how to tar.gz?

[hex7c0]

hi, have you seen https://github.com/hex7c0/mongodb-backup/blob/1.6/examples/tar.js ?

[Tundon]

So this may only be my case, but the result is a .tar file that's almost 3x as the original dump folder (small database)...

No option to add gzip?

I tried tar -czf xxx.tar.gz xxx on non-tar dump folder, which would create a compressed file that's only 1/7 (dump folder 7mb, tar.gz 1mb).

I guess the reason that tar is bigger than dump folder because the database isn't that big yet, so the overhead of tar takes a big chunk. I don't have a larger database to test yet.

[mledwards]

I'm finding the tar file 3 times as big in all cases (0 records and 200k records).

[Ineptsmeagol]

I have the same question I found that the tar files are large. Adding the option to gzip would be great

[otanim]

Here is the workaround for you.

How to make .tar.gz backup:

const backup = require('mongodb-backup');
const {exec} = require('child_process');

const tarFileName = 'backup.tar';

backup({
  uri: 'mongodb://localhost:27017/test',
  root: __dirname,

  tar: tarFileName,

  callback: () => {
    exec(`cd ${__dirname} && gzip -9 ${tarFileName}`, () => {
      console.log('Backup file has been created');
    });
  }
});

How to restore .tar.gz backup:

const restore = require('mongodb-restore');
const {exec} = require('child_process');

const tarFileName = 'backup.tar';

exec(`
  cd ${__dirname}
  gzip -d ${tarFileName}.gz
`, () => {
  restore({
    uri: 'mongodb://localhost:27017/test',
    root: __dirname,

    tar: tarFileName,

    callback: () => {
      console.log('Restored');
    }
  });
});