SAP Knowledge Base Article - Preview

2967014 - Large size of memory usage on heap allocators Pool/ESX

Symptom

  • High memory usage for allocator Pool/ESX

  • Call stack of threads
    ESX::EsxFieldExpression
    ESX::HashJoin::fetch
    ESX::ItabMaterialize::open
    ESX::NestedLoopJoin::open
    ESX::NodeData::TupleAccessor::insertTuple
    ESX::OperatorNode::fetchAll
    ESX::ParallelFetchJob::run
    ESX::ParallelItabBuildJob::runInternal
    ESX::Plan::execute
    ESX::Plan::generateItab
    ESX::Plan::getOutputItab
    ESX::Select::open
    ESX::ThreadData::TupleAccessor::insertTuple
    ESX::UnionAll::open
    ESX::Utils::setValues
    ESX::Window::fetch
    ESX::Window::increaseFetchThreads
    ESX::Window::prepareFetchInfo
    ptime::Esx_search::do_open
    ptime::PtimeEsxPlan::fetch


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Environment

  • HANA database platform 1.0
  • HANA database platform 2.0

Product

SAP HANA, platform edition all versions

Keywords

 USE_ESX_PLAN, OOM, AMDP, Procedure, dump, run time, rtedump, Failed to allocate , KBA , HAN-DB-PERF , SAP HANA Database Performance , HAN-DB , SAP HANA Database , HAN-DB-ENG-BW , SAP HANA BW Engine , Problem

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