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| -rw-r--r-- | extra/sql_dumps/README.md | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/extra/sql_dumps/README.md b/extra/sql_dumps/README.md index ee2caa0d..001fc39e 100644 --- a/extra/sql_dumps/README.md +++ b/extra/sql_dumps/README.md @@ -33,10 +33,13 @@ In production: sudo -u postgres psql fatcat_prod < dump_file_hashes.sql | egrep -v ^BEGIN$ | egrep -v ^ROLLBACK$ | pv -l | pigz > /srv/fatcat/snapshots/file_hashes.tsv.gz sudo -u postgres psql fatcat_prod < dump_release_extid.sql | egrep -v ^BEGIN$ | egrep -v ^ROLLBACK$ | pv -l | pigz > /srv/fatcat/snapshots/release_extid.tsv.gz -## HOWTO: Full private database backup and restore +## HOWTO: Full ("private") database backup and restore export DATESLUG="`date +%Y-%m-%d.%H%M%S`" - time sudo -u postgres pg_dump --verbose --format=tar fatcat_prod | pigz > /srv/fatcat/snapshots/fatcat_private_dbdump_${DATESLUG}.tar.gz + time sudo -u postgres pg_dump --verbose --format=tar fatcat_prod | pigz > /srv/fatcat/snapshots/fatcat_full_dbdump_${DATESLUG}.tar.gz + +In production (as of 2019-04-24, with a 283 GByte PostgreSQL database), this +takes 1h40m. NOTE: by using the "directory" export (along with `--file`) instead of "tar" export, it would be possible to use parallel dumping. However, this would put @@ -45,14 +48,14 @@ issues with users/permissions. To restore, CAREFULLY, run: - sudo -u postgres pg_restore --clean --if-exists --create --exit-on-error --jobs=16 DUMP_FILE.tar.gz - - zcat sudo -u postgres pg_restore --clean --if-exists --create --exit-on-error --jobs=16 DUMP_FILE.tar.gz + sudo -u postgres pg_restore --clean --if-exists --create --exit-on-error --jobs=16 DUMP_FILE.tar Or, in production: sudo su postgres - time zcat fatcat_private_dbdump_2020-02-02.022209.tar.gz | pg_restore --exit-on-error --clean --if-exists --dbname fatcat_prod + time zcat fatcat_full_dbdump_2020-02-02.022209.tar.gz | pg_restore --exit-on-error --clean --if-exists --dbname fatcat_prod + +In QA (as of 2019-01-30 dump), this takes about 5h15m. To just inspect a dump: @@ -75,12 +78,12 @@ Can also run using the remote/SSH options above. The `./ia_item_exports_readme.md` and `sqldump` files should be included as a `README.md` when appropriate: - ia upload fatcat_bulk_exports_YYYY-MM-DD ia_item_exports_readme.md --remote-name=README.md - ia upload fatcat_sqldump_full_YYYY-MM-DD ia_item_sqldump_readme.md --remote-name=README.md + ia upload fatcat_bulk_exports_YYYY-MM-DD ia_exports_item_readme.md --remote-name=README.md + ia upload fatcat_sqldump_full_YYYY-MM-DD ia_sqldump_item_readme.md --remote-name=README.md Metadata should be set as: -- item name: `fatcat_bulk_exports_YYYY-MM-DD` or `fatcat_sqldump_public_YYYY-MM-DD` (or sometimes `sqldump_full`) +- item name: `fatcat_bulk_exports_YYYY-MM-DD` or `fatcat_sqldump_public_YYYY-MM-DD` (or sometimes `fatcat_sqldump_full`) - collection: `ia_biblio_metadata` - creator: `Internet Archive Web Group` - date: that the dump started (UTC) |