Gordon,
I want to know the algorithm for fault-tolerant in Sequoia.
Thanks in advance and any advise is appreciated.
If you want to know how Sequoia performs failover, it happens in the
Sequoia driver (in case of a controller failure) and the failover policy
is defined in the driver URL options (see the driver documentation).
If a backend fails, the failover policy depends on the load balancer. If
you are using RAIDb-1, usually reads are retried on other backends and
writes are executed in parallel on all backends so the faulty backend is
just automatically disabled.
Hope this helps,
Emmanuel
--
Emmanuel Cecchet
FTO @ Frog Thinker
Open Source Development & Consulting
--
Web: http://www.frogthinker.org
email: [email protected]
Skype: emmanuel_cecchet
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