/**
* Set up the root fragment (which will run locally), and submit it for execution.
*
* @param rootFragment
* @param rootOperator
* @throws ExecutionSetupException
*/
private void setupRootFragment(final PlanFragment rootFragment, final FragmentRoot rootOperator)
throws ExecutionSetupException {
@SuppressWarnings("resource")
final FragmentContext rootContext =
new FragmentContext(
drillbitContext,
rootFragment,
queryContext,
initiatingClient,
drillbitContext.getFunctionImplementationRegistry());
@SuppressWarnings("resource")
final IncomingBuffers buffers = new IncomingBuffers(rootFragment, rootContext);
rootContext.setBuffers(buffers);
queryManager.addFragmentStatusTracker(rootFragment, true);
final ControlTunnel tunnel =
drillbitContext.getController().getTunnel(queryContext.getCurrentEndpoint());
final FragmentExecutor rootRunner =
new FragmentExecutor(
rootContext,
rootFragment,
new FragmentStatusReporter(rootContext, tunnel),
rootOperator);
final RootFragmentManager fragmentManager =
new RootFragmentManager(rootFragment.getHandle(), buffers, rootRunner);
if (buffers.isDone()) {
// if we don't have to wait for any incoming data, start the fragment runner.
bee.addFragmentRunner(fragmentManager.getRunnable());
} else {
// if we do, record the fragment manager in the workBus.
drillbitContext.getWorkBus().addFragmentManager(fragmentManager);
}
}
/**
* Set up the root fragment (which will run locally), and submit it for execution.
*
* @param rootFragment
* @param rootOperator
* @throws ExecutionSetupException
*/
private void setupRootFragment(final PlanFragment rootFragment, final FragmentRoot rootOperator)
throws ExecutionSetupException {
@SuppressWarnings("resource")
final FragmentContext rootContext =
new FragmentContext(
drillbitContext,
rootFragment,
queryContext,
initiatingClient,
drillbitContext.getFunctionImplementationRegistry());
@SuppressWarnings("resource")
final IncomingBuffers buffers = new IncomingBuffers(rootFragment, rootContext);
rootContext.setBuffers(buffers);
queryManager.addFragmentStatusTracker(rootFragment, true);
rootRunner =
new FragmentExecutor(
rootContext,
rootFragment,
queryManager.newRootStatusHandler(rootContext, drillbitContext),
rootOperator);
final RootFragmentManager fragmentManager =
new RootFragmentManager(rootFragment.getHandle(), buffers, rootRunner);
if (buffers.isDone()) {
// if we don't have to wait for any incoming data, start the fragment runner.
bee.addFragmentRunner(fragmentManager.getRunnable());
} else {
// if we do, record the fragment manager in the workBus.
// TODO aren't we managing our own work? What does this do? It looks like this will never get
// run
drillbitContext.getWorkBus().addFragmentManager(fragmentManager);
}
}
@Test
public void testSubstringNegative(
@Injectable final DrillbitContext bitContext,
@Injectable UserServer.UserClientConnection connection)
throws Throwable {
new NonStrictExpectations() {
{
bitContext.getMetrics();
result = new MetricRegistry();
bitContext.getAllocator();
result = new TopLevelAllocator();
bitContext.getOperatorCreatorRegistry();
result = new OperatorCreatorRegistry(c);
bitContext.getConfig();
result = c;
}
};
PhysicalPlanReader reader =
new PhysicalPlanReader(
c, c.getMapper(), CoordinationProtos.DrillbitEndpoint.getDefaultInstance());
PhysicalPlan plan =
reader.readPhysicalPlan(
Files.toString(
FileUtils.getResourceAsFile("/functions/testSubstringNegative.json"),
Charsets.UTF_8));
FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
FragmentContext context =
new FragmentContext(bitContext, PlanFragment.getDefaultInstance(), connection, registry);
SimpleRootExec exec =
new SimpleRootExec(
ImplCreator.getExec(
context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));
while (exec.next()) {
NullableVarCharVector c1 =
exec.getValueVectorById(
new SchemaPath("col3", ExpressionPosition.UNKNOWN), NullableVarCharVector.class);
NullableVarCharVector.Accessor a1;
a1 = c1.getAccessor();
int count = 0;
for (int i = 0; i < c1.getAccessor().getValueCount(); i++) {
if (!a1.isNull(i)) {
NullableVarCharHolder holder = new NullableVarCharHolder();
a1.get(i, holder);
// when offset is negative, substring return empty string.
