- **status**: assigned --> review
- **Part**: - --> d
- **Comment**:
Analysis:
In the reported problem, stopped node consists of active and standby SUs for
two SIs.
When this node is stopped, AMFD tries to failover the SUs. For the active SU it
deletes
the SUSI for both SIs. Since failover of this SU is not possible as standby
assignment
also resides (susi to be deleted) on the stopped node only, AMFD runs new
assignment logic.
Since no SU is available for active assignment for any SI, AMFD tries for fresh
standby assignments.
In the logic of assigning standby HA state, AMFD checks if active assignments
are there by checking
list_of_susi and also check if standby assignment is present. Here it must be
noted that AMFD
checks only list_of_susi and not the HA state and it assumes that since
list_of_susi is not null
it means active assignment are there. In the reported problem since both active
and standby
assignments resides on the stopped node, AMFD gets list_of_susi non-null
(contains susi for standby
HA state which will be deleted in failover logic of node). Since only one
susi(assuming it active)
is present AMFD goes for standby assignments.
---
** [tickets:#1562] AMF : (NPM ) Standby assignments are done with out any
active assignment**
**Status:** review
**Milestone:** 4.6.2
**Created:** Fri Oct 23, 2015 01:59 PM UTC by Srikanth R
**Last Updated:** Wed Jan 13, 2016 05:00 AM UTC
**Owner:** Praveen
**Attachments:**
-
[1562.tgz](https://sourceforge.net/p/opensaf/tickets/1562/attachment/1562.tgz)
(178.3 kB; application/x-compressed-tar)
Changeset : 6901
Setup : NPM application with 4 SUs hosted on PL-3 & PL-4 and 4SIs
SU1 & SU3 hosted on PL-3 , SU2 & SU4 hosted on PL-4
Steps :
After a series of operation on the NPM application, below are the state of
assignments
****************************************************************************
| TestApp_SI1 | TestApp_SI2 | TestApp_SI3 | TestApp_SI4
****************************************************************************
TestApp_SU1| ACTIVE | ACTIVE |
|
TestApp_SU2| | |
ACTIVE | ACTIVE
TestApp_SU3| STANDBY | STANDBY | STANDBY
|
TestApp_SU4| | |
| STANDBY
****************************************************************************
After opensafd is stopped on PL-3, below are the assignments
****************************************************************************
TestApp_SI1 TestApp_SI2 TestApp_SI3 TestApp_SI4
****************************************************************************
TestApp_SU1
TestApp_SU2
ACTIVE ACTIVE
TestApp_SU3
TestApp_SU4 STANDBY STANDBY
STANDBY
****************************************************************************
Corresponding log in syslog on PL-4 :
Oct 23 19:00:29 PAYLOAD-2 osafimmnd[8101]: NO Implementer disconnected 40 <0,
2010f> (MsgQueueService131855)
Oct 23 19:00:29 PAYLOAD-2 osafamfnd[8120]: NO Assigning
'safSi=TestApp_SI1,safApp=TestApp_Npm' STANDBY to
'safSu=TestApp_SU4,safSg=TestApp_SG1,safApp=TestApp_Npm'
Oct 23 19:00:29 PAYLOAD-2 osafamfnd[8120]: NO Assigning
'safSi=TestApp_SI2,safApp=TestApp_Npm' STANDBY to
'safSu=TestApp_SU4,safSg=TestApp_SG1,safApp=TestApp_Npm'
Oct 23 19:00:29 PAYLOAD-2 osafamfnd[8120]: NO Assigned
'safSi=TestApp_SI2,safApp=TestApp_Npm' STANDBY to
'safSu=TestApp_SU4,safSg=TestApp_SG1,safApp=TestApp_Npm'
Oct 23 19:00:29 PAYLOAD-2 osafamfnd[8120]: NO Assigned
'safSi=TestApp_SI1,safApp=TestApp_Npm' STANDBY to
'safSu=TestApp_SU4,safSg=TestApp_SG1,safApp=TestApp_Npm'
Oct 23 19:00:32 PAYLOAD-2 kernel: [ 7785.128227] TIPC: Resetting link
<1.1.4:eth3-1.1.3:eth3>, peer not responding
Attached is amfd.state and amfd traces on active controller, amfnd trace on
payload hosting SU2 & SU4 and also the NPM configuration.
---
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