- **labels**: --> #79, #1170
- Description has changed:
Diff:
~~~~
--- old
+++ new
@@ -1,22 +1,18 @@
-Cloned from http://devel.opensaf.org/ticket/1766
+The purpose of this enhancement is to propose enhancing the OpenSAF cluster
management/membership approach to:
+- Perform high level node monitoring(heartbeating)
+- Enhanced split-brain avoidance techniques.
+RAFT is being considered for implementing the above cluster management
enhancements.
+.
+The scope of this ticket includes the following:
-Some text in the original ticket description is questionable. But, migrating
this ticket for reference. This ticket has also to be read in parallel with
https://sourceforge.net/p/opensaf/tickets/220/.
+(a) Implement RAFT and/or RAFT adaptation layer that provides interfaces for
+- adding/removing nodes to the cluster membership
+- querying leader
+- callbacks notifying about new leader
+- read/write interface
+- notification of nodes joining/leaving the cluster membership
+Note: Yet to be seen if a leader yield interface is necessary
+(b) an interface that alows invoking a fencing mechanism
-
-The current OpenSAF cluster management takes a fairly minimalistic approach in
that it only requires that a node have connectivity to the current active
controller and there is no active health monitoring performed of the current
member cluster nodes.
-The purpose of this enhancement is to propose enhancing the OpenSAF cluster
management/membership approach to:
-- Ensure a prospective node has network connectivity to all current cluster
members
-- Perform minimal health monitoring of cluster node members to detect fault
conditions not currently detected with today's approach
-- Better handle split-brain conditions
-
-
-Changed 2 years ago by dfick
-
-
-owner changed from murthy to mathi
-component changed from opensaf to saf/clmsv
-Changed 2 years ago by mathi
-
-
-Full mesh connectivity determination and quorum based indication for enhanced
cluster 'management' should either come in as a new service/layer and/or
eventually as an enhanced NODE_UP/NODE_DOWN message into CLM, thus keeping
intact the current mechanism to feed CLM with connection evidences.
+(c) an interface that allows invoking an arbitration mechanism
~~~~
- **status**: unassigned --> assigned
---
** [tickets:#439] Enhanced cluster management**
**Status:** assigned
**Milestone:** 5.0.FC
**Labels:** #79 #1170
**Created:** Fri May 31, 2013 11:15 AM UTC by Mathi Naickan
**Last Updated:** Wed Nov 25, 2015 11:49 AM UTC
**Owner:** Mathi Naickan
The purpose of this enhancement is to propose enhancing the OpenSAF cluster
management/membership approach to:
- Perform high level node monitoring(heartbeating)
- Enhanced split-brain avoidance techniques.
RAFT is being considered for implementing the above cluster management
enhancements.
.
The scope of this ticket includes the following:
(a) Implement RAFT and/or RAFT adaptation layer that provides interfaces for
- adding/removing nodes to the cluster membership
- querying leader
- callbacks notifying about new leader
- read/write interface
- notification of nodes joining/leaving the cluster membership
Note: Yet to be seen if a leader yield interface is necessary
(b) an interface that alows invoking a fencing mechanism
(c) an interface that allows invoking an arbitration mechanism
---
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