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chromatin | Has anyone deployed Seagate Kinetic drives in production with Swift ? | 01:22 |
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vills | Hi guys! Maybe someone know existed solution or have some thoughts of implementing so. What i want is to move old objects (like older than 7 days) to another container. And i want it work on servers side, not on client. Any ideas? | 04:36 |
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acoles | tdasilva: jrichli timburke I added my notes from symlinks discussion here https://etherpad.openstack.org/p/swift_symlinks | 11:10 |
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acoles | timburke: I didn't take any notes about object versioning w/ symlinks so that section is blank :) all I remembered was that symlinks had to be left of encryption :) | 11:17 |
* acoles afk til weds | 11:18 | |
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kota_ | acoles: nice! thanks! | 12:04 |
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openstackgerrit | OpenStack Proposal Bot proposed openstack/swift: Updated from global requirements https://review.openstack.org/88736 | 16:53 |
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openstackgerrit | Nandini Tata proposed openstack/swift: swift-ring-builder output corrected for ipv6 https://review.openstack.org/319387 | 17:25 |
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chromatin | Does the use of erasure coding obviate the need to split large files , if splitting is done for parallel read reasons? | 17:49 |
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timburke | clayg: so you might be right that a py3 migration might just take a weekend (or week) and a bottle of whiskey. waiting for my plane, i at least got the proxy-server to start and respond to /info -- it wasn't as bad i i feared https://github.com/openstack/swift/compare/master...tipabu:py3-proxy | 18:24 |
timburke | still can't get it to talk to the backend servers, and at least one header was coming out with b'...' around it, but it's a start | 18:26 |
notmyname | chromatin: no. erasure coding (EC) is related to how durability is done. large files (ie SLO and DLO) are from the end-user perspective. they're different things | 18:28 |
notmyname | chromatin: were you asking about using swift for genomics the other day? | 18:28 |
chromatin | notmyname: Yes, that was me, and I am not sure I agree with your first answer. THat is to say, I understand EC is for durability, and I understand multipart uploads are performed on client end. I am asking about the functional consequences of each achieving a common goal | 18:29 |
notmyname | right | 18:29 |
notmyname | chromatin: oh, if you're interested in genomics stuff with swift, you might be interested in https://www.swiftstack.com/resources | 18:30 |
chromatin | Thanks for the link! | 18:30 |
notmyname | chromatin: so if an object is stored with EC, that doesn't affect the client-perspective size of the object | 18:30 |
notmyname | chromatin: if you store a 1GB BAM file, the client will see 1GB, regardless of how is stored--EC or replicas | 18:31 |
notmyname | just internally, the data will be split up differently with replication and EC | 18:31 |
notmyname | s/split up/persisted/ | 18:32 |
chromatin | notmyname: Agree, and perhaps this is covered in the book, but genomics use case is less focused on many-clients parallel reading smaller objects, but few users reading large files. Even 200 MB/sec (single disk throughput) is unacceptable. I see both EC as well as splitting large files on the client end as both achieving the goal of increasing read throughput to a single client for a large object | 18:32 |
chromatin | (but that is my naive, uninformed view, so welcome criticism) | 18:35 |
notmyname | yeah, that makes sense. I'm thinking about it | 18:36 |
notmyname | I think my answer is "maybe" ;-) | 18:37 |
chromatin | =) I will do some reading on my end | 18:37 |
notmyname | but you can tell from that answer that the overall throughput for a single stream isn't the primary design goal of EC | 18:37 |
notmyname | what's your use case? how are you looking to use swift (or using it today)? | 18:39 |
chromatin | Am not using yet (currently using a couple of NAS without a distributed file system). Recognized that most of our data is rarely accessed / archive and I think object storage makes sense as our growth is still high (maybe not exponential). Right now very small, ~50 TB, but expect to increase by at least that much yearly | 18:40 |
notmyname | chromatin: very cool :-) | 18:41 |
notmyname | chromatin: definitely check out that genomics book from the link. it covers a lot of workflows and how swift can fit in | 18:42 |
chromatin | Will definitely do, thanks again | 18:42 |
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jrichli | acoles: excellent symlink write-up. thank you! | 19:38 |
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openstackgerrit | Christian Schwede proposed openstack/swift: Add support to increase object ring partition power https://review.openstack.org/337297 | 20:12 |
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manous | hi | 21:42 |
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