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Documented that we do not support atomic updates of persistent variables at this time.

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ivanr 2007-06-20 10:59:37 +00:00
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commit 5cb4823c4b
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doc/modsecurity2-apache-reference.xml
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@ -3630,6 +3630,17 @@ SecRule REQUEST_URI "^/cgi-bin/script\.pl" \
moreinfo="none"> SESSION</literal>, and <literal
moreinfo="none">USER</literal>.</para>
</note>
<note>
<para>Please note that ModSecurity does not implement atomic updates
of persistent variables at this time. Variables are read from storage
whenever <literal>initcol</literal> is encountered in the rules and
persisted at the end of request processing. On busy servers requests
often run in parallel, leading to situations where one request
overwrites the changes made by another request. We anticipate
implementing atomic updates of counter values in a future
version.</para>
</note>
</section>
<section>