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From Philippe Mouawad <philippe.moua...@gmail.com>
Subject Re: JMeter sends https request delayed due to netbios lookup
Date Thu, 28 Aug 2014 19:16:38 GMT
Hello,
Read this thread related to the bugzilla:
http://mail-archives.apache.org/mod_mbox/hc-httpclient-users/201408.mbox/%3C1409125976.11799.4.camel%40ubuntu%3E

The issue in JDK is not fixed, it is marked as not an issue.
As explained in the discussion

java.net.Inet4AddressImpl.getHostByAddr attempts a reverse lookup.

Now as Bohdan explains, the defaulting to Netbios might be explained
by this, but I am not sure.

But I am very interested by your feedback once you do what Bohdan advises.

Regards
Philippe



On Thu, Aug 28, 2014 at 9:11 PM, BOLB (Bohdan L Bodnar) <BOLB@panduit.com>
wrote:

> I ran across a similar problem a bit over a year ago.  The solution was to
> configure the DNS server for correct reverse-DNS queries.  NETBIOS is used
> only when Windows can't get information from the DNS server.
>
> -----Original Message-----
> From: 张为东(为东) [mailto:weidong.zwd@alibaba-inc.com]
> Sent: Wednesday, August 27, 2014 9:24 PM
> To: 'JMeter Users List'; philippe.mouawad@gmail.com
> Subject: 答复: JMeter sends https request delayed due to netbios lookup
>
> Hi Philippe,
>
>
>
> C:\Users\weidong.zwd>java -version
>
> java version "1.7.0_25"
>
> Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
>
> Java HotSpot(TM) Client VM (build 23.25-b01, mixed mode, sharing)
>
>
>
> Platform:
>
> Win7 professional SP1 64bit
>
>
>
> For http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6450279 you
> mentioned in bug#54449, seems it’s resolved in 2006……
>
>
>
> Thanks,
>
> --Weidong
>
> -----邮件原件-----
> 发件人: Philippe Mouawad [mailto:philippe.mouawad@gmail.com]
> 发送时间: 2014年8月28日 5:31
> 收件人: JMeter Users List
> 主题: Re: JMeter sends https request delayed due to netbios lookup
>
>
>
> Hello,
>
> You maybe facing this issue:
>
>
>
> -  <https://issues.apache.org/bugzilla/show_bug.cgi?id=54449>
> https://issues.apache.org/bugzilla/show_bug.cgi?id=54449
>
>
>
> There is currently a discussion on dev list related to how httpclient
> 4.2.3 uses INetaddress.getHostByName (which makes reverse lookup that could
> explain this issue) and could use a new method from jdk7.
>
>
>
> Can you attach all details you jave on this issue if you are in the same
> conditions.
>
>
>
> Regards
>
> Philippe M.
>
> @philmdot
>
> On Wednesday, August 27, 2014, Shmuel Krakower < <mailto:
> shmulikk@gmail.com> shmulikk@gmail.com> wrote:
>
>
>
> > I didn't notice I sent email directly to you.
>
> > Better continue communication at the users list.
>
> >
>
> > Not sure why HC4 behaves like that.
>
> > Maybe someone else can explain.
>
> >
>
> >  <http://www.beatsoo.org> www.beatsoo.org - free application
> > performance
> monitoring from world
>
> > wide locations.
>
> > On Aug 27, 2014 5:39 AM, "张为东(为东)" <weidong.zwd@alibaba-inc.com
>
> > <javascript:_e(%7B%7D,'cvml','weidong.zwd@alibaba-inc.com');>> wrote:
>
> >
>
> >> Shmuel,
>
> >>
>
> >>
>
> >>
>
> >> Is it the same with different Implementations of the HTTP Sampler
>
> >> (JAVA/HC3.1/HC4)?
>
> >>
>
> >> [Weidong]Based on your advice below, I changed implementation of the
>
> >> HTTP Sampler, found that there is no netbios lookup when I use
>
> >> JAVA/HC3.1(I used
>
> >> HC4 in the below case).
>
> >>
>
> >> So what’s the difference among JAVA/HC3.1/HC4/blank value? Seems
>
> >> HC3.1 is obsoleted than HC4.
>
> >>
>
> >>    - HTTPClient3.1 - uses Apache Commons HttpClient 3.1. This is no
>
> >>    longer being developed, and support for this may be dropped in a
> future
>
> >>    JMeter release.
>
> >>    - HTTPClient4 - uses Apache HttpComponents HttpClient 4.x
>
> >>
>
> >>
>
> >>
>
> >> Does it work differently if you put IP/DNS as the host in the HTTP
>
> >> sampler instead of hostname?