assertEquals("", holder.toString());
++count;
}
}
assertEquals(50, count);
}
if (context.getFailureCause() != null) {
throw context.getFailureCause();
}
assertTrue(!context.isFailed());
}
public OrderedPartitionRecordBatch(
OrderedPartitionSender pop, RecordBatch incoming, FragmentContext context)
throws OutOfMemoryException {
super(pop, context);
this.incoming = incoming;
this.partitions = pop.getDestinations().size();
this.sendingMajorFragmentWidth = pop.getSendingWidth();
this.recordsToSample = pop.getRecordsToSample();
this.samplingFactor = pop.getSamplingFactor();
this.completionFactor = pop.getCompletionFactor();
DistributedCache cache = context.getDrillbitContext().getCache();
this.mmap = cache.getMultiMap(MULTI_CACHE_CONFIG);
this.tableMap = cache.getMap(SINGLE_CACHE_CONFIG);
Preconditions.checkNotNull(tableMap);
this.mapKey =
String.format(
"%s_%d", context.getHandle().getQueryId(), context.getHandle().getMajorFragmentId());
this.minorFragmentSampleCount = cache.getCounter(mapKey);
SchemaPath outputPath = popConfig.getRef();
MaterializedField outputField =
MaterializedField.create(outputPath, Types.required(TypeProtos.MinorType.INT));
this.partitionKeyVector =
(IntVector) TypeHelper.getNewVector(outputField, oContext.getAllocator());
}
public ExternalSortBatch(ExternalSort popConfig, FragmentContext context, RecordBatch incoming)
throws OutOfMemoryException {
super(popConfig, context, true);
this.incoming = incoming;
DrillConfig config = context.getConfig();
Configuration conf = new Configuration();
conf.set("fs.default.name", config.getString(ExecConstants.EXTERNAL_SORT_SPILL_FILESYSTEM));
try {
this.fs = FileSystem.get(conf);
} catch (IOException e) {
throw new RuntimeException(e);
}
SPILL_BATCH_GROUP_SIZE = config.getInt(ExecConstants.EXTERNAL_SORT_SPILL_GROUP_SIZE);
SPILL_THRESHOLD = config.getInt(ExecConstants.EXTERNAL_SORT_SPILL_THRESHOLD);
dirs = Iterators.cycle(config.getStringList(ExecConstants.EXTERNAL_SORT_SPILL_DIRS));
oAllocator = oContext.getAllocator();
copierAllocator =
oAllocator.newChildAllocator(
oAllocator.getName() + ":copier",
PriorityQueueCopier.INITIAL_ALLOCATION,
PriorityQueueCopier.MAX_ALLOCATION);
FragmentHandle handle = context.getHandle();
fileName =
String.format(
"%s_majorfragment%s_minorfragment%s_operator%s",
QueryIdHelper.getQueryId(handle.getQueryId()),
handle.getMajorFragmentId(),
handle.getMinorFragmentId(),
popConfig.getOperatorId());
}
public SingleBatchSorter createNewSorter(FragmentContext context, VectorAccessible batch)
throws ClassTransformationException, IOException, SchemaChangeException {
CodeGenerator<SingleBatchSorter> cg =
CodeGenerator.get(
SingleBatchSorter.TEMPLATE_DEFINITION,
context.getFunctionRegistry(),
context.getOptions());
ClassGenerator<SingleBatchSorter> g = cg.getRoot();
generateComparisons(g, batch);
return context.getImplementationClass(cg);
}
private MSorter createNewMSorter(
FragmentContext context,
List<Ordering> orderings,
VectorAccessible batch,
MappingSet mainMapping,
MappingSet leftMapping,
MappingSet rightMapping)
throws ClassTransformationException, IOException, SchemaChangeException {
CodeGenerator<MSorter> cg =
CodeGenerator.get(
MSorter.TEMPLATE_DEFINITION, context.getFunctionRegistry(), context.getOptions());
ClassGenerator<MSorter> g = cg.getRoot();
g.setMappingSet(mainMapping);
for (Ordering od : orderings) {
// first, we rewrite the evaluation stack for each side of the comparison.
