Github user jpeach commented on a diff in the pull request: https://github.com/apache/trafficserver/pull/834#discussion_r78286827 --- Diff: proxy/ParentConsistentHash.cc --- @@ -63,21 +66,104 @@ ParentConsistentHash::getPathHash(HttpRequestData *hrdata, ATSHash64 *h) { const char *tmp = NULL; int len; - URL *url = hrdata->hdr->url_get(); + URL *url = hrdata->hdr->url_get(); + int num_dirs = 0; + + // Use over-ride URL from HttpTransact::State's cache_info.parent_selection_url, if present. + URL *ps_url = NULL; + Debug("parent_select", "hrdata->cache_info_parent_selection_url = %p", hrdata->cache_info_parent_selection_url); + if (hrdata->cache_info_parent_selection_url) { + ps_url = *(hrdata->cache_info_parent_selection_url); + Debug("parent_select", "ps_url = %p", ps_url); + if (ps_url) { + tmp = ps_url->string_get_ref(&len); + if (tmp && len > 0) { + // Print the over-ride URL + Debug("parent_select", "Using Over-Ride String='%.*s'.", len, tmp); + h->update(tmp, len); + h->final(); + return h->get(); + } + } + } // Always hash on '/' because paths returned by ATS are always stripped of it h->update("/", 1); tmp = url->path_get(&len); - if (tmp) { + + if (tmp && len > 0) { + // Print the Original path. + Debug("parent_select", "Original Path='%.*s'.", len, tmp); + + // Process the 'maxdirs' directive. + if (max_dirs != 0) { + // Determine number of directory components in the path. + // NOTE: Leading '/' is gone already. + for (int x = 0; x < len; x++) { + if (tmp[x] == '/') + num_dirs++; --- End diff -- This, and all subsequent conditions should be enclosed in ``{`` ``}``.
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