HEROKU: What to do with my dump file (PGBACKUPS) - postgresql

I'm done with the pgbackups process.
First, I installed the pgbackups addon (HEROKU)
via command: heroku addons:add pgbackups
Second, I login using heroku auth:login command
Third, I capture the backup by running the command: heroku pgbackups:capture --app myapp
Fourth, I get the url of the backup by
heroku pgbackups:url b002
So I accessed the url that I saw after running the command: heroku pgbackups: url b002
in this format: https://s3.amazonaws.com/hkpgbackups/app2955630#heroku.com/b002.dump?AWSAccessKeyId=.......
something like that.
After that, I downloaded the file in .dump format
So now, I have the dump file and dont know what to do where to specifically use it...
Can somebody give me an advise to how to use the .dump file?
Please help me. I'm in trouble right now. I've to get a copy of our existing database from heroku.

Your .dump file should be a pg_dump file so you'd need to set up PostgreSQL somewhere and then use pg_restore to load the .dump file into your local database.

Related

Heroku postgres populate file permission denied

I Get this error message when I try to give my postgres heroku backend an sql file to init the database.
I've tried to change permissions of the file and give it all read and write. I don't know what the problem is.
I suspect it's postgres/sql related but I don't know what to do.
simao#simao-kde-neon:~/Desktop/t1g1$ heroku pg:psql postgresql-colorful-03183 -a differ-backend < init.sql
--> Connecting to postgresql-colorful-03183
could not read from input file: Permission denied
▸ psql exited with code 1
I believe that the Heroku pg utilities use your own local installation of postgres under the hood. Looking at that error, it seems like whichever user runs psql locally doesn't have permissions for init.sql. Try chmod on the sql file to make sure that the correct user has permission to read the file.

Database transfer from Heroku to Digital Ocean

I'm currently in the process of switching my cloud server from Heroku to Digital Ocean. However is there a way to migrate the database from the heroku server to the digital ocean one? I use postgresql for my database
I hope you already got a solution, but in case you didn’t, I’ll provide a simple guide on how I did it. I am going to assume that you have already created a postgres database on digitalocean. Also you need navigate to your project directory and log in to heroku using the heroku cli. And, you need to have postgresql installed or a psql client. Installing postgresql would do it as it comes with psql.
Step 1: Create a backup and download the backup from heroku postgres
heroku pg:backups:capture --app <app_name>
heroku pg:backups:download --app <app_name>
The first command will create a backup of your database and the second command will download it to your current directory, its a .dump file. If you would like to read more, here is an article.
Step 2: Connect to your remote (digital ocean’s) database using psql
Before you can do this, you need to go and add your machine you are connecting from to the list of database’s list of trusted sources, If you don’t, you’ll get a Connection Timed Out error. That’s because the database’s firewall doesn’t allow you to connect to the database from your local machine or resource (for security reasons).
Step 3: Import the Database
pg_restore -d "postgresql://<database_username>:<database_password>#<host>:<port>/<database>?sslmode=require" --jobs 4 -c "/path/to/dump_file.dump"
This will import your database from your dump file. Just substitute the variables will your connection parameters that you get from your dashboard. If you would like to read more, here is another article for this step.
Another thing to make clear is, sometimes, you will see some harmless error messages when running this command, but it will push through anyway. To learn more about pg_restore read this article.
And that’s it, your database has been migrated. Now, can you confirm it worked?, well, as for me, I used pgAdmin to connect to the remote database and I saw the tables and data as expected.
Hope this helps anyone with the same problem :)

Heroku pg:restore failing to find dump file?