ErrorCollector collector = new ErrorCollectorImpl();
final LogicalExpression expr =
ExpressionTreeMaterializer.materialize(
od.getExpr(), batch, collector, context.getFunctionRegistry());
if (collector.hasErrors()) {
throw new SchemaChangeException(
"Failure while materializing expression. " + collector.toErrorString());
}
g.setMappingSet(leftMapping);
HoldingContainer left = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
g.setMappingSet(rightMapping);
HoldingContainer right = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
g.setMappingSet(mainMapping);
// next we wrap the two comparison sides and add the expression block for the comparison.
LogicalExpression fh =
FunctionGenerationHelper.getOrderingComparator(
od.nullsSortHigh(), left, right, context.getFunctionRegistry());
HoldingContainer out = g.addExpr(fh, ClassGenerator.BlkCreateMode.FALSE);
JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));
if (od.getDirection() == Direction.ASCENDING) {
jc._then()._return(out.getValue());
} else {
jc._then()._return(out.getValue().minus());
}
g.rotateBlock();
}
g.rotateBlock();
g.getEvalBlock()._return(JExpr.lit(0));
return context.getImplementationClass(cg);
}
/**
* Create a FragmentExecutor where we already have a root operator in memory.
*
* @param context
* @param fragment
* @param statusReporter
* @param rootOperator
*/
public FragmentExecutor(
final FragmentContext context,
final PlanFragment fragment,
final FragmentStatusReporter statusReporter,
final FragmentRoot rootOperator) {
this.fragmentContext = context;
this.statusReporter = statusReporter;
this.fragment = fragment;
this.rootOperator = rootOperator;
this.fragmentName = QueryIdHelper.getQueryIdentifier(context.getHandle());
this.receiverExecutor = new ReceiverExecutor(fragmentName, fragmentContext.getExecutor());
context.setExecutorState(new ExecutorStateImpl());
}
@Override
public IterOutcome next() {
try {
RawFragmentBatch batch = fragProvider.getNext();
// skip over empty batches. we do this since these are basically control messages.
while (batch != null && batch.getHeader().getDef().getRecordCount() == 0) {
batch = fragProvider.getNext();
}
if (batch == null) {
batchLoader.clear();
return IterOutcome.NONE;
}
// logger.debug("Next received batch {}", batch);
RecordBatchDef rbd = batch.getHeader().getDef();
boolean schemaChanged = batchLoader.load(rbd, batch.getBody());
// System.out.println(rbd.getRecordCount());
batch.release();
if (schemaChanged) {
this.schema = batchLoader.getSchema();
return IterOutcome.OK_NEW_SCHEMA;
} else {
return IterOutcome.OK;
}
} catch (SchemaChangeException | IOException ex) {
context.fail(ex);
return IterOutcome.STOP;
}
}
public void readAllFixedFields(long recordsToRead) throws IOException {
boolean useAsyncColReader =
fragmentContext.getOptions().getOption(ExecConstants.PARQUET_COLUMNREADER_ASYNC).bool_val;
if (useAsyncColReader) {
readAllFixedFieldsParallel(recordsToRead);
} else {
readAllFixedFieldsSerial(recordsToRead);
;
}
}
@Override
public RecordWriter getRecordWriter(FragmentContext context, EasyWriter writer)
throws IOException {
Map<String, String> options = Maps.newHashMap();
options.put("location", writer.getLocation());
FragmentHandle handle = context.getHandle();
String fragmentId =
String.format("%d_%d", handle.getMajorFragmentId(), handle.getMinorFragmentId());
options.put("prefix", fragmentId);
options.put("separator", ((TextFormatConfig) getConfig()).getDelimiter());
options.put(
FileSystem.FS_DEFAULT_NAME_KEY, ((FileSystemConfig) writer.getStorageConfig()).connection);
options.put("extension", ((TextFormatConfig) getConfig()).getExtensions().get(0));
RecordWriter recordWriter = new DrillTextRecordWriter(context.getAllocator());
recordWriter.init(options);
return recordWriter;
}
public DrillBuf reallocIfNeeded(int size) {
if (this.capacity() >= size) {
return this;
}
if (context != null) {
return context.replace(this, size);
} else if (fContext != null) {
return fContext.replace(this, size);
} else if (bufManager != null) {
return bufManager.replace(this, size);
} else {
throw new UnsupportedOperationException(
"Realloc is only available in the context of an operator's UDFs");
}
}
private void closeOutResources() {
// first close the operators and release all memory.
