2566
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Dave Cheney |
10 years ago
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2565
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Andrew Wilkins |
10 years ago
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2564
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Tim Penhey |
10 years ago
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2563
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Tim Penhey |
10 years ago
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2562
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Ian Booth |
10 years ago
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2561
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Jason Hobbs |
10 years ago
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2560
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Casey Marshall |
10 years ago
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2559
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Casey Marshall |
10 years ago
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2558
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William Reade |
10 years ago
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2557
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Andrew Wilkins |
10 years ago
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2556
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Dave Cheney |
10 years ago
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2555
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Andrew Wilkins |
10 years ago
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2554
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[r=axwalk] provider/azure: enable load-balancing/availability
This change is required to enable Availability Set support for Azure. The existing implementation was fundamentally incompatible with Availability Sets, so the implementation has been significantly altered, while maintaining backwards compatibility.
In the old implementation, instances are associated one-to-one with Cloud Services. In the new implementation, instances are associated with Roles within a Cloud Service; there may be multiple Roles within a single Cloud Service.
If a service is exposed, then its ports will be load- balanced across each instance within the cloud service which opens that port. We currently open ports 22 for all instances, and the Mongo and API server ports for state server instances. State server instances are allocated to a single Cloud Service.
There are a number of incidental improvements, e.g. using an updated version of DeleteHostedService which destroys associated disks/blobs server side.
All instances are now allocated to an Availability Set called "juju", which is scoped to the Cloud Service. We do not currently group units into Cloud Services automatically, however the ground work is laid to do this. A follow-up will implement this work.
When we enable grouping, the same time we will have to make changes to how we connect to machines via SSH, either by proxying through an arbitrary machine in the Cloud Service, or by not load balancing port 22 and connecting to the machine's auto-allocated public port.
https://codereview.appspot.com/73910043/
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Andrew Wilkins |
10 years ago
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2553
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Jesse Meek |
10 years ago
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2552
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Andrew Wilkins |
10 years ago
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2551
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Andrew Wilkins |
10 years ago
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2550
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Dave Cheney |
10 years ago
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2549
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Wayne Witzel III |
10 years ago
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2548
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Wayne Witzel III |
10 years ago
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2547
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Roger Peppe |
10 years ago
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