On Sat, Nov 21, 2009 at 7:58 AM, Harold Lim <[email protected]
<mailto:[email protected]>> wrote:
Hi Akara,
Currently, what I have is an apache front-end using mod_proxy as a
load balancer for multiple glassfish servers. In Faban, I just enter
the address of the apache server. It works fine but I have to turn
on sticky session. Without sticky session, it's not allowing the
pages to log-in (i think because it's returning with different
glassfish server each time).
The problem I have now is that when I run my benchmark run, the load
is not balanced. It is skewed towards one of the glassfish server
(i.e, 1 glassfish server has 70+% utilization, the other 2 only has
40+%).
I was looking at the UIDriver of Olio and saw that the
httpconnection instance is being reused. It only gets "a new fresh
state" in the doLogout. But, doLogout is only being called by
doLogin() and in doAddPerson().
What is the best way to address this problem? Do I call doLogout()
at the end of each benchmark operation function (i.e, in
doTagSearch(), etc)? I feel that if I do that, it breaks the realism
of the simulation/benchmark run.
In Faban, how does it determine or what constitutes a "session". I
would think a session is something like a user going to a website,
browsing a couple of the pages within that site and then leaving.
Ideally, what we want is having something like that, with the
leaving part corresponding to calling the doLogout method.
Thanks,
-Harold
--- On Fri, 11/6/09, Akara Sucharitakul <[email protected]>
wrote:
> From: Akara Sucharitakul <[email protected]>
> Subject: Re: Question about Faban/workload driver + multiple
Glassfish servers
> To: "Harold Lim" <[email protected] <mailto:[email protected]>>
> Date: Friday, November 6, 2009, 4:13 PM
> OK, with that version it is probably
> harder to achieve what you're
> trying to do (go through switches). Check out the new
> benchmark class.
>
> -Akara
>
> Harold Lim wrote:
> > Hi Akara,
> >
> > Yes. I built my olio package from the Java source (a
> few months back).
> >
> > -Harold
> >
> > --- On Fri, 11/6/09, Akara Sucharitakul
<[email protected]>
> wrote:
> >
> >> From: Akara Sucharitakul <[email protected]>
> >> Subject: Re: Question about Faban/workload driver
> + multiple Glassfish servers
> >> To: "Harold Lim" <[email protected] <mailto:[email protected]>>
> >> Date: Friday, November 6, 2009, 3:11 PM
> >> Sorry, I meant the Olio kit. It is
> >> the Olio benchmarking process that
> >> causes this issue.
> >>
> >> -Akara
> >>
> >> Harold Lim wrote:
> >>> Hi Akara,
> >>>
> >>> I'm using the faban binary you gave me last
> September
> >> 19 with the load variation fix.
> >>>
> >>> -Harold
> >>>
> >>> --- On Fri, 11/6/09, Akara Sucharitakul
<[email protected]>
> >> wrote:
> >>>> From: Akara Sucharitakul <[email protected]>
> >>>> Subject: Re: Question about Faban/workload
> driver
> >> + multiple Glassfish servers
> >>>> To: [email protected]
<mailto:[email protected]>
> >>>> Date: Friday, November 6, 2009, 2:47 PM
> >>>> Hmmm, based on previous questions I
> >>>> thought you were on the latest and
> >>>> pretty much in-sync with the repository.
> >> Apparently not.
> >>>> OlioBenchmark.configure no longer makes a
> call to
> >> getFile.
> >>>> This has been
> >>>> eliminated in favor of the Faban
> services/tools
> >>>> infrastructure we had in
> >>>> place lately.
> >>>>
> >>>> Did you build the kit yourself? Or is this
> based
> >> on a
> >>>> released kit. Thanks.
> >>>>
> >>>> -Akara
> >>>>
> >>>> Harold Lim wrote:
> >>>>> Hi Akara,
> >>>>>
> >>>>> Here is the stack trace:
> >>>>>
> >>>>> Logger:
> >> com.sun.faban.harness.engine.GenericBenchmark
> >>>>> Thread Class
> >>
> >>>> Method
> >>>>> 11
> >>>>
> com.sun.faban.harness.engine.GenericBenchmark
> >>>> start
> >>>>> Exception:
> >>>>> Message:
> >>>>>
> >> com.sun.faban.harness.FabanHostUnknownException:
> Host
> >>>> xxx.xxx.xxx.xxx not found!