try {
// Say executor was cancelled before setup. Now when executor actually runs, root is not
// initialized, but this
// method is called in finally. So root can be null.
if (root != null) {
root.close();
}
} catch (final Exception e) {
fail(e);
}
// then close the fragment context.
fragmentContext.close();
}
public RecordWriter getRecordWriter(FragmentContext context, ParquetWriter writer)
throws IOException, OutOfMemoryException {
Map<String, String> options = Maps.newHashMap();
options.put("location", writer.getLocation());
FragmentHandle handle = context.getHandle();
String fragmentId =
String.format("%d_%d", handle.getMajorFragmentId(), handle.getMinorFragmentId());
options.put("prefix", fragmentId);
options.put(
FileSystem.FS_DEFAULT_NAME_KEY, ((FileSystemConfig) writer.getStorageConfig()).connection);
options.put(
ExecConstants.PARQUET_BLOCK_SIZE,
context.getOptions().getOption(ExecConstants.PARQUET_BLOCK_SIZE).num_val.toString());
options.put(
ExecConstants.PARQUET_PAGE_SIZE,
context.getOptions().getOption(ExecConstants.PARQUET_PAGE_SIZE).num_val.toString());
options.put(
ExecConstants.PARQUET_DICT_PAGE_SIZE,
context.getOptions().getOption(ExecConstants.PARQUET_DICT_PAGE_SIZE).num_val.toString());
options.put(
ExecConstants.PARQUET_WRITER_COMPRESSION_TYPE,
context.getOptions().getOption(ExecConstants.PARQUET_WRITER_COMPRESSION_TYPE).string_val);
options.put(
ExecConstants.PARQUET_WRITER_ENABLE_DICTIONARY_ENCODING,
context
.getOptions()
.getOption(ExecConstants.PARQUET_WRITER_ENABLE_DICTIONARY_ENCODING)
.bool_val
.toString());
RecordWriter recordWriter = new ParquetRecordWriter(context, writer);
recordWriter.init(options);
return recordWriter;
}
/**
* Resume all the pauses within the current context. Note that this method will be called from
* threads *other* than the one running this runnable(). Also, this method can be called multiple
* times.
*/
public synchronized void unpause() {
fragmentContext.getExecutionControls().unpauseAll();
}
@Test
public void sortOneKeyAscending(
@Injectable final DrillbitContext bitContext, @Injectable UserClientConnection connection)
throws Throwable {
new NonStrictExpectations() {
{
bitContext.getMetrics();
result = new MetricRegistry();
bitContext.getAllocator();
result = new TopLevelAllocator();
bitContext.getOperatorCreatorRegistry();
result = new OperatorCreatorRegistry(c);
bitContext.getConfig();
result = c;
bitContext.getCompiler();
result = CodeCompiler.getTestCompiler(c);
}
};
final PhysicalPlanReader reader =
new PhysicalPlanReader(
c, c.getMapper(), CoordinationProtos.DrillbitEndpoint.getDefaultInstance());
final PhysicalPlan plan =
reader.readPhysicalPlan(
Files.toString(FileUtils.getResourceAsFile("/sort/one_key_sort.json"), Charsets.UTF_8));
final FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
final FragmentContext context =
new FragmentContext(bitContext, PlanFragment.getDefaultInstance(), connection, registry);
final SimpleRootExec exec =
new SimpleRootExec(
ImplCreator.getExec(
context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));
int previousInt = Integer.MIN_VALUE;
int recordCount = 0;
int batchCount = 0;
while (exec.next()) {
batchCount++;
final IntVector c1 =
exec.getValueVectorById(
new SchemaPath("blue", ExpressionPosition.UNKNOWN), IntVector.class);
final IntVector c2 =
exec.getValueVectorById(
new SchemaPath("green", ExpressionPosition.UNKNOWN), IntVector.class);
final IntVector.Accessor a1 = c1.getAccessor();
final IntVector.Accessor a2 = c2.getAccessor();
