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impala::EmptySetNode Class Reference

#include <empty-set-node.h>

Inheritance diagram for impala::EmptySetNode:
Collaboration diagram for impala::EmptySetNode:

Public Member Functions

 EmptySetNode (ObjectPool *pool, const TPlanNode &tnode, const DescriptorTbl &descs)
 
virtual Status GetNext (RuntimeState *state, RowBatch *row_batch, bool *eos)
 
virtual Status Init (const TPlanNode &tnode)
 
virtual Status Prepare (RuntimeState *state)
 
virtual Status Open (RuntimeState *state)
 
virtual Status Reset (RuntimeState *state)
 
virtual void Close (RuntimeState *state)
 
void CollectNodes (TPlanNodeType::type node_type, std::vector< ExecNode * > *nodes)
 
void CollectScanNodes (std::vector< ExecNode * > *nodes)
 Collect all scan node types. More...
 
std::string DebugString () const
 Returns a string representation in DFS order of the plan rooted at this. More...
 
virtual void DebugString (int indentation_level, std::stringstream *out) const
 
const std::vector< ExprContext * > & conjunct_ctxs () const
 
int id () const
 
TPlanNodeType::type type () const
 
const RowDescriptor & row_desc () const
 
int64_t rows_returned () const
 
int64_t limit () const
 
bool ReachedLimit ()
 
RuntimeProfile * runtime_profile ()
 
MemTracker * mem_tracker ()
 
MemTracker * expr_mem_tracker ()
 

Static Public Member Functions

static Status CreateTree (ObjectPool *pool, const TPlan &plan, const DescriptorTbl &descs, ExecNode **root)
 
static void SetDebugOptions (int node_id, TExecNodePhase::type phase, TDebugAction::type action, ExecNode *tree)
 Set debug action for node with given id in 'tree'. More...
 
static bool EvalConjuncts (ExprContext *const *ctxs, int num_ctxs, TupleRow *row)
 
static llvm::Function * CodegenEvalConjuncts (RuntimeState *state, const std::vector< ExprContext * > &conjunct_ctxs, const char *name="EvalConjuncts")
 
static int GetNodeIdFromProfile (RuntimeProfile *p)
 Extract node id from p->name(). More...
 

Static Public Attributes

static const std::string ROW_THROUGHPUT_COUNTER = "RowsReturnedRate"
 Names of counters shared by all exec nodes. More...
 

Protected Member Functions

ExecNode * child (int i)
 
bool is_closed ()
 
virtual bool IsScanNode () const
 
void InitRuntimeProfile (const std::string &name)
 
Status ExecDebugAction (TExecNodePhase::type phase, RuntimeState *state)
 
void AddRuntimeExecOption (const std::string &option)
 Appends option to 'runtime_exec_options_'. More...
 
virtual Status QueryMaintenance (RuntimeState *state)
 
void AddExprCtxToFree (ExprContext *ctx)
 
void AddExprCtxsToFree (const std::vector< ExprContext * > &ctxs)
 
void AddExprCtxsToFree (const SortExecExprs &sort_exec_exprs)
 

Static Protected Member Functions

static Status CreateNode (ObjectPool *pool, const TPlanNode &tnode, const DescriptorTbl &descs, ExecNode **node)
 Create a single exec node derived from thrift node; place exec node in 'pool'. More...
 
static Status CreateTreeHelper (ObjectPool *pool, const std::vector< TPlanNode > &tnodes, const DescriptorTbl &descs, ExecNode *parent, int *node_idx, ExecNode **root)
 

Protected Attributes

int id_
 
TPlanNodeType::type type_
 
ObjectPool * pool_
 
std::vector< ExprContext * > conjunct_ctxs_
 
std::vector< ExecNode * > children_
 
RowDescriptor row_descriptor_
 
TExecNodePhase::type debug_phase_
 
TDebugAction::type debug_action_
 
int64_t limit_
 
int64_t num_rows_returned_
 
boost::scoped_ptr< RuntimeProfile > runtime_profile_
 
RuntimeProfile::Counter * rows_returned_counter_
 
RuntimeProfile::Counter * rows_returned_rate_
 
boost::scoped_ptr< MemTracker > mem_tracker_
 Account for peak memory used by this node. More...
 
boost::scoped_ptr< MemTracker > expr_mem_tracker_
 MemTracker that should be used for ExprContexts. More...
 
boost::mutex exec_options_lock_
 
std::string runtime_exec_options_
 

Detailed Description

Node that returns an empty result set, i.e., just sets eos_ in GetNext(). Corresponds to EmptySetNode.java in the FE.

Definition at line 25 of file empty-set-node.h.

Constructor & Destructor Documentation

impala::EmptySetNode::EmptySetNode ( ObjectPool *  pool,
const TPlanNode &  tnode,
const DescriptorTbl &  descs 
)

Definition at line 21 of file empty-set-node.cc.

Member Function Documentation

void impala::ExecNode::AddExprCtxsToFree ( const std::vector< ExprContext * > &  ctxs)
protectedinherited

Referenced by impala::ExecNode::AddExprCtxsToFree(), impala::UnionNode::Prepare(), impala::SortNode::Prepare(), impala::TopNNode::Prepare(), impala::ExchangeNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::ExecNode::Prepare(), impala::PartitionedAggregationNode::Prepare(), and impala::HdfsScanNode::Prepare().

void impala::ExecNode::AddExprCtxsToFree ( const SortExecExprs &  sort_exec_exprs)
protectedinherited

Definition at line 410 of file exec-node.cc.

References impala::ExecNode::AddExprCtxsToFree(), impala::SortExecExprs::lhs_ordering_expr_ctxs(), impala::SortExecExprs::rhs_ordering_expr_ctxs(), and impala::SortExecExprs::sort_tuple_slot_expr_ctxs().

void impala::ExecNode::AddExprCtxToFree ( ExprContext *  ctx)
inlineprotectedinherited

Add an ExprContext to have its local allocations freed by QueryMaintenance(). Exprs that are evaluated in the main execution thread should be added. Exprs evaluated in a separate thread are generally not safe to add, since a local allocation may be freed while it's being used. Rather than using this mechanism, threads should call FreeLocalAllocations() on local ExprContexts periodically.

