Apr 30 21:54:35 a1ebc96a2519 PrimProc[1004]: 35.668435 |0|0|0| C 28 CAL0000: Error total memory available is less than 3GB.

ERROR 1815 (HY000): Internal error: System is not ready yet. Please try again.

https://{server}:{port}/cmapi/{version}/{route}/{command}

$ curl -k -s https://mcs1:8640/cmapi/0.4.0/cluster/status \
      --header 'Content-Type:application/json' \
      --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
      | jq .

$ curl -k -s -X PUT https://mcs1:8640/cmapi/0.4.0/cluster/start \
      --header 'Content-Type:application/json' \
      --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
      --data '{"timeout":20}' \
      | jq .

$ curl -k -s -X PUT https://mcs1:8640/cmapi/0.4.0/cluster/shutdown \
      --header 'Content-Type:application/json' \
      --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
      --data '{"timeout":20}' \
      | jq .

$ curl -k -s -X PUT https://mcs1:8640/cmapi/0.4.0/cluster/node \
      --header 'Content-Type:application/json' \
      --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
      --data '{"timeout":20, "node": "192.0.2.2"}' \
      | jq .

$ curl -k -s -X DELETE https://mcs1:8640/cmapi/0.4.0/cluster/node \
      --header 'Content-Type:application/json' \
      --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
      --data '{"timeout":20, "node": "192.0.2.2"}' \
      | jq .

# minimize swapping
vm.swappiness = 1

# Increase the TCP max buffer size
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216

# Increase the TCP buffer limits
# min, default, and max number of bytes to use
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216

# don't cache ssthresh from previous connection
net.ipv4.tcp_no_metrics_save = 1

# for 1 GigE, increase this to 2500
# for 10 GigE, increase this to 30000
net.core.netdev_max_backlog = 2500

$ sudo sysctl --load=/etc/sysctl.d/90-mariadb-enterprise-columnstore.conf

$ sudo setenforce permissive

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=permissive
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected.
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

$ sudo getenforce
Permissive

$ sudo systemctl disable apparmor

$ sudo aa-status

apparmor module is loaded.
0 profiles are loaded.
0 profiles are in enforce mode.
0 profiles are in complain mode.
0 processes have profiles defined.
0 processes are in enforce mode.
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.

$ sudo systemctl status firewalld

$ sudo systemctl stop firewalld

$ sudo ufw status verbose

$ sudo ufw disable

$ sudo yum install glibc-locale-source glibc-langpack-en

$ sudo localedef -i en_US -f UTF-8 en_US.UTF-8

192.0.2.1     mcs1
192.0.2.2     mcs2
192.0.2.3     mcs3
192.0.2.100   mxs1

$ sudo yum install --enablerepo=PowerTools glusterfs-server

$ sudo yum install centos-release-gluster
$ sudo yum install glusterfs-server

$ wget -O - https://download.gluster.org/pub/gluster/glusterfs/LATEST/rsa.pub | apt-key add -

$ DEBID=$(grep 'VERSION_ID=' /etc/os-release | cut -d '=' -f 2 | tr -d '"')
$ DEBVER=$(grep 'VERSION=' /etc/os-release | grep -Eo '[a-z]+')
$ DEBARCH=$(dpkg --print-architecture)
$ echo deb https://download.gluster.org/pub/gluster/glusterfs/LATEST/Debian/${DEBID}/${DEBARCH}/apt ${DEBVER} main > /etc/apt/sources.list.d/gluster.list

$ sudo apt update

$ sudo apt install glusterfs-server

$ sudo apt update

$ sudo apt install glusterfs-server

$ sudo systemctl start glusterd

$ sudo systemctl enable glusterd

$ sudo gluster peer probe mcs2

$ sudo gluster peer probe mcs3

$ sudo gluster peer probe mcs1


peer probe: Host mcs1 port 24007 already in peer list

$ sudo gluster peer status

Hostname: mcs2
Uuid: 3c8a5c79-22de-45df-9034-8ae624b7b23e
State: Peer in Cluster (Connected)

Hostname: mcs3
Uuid: 862af7b2-bb5e-4b1c-8311-630fa32ed451
State: Peer in Cluster (Connected)

$ sudo mkdir -p /brick/storagemanager

$ sudo gluster volume create storagemanager \
      replica 3 \
      mcs1:/brick/storagemanager \
      mcs2:/brick/storagemanager \
      mcs3:/brick/storagemanager \
      force

