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2038126 - Blade swapping (blades with big main memory) - BWA

Symptom

Your SAP BW Accelerator (BWA) configuration contains blades with big main memory (like 98 or 256 GB RAM).

The following points are relevant for this big main memory case:

→ Recommendations for the memory parameters
→ How to reduce the impact that can be caused by queries which consuming a lot of memory


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Environment

SAP NetWeaver BW Accelerator 7.20
SAP NetWeaver BW Accelerator 7.00

Keywords

BIA, SAP NetWeaver BI Accelerator, TREXADMIN, TREX Administration, RAM, AS Parameter, MemTotal, MemFree, SwapCached, linux memory Parameters, /proc/sys/vm/swappiness, proc/sys/vm/dirty_background_ratio, /proc/sys/vm/dirty_ratio, business warehouse accelerator, parameters, vm.pagecache_limit_mb , vm.pagecache_limit_ignore_dirty , concurrent query execution, max_cells_one_index, reduce number of cells bwa, threads_aggregate, TREXIndexServer.ini, revision 31, revision 69, memory leak, FemsCompression, latest revision, statistic index, python  trace , KBA , BC-TRX-BIA , TREX BI Accelerator , BW-BEX-OT-BIA , BW Accelerator , How To

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