[ndnSIM] Get node ID in forwarder class
Hussein AlOmaisi
alomaisi2004 at yahoo.com
Tue Sep 21 03:50:19 PDT 2021
Hi HADIBI,
You may need to include node-list header file#include "ns3/node-list.h"
Regards,Hussein
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Today's Topics:
1. Error: Asser failed.cond="next.key.m_ts >= m_currentTs
(sangita......)
2. Re: [EXT] Error: Asser failed.cond="next.key.m_ts >=
m_currentTs (Junxiao Shi)
3. Re: Get node ID in forwarder class (Hussein AlOmaisi)
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Message: 1
Date: Tue, 21 Sep 2021 11:01:22 +0100
From: "sangita......" <sangita.engg at gmail.com>
To: ndnsim at lists.cs.ucla.edu
Subject: [ndnSIM] Error: Asser failed.cond="next.key.m_ts >=
m_currentTs
Message-ID:
<CALbsVCH7ZZppCJBuLrv+dEqPCX7r2c--7aA-o-=oNDU42oXyHQ at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Dear members,
I am developing a vehicular network by incorporating a large sumo trace
file in ndnsim using the traci client.
My simulation is halted with the message:
assert failed. cond="next.key.m_ts >= m_currentTs",
file=../src/core/model/default-simulator-impl.cc, line=143
By analyzing the code of simulator-impl.cc, I understand that *m_events* is
an *event priority queue of scheduler* where all the events are inserted as
per the time of execution. When the recently popped even's time is lesser
than the last popped event then the above mentioned assert happened.
If *m_events *it is a priority queue it should place each of the event as
per its time (checking should be done at the time of insertion).
Therefore, no question should arise of failure of this condition:
next.key.m_ts >= m_currentTs"
Can anyone help to understand in which situation this can take place?
Thanks in advance.
------------------------------------
Sangita Dhara
Post Doctoral Fellow
CONNECT / SCSS
Trinity College Dublin
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Message: 2
Date: Tue, 21 Sep 2021 06:35:42 -0400
From: Junxiao Shi <shijunxiao at email.arizona.edu>
To: "sangita......" <sangita.engg at gmail.com>
Cc: ndnsim at lists.cs.ucla.edu
Subject: Re: [ndnSIM] [EXT] Error: Asser failed.cond="next.key.m_ts >=
m_currentTs
Message-ID:
<CAOFH+OZD_kdi8pBLx-GU2GM2w69mH7bzS7+-wv-1fp7ejZSaYQ at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi Sangita
My guess is that the scenario somehow scheduled an event in the past.
Yours, Junxiao
On Tue, Sep 21, 2021 at 06:02 sangita...... via ndnSIM <
ndnsim at lists.cs.ucla.edu> wrote:
> *External Email*
> Dear members,
> I am developing a vehicular network by incorporating a large sumo trace
> file in ndnsim using the traci client.
>
> My simulation is halted with the message:
> assert failed. cond="next.key.m_ts >= m_currentTs",
> file=../src/core/model/default-simulator-impl.cc, line=143
>
> By analyzing the code of simulator-impl.cc, I understand that *m_events* is
> an *event priority queue of scheduler* where all the events are inserted
> as per the time of execution. When the recently popped even's time is
> lesser than the last popped event then the above mentioned assert happened.
>
> If *m_events *it is a priority queue it should place each of the event as
> per its time (checking should be done at the time of insertion).
> Therefore, no question should arise of failure of this condition:
> next.key.m_ts >= m_currentTs"
>
> Can anyone help to understand in which situation this can take place?
> Thanks in advance.
>
> ------------------------------------
> Sangita Dhara
> Post Doctoral Fellow
> CONNECT / SCSS
> Trinity College Dublin
> -------------------------------------
> _______________________________________________
> ndnSIM mailing list
> ndnSIM at lists.cs.ucla.edu
> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>
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Message: 3
Date: Tue, 21 Sep 2021 10:44:04 +0000 (UTC)
From: Hussein AlOmaisi <alomaisi2004 at yahoo.com>
To: <ndnsim at lists.cs.ucla.edu>
Subject: Re: [ndnSIM] Get node ID in forwarder class
Message-ID: <123015707.1358868.1632221044189 at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"
Hi HADIBI,
To get the node ID use the following code:
uint32-t currentNodeId = ns3::Simulator::GetContext();
If you want to get a pointer to the current node:
auto currentNodeObj = ns3::NodeList::GetNode(currentNodeId);
I hope it helps.
