SAP Knowledge Base Article - Preview

2952074 - High CPU Caused by Optimize Compression

Symptom

You observed many following similar stacks in runtime dump and it's responsible for CPU spike:

1: 0x00007f5ec7581527 in AttributeEngine::RowOrderOptimizer::determineValueIdCounts(int, ltt::vector<AttributeEngine::ValueIdCount>&, ltt::vector<int> const&, unsigned int, unsigned int, ltt::vector<int>&)+0xd3 at RowOrderOptimizer.cpp:118 (libhdbcs.so)
2: 0x00007f5ec758f52e in AttributeEngine::SortRestRangeJob::run()+0x1ca at ClusterFValueOptimizer.cpp:397 (libhdbcs.so)


            


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Environment

SAP HANA Platform 2.0 SPS 03 or higher

Product

SAP HANA, platform edition 2.0

Keywords

RowOrderOptimizer , SortRestRangeJob, High CPU, CPU Spike , KBA , HAN-DB-PERF , SAP HANA Database Performance , HAN-DB , SAP HANA Database , How To

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