CypherResilience

Compaction

# stop cron from running jobs while compacting
crontab -r
ps -fU admin
# check to see if any Python or .sh is running, wait till it completes
# generate the parquets
export PYTHONPATH=/home/admin/projects/cypherpunk/cypherpunk_reddit/
python /home/admin/projects/cypherpunk/cypherpunk_reddit/step_02_parquet_link_list.py
# backup the archive_link_list
cd /opt/cypherpunk/data/reddit/json
cp -r archive_link_list bak.archive_link_list
# add the new link_list contents
rsync -av link_list/ archive_link_list/
# verify that the new size matches the sum of the old archive and the new link_list
du --max-depth 1
# remove the live link_list jsons
find link_list -type f | xargs rm
# move the existing compacted dir
cd /opt/cypherpunk/data/reddit/parquet/
mv compacted_raw old.compacted_raw
# move the new parquets to the compacted dir
mv raw compacted_raw

crontab /home/admin/projects/cypherpunk/cypherpunk_reddit/crontab.l

Data Redundancy

Data Classification

Catalog	Format	Dataset	Classification	Notes
Harvest	JSON	link_list	create, delete
Harvest	JSON	archive_link_list	create	revise sync calls - do not use delete switch
Harvest	JSON	discussion	create, (delete - only affects 2 most recent months)	Restructure the storage, move date to year=2023/month=09
Pipeline	Parquet	raw/link_list	create, delete (2x daily)
Pipeline	Parquet	dedupe/link_list	create, delete (2x daily)
Pipeline	Parquet	compacted_raw/link_list	create, delete (~weekly)

Sync

Pull Discussions

This has to be done separately because the remote harvester host will not have the full discussion archive. Remote will have the current and previous month, which can be pulled with --delete.

cd /opt/cypherpunk/data/reddit/json
find discussion -name '2023-09' -type d | awk '{print "rsync -avz --size-only --delete www.iterativechaos.com:/opt/cypherpunk/data/reddit/json/"$1"/ ./"$1"/"}'

Pull All Other JSON

rsync -avz --size-only --delete www.iterativechaos.com:/opt/cypherpunk/data/reddit/json/link_list/ /opt/cypherpunk/data/reddit/json/link_list/
rsync -avz --size-only www.iterativechaos.com:/opt/cypherpunk/data/reddit/json/archive_link_list/ /opt/cypherpunk/data/reddit/json/archive_link_list/

S3 Backup

JSON, Daily

time aws s3 sync --size-only --delete /opt/cypherpunk/data/reddit/json/ s3://iterative-chaos/cyphernews/harvest/reddit/json/

Parquet Compacted, Weekly

time aws s3 sync --size-only --delete /opt/cypherpunk/data/reddit/parquet/compacted_raw/ s3://iterative-chaos/cyphernews/harvest/reddit/parquet/compacted_raw/