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From Shmuel Krakower <shmul...@gmail.com>
Subject Re: 答复: 答复: JMeter sends https request delayed due to netbios lookup
Date Wed, 27 Aug 2014 05:25:43 GMT
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.

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> 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]
> *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.
>
> 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>
> 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]
> *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_Request
>
>
> Shmuel Krakower.
>
> 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>
> 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
>
>
>
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