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

Example 16 with Warehouse

use of org.apache.hadoop.hive.metastore.Warehouse in project hive by apache.

the class BasicStatsTask method aggregateStats.

private int aggregateStats(Hive db) {
    StatsAggregator statsAggregator = null;
    int ret = 0;
    StatsCollectionContext scc = null;
    EnvironmentContext environmentContext = null;
    environmentContext = new EnvironmentContext();
    environmentContext.putToProperties(StatsSetupConst.DO_NOT_UPDATE_STATS, StatsSetupConst.TRUE);
    try {
        // Stats setup:
        final Warehouse wh = new Warehouse(conf);
        if (!getWork().getNoStatsAggregator() && !getWork().isNoScanAnalyzeCommand()) {
            try {
                scc = getContext();
                statsAggregator = createStatsAggregator(scc, conf);
            } catch (HiveException e) {
                if (HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVE_STATS_RELIABLE)) {
                    throw e;
                }
                console.printError(ErrorMsg.STATS_SKIPPING_BY_ERROR.getErrorCodedMsg(e.toString()));
            }
        }
        List<Partition> partitions = getPartitionsList(db);
        String tableFullName = table.getDbName() + "." + table.getTableName();
        List<Partish> partishes = new ArrayList<>();
        if (partitions == null) {
            Partish p;
            partishes.add(p = new Partish.PTable(table));
            BasicStatsProcessor basicStatsProcessor = new BasicStatsProcessor(p, work, conf, followedColStats);
            basicStatsProcessor.collectFileStatus(wh, conf);
            Table res = (Table) basicStatsProcessor.process(statsAggregator);
            if (res == null) {
                return 0;
            }
            db.alterTable(tableFullName, res, environmentContext, true);
            TransactionalStatsProcessor transactionalStatsProcessor = new TransactionalStatsProcessor(db, p);
            transactionalStatsProcessor.process(statsAggregator);
            if (conf.getBoolVar(ConfVars.TEZ_EXEC_SUMMARY)) {
                console.printInfo("Table " + tableFullName + " stats: [" + toString(p.getPartParameters()) + ']');
            }
            LOG.info("Table " + tableFullName + " stats: [" + toString(p.getPartParameters()) + ']');
        } else {
            // Partitioned table:
            // Need to get the old stats of the partition
            // and update the table stats based on the old and new stats.
            List<Partition> updates = new ArrayList<Partition>();
            final ExecutorService pool = buildBasicStatsExecutor();
            final List<Future<Void>> futures = Lists.newLinkedList();
            List<BasicStatsProcessor> processors = Lists.newLinkedList();
            List<TransactionalStatsProcessor> transactionalStatsProcessors = Lists.newLinkedList();
            try {
                for (final Partition partn : partitions) {
                    Partish p;
                    BasicStatsProcessor bsp = new BasicStatsProcessor(p = new Partish.PPart(table, partn), work, conf, followedColStats);
                    processors.add(bsp);
                    transactionalStatsProcessors.add(new TransactionalStatsProcessor(db, p));
                    futures.add(pool.submit(new Callable<Void>() {

                        @Override
                        public Void call() throws Exception {
                            bsp.collectFileStatus(wh, conf);
                            return null;
                        }
                    }));
                }
                pool.shutdown();
                for (Future<Void> future : futures) {
                    future.get();
                }
            } catch (InterruptedException e) {
                LOG.debug("Cancelling " + futures.size() + " file stats lookup tasks");
                // cancel other futures
                for (Future future : futures) {
                    future.cancel(true);
                }
                // Fail the query if the stats are supposed to be reliable
                if (work.isStatsReliable()) {
                    ret = 1;
                }
            } finally {
                if (pool != null) {
                    pool.shutdownNow();
                }
                LOG.debug("Finished getting file stats of all partitions!");
            }
            for (BasicStatsProcessor basicStatsProcessor : processors) {
                Object res = basicStatsProcessor.process(statsAggregator);
                if (res == null) {
                    LOG.info("Partition " + basicStatsProcessor.partish.getPartition().getSpec() + " stats: [0]");
                    continue;
                }
                updates.add((Partition) res);
                if (conf.getBoolVar(ConfVars.TEZ_EXEC_SUMMARY)) {
                    console.printInfo("Partition " + basicStatsProcessor.partish.getPartition().getSpec() + " stats: [" + toString(basicStatsProcessor.partish.getPartParameters()) + ']');
                }
                LOG.info("Partition " + basicStatsProcessor.partish.getPartition().getSpec() + " stats: [" + toString(basicStatsProcessor.partish.getPartParameters()) + ']');
            }
            if (!updates.isEmpty()) {
                db.alterPartitions(tableFullName, updates, environmentContext, true);
            }
            for (TransactionalStatsProcessor transactionalStatsProcessor : transactionalStatsProcessors) {
                transactionalStatsProcessor.process(statsAggregator);
            }
            if (work.isStatsReliable() && updates.size() != processors.size()) {
                LOG.info("Stats should be reliadble...however seems like there were some issue.. => ret 1");
                ret = 1;
            }
        }
    } catch (Exception e) {
        console.printInfo("[Warning] could not update stats.", "Failed with exception " + e.getMessage() + "\n" + StringUtils.stringifyException(e));
        // Fail the query if the stats are supposed to be reliable
        if (work.isStatsReliable()) {
            ret = 1;
        }
    } finally {
        if (statsAggregator != null) {
            statsAggregator.closeConnection(scc);
        }
    }
    // anything else indicates failure
    return ret;
}