Definition at line 276 of file exec-node.h.

References impala::ExecNode::expr_ctxs_to_free_.

Referenced by impala::AnalyticEvalNode::Prepare().

void impala::ExecNode::AddRuntimeExecOption ( const std::string &  option)
protectedinherited

Appends option to 'runtime_exec_options_'.

Definition at line 188 of file exec-node.cc.

References impala::RuntimeProfile::AddInfoString(), impala::ExecNode::exec_options_lock_, impala::ExecNode::runtime_exec_options_, and impala::ExecNode::runtime_profile().

Referenced by impala::PartitionedHashJoinNode::AttachProbeFilters(), impala::HashJoinNode::ConstructBuildSide(), impala::BlockingJoinNode::Open(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::PartitionedAggregationNode::Prepare(), impala::HdfsScanNode::Prepare(), and impala::HdfsScanNode::StopAndFinalizeCounters().

ExecNode* impala::ExecNode::child ( int  i)
inlineprotectedinherited

Definition at line 241 of file exec-node.h.

References impala::ExecNode::children_.

Referenced by impala::CrossJoinNode::BuildListDebugString(), impala::BlockingJoinNode::BuildSideThread(), impala::HashJoinNode::CodegenCreateOutputRow(), impala::PartitionedHashJoinNode::CodegenCreateOutputRow(), impala::CrossJoinNode::ConstructBuildSide(), impala::HashJoinNode::ConstructBuildSide(), impala::PartitionedHashJoinNode::ConstructBuildSide(), impala::BlockingJoinNode::GetLeftChildRowString(), impala::SelectNode::GetNext(), impala::UnionNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::PartitionedAggregationNode::Partition::InitStreams(), impala::HashJoinNode::LeftJoinGetNext(), impala::PartitionedHashJoinNode::NextProbeRowBatch(), impala::SelectNode::Open(), impala::SortNode::Open(), impala::TopNNode::Open(), impala::BlockingJoinNode::Open(), impala::AggregationNode::Open(), impala::AnalyticEvalNode::Open(), impala::PartitionedAggregationNode::Open(), impala::UnionNode::OpenCurrentChild(), impala::SelectNode::Prepare(), impala::SortNode::Prepare(), impala::UnionNode::Prepare(), impala::TopNNode::Prepare(), impala::BlockingJoinNode::Prepare(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::PartitionedAggregationNode::Prepare(), impala::PartitionedHashJoinNode::ProcessBuildInput(), impala::AnalyticEvalNode::ProcessChildBatches(), and impala::SortNode::SortInput().

void impala::ExecNode::Close ( RuntimeState *  state)
virtualinherited

Close() will get called for every exec node, regardless of what else is called and the status of these calls (i.e. Prepare() may never have been called, or Prepare()/Open()/GetNext() returned with an error). Close() releases all resources that were allocated in Open()/GetNext(), even if the latter ended with an error. Close() can be called if the node has been prepared or the node is closed. The default implementation updates runtime profile counters and calls Close() on the children. Subclasses should check if the node has already been closed (is_closed()), then close themselves, then call the base Close(). Nodes that are using tuples returned by a child may call Close() on their children before their own Close() if the child node has returned eos. It is only safe to call Close() on the child node while the parent node is still returning rows if the parent node fully materializes the child's input.

Reimplemented in impala::HdfsScanNode, impala::PartitionedAggregationNode, impala::AnalyticEvalNode, impala::PartitionedHashJoinNode, impala::BlockingJoinNode, impala::AggregationNode, impala::DataSourceScanNode, impala::HashJoinNode, impala::CrossJoinNode, impala::HBaseScanNode, impala::ExchangeNode, impala::TopNNode, impala::SortNode, impala::UnionNode, and impala::SelectNode.

Definition at line 166 of file exec-node.cc.

References impala::ExecNode::children_, impala::Expr::Close(), impala::ExecNode::conjunct_ctxs_, COUNTER_SET, impala::RuntimeState::instance_mem_tracker(), impala::ExecNode::is_closed_, impala::MemTracker::LogUsage(), impala::ExecNode::mem_tracker(), impala::ExecNode::num_rows_returned_, impala::RuntimeState::query_id(), and impala::ExecNode::rows_returned_counter_.

Referenced by impala::BlockingJoinNode::BuildSideThread(), impala::SelectNode::Close(), impala::UnionNode::Close(), impala::SortNode::Close(), impala::TopNNode::Close(), impala::ExchangeNode::Close(), impala::HBaseScanNode::Close(), impala::AggregationNode::Close(), impala::BlockingJoinNode::Close(), impala::AnalyticEvalNode::Close(), impala::PartitionedAggregationNode::Close(), impala::PlanFragmentExecutor::Close(), impala::HdfsScanNode::Close(), impala::UnionNode::GetNext(), impala::SortNode::Open(), impala::TopNNode::Open(), impala::AggregationNode::Open(), and impala::PartitionedAggregationNode::Open().

Function * impala::ExecNode::CodegenEvalConjuncts ( RuntimeState *  state,
const std::vector< ExprContext * > &  conjunct_ctxs,
const char *  name = "EvalConjuncts" 
)
staticinherited

Returns a codegen'd version of EvalConjuncts(), or NULL if the function couldn't be codegen'd. The codegen'd version uses inlined, codegen'd GetBooleanVal() functions.

Definition at line 452 of file exec-node.cc.

