The Caboteria / Tech Web / DatabaseTips (20 Mar 2004, TobyCabot)
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Here's a shallow but interesting article on Oracle performance tuning on GNU/Linux systems: http://www.linuxjournal.com//article.php?sid=5840

postgres' nightly maintenance was emitting:

NOTICE:  RegisterSharedInvalid: SI buffer overflow
NOTICE:  InvalidateSharedInvalid: cache state reset
NOTICE:  RegisterSharedInvalid: SI buffer overflow
NOTICE:  InvalidateSharedInvalid: cache state reset
NOTICE:  RegisterSharedInvalid: SI buffer overflow
NOTICE:  InvalidateSharedInvalid: cache state reset

A note on one of the mailing lists indicates that this can happen if someone has an open transaction. In my case bouncing tomcat did the trick.

-- TobyCabot - 21 Sep 2001 - 25 Feb 2002

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