Hi Minh Chau,
On 4/26/2017 12:05 PM, minh chau wrote:
> amfnd will receive another NCSMDS_DOWN
you mean amfnd is receiving NCSMDS_DOWN for same amfd twice ?
or amfnd is receiving NCSMDS_DOWN for both active amfd & standby amfd ?
-AVM
On 4/26/2017 12:05 PM, minh chau wrote:
>
> @Suryanarayana: I think this fix makes AMFND a bit defensive, but
> let's see Mahesh's comments
> @Mahesh: If getting NCSMDS_DOWN, then there's no active to wait, so
> MDS should stop this timer?
>
>
> On 26/04/17 15:45, Suryanarayana.Garlapati wrote:
>> Might be i guess this fix needs to be done at the MDS level, not at
>> the AMFND, taking into consideration that the cluster
>>
>> has only two Controllers.
>>
>> Timer which is getting started at MDS should not be started(if
>> started should be stopped) in case of getting the down for both of
>> the amfd's.
>>
>>
>>
>> On Wednesday 26 April 2017 10:53 AM, Minh Chau wrote:
>>> If cluster goes into headless stage and wait up to 3 mins
>>> which is currently the timeout of MDS_AWAIT_ACTIVE_TMR_VAL,
>>> amfnd will receive another NCSMDS_DOWN, and then delete
>>> all buffered messages. As a result, the headless recovery
>>> is impossible because these buffered messages are deleted.
>>>
>>> Patch ignores the second NCSMDS_DOWN.
>>> ---
>>> src/amf/amfnd/di.cc | 7 +++++++
>>> 1 file changed, 7 insertions(+)
>>>
>>> diff --git a/src/amf/amfnd/di.cc b/src/amf/amfnd/di.cc
>>> index 627b31853..e06b9260d 100644
>>> --- a/src/amf/amfnd/di.cc
>>> +++ b/src/amf/amfnd/di.cc
>>> @@ -638,6 +638,13 @@ uint32_t avnd_evt_mds_avd_dn_evh(AVND_CB *cb,
>>> AVND_EVT *evt) {
>>> }
>>> }
>>> + // Ignore the second NCSMDS_DOWN which comes from timeout of
>>> + // MDS_AWAIT_ACTIVE_TMR_VAL
>>> + if (cb->is_avd_down == true) {
>>> + TRACE_LEAVE();
>>> + return rc;
>>> + }
>>> +
>>> m_AVND_CB_AVD_UP_RESET(cb);
>>> cb->active_avd_adest = 0;
>>
>>
>
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