References impala::LlvmCodeGen::FnPrototype::AddArgument(), impala::LlvmCodeGen::context(), impala::CodegenAnyVal::CreateCallWrapped(), impala::LlvmCodeGen::false_value(), impala::LlvmCodeGen::FinalizeFunction(), impala::RuntimeState::GetCodegen(), impala::Status::GetDetail(), impala::CodegenAnyVal::GetIsNull(), impala::LlvmCodeGen::GetType(), impala::CodegenAnyVal::GetVal(), impala::TupleRow::LLVM_CLASS_NAME, impala::ExprContext::LLVM_CLASS_NAME, impala::Status::ok(), impala::LlvmCodeGen::true_value(), impala::ExecNode::type(), impala::TYPE_BOOLEAN, impala::TYPE_INT, and VLOG_QUERY.

Referenced by impala::HdfsAvroScanner::CodegenDecodeAvroData(), impala::HashJoinNode::CodegenProcessProbeBatch(), and impala::PartitionedHashJoinNode::CodegenProcessProbeBatch().

void impala::ExecNode::CollectNodes ( TPlanNodeType::type  node_type,
std::vector< ExecNode * > *  nodes 
)
inherited

Collect all nodes of given 'node_type' that are part of this subtree, and return in 'nodes'.

Definition at line 359 of file exec-node.cc.

References impala::ExecNode::children_, and impala::ExecNode::type_.

Referenced by impala::ExecNode::CollectScanNodes(), and impala::PlanFragmentExecutor::Prepare().

void impala::ExecNode::CollectScanNodes ( std::vector< ExecNode * > *  nodes)
inherited

Collect all scan node types.

Definition at line 366 of file exec-node.cc.

References impala::ExecNode::CollectNodes().

Referenced by impala::PlanFragmentExecutor::Prepare().

const std::vector<ExprContext*>& impala::ExecNode::conjunct_ctxs ( ) const
inlineinherited

Definition at line 152 of file exec-node.h.

References impala::ExecNode::conjunct_ctxs_.

Referenced by impala::HdfsScanNode::ComputeSlotMaterializationOrder(), impala::SelectNode::CopyRows(), impala::UnionNode::EvalAndMaterializeExprs(), impala::HashJoinNode::GetNext(), impala::PartitionedHashJoinNode::OutputUnmatchedBuild(), impala::HashJoinNode::ProcessProbeBatch(), and impala::PartitionedHashJoinNode::ProcessProbeBatch().

Status impala::ExecNode::CreateNode ( ObjectPool *  pool,
const TPlanNode &  tnode,
const DescriptorTbl &  descs,
ExecNode **  node 
)
staticprotectedinherited

Create a single exec node derived from thrift node; place exec node in 'pool'.

Definition at line 260 of file exec-node.cc.

References impala::ObjectPool::Add(), impala::Status::OK, and RETURN_IF_ERROR.

Referenced by impala::ExecNode::CreateTreeHelper().

Status impala::ExecNode::CreateTree ( ObjectPool *  pool,
const TPlan &  plan,
const DescriptorTbl &  descs,
ExecNode **  root 
)
staticinherited

Creates exec node tree from list of nodes contained in plan via depth-first traversal. All nodes are placed in pool. Returns error if 'plan' is corrupted, otherwise success.

Definition at line 199 of file exec-node.cc.

References impala::ExecNode::CreateTreeHelper(), impala::Status::OK, and impala::Status::ok().

Referenced by impala::PlanFragmentExecutor::Prepare().

Status impala::ExecNode::CreateTreeHelper ( ObjectPool *  pool,
const std::vector< TPlanNode > &  tnodes,
const DescriptorTbl &  descs,
ExecNode *  parent,
int *  node_idx,
ExecNode **  root 
)
staticprotectedinherited

Definition at line 218 of file exec-node.cc.

References impala::RuntimeProfile::AddChild(), impala::ExecNode::children_, impala::ExecNode::CreateNode(), impala::Status::OK, RETURN_IF_ERROR, and impala::ExecNode::runtime_profile().

Referenced by impala::ExecNode::CreateTree().

string impala::ExecNode::DebugString ( ) const
inherited

Returns a string representation in DFS order of the plan rooted at this.

Definition at line 345 of file exec-node.cc.

Referenced by impala::SortNode::DebugString(), impala::TopNNode::DebugString(), impala::ExchangeNode::DebugString(), impala::AggregationNode::DebugString(), impala::AnalyticEvalNode::DebugString(), impala::PartitionedAggregationNode::DebugString(), impala::BlockingJoinNode::DebugString(), and impala::PlanFragmentExecutor::Prepare().

virtual void impala::ExecNode::DebugString ( int  indentation_level,
std::stringstream *  out 
) const
virtualinherited

Recursive helper method for generating a string for DebugString(). Implementations should call DebugString(int, std::stringstream) on their children. Input parameters: indentation_level: Current level in plan tree. Output parameters: out: Stream to accumulate debug string.

Reimplemented in impala::BlockingJoinNode, impala::PartitionedAggregationNode, impala::AnalyticEvalNode, impala::AggregationNode, impala::DataSourceScanNode, impala::ExchangeNode, impala::HBaseScanNode, impala::TopNNode, and impala::SortNode.

bool impala::ExecNode::EvalConjuncts ( ExprContext *const *  ctxs,
int  num_ctxs,
TupleRow *  row 
)
staticinherited

Evaluate ExprContexts over row. Returns true if all exprs return true. TODO: This doesn't use the vector<Expr*> signature because I haven't figured out how to deal with declaring a templated std:vector type in IR

Definition at line 393 of file exec-node.cc.

References impala::ExprContext::GetBooleanVal(), impala_udf::AnyVal::is_null, and impala_udf::BooleanVal::val.

Referenced by impala::SelectNode::CopyRows(), impala::UnionNode::EvalAndMaterializeExprs(), impala::HdfsScanner::EvalConjuncts(), EvalOtherJoinConjuncts(), EvalOtherJoinConjuncts2(), impala::PartitionedHashJoinNode::EvaluateNullProbe(), impala::HBaseScanNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::PartitionedHashJoinNode::OutputNullAwareProbeRows(), impala::PartitionedHashJoinNode::OutputUnmatchedBuild(), impala::CrossJoinNode::ProcessLeftChildBatch(), impala::HashJoinNode::ProcessProbeBatch(), and impala::PartitionedHashJoinNode::ProcessProbeBatch().