I am having troubles restoring my backups to the heroku database via an external dump file. I run this command:
heroku pg:backups:restore 'https://s3.us-east-2.amazonaws.com/some-bucket/some-dump.dump' DATABASE_URL
And I get this error in return:
Backup 'https://s3.us-east-2.amazonaws.com/some-bucket/some-dump.dump' not found for some-heroku-app
I can access the file from the browser, but it seems that pg:backups can't access the file. I've also tried different methods of hosting the file (including a private FTP server and Dropbox).I've searched for other people with the same problems, but none of the questions seemed to be answered

Heroku database restore issue

Have gone through different solutions available on stackoverflowand also on different forums. But none addresses the precise problem.
As per the documentation: https://devcenter.heroku.com/articles/heroku-postgres-import-export
I have the dump file created from my local database, with this command:
pg_dump -Fc --no-acl --no-owner -h localhost -U postgres dss_iaya>dss_iaya_db_dump1.dump
Then as per documentation, uploaded to a server with public access URL: https://firebasestorage.googleapis.com/v0/b/iaya-664f3.appspot.com/o/dss_iaya_db_dump1.dump?alt=media&token=06167d04-1e98-4e4b-b0e0-9d83a86dd167
Now when I try to restore on Heroku as per its documentation syntax heroku pg:backups:restore [BACKUP] [DATABASE] --app APP using following command, it returns error message when restoring.
heroku pg:backups:restore --app heroku-postgres-*** 'https://firebasestorage.***/dss_iaya_db_dump1.dump?alt=media&token=***' 'postgres://quesu***:I***#ec2-54-***.eu-west-1.compute.amazonaws.com:5432/d3n***k0'
I have used *** for security purpose only, as can not mention full credentials. But I believe one can understand the whole syntax.
When I restore same .dump file on a newly created local database it works without any issues and creates/restores the whole database with tables and data.
Just found the solution, actually two things were wrong in my case.
One, the uploaded .dump file was not well readable/usable by the heroku.
Two, the heroku postgresql DB complete URL was not required to be provided.
So, the right way that worked for me was that the uploaded file should be accessible without any token and also without any virtual/indirect path, etc. The URL to the file should point to the file directly. In my questioned problem, I was using firebase to host my DB file temporarily to do the heroku operation. And firebase was not giving direct URL to the uploaded physical file.
heroku pg:backups:restore --app heroku-postgres-f3*** 'https://www.h***.com/dss_iaya_db_dump2.dump' DATABASE_URL
After typing this command, I was asked to retype the heroku app name just to confirm the operation. Once done, everything worked like a charm.
In logs you see dump size: 0 Bytes. Also you see aborting and 403,
so if you check your file: https://llfirebasestorage.googleapis.com/vo/b/iaya-664f3.appspot.com/0/dss_iaya_db_dump1.dump?a1t=media
you get:
404. That’s an error.
The requested URL /vo/b/iaya-664f3.appspot.com/0/dss_iaya_db_dump1.dump was not found on
this server. That’s all we know.

Heroku pg:pull is giving sh: createdb: command not found

When I try to do heroku pg:pull DATABASE_URL myappspassword, I get this error:
my-computer:a-folder (master*) · heroku pg:pull DATABASE_URL myappspassword
! sh: createdb: command not found
!
! Unable to create new local database. Ensure your local Postgres is working and try again.
For once Googling doesn't return a result. I'm wondering if it's related to the fact that when I do which psql, there is no result. Maybe I need to do something special with pgAdmin to get this working (e.g. export command line tools)?
Are you on a Mac, by chance, and using Postgres App?
If so, the problem might be that createdb isn't on your path. Try adding it by inserting the following into ~/.bash_profile.
export PATH=$PATH:/Applications/Postgres.app/Contents/Versions/9.4/bin
Then run source ~/.bash_profile and try again.
There's more info on the Postgres App site: http://postgresapp.com/documentation/cli-tools.html
Your instincts are correct. You need to be able to access the Postgres from your command line. pg:pull is attempting to create a new local database and drop the relevant data from your Heroku database into it. From the docs:
This command will create a new local database named “mylocaldb” and then pull data from database at DATABASE_URL...
Basically, your local machine is trying to run createdb locally but your terminal isn't recognizing it.
I battled this damn error for a few hours. I can't say for certain if this will work for everyone but I found my issue stemmed from running the command via iTerm/ZSH instead of just normal bash. I opened up plain-old vanilla terminal, ran the command, and everything fired off like it should.