Summary: AMF comp failover correction
Review request for Trac Ticket(s): 598
Peer Reviewer(s): Nags
Pull request to: <<LIST THE PERSON WITH PUSH ACCESS HERE>>
Affected branch(es): 4.4 & default
Development branch: default

--------------------------------
Impacted area       Impact y/n
--------------------------------
 Docs                    n
 Build system            n
 RPM/packaging           n
 Configuration files     n
 Startup scripts         n
 SAF services            y
 OpenSAF services        n
 Core libraries          n
 Samples                 n
 Tests                   n
 Other                   n


Comments (indicate scope for each "y" above):
---------------------------------------------

The same change already exist in 4.3 but was removed when SU failover support
was introduced for 4.4. This patch just reintroduces the same logic.

changeset 2d0faab7949461c702c02d75b399dc65a9c8bfbf
Author: Hans Feldt <[email protected]>
Date:   Fri, 14 Feb 2014 13:57:00 +0100

        amfnd: report failover after comp cleanup [#598]

        If a component error is detected and the recovery action is
        COMPONENT_FAILOVER, it is possible that a standby component gets the 
active
        assignment before the erroneous component has been terminated. This can
        cause a split brain on application level.

        The reason for this is that when the error is detected amfnd starts two
        parallel activities, component cleanup and inform director. When the
        director receives the information it starts the process of failing over 
the
        workload of the erroneous component.

        This patch informs the director after successful termination has been
        performed.


Complete diffstat:
------------------
 osaf/services/saf/amf/amfnd/clc.cc            |  9 +++++++++
 osaf/services/saf/amf/amfnd/di.cc             |  2 +-
 osaf/services/saf/amf/amfnd/err.cc            |  9 +++++----
 osaf/services/saf/amf/amfnd/include/avnd_di.h |  2 +-
 4 files changed, 16 insertions(+), 6 deletions(-)


Testing Commands:
-----------------
 Test comp and SU failover in 2N


Testing, Expected Results:
--------------------------
 Works as expected. Remember it is a timing issue if cleanup is performed before
 activation of the standby so to actually verify that can be tricky.


Conditions of Submission:
-------------------------
 Ack from Nags


Arch      Built     Started    Linux distro
-------------------------------------------
mips        n          n
mips64      n          n
x86         n          n
x86_64      n          n
powerpc     n          n
powerpc64   n          n


Reviewer Checklist:
-------------------
[Submitters: make sure that your review doesn't trigger any checkmarks!]


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