Help needed with JSON output

[ArnaudG]

Hello there,

I'm actually working on a way to make ITservices measurable.

Thus, after creating some test ITservices, I worked on an agent php script which purpose is to collect all the existing services with name, status (problems/sla rate) and sla threshold.

So far I stumbled over two problems :
1/ When I create a disovery rule with the key pointing on my script, I can see a beautifull red cross in the infobox of the rule telling me : "Value should be a JSON object"
Ok, very nice, but my output has the appropriate JSON format (JSONlint proof). So I'm a bit lost with this only hint.

2/ In the output itself, I'm able to fetch the service name and threshold (through service.get) and the problems (trigger ids through service.getsla) but it won't show me any actual sla rate.

Here is my script :

<?php
        //Php API path

        require './PhpZabbixApiSLA-2.4.2/build/ZabbixApi.class.php';
        use ZabbixApi\Zabbixapi;

        //Zabbix token creation

        $zab = new ZabbixApi("http://myIP/zabbix/api_jsonrpc.php","user","pwd");
        $zab->userLogin(array("user"=>"someuser","password"=>"somepwd"));

        //Data for service.get

        $zab->serviceGet();
        $result = $zab->getResponse();
        $result = json_decode($result,true);

        //Data for service.getsla

        $zab->serviceGetSla(array("params"=>array("serviceids","intervals"=>array("from"=>"1420070400","to"=>"1438785000"))));
        $result1 = $zab->getResponse();
        $result1 = json_decode($result1,true);

        $sla = $result1["result"];

        //JSON formating

        echo "{\n";
        echo "\t\"data\":[\n\n";

        $first=true;

        foreach ($result["result"] as $key=>$srvc) {

        if(!$first) echo "\t,\n";
        $first = false;


        echo "\t{\n";
        echo "\t\t\"{#SRVCNAME}\":\"".$srvc["name"]."\",\n";
        echo "\t\t\"{#GOODSLA}\": ".$srvc["goodsla"].",\n";
        echo "\t\t\"{#STATUS}\": [".json_encode($sla[$srvc["serviceid"]]["problems"]).",".json_encode($sla[$srvc["serviceid"]]["sla"])."]\n";
        echo " \t}\n";
        };


        echo "\n\t]\n";
        echo "}\n";


?>

So, what have I missed? If someone has any ideas about these issues I'd be glad to hear about it.

And thanks in advance for any usefull reply.

[ArnaudG]

After some tests and making sure I'm not doing anything wrong, I came to the conclusion there is something wrong with the zabbix api service.getsla method.
While the status and service id show up, everything depending on the "intervals" parameter does not.

Either in php or perl (I tried both languages), the result ouptut leaves me with empty brackets where it should be a float value corresponding to the actual sla lvl.

Still, maybe I'm missing something, nonetheless I let the issue being checked by a teammate who came accross the same conclusions.

[sersor]

Please make sure to pass 'serviceids' as this is required by the method

[ArnaudG]

Hi,

I'm not sure what exactly you mean by passing the "itservices", but if it is about the matching between the different outputs, I made sure all the results match.

I made a var_dump of the data

 echo "\nserviceid=".$srvc["serviceid"].": ";
        echo "name=".$srvc["name"]." - ";
        echo "goodsla=".$srvc["goodsla"]." - ";
        var_dump($sla[$srvc["serviceid"]]); 

witch outputed something like this :

serviceid=1: name=GW_LAB_PSTN - goodsla=95.0000 - sla=array(3) {
  ["status"]=>
  string(1) "0"
  ["problems"]=>
  array(0) {
  }
  ["sla"]=>
  array(0) {
  }
} 

I also verified by comparing with the database entries.

[ArnaudG]

Hi,

Here are some more details to what I've done (zabbix 2.4.5):

The full code to check the methods, including the serviceids and intervals output :

 <?php
        require './PhpZabbixApiSLA-2.4.2/build/ZabbixApi.class.php';
        use ZabbixApi\ZabbixApi;

        $zab = new ZabbixApi("http://192.168.10.9/zabbix/api_jsonrpc.php","Admin","zabbix");
        //$zab->userLogin(array("user"=>"Admin","password"=>"zabbix"));

        //Data for service.get
        $zab->serviceGet();
        $def_sla = $zab->getResponse();
        $def_sla = json_decode($def_sla,true);

        //Data for service.getsla
        $zab->serviceGetSla(array("params"=>array("serviceids"=>array("1"),"intervals"=>array("from"=>"1420070400","to"=>"1438785000"))));
        //the above line has the same efect than : $zab->serviceGetSla();  !!!?
        $res_sla = $zab->getResponse();
        $res_sla = json_decode($res_sla,true);

        //Display SLA definition of the first SLA monitored called "GW_LAB_PSTN"
        var_dump($def_sla["result"][0]);
        //Display SLA status
        //var_dump($res_sla["result"]);  !! unexpected status of all SLA is returned. Need to be filtered !!
        var_dump($res_sla["result"][$def_sla["result"][0]["serviceid"]]);
?>

The output:

# php itservice_get.php

 array(8) {
  ["serviceid"]=>
  string(1) "1"
  ["name"]=>
  string(11) "GW_LAB_PSTN"
  ["status"]=>
  string(1) "0"
  ["algorithm"]=>
  string(1) "1"
  ["triggerid"]=>
  string(1) "0"
  ["showsla"]=>
  string(1) "1"
  ["goodsla"]=>
  string(7) "95.0000"
  ["sortorder"]=>
  string(1) "0"
}
array(3) {
  ["status"]=>
  string(1) "0"
  ["problems"]=>
  array(0) {
  }
  ["sla"]=>
  array(0) {
  }
} 

I also attached a screenshot of the SLA "GW_LAB_PSTN" state which values I was trying to get with that code.

[sersor]

Sorry, I don't see attachment with screenshot

[ArnaudG]

Sorry, it did not upload well the first time and I did not check either...

[ArnaudG]

We made it, eventually.

Though the error wasn’t where we expected it.
I just removed the “params” argument which is implicit to the method. So each time I ran the script, the method was looking for a “params” argument in “params”. It just couldn’t work.

Now the line of code looks like this and the full script runs like a charm :

$zab->serviceGetSla("intervals"=>array(array("from"=>"1420070400","to"=>"1438785000"))); 

Thanks again for the support.