Regards,Hussein
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??? http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
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??? ndnsim-request at lists.cs.ucla.edu
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When replying, please edit your Subject line so it is more specific
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Today's Topics:
? 1. Get node ID in forwarder class (HADIBI ABDENNOUR)
? 2. Node ID in forwarder class ndnsim2.8 (HADIBI ABDENNOUR)
? 3. Re: Simulation halts with small lifetime of interest
? ? ? (sangita......)
----------------------------------------------------------------------
Message: 1
Date: Tue, 21 Sep 2021 09:47:50 +0100
From: HADIBI ABDENNOUR <emp.ifd.009.hadibi.abdennour at gmail.com>
To: ndnsim at lists.cs.ucla.edu
Subject: [ndnSIM] Get node ID in forwarder class
Message-ID:
??? <CABAa30d5XkHmiq+04pvwc2Xe4hi38tW87UtHizKrwRvunLVihg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi,
i'm trying to get node ID in forwarder class using the following code :
auto node = ns3::NodeList::GetNode(ns3::Simulator::GetContext());
std::cout<<" Node ID : "<<node->GetId()<<std::endl;
It didnt work for me : error : 'ns3::NodeList' has not been declared
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Message: 2
Date: Tue, 21 Sep 2021 09:49:41 +0100
From: HADIBI ABDENNOUR <emp.ifd.009.hadibi.abdennour at gmail.com>
To: ndnsim at lists.cs.ucla.edu
Subject: [ndnSIM] Node ID in forwarder class ndnsim2.8
Message-ID:
??? <CABAa30d+6bKmwueE943+wtN7wLMJ9_yDpaNEoyZy1=V_NX-ygw at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi,
I'm trying to get node ID in forwarder class using the following code :
auto node = ns3::NodeList::GetNode(ns3::Simulator::GetContext());
std::cout<<" Node ID : "<<node->GetId()<<std::endl;
It didnt work for me : error : 'ns3::NodeList' has not been declared
Im using ndnSim2.8
Best regards
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Message: 3
Date: Tue, 21 Sep 2021 10:59:26 +0100
From: "sangita......" <sangita.engg at gmail.com>
To: Karan Raj Baruah <karan_baruah at yahoo.co.in>
Cc: "ndnsim at lists.cs.ucla.edu" <ndnsim at lists.cs.ucla.edu>
Subject: Re: [ndnSIM] Simulation halts with small lifetime of interest
Message-ID:
??? <CALbsVCHrBZB39ofU6DH5MzY9rNpAqQ82YOs-0TgpdO=wxbYyag at mail.gmail.com>
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Hi Karan,
Thanks for your all suggestions.? Somehow I fixed the issue by stopping the
interest generation a little before the vehicle leaves the network.
This is a dynamic network and vehicles are entering and leaving the network
randomly (not a fixed topology).
Thanks and regards,
Sangita.
------------------------------------
Sangita Dhara
Post Doctoral Fellow
CONNECT / SCSS
Trinity College Dublin
-------------------------------------
On Sat, Sep 18, 2021 at 8:16 PM Karan Raj Baruah <karan_baruah at yahoo.co.in>
wrote:
>
> Hello,
>
> onDataUnsolicited() is occured as there is no PIT entry in the node/face
> for the data and hence data is discarded. It seems this happens with
> most/all of the packets and as a result the simulation halts(as all data is
> quickly discarded). I think your only option for now is to increase the
> lifetime of the interest packets as the latency between the nodes is just
> too high (as per my understanding). Not sure of any other way to "fix" it
> for now.
