<HTML
><HEAD
><TITLE
>Modifying Your Running System</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="The Bugzilla Guide - 2.17.4 Development Release"
HREF="index.html"><LINK
REL="UP"
TITLE="The Bugzilla Database"
HREF="database.html"><LINK
REL="PREVIOUS"
TITLE="The Bugzilla Database"
HREF="database.html"><LINK
REL="NEXT"
TITLE="MySQL Bugzilla Database Introduction"
HREF="dbdoc.html"></HEAD
><BODY
CLASS="section"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>The Bugzilla Guide - 2.17.4 Development Release</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="database.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Appendix B. The Bugzilla Database</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="dbdoc.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="dbmodify"
></A
>B.1. Modifying Your Running System</H1
><P
>Bugzilla optimizes database lookups by storing all relatively
static information in the
<TT
CLASS="filename"
>versioncache</TT
> file, located in the
<TT
CLASS="filename"
>data/</TT
>
subdirectory under your installation directory.</P
><P
>If you make a change to the structural data in your database (the
versions table for example), or to the
<SPAN
CLASS="QUOTE"
>"constants"</SPAN
>
encoded in <TT
CLASS="filename"
>defparams.pl</TT
>, you will need to remove
the cached content from the data directory (by doing a
<SPAN
CLASS="QUOTE"
>"rm data/versioncache"</SPAN
>
), or your changes won't show up.</P
><P
> <TT
CLASS="filename"
>versioncache</TT
>
gets automatically regenerated whenever it's more than
an hour old, so Bugzilla will eventually notice your changes by itself,
but generally you want it to notice right away, so that you can test
things.</P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="database.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="dbdoc.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>The Bugzilla Database</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="database.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>MySQL Bugzilla Database Introduction</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>