STATISTIC_HTTP_GET_REQUEST

This specific statistic is only available when you're using an HTTP profile or FastHTTP profile with your virtual server. When this is the case, one of the following methods can be used to retrieve the statistic, depending on which profile you're using:

 

 

LocalLB::ProfileHttp::get_all_statistics

 

LocalLB::ProfileHttp::get_statistics

 

System::Statistics::get_http_statistics

 

 

LocalLB::ProfileFastHttp::get_all_statistics

 

LocalLB::ProfileFastHttp::get_statistics

 

System::Statistics::get_fasthttp_statistics

 

 

Loc

 

 

I am not savvy with c. What file and what syntax is used to add and remove stats such as this one?

Currently there is no way to remove statistics. As for querying them, I'd suggest you refer to some of the C samples in the sdk (/sdk/samples/soap/c/Microsoft) that query statistics and use those as a reference. I believe the NodeAddress, Pool, and VSStats apps in the LocalLB directory all reference the stats for the respective object types.

Yes, we have actaully built and ran the Pool.exe but there are some stats we simply do not need to query. So if there is no way to remove the stats we do not need from Pool.exe can we still ADD a stat? If so, my question of syntax and file is still open and concerning how to add STATISTIC_HTTP_GET_REQUEST. Thanks again for the help!

Thanks Joe. We were able to get the STATISTICS_HTTP_GET_REQUEST from the HTTP profile but we are not sure of our numbers. For some reason it looped through twice and gave us these numbers

 

 

STATISTIC_HTTP_GET_REQUESTS : 3440790

 

STATISTIC_HTTP_GET_REQUESTS : 61927

 

 

These seem very high. We would like to get the number seen in the GUI Graph for HTTP REQUESTS, which show 2k - 3.5k over the course of the day. Is this possible? Where would we get this number from?

 

 

Thanks,

 

 

-RR

 

Posted By Roachie_34 on 5/3/2005 3:00:14 PM

Thanks Joe. We were able to get the STATISTICS_HTTP_GET_REQUEST from the HTTP profile but we are not sure of our numbers. For some reason it looped through twice and gave us these numbers

STATISTIC_HTTP_GET_REQUESTS : 3440790

STATISTIC_HTTP_GET_REQUESTS : 61927

These seem very high. We would like to get the number seen in the GUI Graph for HTTP REQUESTS, which show 2k - 3.5k over the course of the day. Is this possible? Where would we get this number from?

Thanks,

-RR

The performance graphs in the GUI are displaying the "rates" while the numbers exposed from the statistics() methods all return "totals". It is up to the client application to perform a rate calculation

rate = (total2 - total1)/(t2-t1)

Where total1 and 2 are the 64 bit values and t1 and t2 are the relative time in seconds that the calls were made for total1 and total2. The statistics structures returned from the stats calls all contain a timestamp that you can use to calculate the time that the statistics were taken.

One last thing to note is that you should make sure you are using the full 64 bit values in your calculations. For C, you can use the following helper function

 UInt64 build64(CommonULong64 value) 
  { 
    return ((ulong)value.high<<32)|(ulong)value.low; 
  }

Before you ask, yes, we are planning on exposing the data from the performance graphs that already contain the rates. This will be available in BIG-IP v9.2.

-Joe

I'd like to add some additional information.

 

 

As I've mentioned in my earliest post, you can get the STATISTIC_HTTP_GET_REQUESTS stat only when using HTTP or FastHTTP profiles, and you can get the stat by calling:

 

 

LocalLB::ProfileHttp::get_statistics

 

LocalLB::ProfileFastHttp::get_statistics

 

 

or:

 

 

System::Statistics::get_http_statistics

 

System::Statistics::get_fashhttp_statistics

 

 

The statistics returned by the System::Statistics::get_http_statistics or System::Statistics::get_fasthttp_statistics are the rolled up or global statistics for all the HTTP or FastHTTP profiles in the system, respectively. The statistics returned by LocalLB::ProfileHttp or LocalLB::ProfileFastHttp are for the specific profiles only.

 

 

With this in mind, does the first statistic in your last post correspond to the stat returned by System::Statistics::get_http_statistics, and your second stat correspond to that returned by LocalLB::ProfileHttp::get_statistics ? If so, the first stat (3440790) represents the total HTTP GET requests from all HTTP profiles in the system, whereas the second stat (61927) represents the HTTP GET request for a specific HTTP profile used to get the stat.

 

 

Regards,

 

Loc

We are trying to use this same method to get some egress numbers, we're using this statistic

 

 

--> STATISTIC_CLIENT_SIDE_BYTES_OUT :

 

 

Here's the data that is returned sampling every minute

 

 

770483506918

 

770710557928

 

770946243355

 

18446744071789620234

 

18446744072013105958

 

18446744072243454005

 

18446744072468708102

 

18446744072705257264

 

18446744072930734391

 

18446744073161324933

 

18446744073391077276

 

18446744073616951729

 

773225461075

 

773457142371

 

773683848017

 

773904778300

 

774123504258

 

774363210149

 

774578852132

 

774802350794

 

775013717568

 

775234845129

 

18446744071782249483

 

18446744072008059388

 

18446744072239486480

 

 

Obviously I can't get valid calculations when it jumps between the two ranges, what is going on here?

 

 

Thanks,

 

jeff

This indeed looks odd. Can you log the Low and High values returned from the UInt64 structure so that we can determine if it's indeed the data that is incorrect or if it is in the calculation of the 64bit value?

 

 

Also, if you could post which method you are using and which statisitic this corresponds to that would help out. Also, the version of BIG-IP might help as well.

 

 

One thing to note is that we have recently introduced an API to pull down the CSV values associated with the performance graphs. I'll have to check which version of 9.x they were introduced in (I believe it won't be until 9.2.0). We are using a round robin database which allows for decay of data over time to allow for a fixed result set. This should be released with the next SDK in time for BIG-IP v9.2.0 (late summer).

 

 

-Joe

I am just using the vsstats.exe sample code as is that comes in the sdk and one of the statistics returned is

 

 

--> STATISTIC_CLIENT_SIDE_BYTES_OUT

 

 

Here's what's returned for that stat running vsstats every 5 minutes

 

 

1792046826596

 

1942014224669

 

18446744072041273985

 

1946015507947

 

18446744071729214894

 

18446744073640195150

 

1951766616044

 

18446744073162192014

 

1955505485325

 

18446744072512350211

 

1959158405079

 

18446744071909981514

 

1962881229517

 

1964828299687

 

18446744073619993414

 

1969217487444

 

1971416366594

 

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