Skip to content
This repository has been archived by the owner on Apr 14, 2024. It is now read-only.

Replication PostreSQL to Elasticsearch via Logical replication slots

License

Notifications You must be signed in to change notification settings

hmilkovi/pg-replicate-elastic

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

8 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

Replication PostreSQL to Elasticsearch via Logical replication slots

pg-replicate-elastic

Demo

asciicast

Install (Python2)

$ pip install pg-replicate-elastic

wal2json

Note: Use my fork as we tested it to be 100% sure it work with it and no breaking changes happen, wal2json .

$ git clone https://github.com/hmilkovi/wal2json.git
$ PATH=/path/to/bin/pg_config:$PATH
$ USE_PGXS=1 make
$ USE_PGXS=1 make install

You need to set up at least two parameters at postgresql.conf:

wal_level = logical
max_replication_slots = 1

After changing these parameters, a restart is needed.

Usage

pg_replicate_elastic --config=<absolute path to json config>

Construct configuration file in json format where:

  • replication_slot json object for replication slot name and if is temporary
  • tables is array of tables we want to replicate
  • es_connection connection string to Elasticsearch
  • postgres json object for PostreSQL connection
  • inital_sync boolean for inital syncronization that needs to be done first time to replicate old data

Example configuration

{
	"replication_slot": {
		"name": "elasticsearch_slot",
		"is_temp": true
	},
	"tables": [{
		"name": "poc",
		"primary_key": "a"
		"exclude_columns": "c,z"
	}],
	"es_connection": "http://127.0.0.1:9200/",
	"postgres": {
		"port": 5432,
		"host": "127.0.0.1",
		"database": "poc",
		"username": "test",
		"password": "test"
	},
	"inital_sync": false
}

Note

wal2json is not my software so for licence check their licence

About

Replication PostreSQL to Elasticsearch via Logical replication slots

Topics

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages