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{"doc/arch-design-draft/source/design-compute.rst":[{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"aac574cc92c28c354d7d21166c924aaf9b318ae8","unresolved":false,"context_lines":[{"line_number":1,"context_line":"\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d"},{"line_number":2,"context_line":"Compute Nodes"},{"line_number":3,"context_line":"\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d"},{"line_number":4,"context_line":""},{"line_number":5,"context_line":"This chapter describes some of the choices you need to consider"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_6017e1a3","line":2,"range":{"start_line":2,"start_character":8,"end_line":2,"end_character":13},"updated":"2016-07-28 12:37:33.000000000","message":"Fix the sentence case titles :)","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":1,"context_line":"\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d"},{"line_number":2,"context_line":"Compute Nodes"},{"line_number":3,"context_line":"\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d"},{"line_number":4,"context_line":""},{"line_number":5,"context_line":"This chapter describes some of the choices you need to consider"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_f5ff1a32","line":2,"range":{"start_line":2,"start_character":8,"end_line":2,"end_character":13},"in_reply_to":"bacf61ea_6017e1a3","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"aac574cc92c28c354d7d21166c924aaf9b318ae8","unresolved":false,"context_lines":[{"line_number":13,"context_line":"When designing compute resource pools, consider the number of processors,"},{"line_number":14,"context_line":"amount of memory, and the quantity of storage required for each hypervisor."},{"line_number":15,"context_line":""},{"line_number":16,"context_line":"Consider whether compute resources will be provided in a single pool or in"},{"line_number":17,"context_line":"multiple pools. 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The LVM back-end implements block storage"},{"line_number":176,"context_line":" as LVM logical partitions."},{"line_number":177,"context_line":""},{"line_number":178,"context_line":" On each host that will house block storage, an administrator must"},{"line_number":179,"context_line":" initially create a volume group dedicated to Block Storage volumes."},{"line_number":180,"context_line":" Blocks are created from LVM logical volumes."},{"line_number":181,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_f8238f03","line":178,"range":{"start_line":178,"start_character":19,"end_line":178,"end_character":29},"in_reply_to":"bacf61ea_3892034c","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":22314,"name":"Ryan Selden","email":"seldenr@icloud.com","username":"seldenr"},"change_message_id":"87f32578d48b359744f78593640cbcf79c32d022","unresolved":false,"context_lines":[{"line_number":217,"context_line":" aggregates the space and performance of disks linearly in hyper"},{"line_number":218,"context_line":" scale on commodity hardware in a smart way. On top of its object"},{"line_number":219,"context_line":" store, Sheepdog provides elastic volume service and http service."},{"line_number":220,"context_line":" Sheepdog does not assume anything about kernel version and can work"},{"line_number":221,"context_line":" nicely with xattr-supported file systems."}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_fd84f60b","line":221,"range":{"start_line":220,"start_character":0,"end_line":221,"end_character":42},"updated":"2016-08-03 21:23:59.000000000","message":"do you have a summary like the above systems of when it\u0027s recommended?","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":217,"context_line":" aggregates the space and performance of disks linearly in hyper"},{"line_number":218,"context_line":" scale on commodity hardware in a smart way. On top of its object"},{"line_number":219,"context_line":" store, Sheepdog provides elastic volume service and http service."},{"line_number":220,"context_line":" Sheepdog does not assume anything about kernel version and can work"},{"line_number":221,"context_line":" nicely with xattr-supported file systems."}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_989533e6","line":221,"range":{"start_line":220,"start_character":0,"end_line":221,"end_character":42},"in_reply_to":"bacf61ea_fd84f60b","updated":"2016-08-09 04:02:35.000000000","message":"I\u0027ll add this as a TODO.","commit_id":"91d03af809607047142e4db10a1df3ac35756569"}],"doc/arch-design-draft/source/design-storage/design-storage-concepts.rst":[{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":12,"context_line":""},{"line_number":13,"context_line":"If you deploy only the OpenStack :term:`Compute service` (nova), by default"},{"line_number":14,"context_line":"your users do not have access to any form of persistent storage. The disks"},{"line_number":15,"context_line":"associated with VMs are \"ephemeral,\" meaning that from the user\u0027s point"},{"line_number":16,"context_line":"of view they disappear when a virtual machine is terminated."},{"line_number":17,"context_line":""},{"line_number":18,"context_line":"Persistent Storage"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_f8bfcba7","line":15,"range":{"start_line":15,"start_character":24,"end_line":15,"end_character":36},"updated":"2016-08-04 10:59:01.000000000","message":"you can remove the scare quotes","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":23,"context_line":"instance."},{"line_number":24,"context_line":""},{"line_number":25,"context_line":"OpenStack clouds explicitly support three types of persistent"},{"line_number":26,"context_line":"storage: *object storage*, *block storage*, and *file system storage*."},{"line_number":27,"context_line":""},{"line_number":28,"context_line":":ref:`table_openstack_storage` explains the different storage concepts"},{"line_number":29,"context_line":"provided by OpenStack."}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_5804177d","line":26,"range":{"start_line":26,"start_character":9,"end_line":26,"end_character":70},"updated":"2016-08-04 10:59:01.000000000","message":"I\u0027m going to stop commenting on the project/service names now.","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":23,"context_line":"instance."},{"line_number":24,"context_line":""},{"line_number":25,"context_line":"OpenStack clouds explicitly support three types of persistent"},{"line_number":26,"context_line":"storage: *object storage*, *block storage*, and *file system storage*."},{"line_number":27,"context_line":""},{"line_number":28,"context_line":":ref:`table_openstack_storage` explains the different storage concepts"},{"line_number":29,"context_line":"provided by OpenStack."}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_58945be1","line":26,"range":{"start_line":26,"start_character":9,"end_line":26,"end_character":70},"in_reply_to":"bacf61ea_5804177d","updated":"2016-08-09 04:02:35.000000000","message":"fair enough :)","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":11804,"name":"Shaun OMeara","email":"shaun@omeara.co.za","username":"shauno"},"change_message_id":"5bfe00d91e3b8686858ab93b32d83118bc2f8c9b","unresolved":false,"context_lines":[{"line_number":112,"context_line":""},{"line_number":113,"context_line":"Object Storage"},{"line_number":114,"context_line":"--------------"},{"line_number":115,"context_line":""},{"line_number":116,"context_line":"Object storage is implemented in OpenStack by the"},{"line_number":117,"context_line":"OpenStack Object Storage (swift) project. Users access binary objects"},{"line_number":118,"context_line":"through a REST API. If your intended users need to"}],"source_content_type":"text/x-rst","patch_set":6,"id":"1aa78d24_6e4ca29e","line":115,"updated":"2016-07-06 07:34:39.000000000","message":"I would suggest that we write this section differently, I would start with an abstract of object storage and then describe how swift fits into it. I think this will match the rest of the sections better.\nI will provided a patch shortly with a suggestion.","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"6aa3f853d246b4eb439191325f777e994c049c6e","unresolved":false,"context_lines":[{"line_number":112,"context_line":""},{"line_number":113,"context_line":"Object Storage"},{"line_number":114,"context_line":"--------------"},{"line_number":115,"context_line":""},{"line_number":116,"context_line":"Object storage is implemented in OpenStack by the"},{"line_number":117,"context_line":"OpenStack Object Storage (swift) project. Users access binary objects"},{"line_number":118,"context_line":"through a REST API. If your intended users need to"}],"source_content_type":"text/x-rst","patch_set":6,"id":"1aa78d24_68645fb8","line":115,"in_reply_to":"1aa78d24_6e4ca29e","updated":"2016-07-07 02:02:25.000000000","message":"Sure, feel free to provide patch sets with your suggestions.","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10897,"name":"Joseph Robinson","email":"josephremail@gmail.com","username":"RobiJoe"},"change_message_id":"bc315a34281774ea5cc1021afc473815805f4221","unresolved":false,"context_lines":[{"line_number":133,"context_line":"documentation \u003chttp://docs.openstack.org/developer/swift/overview_architecture.html\u003e`_"},{"line_number":134,"context_line":""},{"line_number":135,"context_line":"When designing your cluster, you must consider durability and"},{"line_number":136,"context_line":"availability which is dependent on the spread and placement of your data,"},{"line_number":137,"context_line":"rather than the reliability of the"},{"line_number":138,"context_line":"hardware. Consider the default value of the number of replicas, which is"},{"line_number":139,"context_line":"three. This means that before an object is marked as having been"}],"source_content_type":"text/x-rst","patch_set":6,"id":"1aa78d24_092b5895","line":136,"updated":"2016-07-06 07:50:45.000000000","message":"Swap out \u0027which\u0027 for \u0027that\u0027 here, and add a comma - \"availability, that is dependent on the spread and placement of your data, rather than the reliability of the hardware.