lrzip | LeoFS | |
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6 | 2 | |
595 | 1,536 | |
- | 0.0% | |
3.7 | 0.0 | |
23 days ago | almost 4 years ago | |
C | Erlang | |
GNU General Public License v3.0 only | Apache License 2.0 |
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lrzip
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How to Get Your Backup to Half of Its Size – ZSTD Support in XtraBackup
lrzip
Long Range ZIP or LZMA RZIP
https://github.com/ckolivas/lrzip
"A compression utility that excels at compressing large files (usually > 10-50 MB). Larger files and/or more free RAM means that the utility will be able to more effectively compress your files (ie: faster / smaller size), especially if the filesize(s) exceed 100 MB. You can either choose to optimise for speed (fast compression / decompression) or size, but not both."
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File compression
7zip and XZ are almost always the best in any comparison. (They use the same algorithm.) Occasionally something new comes allong that may be bettyer, but it fades away... Like lrzip. https://lkml.org/lkml/2011/6/4/23 https://github.com/ckolivas/lrzip
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If we found a way to reverse a hashing function, would that make them ultra-compression algorithms?
For example lrzip has an intense "dupe hunting" mode and takes days for large content, but does compress very well once it's done (and expansion is fast). I use it on long term storage backups and disk images and junk. Completely incompatible with streaming, unlike chunk-based like gzip or deflate or etc, although unpacking can stream such as searching or verifying a tarfile archive. But the original source has to be file-based so seeking for the hunting can work across the entire file-as-a-block.
- Lrzip – Long Range Zip or LZMA RZIP
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Ask HN: How would you store 10PB of data for your startup today?
Best I know of for that is something like lrzip still, but even then it's probably not state of the art. https://github.com/ckolivas/lrzip
It'll also take a hell of a long time to do the compression and decompression. It'd probably be better to do some kind of chunking and deduplication instead of compression itself simply because I don't think you're ever going to have enough ram to store any kind of dictionary that would effectively handle so much data. You'd also not want to have to re-read and reconstruct that dictionary to get at some random image too.
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Encrypted Backup Shootout
There's also lrzip for large files: https://github.com/ckolivas/lrzip
LeoFS
- Leofs – S3 / NFS object store
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Ask HN: How would you store 10PB of data for your startup today?
I think if I _had_ to decide (I'm not the best informed person on the matter) I'd lean towards leofs[1].
I only read about it, but never used it.
It advertises itself as exabyte scalable and provides s3 and nfs access.
[1] https://leo-project.net/leofs/
What are some alternatives?
bupstash - Easy and efficient encrypted backups.
Ceph - Ceph is a distributed object, block, and file storage platform
rdedup - Data deduplication engine, supporting optional compression and public key encryption.
Seaweed File System - SeaweedFS is a fast distributed storage system for blobs, objects, files, and data lake, for billions of files! Blob store has O(1) disk seek, cloud tiering. Filer supports Cloud Drive, cross-DC active-active replication, Kubernetes, POSIX FUSE mount, S3 API, S3 Gateway, Hadoop, WebDAV, encryption, Erasure Coding. [Moved to: https://github.com/seaweedfs/seaweedfs]
duplicity - mirror of duplicity: https://code.launchpad.net/duplicity
GlusterFS - Web Content for gluster.org -- Deprecated as of September 2017
BorgBackup - Deduplicating archiver with compression and authenticated encryption.
lizardfs - LizardFS is an Open Source Distributed File System licensed under GPLv3.
ParlAI - A framework for training and evaluating AI models on a variety of openly available dialogue datasets.
MooseFS - MooseFS – Open Source, Petabyte, Fault-Tolerant, Highly Performing, Scalable Network Distributed File System (Software-Defined Storage)
nfreezer - nFreezer is an encrypted-at-rest backup tool.
Apache Hadoop - Apache Hadoop