$ sudo gluster volume start storagemanager

$ sudo mkdir -p /var/lib/columnstore/storagemanager

127.0.0.1:storagemanager /var/lib/columnstore/storagemanager glusterfs defaults,_netdev 0 0

$ sudo mount -a

$ sudo yum install curl

$ sudo apt install curl apt-transport-https

$ curl -LsSO https://dlm.mariadb.com/enterprise-release-helpers/mariadb_es_repo_setup

$ echo "4d483b4df193831a0101d3dfa7fb3e17411dda7fc06c31be4f9e089c325403c0  mariadb_es_repo_setup" \
       | sha256sum -c -

$ chmod +x mariadb_es_repo_setup

$ sudo ./mariadb_es_repo_setup --token="CUSTOMER_DOWNLOAD_TOKEN" --apply \
      --skip-maxscale \
      --skip-tools \
      --mariadb-server-version="11.4"

$ sudo yum install jemalloc jq curl

$ sudo apt install libjemalloc1 jq curl

$ sudo apt install libjemalloc2 jq curl

$ sudo yum install MariaDB-server \
   MariaDB-backup \
   MariaDB-shared \
   MariaDB-client \
   MariaDB-columnstore-engine \
   MariaDB-columnstore-cmapi

$ sudo apt install mariadb-server \
   mariadb-backup \
   libmariadb3 \
   mariadb-client \
   mariadb-plugin-columnstore \
   mariadb-columnstore-cmapi

$ sudo systemctl stop mariadb

$ sudo systemctl stop mariadb-columnstore

$ sudo systemctl stop mariadb-columnstore-cmapi

[mariadb]
bind_address                           = 0.0.0.0
log_error                              = mariadbd.err
character_set_server                   = utf8
collation_server                       = utf8_general_ci
log_bin                                = mariadb-bin
log_bin_index                          = mariadb-bin.index
relay_log                              = mariadb-relay
relay_log_index                        = mariadb-relay.index
log_slave_updates                      = ON
gtid_strict_mode                       = ON

# This must be unique on each Enterprise ColumnStore node
server_id                              = 1

$ sudo systemctl start mariadb

$ sudo systemctl enable mariadb

$ sudo systemctl stop mariadb-columnstore

$ sudo systemctl start mariadb-columnstore-cmapi

$ sudo systemctl enable mariadb-columnstore-cmapi

CREATE USER 'util_user'@'127.0.0.1'
IDENTIFIED BY 'util_user_passwd';

GRANT SELECT, PROCESS ON *.*
TO 'util_user'@'127.0.0.1';

$ sudo mcsSetConfig CrossEngineSupport Host 127.0.0.1

$ sudo mcsSetConfig CrossEngineSupport Port 3306

$ sudo mcsSetConfig CrossEngineSupport User util_user

$ sudo mcsSetConfig CrossEngineSupport Password util_user_passwd

CREATE USER 'repl'@'192.0.2.%' IDENTIFIED BY 'repl_passwd';

GRANT REPLICA MONITOR,
   REPLICATION REPLICA,
   REPLICATION REPLICA ADMIN,
   REPLICATION MASTER ADMIN
ON *.* TO 'repl'@'192.0.2.%';

CREATE USER 'mxs'@'192.0.2.%'
IDENTIFIED BY 'mxs_passwd';

GRANT SHOW DATABASES ON *.* TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.columns_priv TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.db TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.procs_priv TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.proxies_priv TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.roles_mapping TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.tables_priv TO 'mxs'@'192.0.2.%';

GRANT SELECT ON mysql.user TO 'mxs'@'192.0.2.%';

GRANT BINLOG ADMIN,
   READ_ONLY ADMIN,
   RELOAD,
   REPLICA MONITOR,
   REPLICATION MASTER ADMIN,
   REPLICATION REPLICA ADMIN,
   REPLICATION REPLICA,
   SHOW DATABASES,
   SELECT
ON *.* TO 'mxs'@'192.0.2.%';

CHANGE MASTER TO
   MASTER_HOST='192.0.2.1',
   MASTER_USER='repl',
   MASTER_PASSWORD='repl_passwd',
   MASTER_USE_GTID=slave_pos;

START REPLICA;

SHOW REPLICA STATUS;

SET GLOBAL read_only=ON;

$ openssl rand -hex 32

93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd

$ curl -k -s -X PUT https://mcs1:8640/cmapi/0.4.0/cluster/node \
   --header 'Content-Type:application/json' \
   --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
   --data '{"timeout":120, "node": "192.0.2.1"}' \
   | jq .

