Rewrite URL and change pool trouble

That's odd. I just cut+pasted from the post on v9.2.2 and it loaded fine. I'd try to remove all trailing spaces from your lines and see if that fixes it. As for the substitution, here's a go at it.

when HTTP_REQUEST {
  if { ([HTTP::uri] starts_with "/blog") and 
      !([HTTP::uri] starts_with "/blogs/menapauseinsightblog") } {
      HTTP::uri "/blogs/menapauseinsightblog[string range [HTTP::uri] 5 end]"
  }
}

This will replace all uris that start with "/blog" but don't start with "/blogs/menapauseinsightblog" with the new uri appended with character 6 to the end of the original uri.

Keep in mind that this will blanketly replace the strings as such

/blog?user=foo => /blogs/menapauseinsightblog?user=foo

/blogs?user=foo => /blogs/menapauseinsightblogs?user=foo

/bloggin?user=foo => /blogs/menapauseinsightblogsgin?user=foo

Just keep that in mind...

-Joe