Is it obligatory that controller must have a slower slot_id than payload if we 
want to enable "headless" feature? 
If it is obligatory, seems it's a big change to our architecture, but I will 
have a try at least.

Thanks,
Jianfeng

-----Original Message-----
From: Anders Widell [mailto:anders.wid...@ericsson.com] 
Sent: Tuesday, October 11, 2016 2:30 PM
To: Jianfeng Dong <jd...@juniper.net>; Neelakanta Reddy 
<reddy.neelaka...@oracle.com>; opensaf-users@lists.sourceforge.net
Subject: Re: [users] OpenSAF release 5.0.1 can not promote SC after enable 
"headless cluster" feature

There is a one-to-one mapping between /etc/opensaf/slot_id and the node_id. 
Simply make sure that all your system controller nodes have lower slot_id than 
any of your payloads. This file is read when the node is booted. You should be 
able to do an in-service renumbering of your nodes - just be careful so that 
you never have two nodes with the same node_id at the same time.

Yes, the assumption is there in 5.1.0 as well.

regards,

Anders Widell


On 10/11/2016 04:29 AM, Jianfeng Dong wrote:
> Yes, in our product payload's node_id is lower than SC, could you please tell 
> us how to configure it?
>
> And, does this assumption exist in OpenSAF 5.1.0 as well?
>
> Thanks,
> Jianfeng
>
> -----Original Message-----
> From: Anders Widell [mailto:anders.wid...@ericsson.com]
> Sent: Tuesday, October 11, 2016 12:55 AM
> To: Jianfeng Dong <jd...@juniper.net>; Neelakanta Reddy 
> <reddy.neelaka...@oracle.com>; opensaf-users@lists.sourceforge.net
> Subject: Re: [users] OpenSAF release 5.0.1 can not promote SC after 
> enable "headless cluster" feature
>
> There is a (probably not so well documented :-) assumption that the system 
> controllers are configured with a lower node_id than the payloads. From what 
> I can see in the logs you sent, I think it looks like you have configured the 
> payload with a lower node_id than the system controllers.
>
> By the way, the headless feature has been improved in OpenSAF 5.1.0 so I 
> would suggest that you upgrade to that version if possible.
>
> regards,
>
> Anders Widell
>
>
> On 10/10/2016 06:04 PM, Jianfeng Dong wrote:
>> I tried with sufficient drive space but got same result, neither of the two 
>> SCs can be promoted to be controller until the payload reboot.
>>
>> I also checked the network link between SC and payload, they can PING each 
>> other when this issue happened. I suspect too the problem is caused by 
>> IMMD/IMMND link among those nodes, but don't know how to prove it.
>>
>> From: Neelakanta Reddy [mailto:reddy.neelaka...@oracle.com]
>> Sent: Monday, October 10, 2016 8:39 PM
>> To: Jianfeng Dong <jd...@juniper.net>; 
>> opensaf-users@lists.sourceforge.net
>> Subject: Re: [users] OpenSAF release 5.0.1 can not promote SC after 
>> enable "headless cluster" feature
>>
>> Hi,
>>
>> Once after the "Headless" if any of the controller started then the IMMND 
>> from the payaload will send the intro message to IMMD.
>> Looks like this did not happen, the following is the log from the payload:
>>
>> 2016-10-10T11:09:18.507851+08:00 pld0101 osafimmnd[3141]: message 
>> repeated 2 times: [ logtrace: write failed, No space left on device]
>> 2016-10-10T11:09:18.507883+08:00 pld0101 osafimmnd[3141]: NO 
>> Re-introduce-me highestProcessed:23839 highestReceived:23839
>> 2016-10-10T11:09:18.508011+08:00 pld0101 osafimmnd[3141]: logtrace:
>> write failed, No space left on device
>> 2016-10-10T11:09:18.508129+08:00 pld0101 osafimmnd[3141]: logtrace:
>> write failed, No space left on device
>> 2016-10-10T11:09:18.508501+08:00 pld0101 osafimmnd[3141]: WA MDS Send 
>> Failed to service:IMMD rc:2
>>
>>
>> Retry, again with the sufficient space in payload.
>>
>> /Neel.
>>
>> On 2016/10/10 03:59 PM, Jianfeng Dong wrote:
>>
>> Hi,
>>
>>
>>
>> For several years we use OpenSAF(4.5.2 now) to provide HA service in our 
>> product(including 2 SC and several payload cards), but our customer keep on 
>> requiring that it's better to do NOT reboot payload card even if both SC 
>> reload or hang.
>>
>>
>>
>> We just knew that the new release 5.0.0 has provided this feature(i.e. 
>> "headless cluster"), so we installed 5.0.0 into our product and enable 
>> "headless" feature by setting "IMMSV_SC_ABSENCE_ALLOWED" to 900 seconds. 
>> After installation we found it worked fine, our system with new OpenSAF 
>> release can start to run successfully, all SC and payload cards can be "UP", 
>> and payload card will NOT reboot immediately after we reload both SC.
>>
>>
>>
>> However we got a problem that, neither of two SC can't be promoted to be 
>> controller after reboot until the "headless" payload reboot due to 
>> 'IMMSV_SC_ABSENCE_ALLOWED' timeout after 900 seconds. Seems OpenSAF modules 
>> in both SC just wait there and do nothing, till payload reboot due to 
>> timeout, then OpenSAF in SC continue to run, whole system recovered finally.
>>
>>
>>
>> We thought ticket #1828 may has resolved this issue so we took another try 
>> with release 5.0.1 but got same result.
>>
>>
>>
>> Could you please tell us in our case, why OpenSAF in both SC could not run 
>> until payload card(in "headless" status) rebooted due to timeout?
>>
>> Besides 'IMMSV_SC_ABSENCE_ALLOWED', is there any other variable or parameter 
>> need to set/modify to enable 'headless cluster' feature? Do we miss anything?
>>
>> Attachments are the syslog of SC and payload card when this problem 
>> happened, hope the log files can help us to find out the root cause.
>>
>>
>>
>> Much appreciated to any comment, thanks!
>>
>>
>>
>> Regards,
>>
>> Jianfeng Dong
>>
>>
>>
>>
>>
>>
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