???? ??? wrote:
> Hi Ashu,
> I see the bug report
> http://bugs.opensolaris.org/view_bug.do?bug_id=6616644 that was
> reported about the same problem.
> Was it fixed and in which version of Solaris ?

Leon,

It looks like that bug was closed as a duplicate of 6529822, which was 
fixed in build 88 of ON.

I don't know anything more than that, though.

Thanks,
Nick

> 
> Thanks,
> -- Leon
> 
> On Thu, Nov 1, 2007 at 11:57 PM, Ashutosh Tripathi
> <Ashutosh.Tripathi at sun.com> wrote:
>> Hi Leon, Jacob,
>>
>>        Both of you asked for more details about clhbsndr.
>>
>> Cluster membership is a very detailed and complex topic and
>> i would encourage you to participate in a Open HA Cluster user group
>> meeting happening near you (or Sun Tech Days where SC presents
>> too), to learn more in depth about it. You can meet face2face with
>> cluster engineers for detailed back and forth technical discussions.
>>
>>        On the e-mail, i can only go so deep, but i would try
>> to answer your questions, at least at a high level. Please
>> see below.
>>
>> Leon Koll wrote:
>>> Hi Ashu,
>>>
>>> thank you for your efforts.
>>> Two questions:
>>> 1.the clhbsndr module is undocumented, that's why I am asking:
>>> why the cluster needs it on PUBLIC interfaces?
>>> My guess - it's not needed there but it's much easier to push it to
>>> all interfaces than to find the private ones and to push it to their
>>> stack.
>>        It is needed in some situations. Particularly in Solaris9 where
>> network interrupts coming in on the public network can interfere with
>> cluster heartbeats. clhbsndr modules helps in such situations.
>>
>>> 2.Another problem that we saw is : the nxge interface is not in
>>> /etc/iu.ap file. Looks like a resurrection of 5-years-old 4643340 bug.
>>> How the cluster works with private interconnect on nxge's without the
>>> clhbsndr module?
>>        On the private interconnects, a different mechanism is used as
>> the Cluster framework controls the plumbing and setup of the network
>> stack. For the public network, update to iu.ap file is needed, as
>> you have found out in 4643340.
>>
>>        Always consult SC support matrix for questions about specific
>> hardware support.
>>
>> Jacob wrote:
>>> Do you have an estimate on official statement/release?
>>        I don't have an estimate right now. I hesitate to speculate
>> on where this would go. One of my colleagues alerted me to the fact that
>> there is an ongoing Escalation on this issue, so i would just say that
>> rest assured that SUN is looking at this as a high priority issue.
>>
>> HTH,
>> -ashu
>>
>>
>>
>>> On 11/1/07, Ashutosh Tripathi <Ashutosh.Tripathi at sun.com> wrote:
>>>> Hi Leon,
>>>>
>>>> Thanks for getting back to us on this.
>>>>
>>>> We are still analyzing the issue and are not sure yet if the
>>>> problem is with the clhbsndr module, its interactions with
>>>> the Solaris STREAMS framework, or something else entirely.
>>>>
>>>> While we are working on an official statement on this. I would
>>>> suggest the following unofficial approach in the meantime.
>>>>
>>>>        Go ahead and run without the clhbsndr module on the
>>>> cluster public interface, but beware that in case you log a
>>>> support call on this cluster, particularly if it is related
>>>> to cluster membership and heartbeats, the cluster support
>>>> personnel may request you to reproduce the issue without
>>>> this interim fix.
>>>>
>>>> Hope that answers your questions,
>>>>
>>>> Best Regards,
>>>> -ashu
>>>>
>>>>
>>>> Leon Koll wrote:
>>>>> Hi Ashu,
>>>>>
>>>>> I am working with Jacob on this problem.
>>>>> The command you've sent fixed the problem.
>>>>> Q1: Is it safe to remove the clhbsndr module from cluster public
>>>>> interfaces ?
>>>>> Q2: Is it a know bug?
>>>>>
>>>>> Thanks a lot,
>>>>> -- Leon
>>>>>
>>>>> On 11/1/07, Ashutosh Tripathi <Ashutosh.Tripathi at sun.com> wrote:
>>>>>> Hi Jacob,
>>>>>>
>>>>>> Additionally,
>>>>>>
>>>>>> Can you remove the clhbsndr module from the e1000g adapter:
>>>>>>
>>>>>> eg: ifconfig e1000g0 modremove clhbsndr at 2
>>>>>>
>>>>>> and report back what you find?
>>>>>>
>>>>>> Thanks,
>>>>>> -ashu
>>>>>>
>>>>>>
>>>>>> LaoTsao(Dr. Tsao) wrote:
>>>>>>> hi
>>>>>>> May be this is releated to the IPMP that is required by Sun cluster
>>>>>>> When U run iperf -s server-IP  did U use the Logicalhost IP address of
>>>>>>> the server?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Jacob wrote:
>>>>>>>
>>>>>>>> Hi List,
>>>>>>>> I've heard many good things about this list and the opensolaris
>>>>>>>> community,I sure hope someone here can help me out here.
>>>>>>>>
>>>>>>>> One of our systems is suffering for a very poor network throughput,
>>>>>>>> which appears to be affected by Sun Cluster.
>>>>>>>>
>>>>>>>> The system consists of 3 T2000 machines in Sun Cluster(3.2) running
>>>>>>>> on Solaris 10 u4.
>>>>>>>> The network throughput in non cluster mode is about 800mbit on a
>>>>>>>> single e1000g interface.
>>>>>>>> The Network [b]throughput falls by about 50%[/b] when booting the
>>>>>>>> machine(s) in cluster mode.
>>>>>>>> To isolate possible LAN problems, I've connected two machines using
>>>>>>>> cross cable - same result.
>>>>>>>>
>>>>>>>> The problem was reproduced by installing a brand new T2000 machine
>>>>>>>> with similar configuration as a single node cluster.
>>>>>>>>
>>>>>>>> All throughput measurements were done using iperf.
>>>>>>>>
>>>>>>>> Have anyone encountered something similar?
>>>>>>>> Does anyone have experience with T2000 machines in Sun Cluster with
>>>>>>>> regard to Network performance?
>>>>>>>>
>>>>>>>> Thanks in advance,
>>>>>>>> --
>>>>>>>>
>>>>>>>> This message posted from opensolaris.org
>>>>>>>>
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>>>>>>>>
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