for (int i = 0; i < c1.getAccessor().getValueCount(); i++) {
recordCount++;
assertTrue(previousInt <= a1.get(i));
previousInt = a1.get(i);
assertEquals(previousInt, a2.get(i));
}
}
System.out.println(String.format("Sorted %,d records in %d batches.", recordCount, batchCount));
if (context.getFailureCause() != null) {
throw context.getFailureCause();
}
assertTrue(!context.isFailed());
}
@Override
public void setup(OperatorContext operatorContext, OutputMutator output)
throws ExecutionSetupException {
this.operatorContext = operatorContext;
if (!isStarQuery()) {
columnsFound = new boolean[getColumns().size()];
nullFilledVectors = new ArrayList<>();
}
columnStatuses = new ArrayList<>();
// totalRecords = footer.getBlocks().get(rowGroupIndex).getRowCount();
List<ColumnDescriptor> columns = footer.getFileMetaData().getSchema().getColumns();
allFieldsFixedLength = true;
ColumnDescriptor column;
ColumnChunkMetaData columnChunkMetaData;
int columnsToScan = 0;
mockRecordsRead = 0;
MaterializedField field;
// ParquetMetadataConverter metaConverter = new ParquetMetadataConverter();
FileMetaData fileMetaData;
logger.debug(
"Reading row group({}) with {} records in file {}.",
rowGroupIndex,
footer.getBlocks().get(rowGroupIndex).getRowCount(),
hadoopPath.toUri().getPath());
totalRecordsRead = 0;
// TODO - figure out how to deal with this better once we add nested reading, note also look
// where this map is used below
// store a map from column name to converted types if they are non-null
Map<String, SchemaElement> schemaElements =
ParquetReaderUtility.getColNameToSchemaElementMapping(footer);
// loop to add up the length of the fixed width columns and build the schema
for (int i = 0; i < columns.size(); ++i) {
column = columns.get(i);
SchemaElement se = schemaElements.get(column.getPath()[0]);
MajorType mt =
ParquetToDrillTypeConverter.toMajorType(
column.getType(),
se.getType_length(),
getDataMode(column),
se,
fragmentContext.getOptions());
field = MaterializedField.create(toFieldName(column.getPath()), mt);
if (!fieldSelected(field)) {
continue;
}
columnsToScan++;
int dataTypeLength = getDataTypeLength(column, se);
if (dataTypeLength == -1) {
allFieldsFixedLength = false;
} else {
bitWidthAllFixedFields += dataTypeLength;
}
}
// rowGroupOffset =
// footer.getBlocks().get(rowGroupIndex).getColumns().get(0).getFirstDataPageOffset();
if (columnsToScan != 0 && allFieldsFixedLength) {
recordsPerBatch =
(int)
Math.min(
Math.min(
batchSize / bitWidthAllFixedFields,
footer.getBlocks().get(0).getColumns().get(0).getValueCount()),
65535);
} else {
recordsPerBatch = DEFAULT_RECORDS_TO_READ_IF_NOT_FIXED_WIDTH;
}
try {
ValueVector vector;
SchemaElement schemaElement;
final ArrayList<VarLengthColumn<? extends ValueVector>> varLengthColumns = new ArrayList<>();
// initialize all of the column read status objects
boolean fieldFixedLength;
// the column chunk meta-data is not guaranteed to be in the same order as the columns in the
// schema
// a map is constructed for fast access to the correct columnChunkMetadata to correspond
// to an element in the schema
Map<String, Integer> columnChunkMetadataPositionsInList = new HashMap<>();
BlockMetaData rowGroupMetadata = footer.getBlocks().get(rowGroupIndex);
int colChunkIndex = 0;
for (ColumnChunkMetaData colChunk : rowGroupMetadata.getColumns()) {
columnChunkMetadataPositionsInList.put(
Arrays.toString(colChunk.getPath().toArray()), colChunkIndex);
colChunkIndex++;
}
for (int i = 0; i < columns.size(); ++i) {
column = columns.get(i);