Status impala::ExecNode::ExecDebugAction ( TExecNodePhase::type  phase,
RuntimeState *  state 
)
protectedinherited

Executes debug_action_ if phase matches debug_phase_. 'phase' must not be INVALID.

Definition at line 378 of file exec-node.cc.

References impala::Status::CANCELLED, impala::ExecNode::debug_action_, impala::ExecNode::debug_phase_, impala::RuntimeState::is_cancelled(), and impala::Status::OK.

Referenced by impala::SelectNode::GetNext(), impala::SortNode::GetNext(), impala::UnionNode::GetNext(), impala::HBaseScanNode::GetNext(), impala::TopNNode::GetNext(), impala::ExchangeNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::AnalyticEvalNode::GetNext(), impala::PartitionedHashJoinNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::HdfsScanNode::GetNextInternal(), impala::ExecNode::Open(), and impala::ExecNode::Prepare().

MemTracker* impala::ExecNode::expr_mem_tracker ( )
inlineinherited

Definition at line 163 of file exec-node.h.

References impala::ExecNode::expr_mem_tracker_.

Referenced by impala::PartitionedAggregationNode::Partition::InitStreams(), impala::SortNode::Prepare(), impala::UnionNode::Prepare(), impala::TopNNode::Prepare(), impala::ExchangeNode::Prepare(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::ExecNode::Prepare(), impala::PartitionedAggregationNode::Prepare(), and impala::HdfsScanNode::Prepare().

Status impala::EmptySetNode::GetNext ( RuntimeState *  state,
RowBatch *  row_batch,
bool *  eos 
)
virtual

Retrieves rows and returns them via row_batch. Sets eos to true if subsequent calls will not retrieve any more rows. Data referenced by any tuples returned in row_batch must not be overwritten by the callee until Close() is called. The memory holding that data can be returned via row_batch's tuple_data_pool (in which case it may be deleted by the caller) or held on to by the callee. The row_batch, including its tuple_data_pool, will be destroyed by the caller at some point prior to the final Close() call. In other words, if the memory holding the tuple data will be referenced by the callee in subsequent GetNext() calls, it must not be attached to the row_batch's tuple_data_pool. Caller must not be holding any io buffers. This will cause deadlock. TODO: AggregationNode and HashJoinNode cannot be "re-opened" yet.

Implements impala::ExecNode.

Definition at line 26 of file empty-set-node.cc.

References impala::Status::OK.

int impala::ExecNode::GetNodeIdFromProfile ( RuntimeProfile *  p)
staticinherited

Extract node id from p->name().

Definition at line 62 of file exec-node.cc.

References impala::RuntimeProfile::metadata().

int impala::ExecNode::id ( ) const
inlineinherited

Definition at line 154 of file exec-node.h.

References impala::ExecNode::id_.

Referenced by impala::AnalyticEvalNode::AddResultTuple(), impala::AnalyticEvalNode::AddRow(), impala::AnalyticEvalNode::AnalyticEvalNode(), impala::AnalyticEvalNode::GetNext(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::HdfsScanner::InitializeWriteTuplesFn(), impala::HdfsAvroScanner::InitNewRange(), impala::AnalyticEvalNode::InitNextPartition(), impala::PartitionedAggregationNode::MoveHashPartitions(), impala::PartitionedHashJoinNode::NodeDebugString(), impala::AnalyticEvalNode::Open(), impala::HdfsScanNode::Open(), impala::PlanFragmentExecutor::Prepare(), impala::PartitionedHashJoinNode::ProcessBuildInput(), impala::AnalyticEvalNode::ProcessChildBatch(), impala::HdfsScanNode::ScannerThread(), impala::AnalyticEvalNode::TryAddRemainingResults(), impala::AnalyticEvalNode::TryAddResultTupleForCurrRow(), impala::AnalyticEvalNode::TryAddResultTupleForPrevRow(), and impala::AnalyticEvalNode::TryRemoveRowsBeforeWindow().

Status impala::ExecNode::Init ( const TPlanNode &  tnode)
virtualinherited

Initializes this object from the thrift tnode desc. The subclass should do any initialization that can fail in Init() rather than the ctor. If overridden in subclass, must first call superclass's Init().

Reimplemented in impala::PartitionedAggregationNode, impala::AnalyticEvalNode, impala::PartitionedHashJoinNode, impala::AggregationNode, impala::HashJoinNode, impala::BlockingJoinNode, impala::ExchangeNode, impala::TopNNode, impala::SortNode, and impala::UnionNode.

Definition at line 124 of file exec-node.cc.

References impala::ExecNode::conjunct_ctxs_, impala::Expr::CreateExprTrees(), impala::Status::OK, impala::ExecNode::pool_, and RETURN_IF_ERROR.

Referenced by impala::SortNode::Init(), impala::UnionNode::Init(), impala::TopNNode::Init(), impala::ExchangeNode::Init(), impala::BlockingJoinNode::Init(), impala::AggregationNode::Init(), impala::AnalyticEvalNode::Init(), and impala::PartitionedAggregationNode::Init().

void impala::ExecNode::InitRuntimeProfile ( const std::string &  name)
protectedinherited

Definition at line 371 of file exec-node.cc.

References impala::ExecNode::id_, impala::ExecNode::pool_, and impala::ExecNode::runtime_profile_.

Referenced by impala::ExecNode::ExecNode().

bool impala::ExecNode::is_closed ( )
inlineprotectedinherited

Definition at line 242 of file exec-node.h.

References impala::ExecNode::is_closed_.

