjAfter = msg.getTableObjAfter();
        String oldDbName = tableObjBefore.getDbName();
        String newDbName = tableObjAfter.getDbName();
        if (!context.isDbNameEmpty()) {
            // newDbName must be the same
            if (!oldDbName.equalsIgnoreCase(newDbName)) {
                throw new SemanticException("Cannot replicate an event renaming a table across" + " databases into a db level load " + oldDbName + "->" + newDbName);
            } else {
                // both were the same, and can be replaced by the new db we're loading into.
                oldDbName = context.dbName;
                newDbName = context.dbName;
            }
        }
        TableName oldName = TableName.fromString(tableObjBefore.getTableName(), null, oldDbName);
        TableName newName = TableName.fromString(tableObjAfter.getTableName(), null, newDbName);
        ReplicationSpec replicationSpec = context.eventOnlyReplicationSpec();
        AlterTableRenameDesc renameTableDesc = new AlterTableRenameDesc(oldName, replicationSpec, false, newName.getNotEmptyDbTable());
        renameTableDesc.setWriteId(msg.getWriteId());
        Task<DDLWork> renameTableTask = TaskFactory.get(new DDLWork(readEntitySet, writeEntitySet, renameTableDesc, true, context.getDumpDirectory(), context.getMetricCollector()), context.hiveConf);
        context.log.debug("Added rename table task : {}:{}->{}", renameTableTask.getId(), oldName.getNotEmptyDbTable(), newName.getNotEmptyDbTable());
        // oldDbName and newDbName *will* be the same if we're here
        updatedMetadata.set(context.dmd.getEventTo().toString(), newDbName, tableObjAfter.getTableName(), null);
        // if so. If that should ever change, this will need reworking.
        return ReplUtils.addChildTask(renameTableTask);
    } catch (Exception e) {
        throw (e instanceof SemanticException) ? (SemanticException) e : new SemanticException("Error reading message members", e);
    }
}