MariaDB

Kubemq Aws-MariaDB target connector allows services using kubemq server to access Aws-MariaDB database services.

Prerequisites

The following are required to run the Aws-MariaDB target connector:

  • kubemq cluster

  • Aws-MariaDB server

  • kubemq-targets deployment

Configuration

Aws-MariaDB target connector configuration properties:

Properties Key

Required

Description

Example

connection

yes

mariadb connection string address

"username:password@(endpoint:port)/dbname?charset=utf8&parseTime=True&loc=Local"

max_idle_connections

no

set max idle connections

"10"

max_open_connections

no

set max open connections

"100"

connection_max_lifetime_seconds

no

set max lifetime for connections in seconds

"3600"

Example:

bindings:
  - name: kubemq-query-aws-mariadb
    source:
      kind: kubemq.query
      name: kubemq-query
      properties:
        address: "kubemq-cluster:50000"
        client_id: "kubemq-query-aws-mariadb-connector"
        auth_token: ""
        channel: "query.mariadb"
        group: ""
        auto_reconnect: "true"
        reconnect_interval_seconds: "1"
        max_reconnects: "0"
    target:
      kind: aws.rds.mariadb
      name: aws-rds-mariadb
      properties:
        connection: "root:mysql@(localhost:3306)/store?charset=utf8&parseTime=True&loc=Local"
        max_idle_connections: "10"
        max_open_connections: "100"
        connection_max_lifetime_seconds: "3600"

Usage

Query Request

Query request metadata setting:

Metadata Key

Required

Description

Possible values

method

yes

set type of request

"query"

Query request data setting:

Data Key

Required

Description

Possible values

data

yes

query string

base64 bytes array

Example:

Query string: SELECT id,title,content,bignumber,boolvalue FROM post;

{
  "metadata": {
    "method": "query"
  },
  "data": "U0VMRUNUIGlkLHRpdGxlLGNvbnRlbnQsYmlnbnVtYmVyLGJvb2x2YWx1ZSBGUk9NIHBvc3Q7"
}

Exec Request

Exec request metadata setting:

Metadata Key

Required

Description

Possible values

method

yes

set type of request

"exec"

isolation_level

no

set isolation level for exec operation

""

"read_uncommitted"

"read_committed"

"repeatable_read"

"serializable"

Exec request data setting:

Data Key

Required

Description

Possible values

data

yes

exec string

base64 bytes array

Example:

Exec string:

INSERT INTO post(ID,TITLE,CONTENT,BIGNUMBER,BOOLVALUE) VALUES
                           (0,NULL,'Content One',1231241241231231123,true),
                           (1,'Title Two','Content Two',123125241231231123,false);
{
  "metadata": {
    "method": "exec",
    "isolation_level": "read_uncommitted"
  },
  "data": "SU5TRVJUIElOVE8gcG9zdChJRCxUSVRMRSxDT05URU5ULEJJR05VTUJFUixCT09MVkFMVUUpIFZBTFVFUwoJICAgICAgICAgICAgICAgICAgICAgICAoMCxOVUxMLCdDb250ZW50IE9uZScsMTIzMTI0MTI0MTIzMTIzMTEyMyx0cnVlKSwKCSAgICAgICAgICAgICAgICAgICAgICAgKDEsJ1RpdGxlIFR3bycsJ0NvbnRlbnQgVHdvJywxMjMxMjUyNDEyMzEyMzExMjMsZmFsc2UpOw==" 
}

Transaction Request

Transaction request metadata setting:

Metadata Key

Required

Description

Possible values

method

yes

set type of request

"transaction"

isolation_level

no

set isolation level for exec operation

""

"read_uncommitted"

"read_committed"

"repeatable_read"

"serializable"

Transaction request data setting:

Data Key

Required

Description

Possible values

data

yes

string string

base64 bytes array

Example:

Transaction string:

DROP TABLE IF EXISTS post;
CREATE TABLE post (
         ID bigint,
         TITLE varchar(40),
         CONTENT varchar(255),
         BIGNUMBER bigint,
         BOOLVALUE boolean,
         CONSTRAINT pk_post PRIMARY KEY(ID)
       );
{
  "metadata": {
    "key": "your-mariadb-key",
    "method": "delete"
  },
  "data": "RFJPUCBUQUJMRSBJRiBFWElTVFMgcG9zdDsKCSAgICAgICBDUkVBVEUgVEFCTEUgcG9zdCAoCgkgICAgICAgICBJRCBiaWdpbnQsCgkgICAgICAgICBUSVRMRSB2YXJjaGFyKDQwKSwKCSAgICAgICAgIENPTlRFTlQgdmFyY2hhcigyNTUpLAoJCQkgQklHTlVNQkVSIGJpZ2ludCwKCQkJIEJPT0xWQUxVRSBib29sZWFuLAoJICAgICAgICAgQ09OU1RSQUlOVCBwa19wb3N0IFBSSU1BUlkgS0VZKElEKQoJICAgICAgICk7"
}

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