- **status**: review --> unassigned
- **Milestone**: 5.21.09 --> future
---
** [tickets:#2451] clm: Make the cluster reset admin op safe**
**Status:** unassigned
**Milestone:** future
**Created:** Wed May 03, 2017 10:51 AM UTC by Anders Widell
**Last Updated:** Tue Sep 14, 2021 05:53 AM UTC
**Owner:** Hans Nordebäck
The cluster reset admin operation that was implemented in ticket [#2053] is not
safe: if a node reboots very fast it can come up again and join the old cluster
before other nodes have rebooted. See mail discussion:
https://sourceforge.net/p/opensaf/mailman/message/35398725/
This can be solved by implementing a two-phase cluster reset or by introducing
a cluster generation number which is increased at each cluster reset (maybe
both ordered an spontaneous cluster resets). A node will not be allowed to join
the cluster with a different cluster genration without first rebooting.
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