\"","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":133,"context_line":"documentation \u003chttp://docs.openstack.org/developer/swift/overview_architecture.html\u003e`_"},{"line_number":134,"context_line":""},{"line_number":135,"context_line":"When designing your cluster, you must consider durability and"},{"line_number":136,"context_line":"availability which is dependent on the spread and placement of your data,"},{"line_number":137,"context_line":"rather than the reliability of the"},{"line_number":138,"context_line":"hardware. Consider the default value of the number of replicas, which is"},{"line_number":139,"context_line":"three. This means that before an object is marked as having been"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_9831b30e","line":136,"in_reply_to":"1aa78d24_092b5895","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":142,"context_line":"initially returns. Altering this number increases the robustness of your"},{"line_number":143,"context_line":"data, but reduces the amount of storage you have available. Look"},{"line_number":144,"context_line":"at the placement of your servers. Consider spreading them widely"},{"line_number":145,"context_line":"throughout your data center\u0027s network and power-failure zones. Is a zone"},{"line_number":146,"context_line":"a rack, a server, or a disk?"},{"line_number":147,"context_line":""},{"line_number":148,"context_line":"Consider these main traffic flows for an Object Storage network:"},{"line_number":149,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_989faf02","line":146,"range":{"start_line":145,"start_character":62,"end_line":146,"end_character":28},"updated":"2016-08-04 10:59:01.000000000","message":"I would avoid having questions inline.","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":142,"context_line":"initially returns. Altering this number increases the robustness of your"},{"line_number":143,"context_line":"data, but reduces the amount of storage you have available. Look"},{"line_number":144,"context_line":"at the placement of your servers. Consider spreading them widely"},{"line_number":145,"context_line":"throughout your data center\u0027s network and power-failure zones. Is a zone"},{"line_number":146,"context_line":"a rack, a server, or a disk?"},{"line_number":147,"context_line":""},{"line_number":148,"context_line":"Consider these main traffic flows for an Object Storage network:"},{"line_number":149,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_9b740d9d","line":146,"range":{"start_line":145,"start_character":62,"end_line":146,"end_character":28},"in_reply_to":"bacf61ea_989faf02","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":22314,"name":"Ryan Selden","email":"seldenr@icloud.com","username":"seldenr"},"change_message_id":"87f32578d48b359744f78593640cbcf79c32d022","unresolved":false,"context_lines":[{"line_number":152,"context_line":"* Between servers and the proxies"},{"line_number":153,"context_line":"* Between the proxies and your users"},{"line_number":154,"context_line":""},{"line_number":155,"context_line":"Object Storage frequent communicates among servers hosting data. Even a small"},{"line_number":156,"context_line":"cluster generates megabytes/second of traffic, which is predominantly, “Do"},{"line_number":157,"context_line":"you have the object?” and “Yes I have the object!” If the answer"},{"line_number":158,"context_line":"to the question is negative or the request times out,"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_fd8516cf","line":155,"range":{"start_line":155,"start_character":15,"end_line":155,"end_character":23},"updated":"2016-08-03 21:23:59.000000000","message":"frequently?","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":22314,"name":"Ryan Selden","email":"seldenr@icloud.com","username":"seldenr"},"change_message_id":"87f32578d48b359744f78593640cbcf79c32d022","unresolved":false,"context_lines":[{"line_number":152,"context_line":"* Between servers and the proxies"},{"line_number":153,"context_line":"* Between the proxies and your users"},{"line_number":154,"context_line":""},{"line_number":155,"context_line":"Object Storage frequent communicates among servers hosting data. Even a small"},{"line_number":156,"context_line":"cluster generates megabytes/second of traffic, which is predominantly, “Do"},{"line_number":157,"context_line":"you have the object?” and “Yes I have the object!” If the answer"},{"line_number":158,"context_line":"to the question is negative or the request times out,"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_7de00697","line":155,"range":{"start_line":155,"start_character":0,"end_line":155,"end_character":14},"updated":"2016-08-03 21:23:59.000000000","message":"what is actually communicating? What part of the software is doing the communicating? Is it all of the servers communicating with one another?","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":152,"context_line":"* Between servers and the proxies"},{"line_number":153,"context_line":"* Between the proxies and your users"},{"line_number":154,"context_line":""},{"line_number":155,"context_line":"Object Storage frequent communicates among servers hosting data. Even a small"},{"line_number":156,"context_line":"cluster generates megabytes/second of traffic, which is predominantly, “Do"},{"line_number":157,"context_line":"you have the object?” and “Yes I have the object!” If the answer"},{"line_number":158,"context_line":"to the question is negative or the request times out,"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_bb73d1b0","line":155,"range":{"start_line":155,"start_character":15,"end_line":155,"end_character":23},"in_reply_to":"bacf61ea_fd8516cf","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":153,"context_line":"* Between the proxies and your users"},{"line_number":154,"context_line":""},{"line_number":155,"context_line":"Object Storage frequent communicates among servers hosting data. Even a small"},{"line_number":156,"context_line":"cluster generates megabytes/second of traffic, which is predominantly, “Do"},{"line_number":157,"context_line":"you have the object?” and “Yes I have the object!” If the answer"},{"line_number":158,"context_line":"to the question is negative or the request times out,"},{"line_number":159,"context_line":"replication of the object begins."},{"line_number":160,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_f88eabce","line":157,"range":{"start_line":156,"start_character":71,"end_line":157,"end_character":50},"updated":"2016-08-04 10:59:01.000000000","message":"yikes - remove","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":153,"context_line":"* Between the proxies and your users"},{"line_number":154,"context_line":""},{"line_number":155,"context_line":"Object Storage frequent communicates among servers hosting data. Even a small"},{"line_number":156,"context_line":"cluster generates megabytes/second of traffic, which is predominantly, “Do"},{"line_number":157,"context_line":"you have the object?” and “Yes I have the object!” If the answer"},{"line_number":158,"context_line":"to the question is negative or the request times out,"},{"line_number":159,"context_line":"replication of the object begins."},{"line_number":160,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_5b91f598","line":157,"range":{"start_line":156,"start_character":71,"end_line":157,"end_character":50},"in_reply_to":"bacf61ea_f88eabce","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":159,"context_line":"replication of the object begins."},{"line_number":160,"context_line":""},{"line_number":161,"context_line":"Consider the scenario where an entire server fails and 24 TB of data"},{"line_number":162,"context_line":"needs to be transferred \"immediately\" to remain at three copies — this can"},{"line_number":163,"context_line":"put significant load on the network."},{"line_number":164,"context_line":""},{"line_number":165,"context_line":"Another consideration is when a new file is being uploaded, the proxy server"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_78b91b79","line":162,"range":{"start_line":162,"start_character":24,"end_line":162,"end_character":38},"updated":"2016-08-04 10:59:01.000000000","message":"remove scare quotes","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":159,"context_line":"replication of the object begins."},{"line_number":160,"context_line":""},{"line_number":161,"context_line":"Consider the scenario where an entire server fails and 24 TB of data"},{"line_number":162,"context_line":"needs to be transferred \"immediately\" to remain at three copies — this can"},{"line_number":163,"context_line":"put significant load on the network."},{"line_number":164,"context_line":""},{"line_number":165,"context_line":"Another consideration is when a new file is being uploaded, the proxy server"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_fb9389a1","line":162,"range":{"start_line":162,"start_character":24,"end_line":162,"end_character":38},"in_reply_to":"bacf61ea_78b91b79","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":22314,"name":"Ryan Selden","email":"seldenr@icloud.com","username":"seldenr"},"change_message_id":"87f32578d48b359744f78593640cbcf79c32d022","unresolved":false,"context_lines":[{"line_number":165,"context_line":"Another consideration is when a new file is being uploaded, the proxy server"},{"line_number":166,"context_line":"must write out as many streams as there are replicas, multiplying network"},{"line_number":167,"context_line":"traffic. For a three-replica cluster, 10 Gbps in means 30 Gbps out. Combining"},{"line_number":168,"context_line":"this with the previous high bandwidth bandwidth private versus public network"},{"line_number":169,"context_line":"recommendations demands of replication is what results in the recommendation"},{"line_number":170,"context_line":"that your private network be of significantly higher bandwidth than your public"},{"line_number":171,"context_line":"network requires. OpenStack Object Storage communicates internally with"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_3d84ceaf","line":168,"range":{"start_line":168,"start_character":28,"end_line":168,"end_character":55},"updated":"2016-08-03 21:23:59.000000000","message":"bandwidth x2","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":165,"context_line":"Another consideration is when a new file is being uploaded, the proxy server"},{"line_number":166,"context_line":"must write out as many streams as there are replicas, multiplying network"},{"line_number":167,"context_line":"traffic. For a three-replica cluster, 10 Gbps in means 30 Gbps out. Combining"},{"line_number":168,"context_line":"this with the previous high bandwidth bandwidth private versus public network"},{"line_number":169,"context_line":"recommendations demands of replication is what results in the recommendation"},{"line_number":170,"context_line":"that your private network be of significantly higher bandwidth than your public"},{"line_number":171,"context_line":"network requires. OpenStack Object Storage communicates internally with"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_7bd5d941","line":168,"range":{"start_line":168,"start_character":28,"end_line":168,"end_character":55},"in_reply_to":"bacf61ea_3d84ceaf","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":22314,"name":"Ryan Selden","email":"seldenr@icloud.com","username":"seldenr"},"change_message_id":"87f32578d48b359744f78593640cbcf79c32d022","unresolved":false,"context_lines":[{"line_number":166,"context_line":"must write out as many streams as there are replicas, multiplying network"},{"line_number":167,"context_line":"traffic. For a three-replica cluster, 10 Gbps in means 30 Gbps out. Combining"},{"line_number":168,"context_line":"this with the previous high bandwidth bandwidth private versus public network"},{"line_number":169,"context_line":"recommendations demands of replication is what results in the recommendation"},{"line_number":170,"context_line":"that your private network be of significantly higher bandwidth than your public"},{"line_number":171,"context_line":"network requires. 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OpenStack Object Storage communicates internally with"},{"line_number":172,"context_line":"unencrypted, unauthenticated rsync for performance, so the private"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_5b5615d3","line":169,"range":{"start_line":169,"start_character":0,"end_line":169,"end_character":22},"in_reply_to":"bacf61ea_ddbbf273","updated":"2016-08-09 04:02:35.000000000","message":"Shaun, can you help elaborate?","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":22314,"name":"Ryan Selden","email":"seldenr@icloud.com","username":"seldenr"},"change_message_id":"87f32578d48b359744f78593640cbcf79c32d022","unresolved":false,"context_lines":[{"line_number":166,"context_line":"must write out as many streams as there are replicas, multiplying network"},{"line_number":167,"context_line":"traffic. For a three-replica cluster, 10 Gbps in means 30 Gbps out. 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OpenStack Object Storage communicates internally with"},{"line_number":172,"context_line":"unencrypted, unauthenticated rsync for performance, so the private"},{"line_number":173,"context_line":"network is required."},{"line_number":174,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_1db62a8a","line":171,"range":{"start_line":169,"start_character":40,"end_line":171,"end_character":16},"updated":"2016-08-03 21:23:59.000000000","message":"This is all a run on that is confusing to follow.","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":177,"context_line":"add more and use HTTP load-balancing methods to share bandwidth and"},{"line_number":178,"context_line":"availability between them."