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| author | Luca Toscano <elukey@apache.org> | 2016-06-22 10:43:34 +0000 |
|---|---|---|
| committer | Luca Toscano <elukey@apache.org> | 2016-06-22 10:43:34 +0000 |
| commit | 1ac575b7823de599905ad8b5153c41cbef347141 (patch) | |
| tree | 68a16d19ba28df8fbc5ce3b7fc77b5696127c4af /docs/manual/mod/mod_proxy.xml | |
| parent | 8aab0aaddfca112da3e8b6d570a704f7701fc57b (diff) | |
| download | httpd-1ac575b7823de599905ad8b5153c41cbef347141.tar.gz | |
Add mod-proxy DNS caching information to the documentation (follow up from users@)
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1749650 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'docs/manual/mod/mod_proxy.xml')
| -rw-r--r-- | docs/manual/mod/mod_proxy.xml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/manual/mod/mod_proxy.xml b/docs/manual/mod/mod_proxy.xml index e17cf7bdcf..4aef0883a7 100644 --- a/docs/manual/mod/mod_proxy.xml +++ b/docs/manual/mod/mod_proxy.xml @@ -303,6 +303,18 @@ ProxyPass "/examples" "http://backend.example.com/examples" timeout=10 Members are added to a balancer using <directive module="mod_proxy">BalancerMember</directive>.</p> + <note><title>DNS resolution for origin domains</title> + <p>DNS resolution happens when the socket to + the origin domain is created for the first time. + When connection pooling is used, each backend domain is resolved + only once per child process, and reused for all further connections + until the child is recycled. This information should to be considered + while planning DNS maintenance tasks involving backend domains. + Please also check <directive module="mod_proxy">ProxyPass</directive> + parameters for more details about connection reuse. + </p> + </note> + </section> <!-- /workers --> <section id="access"><title>Controlling Access to Your Proxy</title> |