columnChunkMetaData =
rowGroupMetadata
.getColumns()
.get(columnChunkMetadataPositionsInList.get(Arrays.toString(column.getPath())));
schemaElement = schemaElements.get(column.getPath()[0]);
MajorType type =
ParquetToDrillTypeConverter.toMajorType(
column.getType(),
schemaElement.getType_length(),
getDataMode(column),
schemaElement,
fragmentContext.getOptions());
field = MaterializedField.create(toFieldName(column.getPath()), type);
// the field was not requested to be read
if (!fieldSelected(field)) {
continue;
}
fieldFixedLength = column.getType() != PrimitiveType.PrimitiveTypeName.BINARY;
vector =
output.addField(
field,
(Class<? extends ValueVector>)
TypeHelper.getValueVectorClass(type.getMinorType(), type.getMode()));
if (column.getType() != PrimitiveType.PrimitiveTypeName.BINARY) {
if (column.getMaxRepetitionLevel() > 0) {
final RepeatedValueVector repeatedVector = RepeatedValueVector.class.cast(vector);
ColumnReader<?> dataReader =
ColumnReaderFactory.createFixedColumnReader(
this,
fieldFixedLength,
column,
columnChunkMetaData,
recordsPerBatch,
repeatedVector.getDataVector(),
schemaElement);
varLengthColumns.add(
new FixedWidthRepeatedReader(
this,
dataReader,
getTypeLengthInBits(column.getType()),
-1,
column,
columnChunkMetaData,
false,
repeatedVector,
schemaElement));
} else {
columnStatuses.add(
ColumnReaderFactory.createFixedColumnReader(
this,
fieldFixedLength,
column,
columnChunkMetaData,
recordsPerBatch,
vector,
schemaElement));
}
} else {
// create a reader and add it to the appropriate list
varLengthColumns.add(
ColumnReaderFactory.getReader(
this, -1, column, columnChunkMetaData, false, vector, schemaElement));
}
}
varLengthReader = new VarLenBinaryReader(this, varLengthColumns);
if (!isStarQuery()) {
List<SchemaPath> projectedColumns = Lists.newArrayList(getColumns());
SchemaPath col;
for (int i = 0; i < columnsFound.length; i++) {
col = projectedColumns.get(i);
assert col != null;
if (!columnsFound[i] && !col.equals(STAR_COLUMN)) {
nullFilledVectors.add(
(NullableIntVector)
output.addField(
MaterializedField.create(
col.getAsUnescapedPath(), Types.optional(TypeProtos.MinorType.INT)),
(Class<? extends ValueVector>)
TypeHelper.getValueVectorClass(
TypeProtos.MinorType.INT, DataMode.OPTIONAL)));
}
}
}
} catch (Exception e) {
handleAndRaise("Failure in setting up reader", e);
}
}
@Test
public void testAllocators() throws Exception {
// Setup a drillbit (initializes a root allocator)
final DrillConfig config = DrillConfig.create(TEST_CONFIGURATIONS);
final RemoteServiceSet serviceSet = RemoteServiceSet.getLocalServiceSet();
final Drillbit bit = new Drillbit(config, serviceSet);
bit.run();
final DrillbitContext bitContext = bit.getContext();
FunctionImplementationRegistry functionRegistry =
bitContext.getFunctionImplementationRegistry();
StoragePluginRegistry storageRegistry = new StoragePluginRegistry(bitContext);
// Create a few Fragment Contexts
BitControl.PlanFragment.Builder pfBuilder1 = BitControl.PlanFragment.newBuilder();
pfBuilder1.setMemInitial(1500000);
BitControl.PlanFragment pf1 = pfBuilder1.build();
BitControl.PlanFragment.Builder pfBuilder2 = BitControl.PlanFragment.newBuilder();
pfBuilder2.setMemInitial(500000);
BitControl.PlanFragment pf2 = pfBuilder1.build();
FragmentContext fragmentContext1 = new FragmentContext(bitContext, pf1, null, functionRegistry);
FragmentContext fragmentContext2 = new FragmentContext(bitContext, pf2, null, functionRegistry);
// Get a few physical operators. Easiest way is to read a physical plan.
