Step-by-Step Parse Migration
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Step-by-Step Parse Migration
Learning Objectives● Understand Migration process● Try Migration with Test Application● Self Hosted DB with ClouldManager● Application Hosting in Elastic Beanstalk
https://www.mongodb.com/migrate-from-parse-to-mongodb-cloud-manager-and-aws
HostedDBapi.parse.com
Pre-migration
HostedDB
Pre-migration
Migration-Test
api.parse.com
HostedDB
Syncing Phase
Migration-Test
api.parse.com
SelfHosted
DB
HostedDB
Finalize
Migration-Test
api.parse.com
SelfHosted
DB
HostedDB
DB Migration Complete
Migration-Test
api.parse.com
SelfHosted
DB
HostedDBMigration-Test
api.parse.com
SelfHosted
DBMigration-TestElastic Beanstalk
Application Migration
HostedDBMigration-Test
api.parse.com
SelfHosted
DBMigration-TestElastic Beanstalk
Application Migration
HostedDBMigration-Test
api.parse.com
SelfHosted
DBMigration-TestElastic Beanstalk
Application Migration
HostedDBMigration-Test
api.parse.com
SelfHosted
DBmongo shell
HostedDB
Goal State
Migration-Test
api.parse.com
SelfHosted
DB
MongoDBCloud Manager
MongoDBCloud Manager
Set up & Maintenance
MongoDBCloud Manager
Set up & Maintenance
MongoDBCloud Manager
Set up & MaintenanceMonitoring & Alerting
MongoDBCloud Manager
Set up & MaintenanceMonitoring & Alerting
Back up & Restore
http://www.clipartbest.com/cliparts/LcK/4R7/LcK4R7Kca.svg
http://www.clipartbest.com/cliparts/LcK/4R7/LcK4R7Kca.svg
US-West-2
US-EastUS-West-1
http://www.clipartbest.com/cliparts/LcK/4R7/LcK4R7Kca.svg
US-West-2
US-EastUS-West-1
US - East
Availability Zone - b
Availability Zone - c
Availability Zone - d
Security Group
Security Group
CloudManager
api.parse.comCloudManager
api.parse.comSSH - command line
CloudManager
api.parse.comSSH - command line
CloudManager
SSHPort: 22Protocol: tcpIPs: 0.0.0.0
CloudManager Port: 22Protocol: tcpIPs: 4.35.16.128/25, 4.71.186.128/25
api.parse.com Port: 27000-28000Protocol: tcpIPs: 54.85.224.0/20
api.parse.comSSH - command line
CloudManager
TLS / SSL
Authentication and Authorization
Role Based Access Control
Authentication and Authorization
Role Based Access ControlPrinciple of Least Privilege
Authentication and Authorization
Demonstration: Allocate Replica Set
HostedDB
Application Migration
Migration-Test
api.parse.com
SelfHosted
DBMigration-TestElastic Beanstalk
HostedDB
Migration Completed
Migration-Test
api.parse.com
SelfHosted
DBMigration-TestElastic Beanstalk
Demonstration: Migrate Application
April 28, 2016
HostedDBMigration-Test
api.parse.com
SelfHosted
DB
July 28, 2016
HostedDBMigration-Test
api.parse.com
SelfHosted
DBMigration-TestElastic Beanstalk
HostedDB
Migration Completed
Migration-Test
api.parse.com
Migration-TestElastic Beanstalk
AWS EC2
Thanks!@blimpyacht
Questions for Parse
Bugs● Migration never successfully finalizes● On refresh, restarting migration no longer available● Oplog sync continues to self-hosted DB uneffected
HostedDBParse App Servers
loadBalancer
SelfHosted
DB
Lag ~30ms
DB Cutover Issue
HostedDBParse App Servers
loadBalancer
SelfHosted
DB
Lag ~30ms
Syncing Phase
HostedDBParse App Servers
loadBalancer
SelfHosted
DB
Lag ~30ms
Finalizing PhaseMust allow at least 30ms for the last write to replicate to self hosted database
Incoming request load doesn’t stop!!!!
HostedDBDEAD Server
loadBalancer
SelfHosted
DB
Lag ~30ms
Finalizing PhaseMust allow at least 30ms for the last write to replicate to self hosted database
Incoming request load doesn’t stop!!!!FAIL!RAM exhaustionconnection exhaustionstack overflow
HostedDBDEAD Server
loadBalancer
SelfHosted
DB
Lag ~30ms
How is this scenario avoided?
Incoming request load doesn’t stop!!!!CASCADING FAILURES
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