Example 17 with Warehouse

use of org.apache.hadoop.hive.metastore.Warehouse in project hive by apache.

the class CreateMaterializedViewOperation method execute.

@Override
public int execute() throws HiveException {
    Table oldview = context.getDb().getTable(desc.getViewName(), false);
    if (oldview != null) {
        if (desc.getIfNotExists()) {
            return 0;
        }
        // Materialized View already exists, thus we should be replacing
        throw new HiveException(ErrorMsg.TABLE_ALREADY_EXISTS.getMsg(desc.getViewName()));
    } else {
        // We create new view
        Table tbl = desc.toTable(context.getConf());
        // We set the signature for the view if it is a materialized view
        if (tbl.isMaterializedView()) {
            Set<SourceTable> sourceTables = new HashSet<>(desc.getTablesUsed().size());
            for (TableName tableName : desc.getTablesUsed()) {
                sourceTables.add(context.getDb().getTable(tableName).createSourceTable());
            }
            MaterializedViewMetadata metadata = new MaterializedViewMetadata(MetaStoreUtils.getDefaultCatalog(context.getConf()), tbl.getDbName(), tbl.getTableName(), sourceTables, context.getConf().get(ValidTxnWriteIdList.VALID_TABLES_WRITEIDS_KEY));
            tbl.setMaterializedViewMetadata(metadata);
        }
        context.getDb().createTable(tbl, desc.getIfNotExists());
        DDLUtils.addIfAbsentByName(new WriteEntity(tbl, WriteEntity.WriteType.DDL_NO_LOCK), context.getWork().getOutputs());
        // set lineage info
        DataContainer dc = new DataContainer(tbl.getTTable());
        Map<String, String> tblProps = tbl.getTTable().getParameters();
        Path tlocation = null;
        try {
            Warehouse wh = new Warehouse(context.getConf());
            tlocation = wh.getDefaultTablePath(context.getDb().getDatabase(tbl.getDbName()), tbl.getTableName(), tblProps == null || !AcidUtils.isTablePropertyTransactional(tblProps));
        } catch (MetaException e) {
            throw new HiveException(e);
        }
        context.getQueryState().getLineageState().setLineage(tlocation, dc, tbl.getCols());
    }
    return 0;
}

Example 18 with Warehouse

use of org.apache.hadoop.hive.metastore.Warehouse in project hive by apache.

the class SemanticAnalyzer method getMetaData.

@SuppressWarnings("nls")
private void getMetaData(QB qb, ReadEntity parentInput) throws HiveException {
    LOG.info("Get metadata for source tables");
    // Go over the tables and populate the related structures.
    // We have to materialize the table alias list since we might
    // modify it in the middle for view rewrite.
    List<String> tabAliases = new ArrayList<String>(qb.getTabAliases());
    // Keep track of view alias to view name and read entity
    // For eg: for a query like 'select * from V3', where V3 -> V2, V2 -> V1, V1 -> T
    // keeps track of full view name and read entity corresponding to alias V3, V3:V2, V3:V2:V1.
    // This is needed for tracking the dependencies for inputs, along with their parents.
    Map<String, Pair<String, ReadEntity>> aliasToViewInfo = new HashMap<String, Pair<String, ReadEntity>>();
    /*
     * used to capture view to SQ conversions. This is used to check for
     * recursive CTE invocations.
     */
    Map<String, String> sqAliasToCTEName = new HashMap<String, String>();
    for (String alias : tabAliases) {
        String tabName = qb.getTabNameForAlias(alias);
        String cteName = tabName.toLowerCase();
        // Get table details from tabNameToTabObject cache
        Table tab = aliasToCTEs.containsKey(tabName) ? null : getTableObjectByName(tabName, false);
        if (tab != null) {
            Table newTab = tab.makeCopy();
            tab = newTab;
        }
        if (tab == null || tab.getDbName().equals(SessionState.get().getCurrentDatabase())) {
            Table materializedTab = ctx.getMaterializedTable(cteName);
            if (materializedTab == null) {
                // we first look for this alias from CTE, and then from catalog.
                CTEClause cte = findCTEFromName(qb, cteName);
                if (cte != null) {
                    if (!cte.materialize) {
                        addCTEAsSubQuery(qb, cteName, alias);
                        sqAliasToCTEName.put(alias, cteName);
                        continue;
                    }
                    tab = materializeCTE(cteName, cte);
                }
            } else {
                tab = materializedTab;
            }
        }
        if (tab == null) {
            if (tabName.equals(DUMMY_DATABASE + "." + DUMMY_TABLE)) {
                continue;
            }
            ASTNode src = qb.getParseInfo().getSrcForAlias(alias);
            if (null != src) {
                if (src.getChildCount() == 3) {
                    throw new SemanticException(ErrorMsg.INVALID_TABLE.getMsg() + " '" + src.getChild(2).getText() + "'");
                }
                throw new SemanticException(ASTErrorUtils.getMsg(ErrorMsg.INVALID_TABLE.getMsg(), src));
            } else {
                throw new SemanticException(ErrorMsg.INVALID_TABLE.getMsg(alias));
            }
        }
        Pair<String, String> asOf = qb.getAsOfForAlias(alias);
        if (asOf != null) {
            if (!Optional.ofNullable(tab.getStorageHandler()).map(HiveStorageHandler::isTimeTravelAllowed).orElse(false)) {
                throw new SemanticException(ErrorMsg.TIME_TRAVEL_NOT_ALLOWED, alias);
            }
            tab.setAsOfVersion(asOf.getLeft());
            tab.setAsOfTimestamp(asOf.getRight());
        }
        if (tab.isView()) {
            if (qb.getParseInfo().isAnalyzeCommand()) {
                throw new SemanticException(ErrorMsg.ANALYZE_VIEW.getMsg());
            }
            String fullViewName = tab.getFullyQualifiedName();
            // Prevent view cycles
            if (viewsExpanded.contains(fullViewName)) {
                throw new SemanticException("Recursive view " + fullViewName + " detected (cycle: " + StringUtils.join(viewsExpanded, " -> ") + " -> " + fullViewName + ").");
            }
            replaceViewReferenceWithDefinition(qb, tab, tabName, alias);
            // If the view is Inside another view, it should have at least one parent
            if (qb.isInsideView() && parentInput == null) {
                parentInput = PlanUtils.getParentViewInfo(getAliasId(alias, qb), viewAliasToInput);
            }
            ReadEntity viewInput = new ReadEntity(tab, parentInput, !qb.isInsideView());
            viewInput = PlanUtils.addInput(inputs, viewInput);
            aliasToViewInfo.put(alias, Pair.of(fullViewName, viewInput));
            String aliasId = getAliasId(alias, qb);
            if (aliasId != null) {
                aliasId = aliasId.replace(SemanticAnalyzer.SUBQUERY_TAG_1, "").replace(SemanticAnalyzer.SUBQUERY_TAG_2, "");
            }
            viewAliasToInput.put(aliasId, viewInput);
            continue;
        }
        if (!InputFormat.class.isAssignableFrom(tab.getInputFormatClass())) {
            throw new SemanticException(generateErrorMessage(qb.getParseInfo().getSrcForAlias(alias), ErrorMsg.INVALID_INPUT_FORMAT_TYPE.getMsg()));
        }
        qb.getMetaData().setSrcForAlias(alias, tab);
        if (qb.getParseInfo().isAnalyzeCommand()) {
            // allow partial partition specification for nonscan since noscan is fast.
            TableSpec ts = new TableSpec(db, conf, (ASTNode) ast.getChild(0), true, this.noscan);
            if (ts.specType == SpecType.DYNAMIC_PARTITION) {
                // dynamic partitions
                try {
                    ts.partitions = db.getPartitionsByNames(ts.tableHandle, ts.partSpec);
                } catch (HiveException e) {
                    throw new SemanticException(generateErrorMessage(qb.getParseInfo().getSrcForAlias(alias), "Cannot get partitions for " + ts.partSpec), e);
                }
            }
            tab.setTableSpec(ts);
            qb.getParseInfo().addTableSpec(alias, ts);
        }
        ReadEntity parentViewInfo = PlanUtils.getParentViewInfo(getAliasId(alias, qb), viewAliasToInput);
        // Temporary tables created during the execution are not the input sources
        if (!PlanUtils.isValuesTempTable(alias)) {
            PlanUtils.addInput(inputs, new ReadEntity(tab, parentViewInfo, parentViewInfo == null), mergeIsDirect);
        }
    }