PhysicalPlanReader planReader =
new PhysicalPlanReader(
config,
config.getMapper(),
CoordinationProtos.DrillbitEndpoint.getDefaultInstance(),
storageRegistry);
PhysicalPlan plan =
planReader.readPhysicalPlan(
Files.toString(FileUtils.getResourceAsFile(planFile), Charsets.UTF_8));
List<PhysicalOperator> physicalOperators = plan.getSortedOperators();
Iterator<PhysicalOperator> physicalOperatorIterator = physicalOperators.iterator();
PhysicalOperator physicalOperator1 = physicalOperatorIterator.next();
PhysicalOperator physicalOperator2 = physicalOperatorIterator.next();
PhysicalOperator physicalOperator3 = physicalOperatorIterator.next();
PhysicalOperator physicalOperator4 = physicalOperatorIterator.next();
PhysicalOperator physicalOperator5 = physicalOperatorIterator.next();
PhysicalOperator physicalOperator6 = physicalOperatorIterator.next();
// Create some bogus Operator profile defs and stats to create operator contexts
OpProfileDef def;
OperatorStats stats;
// Use some bogus operator type to create a new operator context.
def =
new OpProfileDef(
physicalOperator1.getOperatorId(),
UserBitShared.CoreOperatorType.MOCK_SUB_SCAN_VALUE,
OperatorContext.getChildCount(physicalOperator1));
stats = fragmentContext1.getStats().getOperatorStats(def, fragmentContext1.getAllocator());
// Add a couple of Operator Contexts
// Initial allocation = 1000000 bytes for all operators
OperatorContext oContext11 = fragmentContext1.newOperatorContext(physicalOperator1, true);
DrillBuf b11 = oContext11.getAllocator().buffer(1000000);
OperatorContext oContext12 =
fragmentContext1.newOperatorContext(physicalOperator2, stats, true);
DrillBuf b12 = oContext12.getAllocator().buffer(500000);
OperatorContext oContext21 = fragmentContext1.newOperatorContext(physicalOperator3, true);
def =
new OpProfileDef(
physicalOperator4.getOperatorId(),
UserBitShared.CoreOperatorType.TEXT_WRITER_VALUE,
OperatorContext.getChildCount(physicalOperator4));
stats = fragmentContext2.getStats().getOperatorStats(def, fragmentContext2.getAllocator());
OperatorContext oContext22 =
fragmentContext2.newOperatorContext(physicalOperator4, stats, true);
DrillBuf b22 = oContext22.getAllocator().buffer(2000000);
// New Fragment begins
BitControl.PlanFragment.Builder pfBuilder3 = BitControl.PlanFragment.newBuilder();
pfBuilder3.setMemInitial(1000000);
BitControl.PlanFragment pf3 = pfBuilder3.build();
FragmentContext fragmentContext3 = new FragmentContext(bitContext, pf3, null, functionRegistry);
// New fragment starts an operator that allocates an amount within the limit
def =
new OpProfileDef(
physicalOperator5.getOperatorId(),
UserBitShared.CoreOperatorType.UNION_VALUE,
OperatorContext.getChildCount(physicalOperator5));
stats = fragmentContext3.getStats().getOperatorStats(def, fragmentContext3.getAllocator());
OperatorContext oContext31 =
fragmentContext3.newOperatorContext(physicalOperator5, stats, true);
DrillBuf b31a = oContext31.getAllocator().buffer(200000);
// Previously running operator completes
b22.release();
((AutoCloseable) oContext22).close();
// Fragment 3 asks for more and fails
boolean outOfMem = false;
try {
DrillBuf b31b = oContext31.getAllocator().buffer(4400000);
if (b31b != null) {
b31b.release();
} else {
outOfMem = true;
}
} catch (Exception e) {
outOfMem = true;
}
assertEquals(true, (boolean) outOfMem);
// Operator is Exempt from Fragment limits. Fragment 3 asks for more and succeeds
outOfMem = false;
OperatorContext oContext32 = fragmentContext3.newOperatorContext(physicalOperator6, false);
DrillBuf b32 = null;
try {
b32 = oContext32.getAllocator().buffer(4400000);
} catch (Exception e) {
outOfMem = true;
} finally {
if (b32 != null) {
b32.release();
} else {
outOfMem = true;
}
closeOp(oContext32);
}
assertEquals(false, (boolean) outOfMem);
b11.release();
closeOp(oContext11);
b12.release();
closeOp(oContext12);
closeOp(oContext21);
b31a.release();
closeOp(oContext31);
fragmentContext1.close();
fragmentContext2.close();
fragmentContext3.close();
bit.close();
serviceSet.close();
}
public WireRecordBatch(FragmentContext context, RawFragmentBatchProvider fragProvider) {
this.fragProvider = fragProvider;
this.context = context;
this.batchLoader = new RecordBatchLoader(context.getAllocator());
}
@Override
public void run() {
// if a cancel thread has already entered this executor, we have not reason to continue.