> >>>>> Stack Trace:
> >>>>> Class Method
> >>
> >>>> Line
> >>>>>
> com.sun.faban.harness.engine.CmdService
> >>>> get
> >> 1276
> >>>>>
> com.sun.faban.harness.RunContext
> >>>> getFile 346
> >> org.apache.olio.workload.harness.OlioBenchmark
> >>>> configure
> >> 107
> >>
> com.sun.faban.harness.engine.InterfaceBenchmarkWrapper
> >>>> configure
> >> 56
> >>>>>
> com.sun.faban.harness.engine.GenericBenchmark
> >>>> start
> >> 264
> >>>>>
> com.sun.faban.harness.engine.RunDaemon
> >>>> run
> >> 338
> >>>>> java.lang.Thread
> run
> >>>> 619
> >>>>> Thanks!
> >>>>> -Harold
> >>>>>
> >>>>> --- On Thu, 11/5/09, Akara
> Sucharitakul <[email protected]>
> >>>> wrote:
> >>>>>> From: Akara Sucharitakul <[email protected]>
> >>>>>> Subject: Re: Question about
> Faban/workload
> >> driver
> >>>> + multiple Glassfish servers
> >>>>>> To: [email protected]
<mailto:[email protected]>
> >>>>>> Date: Thursday, November 5, 2009,
> 4:37 PM
> >>>>>> Can you get me the stack trace?
> >>>>>> Thanks.
> >>>>>>
> >>>>>> -Akara
> >>>>>>
> >>>>>> Harold Lim wrote:
> >>>>>>> Hi Akara,
> >>>>>>>
> >>>>>>> When I set hostConfig/enabled
> to
> >> false, I am
> >>>> getting
> >>>>>> FabanUnknownHostException pointing
> to the
> >> address
> >>>> of the
> >>>>>> switch. But If I set it to true,
> it fails
> >> because
> >>>> it is not
> >>>>>> able to connect to the agent
> (which I
> >> don't have)
> >>>> in the
> >>>>>> machine that has the switch.
> >>>>>>> -Harold
> >>>>>>>
> >>>>>>> --- On Fri, 10/30/09, Akara
> >> Sucharitakul
> >>>> <[email protected]>
> >>>>>> wrote:
> >>>>>>>> From: Akara Sucharitakul
> <[email protected]>
> >>>>>>>> Subject: Re: Question
> about
> >> Faban/workload
> >>>> driver
> >>>>>> + multiple Glassfish servers
> >>>>>>>> To: [email protected]
<mailto:[email protected]>
> >>>>>>>> Date: Friday, October 30,
> 2009,
> >> 7:56 PM
> >>>>>>>> Lets say it has not been
> tested
> >> this
> >>>>>>>> way. It certainly cannot
> >> dynamically add
> >>>> servers
> >>>>>> into the
> >>>>>>>> driver. But you can use a
> switch
> >> that
> >>>> allows
> >>>>>> dynamic
> >>>>>>>> addition of the servers.
> If you
> >> want
> >>>> stats
> >>>>>> collection for
> >>>>>>>> all the servers behind
> that
> >> switch, we may
> >>>> need to
> >>>>>> add an
> >>>>>>>> explicit URL field in the
> >> configuration
> >>>> (which
> >>>>>> will default
> >>>>>>>> to the web servers if left
> blank.
> >> If
> >>>> that's not
> >>>>>> needed, just
> >>>>>>>> specify the single server
> >> representing the
> >>>> switch
> >>>>>> and set
> >>>>>>>> hostConfig/enabled to
> false to
> >> prevent
> >>>> Faban
> >>>>>> starting an
> >>>>>>>> agent there. Thanks.
> >>>>>>>>
> >>>>>>>> -Akara
> >>>>>>>>
> >>>>>>>> Harold Lim wrote:
> >>>>>>>>> Hi,
> >>>>>>>>>
> >>>>>>>>> Does the workload
> driver
> >> supports
> >>>> dynamically
> >>>>>> adding a
> >>>>>>>> glassfish server, while a
> >> benchmark test
> >>>> is
> >>>>>> running?
> >>>>>>>>> Currently, I specify
> all the
> >> glassfish
> >>>> servers
> >>>>>> in the
> >>>>>>>> host:pair field of the web
> server
> >> tab.
> >>>>>>>>> If not, is there any
> way
> >> around it? Do
> >>>> you
> >>>>>> have any
> >>>>>>>> ideas of how to deal with
> adding
> >> or
> >>>> removing
> >>>>>> glassfish
> >>>>>>>> servers dynamically?
> >>>>>>>>> -Harold
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
>
> >>>>
> >>>>>
> >>>
> >>>
> >>>
> >>
> >
> >
> >
>
>
