DX Application Performance Management

I have followed the documentation and looked at existing JavaScript calculators to create a new one. I am getting an error though when I put the script in the scripts directory.
Here is the error

10/21/13 03:37:55.254 PM CDT [ERROR] [Harvest Engine Pooled Worker] [Manager.JavascriptEngine] Exception with script /Introscope_9150/./scripts/ProdStuckThreads-2.js: org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,java.lang.Integer,number,number). (/Introscope_9150/./scripts/ProdStuckThreads-2.js#45)
org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,java.lang.Integer,number,number). (/Introscope_9150/./scripts/ProdStuckThreads-2.js#45)
        at org.mozilla.javascript.DefaultErrorReporter.runtimeError(DefaultErrorReporter.java:95)
        at org.mozilla.javascript.Context.reportRuntimeError(Context.java:966)
        at org.mozilla.javascript.Context.reportRuntimeError(Context.java:1022)
        at org.mozilla.javascript.Context.reportRuntimeError1(Context.java:985)
        at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:158)
        at org.mozilla.javascript.optimizer.OptRuntime.callN(OptRuntime.java:84)
        at org.mozilla.javascript.gen.c42._c1(/Introscope_9150/./scripts/ProdStuckThreads-2.js:45)
        at org.mozilla.javascript.gen.c42.call(/Introscope_9150/./scripts/ProdStuckThreads-2.js)
        at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:337)
        at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2755)
        at org.mozilla.javascript.gen.c42.call(/Introscope_9150/./scripts/ProdStuckThreads-2.js)
        at com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript.evaluate(CalculatorScript.java:304)
        at com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript.safeEvaluate(CalculatorScript.java:269)
        at com.wily.introscope.server.beans.javascriptcalculator.JavascriptCalculatorBean$CalculatorWrapper.handleData(JavascriptCalculatorBean.java:502)
        at com.wily.introscope.server.beans.metriccalculator.MetricCalculatorBean$RegisteredCalculator.handleData(MetricCalculatorBean.java:1118)
        at com.wily.introscope.spec.server.beans.metricdata.AMetricDataNotification.handleData(AMetricDataNotification.java:33)
        at com.wily.introscope.server.beans.metricdata.live.AsyncQueryTracker.stopHarvest(AsyncQueryTracker.java:360)
        at com.wily.introscope.server.beans.metriccalculator.MetricCalculatorBean$RegisteredCalculator.run(MetricCalculatorBean.java:817)
        at com.wily.EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:728)
        at java.lang.Thread.run(Thread.java:662)

Here is my script--

// Sample Javascript code for Wily Introscope
//
// Check for the number of Prod3 servers that have stuck threads
// Look for how many servers have >0 stuckThreads
//
function execute(metricData,javascriptResultSetHelper)
{

    var i=0;                    // binding iterator
    var agentList = {};         // list of agents
    var agentFrequency = {};    // array of frequency by agent
    var svrCount=0;
    var svrSTCount=0;

    for(i=0; i < metricData.length; i++)
    {
        var metric = metricData.agentMetric.attributeURL;

var agent = metricData[i].agentName.processURL;

var value = metricData[i].timeslicedValue.value;


//svrCount will be used to see if all the servers are reporting in.

svrCount++;


// There is no reason why this shouldn't be StuckThreadCount.

// Checking anyway.

if (metric == "(.*)WorkManagerRuntime:StuckThreadCount")

{

//if the value is more than 0 then increment the svrSTCount.

if( value>0) {

svrSTCount++;

}

}

}


// Just to a spot check if six servers were found.

if (svrCount != 6){

log.info("The Prod Stuck Thread JS calcualtor found a different number of servers than were expected. 6 were expected, "+svrCount+" were found.");

}


//

//Send the results

//

var metricName="SuperDomain|Custom Metric Host (Virtual)|Custom Metric Process (Virtual)|Custom Metric Agent (Virtual)|Prod Prod|Prod3 StuckThreads:Servers With StuckThreads";

var frequency = 15;

javascriptResultSetHelper.addMetric(metricName,java.lang.Integer(svrSTCount),javascriptResultSetHelper.kIntegerPercentage,frequency);

//javascriptResultSetHelper.addMetric(metricName, svrSTCount, svrSTCount,svrSTCount,Packages.com.wily.introscope.spec.metric.MetricTypes.kIntegerFluctuatingCounter, frequency);


var metricName="SuperDomain|Custom Metric Host (Virtual)|Custom Metric Process (Virtual)|Custom Metric Agent (Virtual)|Prod|Prod3 StuckThreads:Total Servers";

javascriptResultSetHelper.addMetric(metricName,java.lang.Integer(svrCount),javascriptResultSetHelper.kIntegerPercentage,frequency);

//javascriptResultSetHelper.addMetric(metricName, 1, svrCount, svrCount, svrCount, Packages.com.wily.introscope.spec.metric.MetricTypes.kIntegerFluctuatingCounter, frequency);


// return the result set

return javascriptResultSetHelper;


}


// Tell the EM what agents we should match against

function getAgentRegex()

{

return "(.*)server2[1-3]\\|WebLogic\\|prod\\.node(.*)";

}


// Tell the EM what agent metrics we should match against

function getMetricRegex()

{

return "JMX\\|com\\.bea\\|ApplicationRuntime=prod(.*)Name=default\\|ServerRuntime=(.*)\\|(.*)WorkManagerRuntime:StuckThreadCount";

}


// must return a multiple of default system frequency (currently 15 seconds)

function getFrequency()

{

return 15;

}


// Return false if the script should not run on the MOM.

