Symptom
- General system slowness across gui, web gui, and interfaces.
- Sharp response time increase driven by high database time across task types (https, dialog, update, update2).
- Wait time observed as a consequence of occupied work processes.
- SMON shows many work processes with sequential read status.
- ST03/Time Profile shows spikes in response and DB time;
- STAD shows high “database request time” with many sequential reads, inserts, and updates.
- No CPU or Memory usage spike from the result of SQL: HANA_LoadHistory_Services (SAP Note 1969700), but there is high number for "UNLOAD" column.
- HANA traces show frequent memory shrink events during the time window.
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Environment
- SAP HANA Database 1.0
- SAP HANA Database 2.0
Keywords
hana allocationlimit, pal, global_allocation_limit, memory unloads, resourcecontainershrink, system slowness, high db time, update2 wait time, sequential read, smon, st03, stad, indexserver.ini, cpi integration, peak hours , KBA , HAN-DB-PERF , SAP HANA Database Performance , Problem
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