GitHub - The-Wallfacer-Plan/CE7490_2: Assignment2 for CE7490: Special Advanced Topic - Distributed Systems in NTU, Singapore

Name		Name	Last commit message	Last commit date
Latest commit History 53 Commits
report		report
.gitignore		.gitignore
README.md		README.md
bv_gf.py		bv_gf.py
config.py		config.py
driver.py		driver.py
gf.py		gf.py
log.yaml		log.yaml
log_helper.py		log_helper.py
raid.py		raid.py
raid4.py		raid4.py
raid5.py		raid5.py
raid6.py		raid6.py
utils.py		utils.py

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Dependencies

Python-2.7
NumPy-1.10 pip install numpy
BitVector-3.3.2 (Optional) pip install BitVector

Module Descriptions

bv_gf.py -- an unoptimized general implementation using BitVector module
config.py -- simple configurations
driver.py -- main entry; used to setup RAID system and do experiments
gf.py -- a tuned implementation
log_helper.py -- logging utilities (with log.yaml)
raid.py -- abstract RAID class containing several common APIs
raid4.py -- RAID4 implementation
raid5.py -- RAID5 implementation
raid6.py -- RAID6 implementation
utils.py -- common utilities

Features:

basic operations:
- read --> check
- write
- recover <=2 disks
- detect 1 corrupted disk
find which disk is corrupted
recover 2-disk case
mutable files
RAID4 and RAID5
concurrent actual read/write
optimized and raw gf8 multiplication
data types can be:
- text-only
- arbitrary bytes

TODO:

unittest
deal with socket

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Assignment2 for CE7490: Special Advanced Topic - Distributed Systems in NTU, Singapore

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