    LOG.info("Get metadata for subqueries");
    // Go over the subqueries and getMetaData for these
    for (String alias : qb.getSubqAliases()) {
        boolean wasView = aliasToViewInfo.containsKey(alias);
        boolean wasCTE = sqAliasToCTEName.containsKey(alias);
        ReadEntity newParentInput = null;
        if (wasView) {
            viewsExpanded.add(aliasToViewInfo.get(alias).getLeft());
            newParentInput = aliasToViewInfo.get(alias).getRight();
        } else if (wasCTE) {
            ctesExpanded.add(sqAliasToCTEName.get(alias));
        }
        QBExpr qbexpr = qb.getSubqForAlias(alias);
        getMetaData(qbexpr, newParentInput);
        if (wasView) {
            viewsExpanded.remove(viewsExpanded.size() - 1);
        } else if (wasCTE) {
            ctesExpanded.remove(ctesExpanded.size() - 1);
        }
    }
    RowFormatParams rowFormatParams = new RowFormatParams();
    StorageFormat storageFormat = new StorageFormat(conf);
    LOG.info("Get metadata for destination tables");
    // Go over all the destination structures and populate the related
    // metadata
    QBParseInfo qbp = qb.getParseInfo();
    for (String name : qbp.getClauseNamesForDest()) {
        ASTNode ast = qbp.getDestForClause(name);
        switch(ast.getToken().getType()) {
            case HiveParser.TOK_TAB:
                {
                    TableSpec ts = new TableSpec(db, conf, ast);
                    if (ts.tableHandle.isView() || (mvRebuildMode == MaterializationRebuildMode.NONE && ts.tableHandle.isMaterializedView())) {
                        throw new SemanticException(ErrorMsg.DML_AGAINST_VIEW.getMsg());
                    }
                    Class<?> outputFormatClass = ts.tableHandle.getOutputFormatClass();
                    if (!ts.tableHandle.isNonNative() && !HiveOutputFormat.class.isAssignableFrom(outputFormatClass)) {
                        throw new SemanticException(ASTErrorUtils.getMsg(ErrorMsg.INVALID_OUTPUT_FORMAT_TYPE.getMsg(), ast, "The class is " + outputFormatClass.toString()));
                    }
                    boolean isTableWrittenTo = qb.getParseInfo().isInsertIntoTable(ts.tableHandle.getDbName(), ts.tableHandle.getTableName());
                    isTableWrittenTo |= (qb.getParseInfo().getInsertOverwriteTables().get(getUnescapedName((ASTNode) ast.getChild(0), ts.tableHandle.getDbName()).toLowerCase()) != null);
                    assert isTableWrittenTo : "Inconsistent data structure detected: we are writing to " + ts.tableHandle + " in " + name + " but it's not in isInsertIntoTable() or getInsertOverwriteTables()";
                    // Disallow update and delete on non-acid tables
                    boolean isFullAcid = AcidUtils.isFullAcidTable(ts.tableHandle);
                    if ((updating(name) || deleting(name)) && !isFullAcid) {
                        if (!AcidUtils.isInsertOnlyTable(ts.tableHandle)) {
                            // here, it means the table itself doesn't support it.
                            throw new SemanticException(ErrorMsg.ACID_OP_ON_NONACID_TABLE, ts.getTableName().getTable());
                        } else {
                            throw new SemanticException(ErrorMsg.ACID_OP_ON_INSERTONLYTRAN_TABLE, ts.getTableName().getTable());
                        }
                    }
                    // but whether the table itself is partitioned is not know.
                    if (ts.specType != SpecType.STATIC_PARTITION) {
                        // This is a table or dynamic partition
                        qb.getMetaData().setDestForAlias(name, ts.tableHandle);
                        // has dynamic as well as static partitions
                        if (ts.partSpec != null && ts.partSpec.size() > 0) {
                            qb.getMetaData().setPartSpecForAlias(name, ts.partSpec);
                        }
                    } else {
                        // This is a partition
                        qb.getMetaData().setDestForAlias(name, ts.partHandle);
                    }
                    if (HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
                        // Add the table spec for the destination table.
                        qb.getParseInfo().addTableSpec(ts.getTableName().getTable().toLowerCase(), ts);
                    }
                    break;
                }
            case HiveParser.TOK_DIR:
                {
                    // This is a dfs file
                    String fname = stripQuotes(ast.getChild(0).getText());
                    if ((!qb.getParseInfo().getIsSubQ()) && (((ASTNode) ast.getChild(0)).getToken().getType() == HiveParser.TOK_TMP_FILE)) {
                        if (qb.isCTAS() || qb.isMaterializedView()) {
                            qb.setIsQuery(false);
                            ctx.setResDir(null);
                            ctx.setResFile(null);
                            Path location;
                            // If the CTAS query does specify a location, use the table location, else use the db location
                            if (qb.isMaterializedView() && qb.getViewDesc() != null && qb.getViewDesc().getLocation() != null) {
                                location = new Path(qb.getViewDesc().getLocation());
                            } else if (qb.isCTAS() && qb.getTableDesc() != null && qb.getTableDesc().getLocation() != null) {
                                location = new Path(qb.getTableDesc().getLocation());
                            } else {
                                // allocate a temporary output dir on the location of the table
                                String tableName = getUnescapedName((ASTNode) ast.getChild(0));
                                String[] names = Utilities.getDbTableName(tableName);
                                try {
                                    Warehouse wh = new Warehouse(conf);
                                    // Use destination table's db location.
                                    String destTableDb = qb.getTableDesc() != null ? qb.getTableDesc().getDatabaseName() : null;