Referenced by impala::SelectNode::Close(), impala::SortNode::Close(), impala::UnionNode::Close(), impala::TopNNode::Close(), impala::ExchangeNode::Close(), impala::HBaseScanNode::Close(), impala::CrossJoinNode::Close(), impala::HashJoinNode::Close(), impala::AggregationNode::Close(), impala::BlockingJoinNode::Close(), impala::AnalyticEvalNode::Close(), impala::PartitionedHashJoinNode::Close(), impala::PartitionedAggregationNode::Close(), impala::HdfsScanNode::Close(), impala::PartitionedAggregationNode::Partition::Close(), impala::PartitionedHashJoinNode::Partition::Close(), impala::PartitionedHashJoinNode::ReserveTupleStreamBlocks(), impala::PartitionedHashJoinNode::SpillPartition(), impala::PartitionedAggregationNode::SpillPartition(), and impala::PartitionedHashJoinNode::Partition::~Partition().

virtual bool impala::ExecNode::IsScanNode ( ) const
inlineprotectedvirtualinherited

Reimplemented in impala::ScanNode.

Definition at line 251 of file exec-node.h.

int64_t impala::ExecNode::limit ( ) const
inlineinherited

Definition at line 158 of file exec-node.h.

References impala::ExecNode::limit_.

Referenced by impala::CrossJoinNode::GetNext(), and impala::HashJoinNode::LeftJoinGetNext().

MemTracker* impala::ExecNode::mem_tracker ( )
inlineinherited

Definition at line 162 of file exec-node.h.

References impala::ExecNode::mem_tracker_.

Referenced by impala::ExecNode::Close(), impala::CrossJoinNode::ConstructBuildSide(), impala::HashJoinNode::ConstructBuildSide(), impala::HdfsScanNode::EnoughMemoryForScannerThread(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::SortNode::Open(), impala::TopNNode::Open(), impala::AggregationNode::Open(), impala::AnalyticEvalNode::Open(), impala::PartitionedAggregationNode::Open(), impala::HdfsScanNode::Open(), impala::UnionNode::OpenCurrentChild(), impala::SelectNode::Prepare(), impala::HBaseScanNode::Prepare(), impala::TopNNode::Prepare(), impala::BlockingJoinNode::Prepare(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::PartitionedAggregationNode::Prepare(), impala::HdfsScanNode::Prepare(), impala::PartitionedHashJoinNode::PrepareNextPartition(), impala::PartitionedHashJoinNode::ProcessBuildInput(), impala::PartitionedAggregationNode::ProcessStream(), impala::HdfsRCFileScanner::ReadRowGroup(), impala::HdfsAvroScanner::ResolveSchemas(), impala::SortNode::SortInput(), and impala::HdfsScanner::StartNewRowBatch().

Status impala::ExecNode::Open ( RuntimeState *  state)
virtualinherited

Performs any preparatory work prior to calling GetNext(). Caller must not be holding any io buffers. This will cause deadlock. If overridden in subclass, must first call superclass's Open(). If a parent exec node adds slot filters (see RuntimeState::AddBitmapFilter()), they need to be added before calling Open() on the child that will consume them.

Reimplemented in impala::HdfsScanNode, impala::PartitionedAggregationNode, impala::AnalyticEvalNode, impala::AggregationNode, impala::BlockingJoinNode, impala::DataSourceScanNode, impala::ExchangeNode, impala::TopNNode, impala::SortNode, impala::UnionNode, impala::HBaseScanNode, and impala::SelectNode.

Definition at line 154 of file exec-node.cc.

References impala::ExecNode::conjunct_ctxs_, impala::ExecNode::ExecDebugAction(), impala::Expr::Open(), and RETURN_IF_ERROR.

Referenced by impala::SelectNode::Open(), impala::HBaseScanNode::Open(), impala::SortNode::Open(), impala::UnionNode::Open(), impala::TopNNode::Open(), impala::ExchangeNode::Open(), impala::DataSourceScanNode::Open(), impala::BlockingJoinNode::Open(), impala::AggregationNode::Open(), impala::AnalyticEvalNode::Open(), impala::PartitionedAggregationNode::Open(), impala::HdfsScanNode::Open(), and impala::PlanFragmentExecutor::OpenInternal().

Status impala::ExecNode::Prepare ( RuntimeState *  state)
virtualinherited

Sets up internal structures, etc., without doing any actual work. Must be called prior to Open(). Will only be called once in this node's lifetime. All code generation (adding functions to the LlvmCodeGen object) must happen in Prepare(). Retrieving the jit compiled function pointer must happen in Open(). If overridden in subclass, must first call superclass's Prepare().

Reimplemented in impala::HdfsScanNode, impala::PartitionedAggregationNode, impala::ScanNode, impala::AnalyticEvalNode, impala::PartitionedHashJoinNode, impala::AggregationNode, impala::HashJoinNode, impala::BlockingJoinNode, impala::CrossJoinNode, impala::DataSourceScanNode, impala::ExchangeNode, impala::TopNNode, impala::SortNode, impala::UnionNode, impala::HBaseScanNode, and impala::SelectNode.

Definition at line 130 of file exec-node.cc.

References ADD_COUNTER, impala::RuntimeProfile::AddDerivedCounter(), impala::ExecNode::AddExprCtxsToFree(), impala::ExecNode::children_, impala::ExecNode::conjunct_ctxs_, impala::ExecNode::ExecDebugAction(), impala::ExecNode::expr_mem_tracker(), impala::ExecNode::expr_mem_tracker_, impala::RuntimeState::instance_mem_tracker(), impala::ExecNode::mem_tracker_, impala::Status::OK, impala::Expr::Prepare(), RETURN_IF_ERROR, impala::ExecNode::row_desc(), impala::ExecNode::ROW_THROUGHPUT_COUNTER, impala::ExecNode::rows_returned_counter_, impala::ExecNode::rows_returned_rate_, impala::ExecNode::runtime_profile(), impala::ExecNode::runtime_profile_, and impala::RuntimeProfile::UnitsPerSecond().

