问题
I have ArangoDB running locally with databases, collections, data and graphs from several different projects in it. I'd like to back up everything so I can rebuild my system. I know how to do a backup of a single database, but because I have a bunch I'm hoping to do this in one shot.
Essentially, I'm looking for the ArangoDB equivalent of
mysqldump -u root -p --all-databases > alldb.sql
Obviously the ArangoDB equivalent of
mysql -u root -p < alldb.sql
Would be good to know too.
回答1:
As of release 3.3, arangodump does not support dumping all databases at once. It is per database.
To make it dump all databases, it can be invoked in a loop over all databases, e.g.
# loop over all databases
for db in `arangosh --javascript.execute-string "db._databases().forEach(function(db) { print(db); });"` # host, user and password go here...
do
arangodump --sever.database "$db" # host, user and password go here...
done
This will work if there is one user that has access privileges for all databases.
回答2:
While the previous script is almost correct, it won't work with multiple database, since it will start complaining about the dump directory, and asks you to add --overwrite true to the command. This won't work as well, since it'll only output the latest database.
We use the following script, which is slightly changed from the one from stj's answer (or at least the following is part of the backup procedure) to get a dump of all the databases we have:
USER=...
PASSWORD=...
for db in $(arangosh --server.username "$USER" --server.password "$PASSWORD" --javascript.execute-string "db._databases().forEach(function(db) { print(db); });")
do
arangodump --output-directory ~/dump/"$db" --overwrite true --server.username "$USER" --server.password "$PASSWORD" --server.database "$db"
done
来源：https://stackoverflow.com/questions/50615754/how-to-dump-all-databases-with-arangodb