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DEADLOCKS Caused by SELECTS

From: Andre Reitz (reitzinworks.de)
Date: Mon Feb 23 2004 - 04:06:51 CST


Hi all,

We have a serious problem with sapdb version 7.4.3.31 (on SuSE-Linux)
- We have clients with long running transactions, all with isolationlevel 1.
- Many of them do many SELECTS without commit.
- These SELECTS sometimes keep Locks, which block other clients when they
  trying to write on those tables.
- I was told, that these behaviour was a bug of version 7.3, and that I should
  upgrade to 7.4.
- It seems that the problem still exists.

Questions:
- Is there a workaround?
- May I influence this behaviour with parameters like:
  MAXLOCKS
  _LOCK_SUPPLY_BLOCK
  DEADLOCK_DETECTION

Thank you very much in advance,
Greetings, Andre'

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Inworks GmbH
Andre Reitz, Leiter Entwicklung
Hörvelsinger Weg 39, 89081 Ulm, Germany
Tel +49 (0) 731 / 93807-21
Fax +49(0)731/93807-18
Internet: http://www.inworks.de

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