if (!hasCloseoutThread.compareAndSet(false, true)) {
return;
}
final Thread myThread = Thread.currentThread();
myThreadRef.set(myThread);
final String originalThreadName = myThread.getName();
final FragmentHandle fragmentHandle = fragmentContext.getHandle();
final DrillbitContext drillbitContext = fragmentContext.getDrillbitContext();
final ClusterCoordinator clusterCoordinator = drillbitContext.getClusterCoordinator();
final DrillbitStatusListener drillbitStatusListener = new FragmentDrillbitStatusListener();
final String newThreadName = QueryIdHelper.getExecutorThreadName(fragmentHandle);
try {
myThread.setName(newThreadName);
// if we didn't get the root operator when the executor was created, create it now.
final FragmentRoot rootOperator =
this.rootOperator != null
? this.rootOperator
: drillbitContext.getPlanReader().readFragmentOperator(fragment.getFragmentJson());
root = ImplCreator.getExec(fragmentContext, rootOperator);
if (root == null) {
return;
}
clusterCoordinator.addDrillbitStatusListener(drillbitStatusListener);
updateState(FragmentState.RUNNING);
acceptExternalEvents.countDown();
injector.injectPause(fragmentContext.getExecutionControls(), "fragment-running", logger);
final DrillbitEndpoint endpoint = drillbitContext.getEndpoint();
logger.debug(
"Starting fragment {}:{} on {}:{}",
fragmentHandle.getMajorFragmentId(),
fragmentHandle.getMinorFragmentId(),
endpoint.getAddress(),
endpoint.getUserPort());
final UserGroupInformation queryUserUgi =
fragmentContext.isImpersonationEnabled()
? ImpersonationUtil.createProxyUgi(fragmentContext.getQueryUserName())
: ImpersonationUtil.getProcessUserUGI();
queryUserUgi.doAs(
new PrivilegedExceptionAction<Void>() {
public Void run() throws Exception {
injector.injectChecked(
fragmentContext.getExecutionControls(), "fragment-execution", IOException.class);
/*
* Run the query until root.next returns false OR we no longer need to continue.
*/
while (shouldContinue() && root.next()) {
// loop
}
return null;
}
});
} catch (OutOfMemoryError | OutOfMemoryException e) {
if (!(e instanceof OutOfMemoryError) || "Direct buffer memory".equals(e.getMessage())) {
fail(UserException.memoryError(e).build(logger));
} else {
// we have a heap out of memory error. The JVM in unstable, exit.
CatastrophicFailure.exit(
e, "Unable to handle out of memory condition in FragmentExecutor.", -2);
}
} catch (AssertionError | Exception e) {
fail(e);
} finally {
// no longer allow this thread to be interrupted. We synchronize here to make sure that cancel
// can't set an
// interruption after we have moved beyond this block.
synchronized (myThreadRef) {
myThreadRef.set(null);
Thread.interrupted();
}
// We need to sure we countDown at least once. We'll do it here to guarantee that.
acceptExternalEvents.countDown();
// here we could be in FAILED, RUNNING, or CANCELLATION_REQUESTED
cleanup(FragmentState.FINISHED);
clusterCoordinator.removeDrillbitStatusListener(drillbitStatusListener);
myThread.setName(originalThreadName);
}
}