                                    if (destTableDb == null) {
                                        destTableDb = names[0];
                                    }
                                    boolean useExternal = false;
                                    if (qb.isMaterializedView()) {
                                        useExternal = !AcidUtils.isTransactionalView(qb.getViewDesc()) && !makeAcid();
                                    } else {
                                        useExternal = (qb.getTableDesc() == null || qb.getTableDesc().isTemporary() || qb.getTableDesc().isExternal() || !makeAcid());
                                    }
                                    if (useExternal) {
                                        location = wh.getDatabaseExternalPath(db.getDatabase(destTableDb));
                                    } else {
                                        location = wh.getDatabaseManagedPath(db.getDatabase(destTableDb));
                                    }
                                } catch (MetaException e) {
                                    throw new SemanticException(e);
                                }
                            }
                            try {
                                CreateTableDesc tblDesc = qb.getTableDesc();
                                if (tblDesc != null && tblDesc.isTemporary() && AcidUtils.isInsertOnlyTable(tblDesc.getTblProps(), true)) {
                                    fname = FileUtils.makeQualified(location, conf).toString();
                                } else {
                                    fname = ctx.getExtTmpPathRelTo(FileUtils.makeQualified(location, conf)).toString();
                                }
                            } catch (Exception e) {
                                throw new SemanticException(generateErrorMessage(ast, "Error creating temporary folder on: " + location.toString()), e);
                            }
                            if (HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
                                TableSpec ts = new TableSpec(db, conf, this.ast);
                                // Add the table spec for the destination table.
                                qb.getParseInfo().addTableSpec(ts.getTableName().getTable().toLowerCase(), ts);
                            }
                        } else {
                            // This is the only place where isQuery is set to true; it defaults to false.
                            qb.setIsQuery(true);
                            Path stagingPath = getStagingDirectoryPathname(qb);
                            fname = stagingPath.toString();
                            ctx.setResDir(stagingPath);
                        }
                    }
                    boolean isDfsFile = true;
                    if (ast.getChildCount() >= 2 && ast.getChild(1).getText().toLowerCase().equals("local")) {
                        isDfsFile = false;
                    }
                    // Set the destination for the SELECT query inside the CTAS
                    qb.getMetaData().setDestForAlias(name, fname, isDfsFile);
                    CreateTableDesc directoryDesc = new CreateTableDesc();
                    boolean directoryDescIsSet = false;
                    int numCh = ast.getChildCount();
                    for (int num = 1; num < numCh; num++) {
                        ASTNode child = (ASTNode) ast.getChild(num);
                        if (child != null) {
                            if (storageFormat.fillStorageFormat(child)) {
                                directoryDesc.setInputFormat(storageFormat.getInputFormat());
                                directoryDesc.setOutputFormat(storageFormat.getOutputFormat());
                                directoryDesc.setSerName(storageFormat.getSerde());
                                directoryDescIsSet = true;
                                continue;
                            }
                            switch(child.getToken().getType()) {
                                case HiveParser.TOK_TABLEROWFORMAT:
                                    rowFormatParams.analyzeRowFormat(child);
                                    directoryDesc.setFieldDelim(rowFormatParams.fieldDelim);
                                    directoryDesc.setLineDelim(rowFormatParams.lineDelim);
                                    directoryDesc.setCollItemDelim(rowFormatParams.collItemDelim);
                                    directoryDesc.setMapKeyDelim(rowFormatParams.mapKeyDelim);
                                    directoryDesc.setFieldEscape(rowFormatParams.fieldEscape);
                                    directoryDesc.setNullFormat(rowFormatParams.nullFormat);
                                    directoryDescIsSet = true;
                                    break;
                                case HiveParser.TOK_TABLESERIALIZER:
                                    ASTNode serdeChild = (ASTNode) child.getChild(0);
                                    storageFormat.setSerde(unescapeSQLString(serdeChild.getChild(0).getText()));
                                    directoryDesc.setSerName(storageFormat.getSerde());
                                    if (serdeChild.getChildCount() > 1) {
                                        directoryDesc.setSerdeProps(new HashMap<String, String>());
                                        readProps((ASTNode) serdeChild.getChild(1).getChild(0), directoryDesc.getSerdeProps());
                                    }
                                    directoryDescIsSet = true;
                                    break;
                            }
                        }
                    }
                    if (directoryDescIsSet) {
                        qb.setDirectoryDesc(directoryDesc);
                    }
                    break;
                }
            default:
                throw new SemanticException(generateErrorMessage(ast, "Unknown Token Type " + ast.getToken().getType()));
        }
    }
}