},{"line_number":179,"context_line":""},{"line_number":180,"context_line":"More proxies means more bandwidth, if your storage can keep up."},{"line_number":181,"context_line":""},{"line_number":182,"context_line":"Block Storage"},{"line_number":183,"context_line":"-------------"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_08fd2e3a","line":180,"range":{"start_line":180,"start_character":0,"end_line":180,"end_character":63},"updated":"2016-08-04 10:59:01.000000000","message":"I\u0027m not too sure what this adds?","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":177,"context_line":"add more and use HTTP load-balancing methods to share bandwidth and"},{"line_number":178,"context_line":"availability between them."},{"line_number":179,"context_line":""},{"line_number":180,"context_line":"More proxies means more bandwidth, if your storage can keep up."},{"line_number":181,"context_line":""},{"line_number":182,"context_line":"Block Storage"},{"line_number":183,"context_line":"-------------"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_3b6a4181","line":180,"range":{"start_line":180,"start_character":0,"end_line":180,"end_character":63},"in_reply_to":"bacf61ea_08fd2e3a","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":182,"context_line":"Block Storage"},{"line_number":183,"context_line":"-------------"},{"line_number":184,"context_line":""},{"line_number":185,"context_line":"Block storage (sometimes referred to as volume storage) provides users"},{"line_number":186,"context_line":"with access to block-storage devices. 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It then becomes"},{"line_number":29,"context_line":"possible to, for example, reboot a controller without affecting customers."},{"line_number":30,"context_line":"If one service failure affects the operation of an entire server (\u0027noisy"},{"line_number":31,"context_line":"neighbor’), the separation between Control and Data Planes enables rapid"},{"line_number":32,"context_line":"maintenance with a limited effect on customer operations."},{"line_number":33,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_1b7736a0","line":30,"range":{"start_line":30,"start_character":66,"end_line":30,"end_character":67},"updated":"2016-08-04 10:59:01.000000000","message":"this needs to be a back tick like the other one","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":27,"context_line":"Ongoing maintenance operations are made much simpler if there is logical and"},{"line_number":28,"context_line":"physical separation of Data Plane and Control Plane systems. 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This includes storage replication, which should be isolated"},{"line_number":114,"context_line":"to a dedicated network or VLAN with the ability to assign QoS to control the"},{"line_number":115,"context_line":"replication traffic or provide priority for this traffic. Note that if the data"},{"line_number":116,"context_line":"store is highly changeable, the network requirements could have a significant"},{"line_number":117,"context_line":"effect on the operational cost of maintaining the sites."},{"line_number":118,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_7bdd9241","line":115,"range":{"start_line":115,"start_character":58,"end_line":115,"end_character":62},"updated":"2016-08-04 10:59:01.000000000","message":"I would recommend putting this in a notation","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":112,"context_line":"Multiple network links should be deployed between sites to provide redundancy"},{"line_number":113,"context_line":"for all components. 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Note that if the data"},{"line_number":116,"context_line":"store is highly changeable, the network requirements could have a significant"},{"line_number":117,"context_line":"effect on the operational cost of maintaining the sites."},{"line_number":118,"context_line":""}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_5e1e0364","line":115,"range":{"start_line":115,"start_character":58,"end_line":115,"end_character":62},"in_reply_to":"bacf61ea_7bdd9241","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":121,"context_line":"design and implementation. It also has a significant impact on the WAN network"},{"line_number":122,"context_line":"design between the sites."