>
> >>
>
> >> [Weidong]I had already put IP address instead of hostname in the http
>
> >> sampler.
>
> >>
>
> >>
>
> >>
>
> >>
>
> >>
>
> >> *发件人:* Shmuel Krakower [mailto:shmulikk@gmail.com
>
> >> <javascript:_e(%7B%7D,'cvml','shmulikk@gmail.com');>]
>
> >> *发送时间:* 2014年8月26日 22:08
>
> >> *收件人:* 张为东(为东)
>
> >> *主题:* Re: 答复: JMeter sends https request delayed due to netbios
>
> >> lookup
>
> >>
>
> >>
>
> >>
>
> >> Is it the same with different Implementations of the HTTP Sampler
>
> >> (JAVA/HC3.1/HC4)?
>
> >>
>
> >> Does it work differently if you put IP/DNS as the host in the HTTP
>
> >> sampler instead of hostname?
>
> >>
>
> >>
>
> >> Shmuel Krakower.
>
> >>
>
> >>  <http://www.Beatsoo.org> www.Beatsoo.org - re-use your jmeter
> >> scripts
> for application
>
> >> performance monitoring from worldwide locations for free.
>
> >>
>
> >>
>
> >>
>
> >> On Tue, Aug 26, 2014 at 4:28 PM, 张为东(为东)
> <weidong.zwd@alibaba-inc.com
>
> >> <javascript:_e(%7B%7D,'cvml','weidong.zwd@alibaba-inc.com');>> wrote:
>
> >>
>
> >> Shmuel, I’d like to figure out the reason why JMeter sends netbios
>
> >> lookup
>
> >> 3 times in this case.
>
> >>
>
> >>
>
> >>
>
> >> On the other hand, I think it’s not related to the connection
>
> >> timeout, the server side works well, the client side cost more
>
> >> seconds to send next packet.
>
> >>
>
> >>
>
> >>
>
> >> *发件人:* Shmuel Krakower [mailto:shmulikk@gmail.com
>
> >> <javascript:_e(%7B%7D,'cvml','shmulikk@gmail.com');>]
>
> >> *发送时间:* 2014年8月26日 21:09
>
> >> *收件人:* JMeter Users List; 张为东(为东)
>
> >> *主题:* Re: JMeter sends https request delayed due to netbios lookup
>
> >>
>
> >>
>
> >>
>
> >> As you can see - it failed to connect the destination host.
>
> >>
>
> >> You should be able to control the connect part to timeout if it
>
> >> doesn't get a valid connection in a shorter time via the Connect
> Timeout:
>
> >>
>
> >>
> >> <http://jmeter.apache.org/usermanual/component_reference.html#HTTP_Re
> >> q>
> http://jmeter.apache.org/usermanual/component_reference.html#HTTP_Req
>
> >> uest
>
> >>
>
> >>
>
> >> Shmuel Krakower.
>
> >>
>
> >>  <http://www.Beatsoo.org> www.Beatsoo.org - re-use your jmeter
> >> scripts
> for application
>
> >> performance monitoring from worldwide locations for free.
>
> >>
>
> >>
>
> >>
>
> >> On Tue, Aug 26, 2014 at 3:17 PM, 张为东(为东)
> <weidong.zwd@alibaba-inc.com
>
> >> <javascript:_e(%7B%7D,'cvml','weidong.zwd@alibaba-inc.com');>> wrote:
>
> >>
>
> >> Hi Experts,
>
> >>
>
> >>
>
> >>
>
> >> I encountered one issue that when JMeter sends a https request to
>
> >> server, it cost mostly 4 seconds during the session, it’s too long…….
>
> >> I had captured the packet data by wireshark, you can have a look
>
> >> below or attachment.
>
> >>
>
> >>
>
> >>
>
> >> Source IP(https client-JMeter):10.68.33.195
>
> >>
>
> >> Destination IP(https server):10.125.199.69
>
> >>
>
> >>
>
> >>
>
> >> For packet #1037, #1252 and #1404, JMeter tried 3 times to do netbios
>
> >> lookup, it cost 3 seconds, it’s unexpected for me;
>
> >>
>
> >> But the server side handle the https request quickly, it cost around
>
> >> 0.1s, it’s expected for me.
>
> >>
>
> >>
>
> >>
>
> >> Thanks,
>
> >>
>
> >> Weidong
>
> >>
>
> >>
>
> >>
>
> >> ---------------------------------------------------------------------
>
> >> To unsubscribe, e-mail:  <mailto:user-unsubscribe@jmeter.apache.org>
> user-unsubscribe@jmeter.apache.org
>
> >> <javascript:_e(%7B%7D,'cvml','user-unsubscribe@jmeter.apache.org');>
>
> >> For additional commands, e-mail:
> >> <mailto:user-help@jmeter.apache.org>
> user-help@jmeter.apache.org
>
> >> <javascript:_e(%7B%7D,'cvml','user-help@jmeter.apache.org');>
>
> >>
>
> >>
>
> >>
>
> >>
>
> >>
>
> >
>
>
>
> --
>
> Cordialement.
>
> Philippe Mouawad.
>
>


-- 
Cordialement.
Philippe Mouawad.

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