- **Milestone**: 5.18.09 --> 5.18.12
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** [tickets:#2698] clm: Handle client requests locally on each node**
**Status:** unassigned
**Milestone:** 5.18.12
**Created:** Tue Nov 21, 2017 06:23 PM UTC by Anders Widell
**Last Updated:** Thu Aug 30, 2018 12:45 PM UTC
**Owner:** nobody
Improve the availability of the CLM service by handling all client requests
locally on each node, instead of asking the server. This will in particular
improve the situation during and after headless, where clients could be
unaffected by a temporary loss of all OpenSAF system controller nodes.
To implement this, the CLM server should broadcast cluster membership
information to all CLM node agents, so that all needed information is available
locally on each node. The CLM node agent will handle track subscriptions etc
locally.
In-service upgrade of this feature ought to be possible. The CLM node agent can
detect that CLM server is running an old version of OpenSAF, and use the old
protocol to retrieve the same information as the new version would broadcast
out to all nodes.
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