For example, Feb 01 2016 some tunnels were lost near the end of the business day. We have a nightly restart of the tunnel via a cron job but unless there is a person available, nightly testing will fail until the restart. Sauce Connect should be able to detect the tunnel has failed and reestablish a tunnel automatically.
https://wiki.saucelabs.com/display/DOCS/High+Availability+Sauce+Connect+Setup
It won't save any tests already running in a failed tunnel, but it'll ensure you have more tunnels ready to failover to.
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