>
> Best,
> Karan
> On Thursday, 16 September, 2021, 07:20:47 pm IST, sangita...... <
> sangita.engg at gmail.com> wrote:
>
>
> Hi Karan,
>
> I don't have anything such as MaxSeq as my consumer generating data as per
> Zipf Mandelbrot distribution. Here I have mentioned the Number of Content
> and the interest is generated following Mandelbrot distribution.
> By analysising the trace file I have seen that the simulation is stopped
> after repetadely executing the function onDataUnsolicited( ) from forwarder
> class.? This is because? timeout happens as for the very small lifetime of
> interest and on timeout I did not generating the interest again. Therefore,
> even when the data is coming back it becomes unsolicited in the nodes and
> decision was to drop the data.
>
> But again I m not getting the reason of stimulation halt. Do you have any
> idea on how an unsolicited data can make the simulation halt.
>
> Thanks and regards,
> Sangita
>
>
> On Wed, Sep 15, 2021, 22:45 Karan Raj Baruah <karan_baruah at yahoo.co.in>
> wrote:
>
> Hello Sangita,
>
> Did you set "MaxSeq" variable in your simulation scenario? It could be
> that the MaxSeq value is hit when transmitting (and there are NACKs in the
> network even after re-transmission) and simulation closes. Also, if you are
> using something like WifiRemoteStation there are two variables MaxSsrc or
> MaxSlrc(depends on the packet size you used) that sets max number of
> re-transmissions for data packets which may be causing simulation to
> shutdown as none of the packets are not reaching even after repeated
> timeouts. Check this class once:
> https://www.nsnam.org/doxygen/classns3_1_1_wifi_remote_station_manager.html
>
> Might be some other issue also but hard to say without knowing scenario.
>
> Best,
> Karan Raj Baruah
>
> On Thursday, 16 September, 2021, 02:04:17 am IST, sangita...... <
> sangita.engg at gmail.com> wrote:
>
>
> Hi Karan,
> Thanks for the reply.
>
>? I kept the lifetime as 10 seconds. Your words are true that my interest
> are not reaching to any producer (destination) but as per my understanding
> that should not halt the simulation in the midway. When a interest will not
> reach to any producer , time out will happen and pit entry for those
> intereste will be evicted.
>
> Do you have a clear idea what actually happened when a time out take place
> ?
>
> Thanks and regards,
> Sangita
>
> On Wed, Sep 15, 2021, 20:47 Karan Raj Baruah via ndnSIM <
> ndnsim at lists.cs.ucla.edu> wrote:
>
> Hello Sangita,
>
> How much is the value of lifetime that you set when causing the issues?
> Also, when you set the lifetime manually can you verify from your tracer
> logs that the packets are actually sent(and duration for interest to
> reach)? It might be because latency between ports is too high that when you
> change it the interest may not reach the destination at all(even on
> retransmission).
>
> Best,
> Karan
>
>
>
>
>
>
>
>
>
> On Thursday, 16 September, 2021, 12:30:08 am IST,
> ndnsim-request at lists.cs.ucla.edu <ndnsim-request at lists.cs.ucla.edu>
> wrote:
>
> Message: 2
> Date: Wed, 15 Sep 2021 11:11:04 +0100
> From: "sangita......" <sangita.engg at gmail.com>
> To: ndnsim at lists.cs.ucla.edu
> Subject: [ndnSIM] Simulation halts with small lifetime of interest
> Message-ID:
>? ? <CALbsVCFQgTWn9VaK8sW-n1ftoGZ+s4t7URoV9r9F7j_HemJMqw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Dear members,
> I am developing a vehicular network by incorporating sumo in ndnsim using
> the traci client.
> In my simulation the consumer generates interest in some zipf-mandelbroute
> fashion. Whenever I am keeping life time of each interest smaller than the
> total simulation time, somewhere my simulation halts with the below
> message:
> Error: tcpip::Socket::recvAndCheck @ recv: peer shutdown
> Quitting (on error).
>
> However, it runs fine when I keep the lifetime of each interest bigger than
> the total simulation time.
>
> Can anyone give me any clue on what can be the problem?
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