Discussion Feed

Hi Jason,   I've started up a 21.10 machine agent with server visibility disabled and it is passing stats across to a controller, albeit a fully licensed one.   Can you confirm there are no error messages appearing in the logs after the lines you've shared above?   Mark ... View more

Hi Jason,   Is Server Visibility part of the trial license? If so, can you try enabling it via the config: <sim-enabled>true</sim-enabled> This should be needed, but worthwhile giving a go.   Mark ... View more

Hi Bill,   The way I am doing something similar is through a custom curl script pulling the same information that the Controller UI Events page queries and shows. I'm doing it for each Application, it sounds like you're after the info on a Node basis.   Mark ... View more

Hi @Ujjwal.chhabra    In order to determine what values of standard deviations I would recommend looking at the metric in the Metric Browser as shown in the attached picture.   Turn on the Shade option (bottom right) and Configure the range (top left). This shows the calculated standard deviations above the baseline for the time period - note that this can change every hour. Review the data across a wider timeframe - we often different performance early in the morning as systems are warming up.   With the example attached I would pick 2 standard deviations as a warning, 3 standard deviations as critical. I would also define the health rule so that it looks for multiple occurrences in a time period e.g. 5 in 30 minutes, so as to avoid a single peak generating an alert.   The majority of our Health Rules are defined with 2sd for warning, 3sd for critical, however we do have a set that are set at 3sd and 4sd respectively as they were triggering too frequently   Regards   Mark ... View more

Hi Sahil,   I wondered if that was the case.   The only other thing I can think of, which might not be appropriate in your case, is to use the Error Detection configuration to ignore all HTTP errors apart from the 500.   This of course would mean you would lose visibility of the other errors codes, so probably isn't a good option.   Mark ... View more

Hi Sahil,   If you have Analytics, then you could define an Analytics metric with a query similar to this:   SELECT count(*) FROM transactions WHERE transactionName = "BT1" and userExperience = "ERROR" and segments.errorList.errorCode = "500"   And then define your Health Rule based on this metric.   Mark ... View more

Hi Vinay,   The first thing I would check is connectivity from your host to the AppD SaaS controller - is there a proxy server between them for example? The second thing would be to look for any alerts in the controller indicating a license error   Mark ... View more

Hiya,   Standard deviations will work better if you have periods where the range of values is wider than other period - an example might be more varying response times during busy times, as opposed to quieter times. Comparing against a Standard Deviation will reduce false alarms in those scenarios compared with a comparison against baseline percentages.   If the range of values is constant over time, always distributed over the same range, then a Baseline Percentage would work just as well.   To demonstrate this, I would recommend finding an example in your Metric Browser of a series where the baseline changes by a small amount from hour to hour, but the range varies widely - this should also have larger shaded Standard Deviation values. I've attached an example - we don't want the spike at 7:50am to generate an alarm as we know performance can be a little erratic first thing in the morning. It is well over the baseline though.   Mark     ... View more