changeset: 8119:3d0f2a5d4966
tag: tip
parent: 8116:be0f5c394a01
user: praveen.malv...@oracle.com
date: Wed Sep 21 16:09:49 2016 +0530
summary: amfd: do not flush imm jobs on active controller[#2016]
Will be pushing in other branches after 5,1 GA announcement.
---
** [tickets:#2016] amf: active amfd may flush imm jobs when IMM returns
BAD_HANDLE.**
**Status:** review
**Milestone:** 5.0.2
**Created:** Fri Sep 09, 2016 10:19 AM UTC by Praveen
**Last Updated:** Tue Sep 20, 2016 05:54 PM UTC
**Owner:** Praveen
**Attachments:**
-
[comp_fail.xml](https://sourceforge.net/p/opensaf/tickets/2016/attachment/comp_fail.xml)
(11.0 kB; text/xml)
-
[is_imp.tgz](https://sourceforge.net/p/opensaf/tickets/2016/attachment/is_imp.tgz)
(14.0 kB; application/x-compressed)
AMF pushes IMM updates in a queue to be updated in after finishing main job.
Currently, standby amfd as a applier flushes job queue if it no. of elements
reaches to 200.
Since the check is on implementer status, active controller may flush it when
it loses implementer status and goes for reinit with IMM(one case is when IMM
returns BAD_HANDLE, a rare case):
if (!avd_cb->is_implementer) {
check_and_flush_job_queue_standby_amfd();
return JOB_EINVH;
}
In the attached tar, there is a patch which forces amfd to finalize with IMM.
After finalizing, when it goes to update attributes in IMM, it gets BAD_HANDLE
and it reinitializes with IMM by setting its implemeter status flag as false
temporarily.
steps to reproduce with the patch:
1)Bring one controller up.
2)Bring up the attached model.
3)kill the only comonent. AMF will finzlize with IMM and it will flush job
queue.
Because of this amf-state su will show su in terminating state:
safSu=SU1,safSg=AmfDemo,safApp=AmfDemo1
saAmfSUAdminState=UNLOCKED(1)
saAmfSUOperState=ENABLED(1)
saAmfSUPresenceState=TERMINATING(4)
saAmfSUReadinessState=OUT-OF-SERVICE(1)
But it is actually moved in UNINSTANTIATED state. This can be verified by
dumping amf state:
dn: safSu=SU1,safSg=AmfDemo,safApp=AmfDemo1
saAmfSUPreInstantiable: 1
saAmfSUOperState: DISABLED
saAmfSUAdminState: LOCKED_INSTANTIATION
saAmfSuReadinessState: OUT_OF_SERVICE
saAmfSUPresenceState: UNINSTANTIATED
saAmfSUHostedByNode: safAmfNode=SC-1,safAmfCluster=myAmfCluster
All state machines inside AMF are correct. But a use may not be able to see
correct state of AMF entities.
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