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Are the DNS requests used only to scale up in anticipation of more traffic, or is a steady stream of DNS requests required to keep the instances running once t

Are the DNS requests used only to scale up in anticipation of more traffic, or is a steady stream of DNS requests required to keep the instances running once they are started? I see that there is an expiration TTL, but what happens if there is a download in progress for longer than the VM expiration time? Also how well does this work with persistent HTTP connections (and TLS handshakes)? i.e. will the browser keep a persistent connection to the jitsu proxy and the actual requests might be served by different VMs?

amirmc 12y ago
We're actually putting a paper together that uses Jitsu so you might find that answers most of your questions (the team is busy with eval at the moment). For the time-being, Jitsu [1] 'just' spawns a unikernel which serves requests, with no apparently latency for the requester. At some point, when the unikernel hasn't done anything for a while, it is culled (which is something of an implementation detail). In principle, we should be able to use this as part of a set of tools to create the hyper-elastic clouds mentioned upthread. [1] Just in Time Summoning of Unikernels