Referenced by impala::SelectNode::Prepare(), impala::SortNode::Prepare(), impala::UnionNode::Prepare(), impala::TopNNode::Prepare(), impala::ExchangeNode::Prepare(), impala::BlockingJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::ScanNode::Prepare(), impala::PlanFragmentExecutor::Prepare(), and impala::PartitionedAggregationNode::Prepare().

Status impala::ExecNode::QueryMaintenance ( RuntimeState *  state)
protectedvirtualinherited

Frees any local allocations made by expr_ctxs_to_free_ and returns the result of state->CheckQueryState(). Nodes should call this periodically, e.g. once per input row batch. This should not be called outside the main execution thread. Nodes may override this to add extra periodic cleanup, e.g. freeing other local allocations. ExecNodes overriding this function should return ExecNode::QueryMaintenance().

Reimplemented in impala::PartitionedAggregationNode, and impala::AnalyticEvalNode.

Definition at line 401 of file exec-node.cc.

References impala::RuntimeState::CheckQueryState(), impala::ExecNode::expr_ctxs_to_free_, and impala::ExprContext::FreeLocalAllocations().

Referenced by impala::CrossJoinNode::ConstructBuildSide(), impala::HashJoinNode::ConstructBuildSide(), impala::SelectNode::GetNext(), impala::SortNode::GetNext(), impala::UnionNode::GetNext(), impala::HBaseScanNode::GetNext(), impala::TopNNode::GetNext(), impala::ExchangeNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::PartitionedHashJoinNode::GetNext(), impala::HdfsScanNode::GetNextInternal(), impala::HBaseScanNode::Open(), impala::SortNode::Open(), impala::TopNNode::Open(), impala::BlockingJoinNode::Open(), impala::AggregationNode::Open(), impala::PartitionedHashJoinNode::ProcessBuildInput(), impala::AnalyticEvalNode::QueryMaintenance(), impala::PartitionedAggregationNode::QueryMaintenance(), and impala::SortNode::SortInput().

bool impala::ExecNode::ReachedLimit ( )
inlineinherited

Definition at line 159 of file exec-node.h.

References impala::ExecNode::limit_, and impala::ExecNode::num_rows_returned_.

Referenced by impala::HdfsParquetScanner::AssembleRows(), impala::SelectNode::CopyRows(), impala::UnionNode::EvalAndMaterializeExprs(), impala::HdfsTextScanner::FinishScanRange(), impala::SelectNode::GetNext(), impala::UnionNode::GetNext(), impala::SortNode::GetNext(), impala::HBaseScanNode::GetNext(), impala::ExchangeNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::PartitionedHashJoinNode::GetNext(), impala::AnalyticEvalNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::HdfsScanNode::GetNextInternal(), impala::ExchangeNode::GetNextMerging(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::HashJoinNode::LeftJoinGetNext(), impala::HdfsSequenceScanner::ProcessBlockCompressedScanRange(), impala::HdfsTextScanner::ProcessRange(), impala::HdfsAvroScanner::ProcessRange(), impala::HdfsSequenceScanner::ProcessRange(), impala::HdfsRCFileScanner::ProcessRange(), and impala::PlanFragmentExecutor::ReachedLimit().

Status impala::ExecNode::Reset ( RuntimeState *  state)
virtualinherited

Resets all data-specific state, returning this node to the state it was in after calling Prepare() and before calling Open(). Prepare() must have already been called before calling Reset(). Open() and GetNext() may have optionally been called. Close() must not have been called. If overridden in a subclass, must call superclass's Reset() at the end. The default implementation calls Reset() on children. Note that this function may be called many times, so should be fast. For example, accumulated memory does not need to be freed on every call if it's expensive.

Reimplemented in impala::HdfsScanNode, impala::PartitionedAggregationNode, impala::AnalyticEvalNode, impala::PartitionedHashJoinNode, impala::AggregationNode, impala::BlockingJoinNode, impala::HashJoinNode, impala::DataSourceScanNode, impala::CrossJoinNode, impala::ExchangeNode, impala::HBaseScanNode, impala::TopNNode, impala::SortNode, impala::UnionNode, and impala::SelectNode.

Definition at line 159 of file exec-node.cc.

References impala::ExecNode::children_, impala::Status::OK, and RETURN_IF_ERROR.

Referenced by impala::BlockingJoinNode::Reset().

const RowDescriptor& impala::ExecNode::row_desc ( ) const
inlineinherited

Definition at line 156 of file exec-node.h.

References impala::ExecNode::row_descriptor_.

Referenced by impala::CrossJoinNode::BuildListDebugString(), impala::HashJoinNode::CodegenCreateOutputRow(), impala::PartitionedHashJoinNode::CodegenCreateOutputRow(), impala::CrossJoinNode::ConstructBuildSide(), impala::HashJoinNode::ConstructBuildSide(), impala::BlockingJoinNode::GetLeftChildRowString(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::PartitionedAggregationNode::Partition::InitStreams(), impala::TopNNode::Open(), impala::AggregationNode::Open(), impala::AnalyticEvalNode::Open(), impala::PartitionedAggregationNode::Open(), impala::UnionNode::OpenCurrentChild(), impala::SelectNode::Prepare(), impala::SortNode::Prepare(), impala::UnionNode::Prepare(), impala::TopNNode::Prepare(), impala::BlockingJoinNode::Prepare(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::ExecNode::Prepare(), impala::PlanFragmentExecutor::Prepare(), impala::PartitionedAggregationNode::Prepare(), impala::HdfsScanNode::Prepare(), impala::PartitionedHashJoinNode::ProcessBuildInput(), impala::PartitionedAggregationNode::ProcessStream(), impala::PlanFragmentExecutor::row_desc(), impala::SortNode::SortInput(), and impala::HdfsScanner::StartNewRowBatch().

int64_t impala::ExecNode::rows_returned ( ) const
inlineinherited

Definition at line 157 of file exec-node.h.

References impala::ExecNode::num_rows_returned_.