// Scripts that create metrics on agents other than the Custom Metric Agent

// should not run on the MOM because the agents exist only in the Collectors.

// Default is true.

function runOnMOM()

{

return true;

}



I have also tried using the addMetric with addMetric(metricName, count, value, min, max, metricType, frequency), and different types in metric but always got the same type of error.


IntroscopeEnterpriseManager.log:org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,number,number,number). 
IntroscopeEnterpriseManager.log:org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,number,number,number,number,number). 
IntroscopeEnterpriseManager.log:org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,java.lang.Integer,number,number). 
IntroscopeEnterpriseManager.log:org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,java.lang.Integer,java.lang.Integer,java.lang.Integer).
IntroscopeEnterpriseManager.log:org.mozilla.javascript.EvaluatorException: Can't find method com.wily.introscope.server.beans.javascriptcalculator.CalculatorScript$JavascriptResultSetHelper.addMetric(string,java.lang.Integer,java.lang.Integer,java.lang.Integer,java.lang.Integer,java.lang.Integer,java.lang.Integer).
What paramaters are in a valid addMetric method?

Just to level-set everyone, what version of APM are you using?

hdavis wrote:

Just to level-set everyone, what version of APM are you using?

9.1.5.0

Try take away the[b] ( ) in the regular expression.

// Tell the EM what agents we should match against
function getAgentRegex()
{
return ".*server2[1-3]\\|WebLogic\\|prod\\.node.*";
}

// Tell the EM what agent metrics we should match against
function getMetricRegex()
{
return "JMX\\|com\\.bea\\|ApplicationRuntime=prod.*Name=default\\|ServerRuntime=.*\\|.*WorkManagerRuntime:StuckThreadCount";
}

VLu wrote:

Try take away the[b] ( ) in the regular expression.

// Tell the EM what agents we should match against
function getAgentRegex()
{
return ".*server2[1-3]\\|WebLogic\\|prod\\.node.*";
}

// Tell the EM what agent metrics we should match against
function getMetricRegex()
{
return "JMX\\|com\\.bea\\|ApplicationRuntime=prod.*Name=default\\|ServerRuntime=.*\\|.*WorkManagerRuntime:StuckThreadCount";
}

That doesn't matter. Still get the error. Those two functions work fine, it is calling the addMetric function that fails.
By the way, I have a 9.5.0 environment that I tried it on and it failed there as well.

Hi,

It seems to me that there some problem with the method definition.
I am not sure, but can you try the below options -

1. Remove "java.lang.Integer(svrSTCount)" parameter from the addmetric method. Explicit type casting may be creating some problem.

Current:
javascriptResultSetHelper.addMetric(metricName,java.lang.Integer(svrSTCount),javascriptResultSetHelper.kIntegerPercentage,frequency);
//javascriptResultSetHelper.addMetric(metricName, svrSTCount, svrSTCount,svrSTCount,Packages.com.wily.introscope.spec.metric.MetricTypes.kIntegerFluctuatingCounter, frequency);

Required:
javascriptResultSetHelper.addMetric(metricName, javascriptResultSetHelper.kIntegerPercentage, frequency);

2. Provide spaces between the parameters ( I am not hopeful with this, but just try it out )

Current:
javascriptResultSetHelper.addMetric(metricName,java.lang.Integer(svrSTCount),javascriptResultSetHelper.kIntegerPercentage,frequency);

Required:
javascriptResultSetHelper.addMetric(metricName, java.lang.Integer(svrSTCount), javascriptResultSetHelper.kIntegerPercentage, frequency);



Regards,
Vaibhav

viruvaibhav_apm wrote:

Hi,
...
1. Remove "java.lang.Integer(svrSTCount)" parameter from the addmetric method. Explicit type casting may be creating some problem.
...
Required:
javascriptResultSetHelper.addMetric(metricName, javascriptResultSetHelper.kIntegerPercentage, frequency);
...
2. Provide spaces between the parameters ( I am not hopeful with this, but just try it out )
...
Required:
javascriptResultSetHelper.addMetric(metricName, java.lang.Integer(svrSTCount), javascriptResultSetHelper.kIntegerPercentage, frequency);
...

For #1, if the count is removed then there would not be a point to write the metric. It would just have a metric name but not a value.
For #2, I took that long shot as well and it didn't help.

Hi

I've seen this error before, if you examine line 45 of the script you have:-

javascriptResultSetHelper.addMetric(metricName,java.lang.Integer(svrSTCount),javascriptResultSetHelper.kIntegerPercentage,frequency);

the problem is caused by defining frequency as a number before hand:-

var frequency = 15;

To overcome problem you need to define frequency as:-

var frequency = Packages.com.wily.introscope.spec.metric.Frequency.getFrequencyInSeconds(15);

Knowledge document TEC598179 covers this problem in more detail.

Hope this helps
Christopher Clark
CA Support

Thanks Chris! That fixed the problem.