Oracle Text Searches Causing Sever Locking/Contention.
(Doc ID 1446170.1)
Last updated on MARCH 03, 2019
Applies to:Oracle Text - Version 10.2.0.5 to 18.104.22.168 [Release 10.2 to 11.2]
Information in this document applies to any platform.
Frequency of the problem does vary between once per week and 10+ times per week.
The problem is that searches run on Oracle Text data generate locks where subsequent searches lock against a previous session.
Left alone, these locks do not clear by themselves.
The query that is always involved in the locks is:
AND rownum < 10000
<Patch 9499302> did not resolve the issue, but did appear to reduce the number/frequency of occurrences by about a third overall, so did have a positive effect.
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