SAP Knowledge Base Article - Preview

2079396 - How to handle HANA Alert 49: 'long-running blocking transaction'

Symptom

This Knowledge Base Article (KBA) is part of a series of HANA Operation Recommendations. Its focus is to provide best practise instruction on handling of HANA Alerts related to blocked transactions.

A long-lasting lock situation is presently observed on the SAP HANA Database:

  1. Alert “Long-running blocking situations” (Alert ID 49) – “Transaction <X> has been blocked by transaction <Y> for more than <N> minutes“ has been raised by the SAP HANA Database.
  2. End-Users report that an application behaves slow, unresponsive. It may seem to hang or even results in a dump (time-out).

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Environment

Instructions in this Knowledge Base Article have been created on a SAP HANA Database with Revision 71 (Support Package Stack SPS 7) and may differ in other revisions.

Keywords

KBA , HAN-DB-MON , SAP HANA Monitoring , SV-PERF , Performance Messages , How To

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