I have an old site wordpress site I am in the process of migrating.

There are about 50000 urls that need to be redirected.

For this I am using DBM files which seem to be working fine, however during load testing I noticed that I am losing about .5 seconds on each request.

Reviewing the logs it looks like the DBM file that has the 50000 is being hit every time.

I changed the DBM from 50000 to 10000 and notice I gained about .25 seconds on each request from the 50000 DBM file.

I would like to be able to do something like this however no matter how I mix and match the code I cannot get it working:

<If "%{REQUEST_URI} =~ m#^abc#">     RewriteMap abcredirects "dbm:/etc/httpd/conf/dbm/abcredirects.dbm"     <IfModule mod_rewrite.c>         RewriteEngine On         RewriteCond $  {abcredirects:$  1} !=""         RewriteRule ^(.*) /$  {abcredirects:$  1} [R=301,L]     </IfModule> </If>  <If "%{REQUEST_URI} =~ m#^xyz#">     RewriteMap xyzredirects "dbm:/etc/httpd/conf/dbm/xyzredirects.dbm"     <IfModule mod_rewrite.c>         RewriteEngine On         RewriteCond $  {xyzredirects:$  1} !=""         RewriteRule ^(.*) /$  {xyzredirects:$  1} [R=301,L]     </IfModule> </If> 

Using the above as sudo code How can I get this to work?

ie.

If url example.com/abc12345.htm look in abcredirects.dbm else exit to VirtualHost

If url example.com/xyz12345.htm look in xyzredirects.dbm else exit to VirtualHost

If url example.com/abc12345.htm DO NOT look in xyzredirects.dbm

If url example.com/xyz12345.htm DO NOT look in abcredirects.dbm

If url example.com/hik12345.htm DO NOT look in xyzredirects.dbm or abcredirects.dbm

NO .htaccess unfortunately I cannot use an .htaccess

Apache If statement not working