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| sending_extra_information_to_dns2_with_the_xml-rpc_api 2015/01/24 21:38 | sending_extra_information_to_dns2_with_the_xml-rpc_api 2015/01/30 00:42 current | ||
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| Each account can send a string with extra information to GeoScaling using an [[wp>XML-RPC]] call. This extra string can then be accessed from smart subdomain scripts through the $extra_info variable. The string can be mostly anything. | Each account can send a string with extra information to GeoScaling using an [[wp>XML-RPC]] call. This extra string can then be accessed from smart subdomain scripts through the $extra_info variable. The string can be mostly anything. | ||
| - | To send the extra information you need to call the function named //geoscaling.extra_info//. The URL of our XML-RPC server is http://xml-rpc.geoscaling.com/. The function takes 3 arguments: | + | To send the extra information you need to call the function named //geoscaling.extra_info//. The URL of our XML-RPC server is http://api.geoscaling.com/dns2/xml-rpc/. The function takes 3 arguments: |
| * username - string - your username | * username - string - your username | ||
| Line 14: | Line 14: | ||
| include("lib/xmlrpc/xmlrpc.inc"); | include("lib/xmlrpc/xmlrpc.inc"); | ||
| - | $client = new xmlrpc_client("http://xml-rpc.geoscaling.com/"); | + | $client = new xmlrpc_client("http://api.geoscaling.com/dns2/xml-rpc/"); |
| //$client->setdebug(1); | //$client->setdebug(1); | ||
| Line 55: | Line 55: | ||
| define("EXTRA_INFO_NOT_STRING", 4, true); | define("EXTRA_INFO_NOT_STRING", 4, true); | ||
| define("EXTRA_INFO_TOO_LONG", 5, true); | define("EXTRA_INFO_TOO_LONG", 5, true); | ||
| + | </code> | ||
| + | |||
| + | The following is a user contribution of a combined, closest server + failover + take me offline during deployment. | ||
| + | - first the smart subdomain script | ||
| + | <code php> | ||
| + | /* | ||
| + | GeoScaling "smart subdomain script" | ||
| + | PURPOSE: | ||
| + | 1/ associate url/IP with the physically closest server, monitoring with www.monitis.com reveals minimum of 2x improvement in latency if we do this | ||
| + | 2/ take a server out of the list of possible servers if GeoScaling monitoring shows it as down | ||
| + | 3/ take a sever out of the list (immediate effect) if we are about to deploy an upgrade of the app software by sending "extra_info" | ||
| + | |||
| + | Contributed BY: keitht@sasimedia.net | ||
| + | AVAILABLE INFRASTRUCTURE CONSULTING ON | ||
| + | 1/ automated build and deploy the N servers in the cloud | ||
| + | 2/ Unix or Windows cloud server setup (linode / Rackspace / other) | ||
| + | 3/ Techniques for achieving fastest initial page load | ||
| + | 4/ No SQL keystore for database replication across cloud servers (Hazelcast + Voldemort + Oracle BDB) | ||
| + | 5/ HA / 100 % uptime | ||
| + | 6/ Smart browser clients (Flex / GWT), with service calls automatically tied to the fastest responding server (not necessarily the closest) | ||
| + | */ | ||
| + | |||
| + | $info = unserialize($extra_info); | ||
| + | |||
| + | if($uptime['Linode-s1.info']==1 && strcmp($info['linode-s1-offline'],'true') != 0){ | ||
| + | $new_server['lat'] = 37.4919627; | ||
| + | $new_server['lon'] = -121.93811; | ||
| + | $new_server['loc'] = "Fremont, California"; | ||
| + | $new_server['ip'] = "1.1.1.1"; //linode-s1 CA | ||
| + | $servers[] = $new_server; | ||
| + | } | ||
| + | |||
| + | if($uptime['rackspace-s1.info']==1 && strcmp($info['rackspace-s1-offline'],'true') != 0){ | ||
| + | $new_server['lat'] = 32.7833333; | ||
| + | $new_server['lon'] = -96.8; | ||