},{"line_number":123,"context_line":""},{"line_number":124,"context_line":"If applications running in a cloud are not cloud-aware, there should be clear"},{"line_number":125,"context_line":"measures and expectations to define what the infrastructure can and cannot"},{"line_number":126,"context_line":"support. An example would be shared storage between sites. It is possible,"},{"line_number":127,"context_line":"however such a solution is not native to OpenStack and requires a third-party"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_bb954a41","line":124,"range":{"start_line":124,"start_character":43,"end_line":124,"end_character":54},"updated":"2016-08-04 10:59:01.000000000","message":"what does this mean?","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":121,"context_line":"design and implementation. It also has a significant impact on the WAN network"},{"line_number":122,"context_line":"design between the sites."},{"line_number":123,"context_line":""},{"line_number":124,"context_line":"If applications running in a cloud are not cloud-aware, there should be clear"},{"line_number":125,"context_line":"measures and expectations to define what the infrastructure can and cannot"},{"line_number":126,"context_line":"support. An example would be shared storage between sites. It is possible,"},{"line_number":127,"context_line":"however such a solution is not native to OpenStack and requires a third-party"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_3e186f1d","line":124,"range":{"start_line":124,"start_character":43,"end_line":124,"end_character":54},"in_reply_to":"bacf61ea_bb954a41","updated":"2016-08-09 04:02:35.000000000","message":"good question","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10607,"name":"Alexandra Settle","email":"a.settle@outlook.com","username":"asettle"},"change_message_id":"c40ea180d06a1b610afa119e932f95512b0f12ee","unresolved":false,"context_lines":[{"line_number":126,"context_line":"support. An example would be shared storage between sites. It is possible,"},{"line_number":127,"context_line":"however such a solution is not native to OpenStack and requires a third-party"},{"line_number":128,"context_line":"hardware vendor to fulfill such a requirement. Another example can be seen in"},{"line_number":129,"context_line":"applications that are able to consume resources in object storage directly."},{"line_number":130,"context_line":""},{"line_number":131,"context_line":"Connecting more than two sites increases the challenges and adds more"},{"line_number":132,"context_line":"complexity to the design considerations. Multi-site implementations require"}],"source_content_type":"text/x-rst","patch_set":6,"id":"bacf61ea_7b99126e","line":129,"range":{"start_line":129,"start_character":51,"end_line":129,"end_character":65},"updated":"2016-08-04 10:59:01.000000000","message":"Object Storage","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":10705,"name":"Darren Chan","email":"dazzachan@yahoo.com.au","username":"daz"},"change_message_id":"73f341a0f525bc5ca4436016569dae16deb4a955","unresolved":false,"context_lines":[{"line_number":126,"context_line":"support. An example would be shared storage between sites. It is possible,"},{"line_number":127,"context_line":"however such a solution is not native to OpenStack and requires a third-party"},{"line_number":128,"context_line":"hardware vendor to fulfill such a requirement. Another example can be seen in"},{"line_number":129,"context_line":"applications that are able to consume resources in object storage directly."},{"line_number":130,"context_line":""},{"line_number":131,"context_line":"Connecting more than two sites increases the challenges and adds more"},{"line_number":132,"context_line":"complexity to the design considerations. Multi-site implementations require"}],"source_content_type":"text/x-rst","patch_set":6,"id":"9ad45d7e_bee29f01","line":129,"range":{"start_line":129,"start_character":51,"end_line":129,"end_character":65},"in_reply_to":"bacf61ea_7b99126e","updated":"2016-08-09 04:02:35.000000000","message":"Done","commit_id":"91d03af809607047142e4db10a1df3ac35756569"},{"author":{"_account_id":14643,"name":"Olga Gusarenko","email":"ogusarenko@mirantis.com","username":"Olga"},"change_message_id":"9d93da95126277fe4ded6cef17d929ab6d6c2bb1","unresolved":false,"context_lines":[{"line_number":34,"context_line":""},{"line_number":35,"context_line":"Eliminating single points of failure"},{"line_number":36,"context_line":"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"},{"line_number":37,"context_line":""},{"line_number":38,"context_line":"Within each site"},{"line_number":39,"context_line":"----------------"},{"line_number":40,"context_line":""}],"source_content_type":"text/x-rst","patch_set":9,"id":"9ad45d7e_9214e7f5","line":37,"updated":"2016-08-09 08:16:03.000000000","message":"I would add an introductory sentence here before proceeding with 3-level titles.","commit_id":"1beb0e289fe12dc9c611dc3ff768fdb15949fd2f"}]}