Referenced by impala::CrossJoinNode::GetNext(), impala::AnalyticEvalNode::GetNext(), impala::HashJoinNode::LeftJoinGetNext(), impala::PartitionedAggregationNode::Open(), impala::HdfsSequenceScanner::ProcessDecompressedBlock(), impala::CrossJoinNode::ProcessLeftChildBatch(), impala::HashJoinNode::ProcessProbeBatch(), and impala::HdfsTextScanner::WriteFields().

RuntimeProfile* impala::ExecNode::runtime_profile ( )
inlineinherited

Definition at line 161 of file exec-node.h.

References impala::ExecNode::runtime_profile_.

Referenced by impala::ExecNode::AddRuntimeExecOption(), impala::BlockingJoinNode::BuildSideThread(), impala::ExecNode::CreateTreeHelper(), impala::PartitionedAggregationNode::Partition::InitStreams(), impala::SortNode::Open(), impala::AnalyticEvalNode::Open(), impala::PartitionedAggregationNode::Open(), impala::HdfsScanNode::Open(), impala::HdfsTextScanner::Prepare(), impala::HBaseScanNode::Prepare(), impala::BaseSequenceScanner::Prepare(), impala::ExchangeNode::Prepare(), impala::HdfsParquetScanner::Prepare(), impala::BlockingJoinNode::Prepare(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::ExecNode::Prepare(), impala::ScanNode::Prepare(), impala::PlanFragmentExecutor::Prepare(), impala::PartitionedAggregationNode::Prepare(), impala::HdfsScanner::Prepare(), impala::HdfsScanNode::Prepare(), and impala::PartitionedHashJoinNode::ProcessBuildInput().

void impala::ExecNode::SetDebugOptions ( int  node_id,
TExecNodePhase::type  phase,
TDebugAction::type  action,
ExecNode *  tree 
)
staticinherited

Set debug action for node with given id in 'tree'.

Definition at line 332 of file exec-node.cc.

References impala::ExecNode::children_, impala::ExecNode::debug_action_, impala::ExecNode::debug_phase_, and impala::ExecNode::id_.

Referenced by impala::PlanFragmentExecutor::Prepare().

TPlanNodeType::type impala::ExecNode::type ( ) const
inlineinherited

Definition at line 155 of file exec-node.h.

References impala::ExecNode::type_.

Referenced by impala::ExecNode::CodegenEvalConjuncts(), impala::PartitionedAggregationNode::CodegenUpdateTuple(), and impala::PlanFragmentExecutor::Prepare().

Member Data Documentation

std::vector<ExecNode*> impala::ExecNode::children_
protectedinherited

Definition at line 214 of file exec-node.h.

Referenced by impala::ExecNode::child(), impala::ExecNode::Close(), impala::ExecNode::CollectNodes(), impala::ExecNode::CreateTreeHelper(), impala::HBaseScanNode::DebugString(), impala::UnionNode::GetNext(), impala::UnionNode::Open(), impala::AggregationNode::Open(), impala::PartitionedAggregationNode::Open(), impala::UnionNode::OpenCurrentChild(), impala::ExecNode::Prepare(), impala::PartitionedAggregationNode::ProcessStream(), impala::ExecNode::Reset(), and impala::ExecNode::SetDebugOptions().

std::vector<ExprContext*> impala::ExecNode::conjunct_ctxs_
protectedinherited

Definition at line 212 of file exec-node.h.

Referenced by impala::ExecNode::Close(), impala::HashJoinNode::CodegenProcessProbeBatch(), impala::PartitionedHashJoinNode::CodegenProcessProbeBatch(), impala::ExecNode::conjunct_ctxs(), impala::SelectNode::CopyRows(), impala::UnionNode::EvalAndMaterializeExprs(), impala::HBaseScanNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::TopNNode::Init(), impala::ExecNode::Init(), impala::PartitionedHashJoinNode::Init(), impala::ExecNode::Open(), impala::PartitionedHashJoinNode::OutputUnmatchedBuild(), impala::ExecNode::Prepare(), impala::CrossJoinNode::ProcessLeftChildBatch(), impala::HashJoinNode::ProcessProbeBatch(), and impala::PartitionedHashJoinNode::ProcessProbeBatch().

TDebugAction::type impala::ExecNode::debug_action_
protectedinherited

Definition at line 220 of file exec-node.h.

Referenced by impala::ExecNode::ExecDebugAction(), and impala::ExecNode::SetDebugOptions().

TExecNodePhase::type impala::ExecNode::debug_phase_
protectedinherited

debug-only: if debug_action_ is not INVALID, node will perform action in debug_phase_

Definition at line 219 of file exec-node.h.

Referenced by impala::ExecNode::ExecDebugAction(), and impala::ExecNode::SetDebugOptions().

boost::mutex impala::ExecNode::exec_options_lock_
protectedinherited

Execution options that are determined at runtime. This is added to the runtime profile at Close(). Examples for options logged here would be "Codegen Enabled"

Definition at line 238 of file exec-node.h.

Referenced by impala::ExecNode::AddRuntimeExecOption().

boost::scoped_ptr<MemTracker> impala::ExecNode::expr_mem_tracker_
protectedinherited

MemTracker that should be used for ExprContexts.

Definition at line 233 of file exec-node.h.

Referenced by impala::ExecNode::expr_mem_tracker(), and impala::ExecNode::Prepare().

int impala::ExecNode::id_
protectedinherited

Definition at line 209 of file exec-node.h.

Referenced by impala::PartitionedAggregationNode::CreateHashPartitions(), impala::ExecNode::id(), impala::ExecNode::InitRuntimeProfile(), impala::PartitionedAggregationNode::NextPartition(), impala::ExchangeNode::Prepare(), impala::PartitionedHashJoinNode::PrepareNextPartition(), impala::PartitionedHashJoinNode::ProcessBuildInput(), and impala::ExecNode::SetDebugOptions().

int64_t impala::ExecNode::limit_
protectedinherited

Definition at line 222 of file exec-node.h.