| + | $new_server['loc'] = "Dallas, TX"; | ||
| + | $new_server['ip'] = "1.1.1.1"; //rackspace-s1 DALLAS | ||
| + | $servers[] = $new_server; | ||
| + | } | ||
| + | |||
| + | if($uptime['rackspace-s1.info']==1 && strcmp($info['rackspace-s2-offline'],'true') != 0){ | ||
| + | $new_server['lat'] = 41.85; | ||
| + | $new_server['lon'] = -87.65; | ||
| + | $new_server['loc'] = "Chicago, IL"; | ||
| + | $new_server['ip'] = "1.1.1.1"; // rackspace-s2 CHICAGO | ||
| + | $servers[] = $new_server; | ||
| + | } | ||
| + | |||
| + | if($uptime['Linode-s2.info']==1 && strcmp($info['linode-s2-offline'],'true') != 0){ | ||
| + | $new_server['lat'] = 33.73; | ||
| + | $new_server['lon'] = -84.38; | ||
| + | $new_server['loc'] = "Atlanta, GA."; | ||
| + | $new_server['ip'] = "11.1.1.1"; // linode-s2 ATLANTA | ||
| + | $servers[] = $new_server; | ||
| + | } | ||
| + | |||
| + | $current_lat = $city_info['latitude']; | ||
| + | $current_lon = $city_info['longitude']; | ||
| + | |||
| + | $minimum_distance = PHP_INT_MAX; | ||
| + | $minimum_distance_server_id = 0; | ||
| + | |||
| + | for($i=0 ; $i<sizeof($servers); $i++) | ||
| + | { | ||
| + | $server = $servers[$i]; | ||
| + | $distance_to_user = @distance($current_lat, $current_lon, $server['lat'], $server['lon'], "k"); | ||
| + | if($distance_to_user<$minimum_distance) | ||
| + | { | ||
| + | $minimum_distance = $distance_to_user; | ||
| + | $minimum_distance_server_id = $i; | ||
| + | } | ||
| + | } | ||
| + | |||
| + | $output[] = array("A", $servers[$minimum_distance_server_id]['ip']); | ||
| + | |||
| + | /*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/ | ||
| + | /*:: :*/ | ||
| + | /*:: this routine calculates the distance between two points (given the :*/ | ||
| + | /*:: latitude/longitude of those points). it is being used to calculate :*/ | ||
| + | /*:: the distance between two zip codes or postal codes using our :*/ | ||
| + | /*:: zipcodeworld(tm) and postalcodeworld(tm) products. :*/ | ||
| + | /*:: :*/ | ||
| + | /*:: definitions: :*/ | ||
| + | /*:: south latitudes are negative, east longitudes are positive :*/ | ||
| + | /*:: :*/ | ||
| + | /*:: passed to function: :*/ | ||
| + | /*:: lat1, lon1 = latitude and longitude of point 1 (in decimal degrees) :*/ | ||
| + | /*:: lat2, lon2 = latitude and longitude of point 2 (in decimal degrees) :*/ | ||
| + | /*:: unit = the unit you desire for results :*/ | ||
| + | /*:: where: 'm' is statute miles :*/ | ||
| + | /*:: 'k' is kilometers (default) :*/ | ||
| + | /*:: 'n' is nautical miles :*/ | ||
| + | /*:: united states zip code/ canadian postal code databases with latitude & :*/ | ||
| + | /*:: longitude are available at http://www.zipcodeworld.com :*/ | ||
| + | /*:: :*/ | ||
| + | /*:: For enquiries, please contact sales@zipcodeworld.com :*/ | ||
| + | /*:: :*/ | ||
| + | /*:: official web site: http://www.zipcodeworld.com :*/ | ||
| + | /*:: :*/ | ||
| + | /*:: hexa software development center © all rights reserved 2004 :*/ | ||
| + | /*:: :*/ | ||
| + | /*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::*/ | ||
| + | |||
| + | //echo distance(32.9697, -96.80322, 29.46786, -98.53506, "m") . " miles<br>"; | ||
| + | //echo distance(32.9697, -96.80322, 29.46786, -98.53506, "k") . " kilometers<br>"; | ||
| + | //echo distance(32.9697, -96.80322, 29.46786, -98.53506, "n") . " nautical miles<br>"; | ||
| + | |||
| + | |||
| + | function distance($lat1, $lon1, $lat2, $lon2, $unit) | ||
| + | { | ||
| + | |||
| + | $theta = $lon1 - $lon2; | ||
| + | $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) + cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta)); | ||
| + | $dist = acos($dist); | ||
| + | $dist = rad2deg($dist); | ||