Example 19 with Warehouse

use of org.apache.hadoop.hive.metastore.Warehouse in project hive by apache.

the class TaskCompiler method getDefaultCtasLocation.

private Path getDefaultCtasLocation(final ParseContext pCtx) throws SemanticException {
    try {
        String protoName = null;
        boolean isExternal = false;
        if (pCtx.getQueryProperties().isCTAS()) {
            protoName = pCtx.getCreateTable().getDbTableName();
            isExternal = pCtx.getCreateTable().isExternal();
        } else if (pCtx.getQueryProperties().isMaterializedView()) {
            protoName = pCtx.getCreateViewDesc().getViewName();
        }
        String[] names = Utilities.getDbTableName(protoName);
        if (!db.databaseExists(names[0])) {
            throw new SemanticException("ERROR: The database " + names[0] + " does not exist.");
        }
        Warehouse wh = new Warehouse(conf);
        return wh.getDefaultTablePath(db.getDatabase(names[0]), names[1], isExternal);
    } catch (HiveException e) {
        throw new SemanticException(e);
    } catch (MetaException e) {
        throw new SemanticException(e);
    }
}

Example 20 with Warehouse

use of org.apache.hadoop.hive.metastore.Warehouse in project hive by apache.

the class StorageBasedAuthorizationProvider method initWh.

/**
 * Make sure that the warehouse variable is set up properly.
 * @throws MetaException if unable to instantiate
 */
private void initWh() throws MetaException, HiveException {
    if (wh == null) {
        if (!isRunFromMetaStore) {
            // Note, although HiveProxy has a method that allows us to check if we're being
            // called from the metastore or from the client, we don't have an initialized HiveProxy
            // till we explicitly initialize it as being from the client side. So, we have a
            // chicken-and-egg problem. So, we now track whether or not we're running from client-side
            // in the SBAP itself.
            hive_db = new HiveProxy(Hive.get(getConf(), StorageBasedAuthorizationProvider.class));
            this.wh = new Warehouse(getConf());
            if (this.wh == null) {
                // If wh is still null after just having initialized it, bail out - something's very wrong.
                throw new IllegalStateException("Unable to initialize Warehouse from clientside.");
            }
        } else {
            // this means handler.getWh() is returning null. Error out.
            throw new IllegalStateException("Uninitialized Warehouse from MetastoreHandler");
        }
    }
}