The following are Server Instance parameters. Refer to Server Pool and Server Instance Commands for descriptions.
name(string)
probe_port (int)
quiesce (bool)
sp (object): The server pool that this server instance belongs to, as retrieved using srvpool::getByName().
weight (int)
hot_spare (bool)
probe_l4 (bool)
maxconn (int)
persist_override (bool)
strict_maxconn (bool)
getByName(object srvpool, string name)
Description: Fetch the server instance named ‘name’ from the server pool object srvpool. The server pool object should have been previously fetched with srvpool::getByName().
Returns: On success: server instance object populated with all of its properties. On failure: An exception with a message and an error code.
Example: // Fetch a server instance named ‘sv00’ $sp = srvpool::getByName(“sp00”); $si = si::getByName($sp, "sv00"); |
getStatusDescription()
Description: Get the status of this server instance as a string.
Returns: A string containing the status of this server instance.
Example: $sp = srvpool::getByName(“sp00”); $si = si::getByName($sp, "sv00"); echo $si->getStatusDescription(); |
getStatusResp()
Description: Get the status of this server instance as a numeric value.
Returns: A numeric value indicating the status:
Example: // If there is a problem with this server instance, print the status (accessible using ‘lastrun’ command). $sp = srvpool::getByName(“sp00”); $si = si::getByName($sp, "sv00"); if ($si->getStatusResp() == 2) { echo $si->getStatusDescription(); } |
getCurrentWeight()
Description: Get the dynamic weight of this server instance as a numeric value.
Returns: A numeric value indicating the weight.
Example: // Print the current weight (accessible using ‘lastrun’ command). $sp = srvpool::getByName(“sp00”); $si = si::getByName($sp, "sv00"); if ($si->getStatusResp() == 2) { echo $si->getCurrentWeight(); } |
stats(string statName)
Description: Get the value of the statistic named ‘statName’. The available statistics are the same as those displayed in the CLI when using the srvpool <name> si <name> stats command.
Returns: On success, the last-measured value of this statistic. On failure, an exception describing what went wrong: invalid statistic name or no statistic specified.
Example: $sp = srvpool::getByName(“sp00”); $si = si::getByName($sp, "sv00"); if ($si->stats(“TOTALPRCSD”) > 100) { echo “Processed more than 100 requests through sv00”; } |
delete(optional Boolean forceFlag)
Description: Delete this server. Can only be used on a server instance object which has been retrieved using
Returns: Map containing message string with a status code. Status code will be 0 if the deletion was successful and non-zero otherwise.
Example: $sp = srvpool::getByName(“sp00”); $si = si::getByName($sp, "sv00"); // Try to delete it, if it fails, force the deletion. $value = $si->delete(); if ($value[“status”] != 0) { // Print out the reason for the failure, accessible using ‘lastrun’ command echo “Failed to delete because: “, $value[“message”]; $value = $si->delete(TRUE); } |
commit()
Description: Push the changes to this server instance into the permanent configuration. If this server object was created using
Returns: Map containing message string with a
Example: // Create a new server, then modify it $sp = srvpool::getByName(“sp00”); $si = new si; $si->sp = $sp; $si->weight = 10; $si->commit(); // If we don’t do getByName(), the commit() below would fail with ‘object already exists’ error because the system will try to add this object instead of modify it. // The server pool must be re-fetched also since it was modified when we added a server instance. $sp = srvpool::getByName(“sp00”); $si = $si = si::getByName($sp, "sv00"); $si->weight = 100; $si->commit(); |