| + | $miles = $dist * 60 * 1.1515; | ||
| + | $unit = strtoupper($unit); | ||
| + | |||
| + | if ($unit == "K") { | ||
| + | return ($miles * 1.609344); | ||
| + | } else if ($unit == "N") { | ||
| + | return ($miles * 0.8684); | ||
| + | } else { | ||
| + | return $miles; | ||
| + | } | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | Here is the php script to send the extra info taking a selected server offline with the url like this | ||
| + | http://localhost/offlineServerViaGeoScaling.php?server=linode-s2&offline=false | ||
| + | <code php> | ||
| + | <?PHP | ||
| + | /* | ||
| + | GeoScaling "extra_info script" | ||
| + | PURPOSE: | ||
| + | 1/ send extra_info to take a sever out of the list (immediate effect) if we are about to deploy an upgrade of the app software | ||
| + | |||
| + | Contributed BY: keitht@sasimedia.net | ||
| + | AVAILABLE INFRASTRUCTURE CONSULTING ON | ||
| + | 1/ automated build and deploy the N servers in the cloud | ||
| + | 2/ Unix or Windows cloud server setup (linode / Rackspace / other) | ||
| + | 3/ Techniques for achieving fastest initial page load | ||
| + | 4/ No SQL keystore for database replication across cloud servers (Hazelcast + Voldemort + Oracle BDB) | ||
| + | 5/ HA / 100 % uptime | ||
| + | 6/ Smart browser clients (Flex / GWT), with service calls automatically tied to the fastest responding server (not necessarily the closest) | ||
| + | */ | ||
| + | include("lib/xmlrpc.inc"); | ||
| + | |||
| + | $client = new xmlrpc_client("http://api.geoscaling.com/dns2/xml-rpc/"); | ||
| + | //$client->setdebug(1); | ||
| + | |||
| + | $timeout = 5; | ||
| + | echo $_GET['server'] . '-offline' . "=" . $_GET['offline'] . "\n"; | ||
| + | |||
| + | |||
| + | $payload[$_GET['server'] . '-offline'] = $_GET['offline']; | ||
| + | |||
| + | // set online any servers not specified in arguments | ||
| + | if ($_GET['server'] != 'linodes1') | ||
| + | $payload['linode-s1-offline'] = 'false'; | ||
| + | |||
| + | if ($_GET['server'] != 'yrs1') | ||
| + | $payload['rackspace-s1-offline'] = 'false'; | ||
| + | |||
| + | if ($_GET['server'] != 'yyyy-s2') | ||
| + | $payload['rackspace-s2-offline'] = 'false'; | ||
| + | |||
| + | if ($_GET['server'] != 'xxxx-s2') | ||
| + | $payload['linode-s2-offline'] = 'false'; | ||
| + | |||
| + | |||
| + | $msg = new xmlrpcmsg("geoscaling.extra_info", | ||
| + | array( | ||
| + | php_xmlrpc_encode("keith198"), | ||
| + | php_xmlrpc_encode("daddy1"), | ||
| + | php_xmlrpc_encode(serialize($payload)) | ||
| + | ) | ||
| + | ); | ||
| + | |||
| + | $response = $client->send($msg, $timeout); | ||
| + | |||
| + | if($response->faultCode()) | ||
| + | { | ||
| + | print_r($response->faultString()); | ||
| + | } | ||
| + | else | ||
| + | { | ||
| + | print_r(php_xmlrpc_decode($response->val)); | ||
| + | } | ||
| + | |||
| + | echo "\n"; | ||
| + | |||
| + | ?> | ||
| + | </code> | ||
| + | |||
| + | The following contributed code makes an XML-RPC call from Java. It uses the redstone XML-RPC library: http://xmlrpc.sourceforge.net/ | ||
| + | |||
| + | <code java> | ||
| + | // test geoscaling api via restlet | ||
| + | String url="http://api.geoscaling.com/dns2/xml-rpc/"; | ||
| + | XmlRpcClient client = null; | ||
| + | try { | ||
| + | client = new XmlRpcClient(url,false); | ||
| + | Object token = client.invoke( "geoscaling.extra_info", new Object[] { "USER", "PASS","s1-offline=true" } ); | ||
| + | int x = 1+2; | ||
| + | } catch (MalformedURLException e) { | ||
| + | e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. | ||
| + | } catch (XmlRpcFault xmlRpcFault) { | ||
| + | xmlRpcFault.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. | ||
| + | } | ||
| </code> | </code> | ||