Referenced by impala::SortNode::GetNext(), impala::HdfsScanNode::GetNextInternal(), impala::ExchangeNode::GetNextMerging(), impala::TopNNode::InsertTupleRow(), impala::HdfsScanNode::limit(), impala::ExecNode::limit(), impala::TopNNode::Open(), and impala::ExecNode::ReachedLimit().

boost::scoped_ptr<MemTracker> impala::ExecNode::mem_tracker_
protectedinherited

Account for peak memory used by this node.

Definition at line 230 of file exec-node.h.

Referenced by impala::ExecNode::mem_tracker(), and impala::ExecNode::Prepare().

int64_t impala::ExecNode::num_rows_returned_
protectedinherited

Definition at line 223 of file exec-node.h.

Referenced by impala::ExecNode::Close(), impala::SelectNode::CopyRows(), impala::UnionNode::EvalAndMaterializeExprs(), impala::SortNode::GetNext(), impala::HBaseScanNode::GetNext(), impala::TopNNode::GetNext(), impala::ExchangeNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::PartitionedHashJoinNode::GetNext(), impala::AnalyticEvalNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::HdfsScanNode::GetNextInternal(), impala::ExchangeNode::GetNextMerging(), impala::AnalyticEvalNode::GetNextOutputBatch(), impala::HashJoinNode::LeftJoinGetNext(), impala::PartitionedHashJoinNode::OutputUnmatchedBuild(), impala::ExecNode::ReachedLimit(), and impala::ExecNode::rows_returned().

ObjectPool* impala::ExecNode::pool_
protectedinherited

Definition at line 211 of file exec-node.h.

Referenced by impala::SortNode::Init(), impala::UnionNode::Init(), impala::TopNNode::Init(), impala::ExchangeNode::Init(), impala::HashJoinNode::Init(), impala::AggregationNode::Init(), impala::ExecNode::Init(), impala::PartitionedHashJoinNode::Init(), impala::AnalyticEvalNode::Init(), impala::PartitionedAggregationNode::Init(), impala::ExecNode::InitRuntimeProfile(), impala::HdfsScanNode::Open(), impala::PartitionedHashJoinNode::Prepare(), and impala::PartitionedHashJoinNode::ProcessBuildInput().

RowDescriptor impala::ExecNode::row_descriptor_
protectedinherited

Definition at line 215 of file exec-node.h.

Referenced by impala::SortNode::Open(), impala::SortNode::Prepare(), impala::TopNNode::Prepare(), impala::ExchangeNode::Prepare(), and impala::ExecNode::row_desc().

const string impala::ExecNode::ROW_THROUGHPUT_COUNTER = "RowsReturnedRate"
staticinherited

Names of counters shared by all exec nodes.

Definition at line 169 of file exec-node.h.

Referenced by impala::ExecNode::Prepare().

RuntimeProfile::Counter* impala::ExecNode::rows_returned_counter_
protectedinherited

Definition at line 226 of file exec-node.h.

Referenced by impala::ExecNode::Close(), impala::SelectNode::CopyRows(), impala::UnionNode::EvalAndMaterializeExprs(), impala::SortNode::GetNext(), impala::HBaseScanNode::GetNext(), impala::TopNNode::GetNext(), impala::ExchangeNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::AnalyticEvalNode::GetNext(), impala::PartitionedHashJoinNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::HdfsScanNode::GetNextInternal(), impala::ExchangeNode::GetNextMerging(), impala::HashJoinNode::LeftJoinGetNext(), impala::PartitionedHashJoinNode::OutputUnmatchedBuild(), and impala::ExecNode::Prepare().

RuntimeProfile::Counter* impala::ExecNode::rows_returned_rate_
protectedinherited

Definition at line 227 of file exec-node.h.

Referenced by impala::ExecNode::Prepare().

std::string impala::ExecNode::runtime_exec_options_
protectedinherited

Definition at line 239 of file exec-node.h.

Referenced by impala::ExecNode::AddRuntimeExecOption().

boost::scoped_ptr<RuntimeProfile> impala::ExecNode::runtime_profile_
protectedinherited

Definition at line 225 of file exec-node.h.

Referenced by impala::HBaseScanNode::Close(), impala::SelectNode::GetNext(), impala::UnionNode::GetNext(), impala::SortNode::GetNext(), impala::HBaseScanNode::GetNext(), impala::TopNNode::GetNext(), impala::ExchangeNode::GetNext(), impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), impala::AggregationNode::GetNext(), impala::AnalyticEvalNode::GetNext(), impala::PartitionedHashJoinNode::GetNext(), impala::PartitionedAggregationNode::GetNext(), impala::HdfsScanNode::GetNext(), impala::ExecNode::InitRuntimeProfile(), impala::SelectNode::Open(), impala::HBaseScanNode::Open(), impala::UnionNode::Open(), impala::SortNode::Open(), impala::TopNNode::Open(), impala::ExchangeNode::Open(), impala::DataSourceScanNode::Open(), impala::BlockingJoinNode::Open(), impala::AggregationNode::Open(), impala::AnalyticEvalNode::Open(), impala::PartitionedAggregationNode::Open(), impala::SelectNode::Prepare(), impala::UnionNode::Prepare(), impala::SortNode::Prepare(), impala::TopNNode::Prepare(), impala::BlockingJoinNode::Prepare(), impala::HashJoinNode::Prepare(), impala::AggregationNode::Prepare(), impala::AnalyticEvalNode::Prepare(), impala::PartitionedHashJoinNode::Prepare(), impala::ExecNode::Prepare(), impala::ScanNode::Prepare(), impala::PartitionedAggregationNode::Prepare(), impala::HdfsScanNode::Prepare(), impala::ExecNode::runtime_profile(), and impala::HdfsScanNode::StopAndFinalizeCounters().

TPlanNodeType::type impala::ExecNode::type_
protectedinherited

Definition at line 210 of file exec-node.h.

Referenced by impala::ExecNode::CollectNodes(), and impala::ExecNode::type().

The documentation for this class was generated from the following files: