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<TITLE>Web DBI - Too many connections</TITLE>
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<P>Slide 71 of 102</P>
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<H2>Web DBI - Too many connections</H2>
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<P><UL>
<LI><H2>Busy web sites run many web server processes
</H2>
<UL>
<LI>possibly on many machines...
<LI>Machines * Processes = Many Connections
<LI>Machines * Processes * Users = Very Many Connections
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<LI><H2>Limits on database connections
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<LI>Memory consumption of web server processes
<LI>Database server resources (memory, threads etc.) or licensing
<LI>
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<LI><H2>So
partition web servers into General and Database groups
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<LI>
</UL></UL><UL>
<LI><H2>Direct requests that require database access to the Database web servers
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<LI>Use Reverse Proxy / Redirect / Rewrite to achieve this
<LI>Allows each subset of servers to be tuned to best fit workload
<LI>And/or be run on appropriate hardware platforms
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<H2>.</H2>
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