[FX.php List] Making sure servers are responding to FX queries

[Steven Thoms]

Bob,

The simplest solution I have found is to test each required file with a -findany request.
If you get an error, the server isn't responding.

Before version 11, I think, but maybe sooner the FMDBNames() stopped working in FX. But I used to use this code to test and it was very quick and worked a charm:


// confirmDatabases
$strError = '';
$resultError = 0;
$query = fmConnect(); // does not require a dbname, for obvious reasons; see below...
$result = $query -> FMDBNames();
//print_r($result);
if ( $query->lastErrorCode != 0 ) {
    AddError("The databases are not available.<br />The Web Publishing Engine is not responding. ErrorCode:" . $query->lastErrorCode , $strError);
} else {
    $searchDbs  = explode("," , REQUIRED_DBS);
    $dataString = serialize($result['data']);
    foreach ( $searchDbs as $key=>$dbName ) {
        if ( strpos($dataString , $dbName) === false ) {
            $newError = "The " .  $dbName . " database was not available.";
            AddError($newError , $strError);
        }
    }
}
if ( $strError != '' )
    include_once "{$AppLoc}src/error.php";


With these settings at the top of the page...

// db access files
require_once "{$_SERVER['DOCUMENT_ROOT']}/FX/FX.php";
require_once "{$_SERVER['DOCUMENT_ROOT']}/FX/FM_Errors.php";
require_once "{$_SERVER['DOCUMENT_ROOT']}/FX/FX_Error.php";
require_once "{$_SERVER['DOCUMENT_ROOT']}/FX/server_data.php";

// db defaults
define ("REQUIRED_DBS", "File1, File2, etc.");
define ("GROUP_SIZE", "all");
define ("ERROR_SPACE", "<br />&nbsp;&nbsp;&nbsp;");

// fx interface functions

function fmConnect($layout = '' , $groupSize = GROUP_SIZE, $responseLayout='') {
    $query = new FX(FM_IP, FM_PORT, FM_VERSION);
    if ( $layout != '' )
        $query -> SetDBData(FMDB, $layout, $groupSize, $responseLayout);
    $query -> SetDBUserPass(FM_USERNAME, FM_PASSWORD);
    return $query;
}

I hope that helps,

Steve


On Sep 25, 2013, at 11:03 AM, Bob Patin wrote:

> A while back someone posted their code for monitoring whether a web server is responding to FX queries. 
> 
> I have a little test database on each of my FM servers and wrote a page that does a quick query every N minutes, but I don't think it's really telling me the truth.
> 
> I say that because I retired one of my FM servers, and yet my page still reports that it's functioning normally... :)
> 
> I'd love to get a copy of that code; I think it might've been Webko?
> 
> Thanks,
> 
> Bob Patin
> Longterm Solutions LLC
> bob at longtermsolutions.com
> 615-333-6858
> http://www.longtermsolutions.com
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