I had created a MySQL DB instance on RDS, following are the details:
Instance class - db.t2.micro
Engine version - 8.0.17
It is present in us-east-1 region.
Now I have to move my MySQL DB to Amazon Aurora, following were the documentation guides which i followed:
1- https://docs.amazonaws.cn/en_us/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Migrating.RDSMySQL.Replica.html
On following the above guide i am only able to create a read replica. The option for creating a aurora replica is not visible. Also, when i create read replica it is created for mysql db and not gives me option to create for any other engine type.
2- https://docs.amazonaws.cn/en_us/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Migrating.RDSMySQL.Import.html
On following the above guide, i am able to create snapshot for my mysql db instance. But, the option to 'Migrate Snapshot' is disabled. Could anyone please help me with this.
Could anyone also suggest me any other way in which i can migrate my MySQL db on RDS to Amazon Aurora?
Aurora MySQL is only supported for MySQL 5.6 and 5.7 unfortunately so the read replica solution would not work.
However, Amazon have you covered with the Database Migration Service.
AWS published a blog post on this, so take a read.
Related
im running mysql 5.7 in my AWS RDS. I wanted to migrate the DB to my GCP without downtime.
How this can be done? Can i create a replica to GCP and use it as Master DB in GCP environement
yes, you could create a replicate to external mysql, you could find guideline as below link.
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/MySQL.Procedural.Importing.External.Repl.html
After you switch to gcp, you could still set the replicate the reverse way to aws rds mysql.
Also you could find more detailed steps in below aurora doc link. it contains the configuration for aurora, rds mysql, mysql.
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Replication.MySQL.html
I have an instance in RDS that is using mysql as the database engine. When I try to migrate that instance to a new one, it is only giving me options for Aurora and MariaDB. A few weeks ago I did the same thing to make a test version of the production database instance, and mysql was an option then. Any ideas on how I can make a copy of a mysql instance?
We have an mysql 5.5 installed and running on an AWS ec2 instance (r3.4xlarge type). We want to migrate to RDS/Aurora
1- RDS/Aurora can support mysql 5.6 and above. Should we first upgrade our database then move it to RDS/Aurora? Or can we do that using mysqldump directly?
Aurora has the ability to import from a 5.5 backup created with Percona XtraBackup. Dump the 5.5 database, put the backup in S3, and create aurora from that backup.
You may be able to set up replication from your ec2 instance to RDS MySQL or Aurora, as long as you're not using MyISAM tables.
Finally, you can use the AWS Database Migration tool to migrate from MySQL to Aurora.
There are two options, one is use database migration services to migrate the database from MySQL 5.5 to Aurora DB, it is recommended migration tool by Amazon, using this method you can be migrated without any outage.
Second is take backup and directly import in Aurora, it will be fast if both instances are in same region else move back up to s3 and restore it.
This is something i need to figure out, my company runs a number of prod RDS on AWS. Some of the mysql RDS run with 5.7 , i need to downgrade the mysql to 5.6 or 5.5 . Is this functionality provided by AWS.
Scenario: A mysql server already up and running with mysql version 5.7, Downgrade this to 5.6
-> If this is possible then what are the possible ways ?
-> How to do this ?
This is not something that AWS provides out of the box, however it can be solved with below 2 approaches depending on your database size and downtime that you can accept.
It might worth considering fixing application compatibility instead of downgrading DB which is more risky operation.
1. Dump, restore and switch method
Dump your currently running database with mysqldump utility. Start a new RDS instance with downgraded engine, load your dumped data into it. Switch your application to use RDS instance with downgraded engine.
2. Dump, restore, replicate & switch method
Dump your currently running database with mysqldump utility. Start a new RDS instance with downgraded MySQL engine, load your dumped data into it.
Set the new, downgraded DB instance as read replica of your old DB instance using mysql.rds_set_external_master and then start replication using mysql.rds_start_replication. Stop writes to your original DB, once the read replica catches up (you must monitor replication lag), run mysql.rds_reset_external_master which will promote your downgraded instance and turn off replication. Point your application to the downgraded RDS DB instance.
Method 2 will shorten your downtime to minimum, but is a bit more complex to execute. Here is a command reference to get familiar with to help you succeed: MySQL on Amazon RDS SQL Reference
You will find a great amount of examples in RDS documentation also - Importing and Exporting Data From a MySQL DB Instance:
We are migrating our MySql instance from version 5.5 in US to 5.6 in Sydney.
To reduce downtime I want to do following:
Create Readonly Replica in US
Upgrade it to 5.6
Enable automated Backup as it's required to replicate the instance
PROBLEM: When I'm trying to create a replica of a replica(selecting Sydney as destination region) I get this: "The source DB instance specified needs to be non read replica"
If I understand this http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ReadRepl.html correctly it should be perfectly fine for me to create a replica of a replica, however I'm running out of ideas why it doesn't let me... Should I make it non-readonly?
UPDATE: It looks like you can create a Replica(5.6) of a Read Replica(5.6) in the same region, however I still have no luck creating a readReplica from a readReplica in another region.
I think you are missing the step of Promoting the Read Replica to fully functional stand-alone RDS instance.
Once you are through this step, you can then enable the Backups and Snapshots.
Excerpt From AWS Blog
Upgrade Support
Today we are enhancing Amazon RDS with the ability to upgrade your
MySQL DB Instances from version 5.5 to the latest release in the 5.6
series that's available on RDS.
To upgrade your existing instances, create a new Read Replica, upgrade it to MySQL 5.6, and once it has caught up to your existing
master, promote it to be the new master. You can initiate and
monitor each of these steps from the AWS Management Console. Refer to
the Upgrading from MySQL 5.5 to MySQL 5.6 section of the Amazon RDS
User Guide to learn more.
References : MySQL 5.5 to MySQL 5.6 Upgrade Support for Amazon RDS