[IMPALA-4369] DCHECK in Parquet scanner with MT_DOP > 1 when reading file with bad metadata.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.8.0
• Fix Version/s: Impala 2.8.0
• Component/s: Backend
• Labels: multithreading
• Target Version: Impala 2.8.0
• Assignee: Alexander Behm
• Reporter: Alexander Behm
• Created: 26/Oct/16 00:51
• Updated: 26/Oct/16 22:24
• Resolved: 26/Oct/16 22:24

Description

Repro:

1. Start impala cluster with MT_DOP > 0
2. ./run-tests.py query_test/test_scanners.py -k test_parquet --table_formats=parquet/none

DCHECK:

F1025 17:31:47.367564 29896 hdfs-scanner.h:155] Check failed: scan_node_->HasRowBatchQueue() 

Stack:

#7  0x000000000165d3ac in impala::HdfsScanner::batch (this=0xd1b5180) at /home/abehm/impala/be/src/exec/hdfs-scanner.h:155
#8  0x0000000001669a21 in impala::HdfsScanNodeBase::CreateAndOpenScanner (this=0xc0e9200, partition=0xf5f2600, context=0x8122870, scanner=0xc0e96c0)
    at /home/abehm/impala/be/src/exec/hdfs-scan-node-base.cc:638
#9  0x000000000167f495 in impala::HdfsScanNodeMt::GetNext (this=0xc0e9200, state=0xe546400, row_batch=0x10bcd960, eos=0x7f7df7726e7f)
    at /home/abehm/impala/be/src/exec/hdfs-scan-node-mt.cc:90
#10 0x00000000019b1780 in impala::PlanFragmentExecutor::ExecInternal (this=0xc9cca88) at /home/abehm/impala/be/src/runtime/plan-fragment-executor.cc:351
#11 0x00000000019b145f in impala::PlanFragmentExecutor::Exec (this=0xc9cca88) at /home/abehm/impala/be/src/runtime/plan-fragment-executor.cc:327
#12 0x000000000150f99a in impala::FragmentMgr::FragmentExecState::Exec (this=0xc9cc700) at /home/abehm/impala/be/src/service/fragment-exec-state.cc:59
#13 0x00000000015070e8 in impala::FragmentMgr::FragmentThread (this=0x83b2cc0, fragment_instance_id=...) at /home/abehm/impala/be/src/service/fragment-mgr.cc:86
#14 0x000000000150ae6a in boost::_mfi::mf1<void, impala::FragmentMgr, impala::TUniqueId>::operator() (this=0xe0b41e0, p=0x83b2cc0, a1=...)
    at /home/abehm/impala/toolchain/boost-1.57.0/include/boost/bind/mem_fn_template.hpp:165
#15 0x000000000150ac27 in boost::_bi::list2<boost::_bi::value<impala::FragmentMgr*>, boost::_bi::value<impala::TUniqueId> >::operator()<boost::_mfi::mf1<void, impala::FragmentMgr, impala::TUniqueId>, boost::_bi::list0> (this=0xe0b41f0, f=..., a=...)
    at /home/abehm/impala/toolchain/boost-1.57.0/include/boost/bind/bind.hpp:313
#16 0x000000000150a551 in boost::_bi::bind_t<void, boost::_mfi::mf1<void, impala::FragmentMgr, impala::TUniqueId>, boost::_bi::list2<boost::_bi::value<impala::FragmentMgr*>, boost::_bi::value<impala::TUniqueId> > >::operator() (this=0xe0b41e0)
    at /home/abehm/impala/toolchain/boost-1.57.0/include/boost/bind/bind_template.hpp:20
#17 0x0000000001509ee4 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf1<void, impala::FragmentMgr, impala::TUniqueId>, boost::_bi::list2<boost::_bi::value<impala::FragmentMgr*>, boost::_bi::value<impala::TUniqueId> > >, void>::invoke (function_obj_ptr=...)
    at /home/abehm/impala/toolchain/boost-1.57.0/include/boost/function/function_template.hpp:153
#18 0x000000000130ca1a in boost::function0<void>::operator() (this=0x7f7df7727d30)
    at /home/abehm/impala/toolchain/boost-1.57.0/include/boost/function/function_template.hpp:767