{
  "timestamp": "2020-10-28 00:39:14.672142",
  "node_id": "192.0.2.1"
}

$ curl -k -s https://mcs1:8640/cmapi/0.4.0/cluster/status \
   --header 'Content-Type:application/json' \
   --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
   | jq .

{
  "timestamp": "2020-12-15 00:40:34.353574",
  "192.0.2.1": {
    "timestamp": "2020-12-15 00:40:34.362374",
    "uptime": 11467,
    "dbrm_mode": "master",
    "cluster_mode": "readwrite",
    "dbroots": [
      "1"
    ],
    "module_id": 1,
    "services": [
      {
        "name": "workernode",
        "pid": 19202
      },
      {
        "name": "controllernode",
        "pid": 19232
      },
      {
        "name": "PrimProc",
        "pid": 19254
      },
      {
        "name": "ExeMgr",
        "pid": 19292
      },
      {
        "name": "WriteEngine",
        "pid": 19316
      },
      {
        "name": "DMLProc",
        "pid": 19332
      },
      {
        "name": "DDLProc",
        "pid": 19366
      }
    ]
  }

$ curl -k -s -X PUT https://mcs1:8640/cmapi/0.4.0/cluster/node \
   --header 'Content-Type:application/json' \
   --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
   --data '{"timeout":120, "node": "192.0.2.2"}' \
   | jq .

{
  "timestamp": "2020-10-28 00:42:42.796050",
  "node_id": "192.0.2.2"
}

$ curl -k -s https://mcs1:8640/cmapi/0.4.0/cluster/status \
   --header 'Content-Type:application/json' \
   --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
   | jq .

{
  "timestamp": "2020-12-15 00:40:34.353574",
  "192.0.2.1": {
    "timestamp": "2020-12-15 00:40:34.362374",
    "uptime": 11467,
    "dbrm_mode": "master",
    "cluster_mode": "readwrite",
    "dbroots": [
      "1"
    ],
    "module_id": 1,
    "services": [
      {
        "name": "workernode",
        "pid": 19202
      },
      {
        "name": "controllernode",
        "pid": 19232
      },
      {
        "name": "PrimProc",
        "pid": 19254
      },
      {
        "name": "ExeMgr",
        "pid": 19292
      },
      {
        "name": "WriteEngine",
        "pid": 19316
      },
      {
        "name": "DMLProc",
        "pid": 19332
      },
      {
        "name": "DDLProc",
        "pid": 19366
      }
    ]
  },
  "192.0.2.2": {
    "timestamp": "2020-12-15 00:40:34.428554",
    "uptime": 11437,
    "dbrm_mode": "slave",
    "cluster_mode": "readonly",
    "dbroots": [
      "2"
    ],
    "module_id": 2,
    "services": [
      {
        "name": "workernode",
        "pid": 17789
      },
      {
        "name": "PrimProc",
        "pid": 17813
      },
      {
        "name": "ExeMgr",
        "pid": 17854
      },
      {
        "name": "WriteEngine",
        "pid": 17877
      }
    ]
  },
  "192.0.2.3": {
    "timestamp": "2020-12-15 00:40:34.428554",
    "uptime": 11437,
    "dbrm_mode": "slave",
    "cluster_mode": "readonly",
    "dbroots": [
      "2"
    ],
    "module_id": 2,
    "services": [
      {
        "name": "workernode",
        "pid": 17789
      },
      {
        "name": "PrimProc",
        "pid": 17813
      },
      {
        "name": "ExeMgr",
        "pid": 17854
      },
      {
        "name": "WriteEngine",
        "pid": 17877
      }
    ]
  },
  "num_nodes": 3
}

$ sudo yum install policycoreutils policycoreutils-python

$ sudo yum install policycoreutils python3-policycoreutils policycoreutils-python-utils

$ sudo grep mysqld /var/log/audit/audit.log | audit2allow -M mariadb_local

$ sudo grep mysqld /var/log/audit/audit.log | audit2allow -M mariadb_local

Nothing to do

$ sudo semodule -i mariadb_local.pp

$ sudo setenforce enforcing

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=enforcing
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected.
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

$ sudo getenforce

Enforcing

$ sudo systemctl status firewalld

$ sudo systemctl start firewalld

$ sudo firewall-cmd --permanent --add-rich-rule='
   rule family="ipv4"
   source address="192.0.2.0/24"
   destination address="192.0.2.0/24"
   port port="3306" protocol="tcp"
   accept'

$ sudo firewall-cmd --permanent --add-rich-rule='
   rule family="ipv4"
   source address="192.0.2.0/24"
   destination address="192.0.2.0/24"
   port port="8600-8630" protocol="tcp"
   accept'

$ sudo firewall-cmd --permanent --add-rich-rule='
   rule family="ipv4"
   source address="192.0.2.0/24"
   destination address="192.0.2.0/24"
   port port="8640" protocol="tcp"
   accept'

$ sudo firewall-cmd --permanent --add-rich-rule='
   rule family="ipv4"
   source address="192.0.2.0/24"
   destination address="192.0.2.0/24"
   port port="8700" protocol="tcp"
   accept'

$ sudo firewall-cmd --permanent --add-rich-rule='
   rule family="ipv4"
   source address="192.0.2.0/24"
   destination address="192.0.2.0/24"
   port port="8800" protocol="tcp"
   accept'

$ sudo firewall-cmd --reload

$ sudo ufw status verbose

$ sudo ufw enable

$ sudo ufw allow from 192.0.2.0/24 to 192.0.2.3 port 3306 proto tcp

$ sudo ufw allow from 192.0.2.0/24 to 192.0.2.3 port 8600:8630 proto tcp

$ sudo ufw allow from 192.0.2.0/24 to 192.0.2.3 port 8640 proto tcp

$ sudo ufw allow from 192.0.2.0/24 to 192.0.2.3 port 8700 proto tcp

$ sudo ufw allow from 192.0.2.0/24 to 192.0.2.3 port 8800 proto tcp

$ sudo ufw reload

$ systemctl status mariadb

$ sudo systemctl start mariadb

$ sudo mariadb
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 38
Server version: 11.4.5-3-MariaDB-Enterprise MariaDB Enterprise Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>

SELECT PLUGIN_NAME, PLUGIN_STATUS
FROM information_schema.PLUGINS
WHERE PLUGIN_LIBRARY LIKE 'ha_columnstore%';

+---------------------+---------------+
| PLUGIN_NAME         | PLUGIN_STATUS |
+---------------------+---------------+
| Columnstore         | ACTIVE        |
| COLUMNSTORE_COLUMNS | ACTIVE        |
| COLUMNSTORE_TABLES  | ACTIVE        |
| COLUMNSTORE_FILES   | ACTIVE        |
| COLUMNSTORE_EXTENTS | ACTIVE        |
+---------------------+---------------+

$ systemctl status mariadb-columnstore-cmapi

$ sudo systemctl start mariadb-columnstore-cmapi

$ curl -k -s https://mcs1:8640/cmapi/0.4.0/cluster/status \
   --header 'Content-Type:application/json' \
   --header 'x-api-key:93816fa66cc2d8c224e62275bd4f248234dd4947b68d4af2b29671dd7d5532dd' \
   | jq .

{
  "timestamp": "2020-12-15 00:40:34.353574",
  "192.0.2.1": {
    "timestamp": "2020-12-15 00:40:34.362374",
    "uptime": 11467,
    "dbrm_mode": "master",
    "cluster_mode": "readwrite",
    "dbroots": [
      "1"
    ],
    "module_id": 1,
    "services": [
      {
        "name": "workernode",
        "pid": 19202
      },
      {
        "name": "controllernode",
        "pid": 19232
      },
      {
        "name": "PrimProc",
        "pid": 19254
      },
      {
        "name": "ExeMgr",
        "pid": 19292
      },
      {
        "name": "WriteEngine",
        "pid": 19316
      },
      {
        "name": "DMLProc",
        "pid": 19332
      },
      {
        "name": "DDLProc",
        "pid": 19366
      }
    ]
  },
  "192.0.2.2": {
    "timestamp": "2020-12-15 00:40:34.428554",
    "uptime": 11437,
    "dbrm_mode": "slave",
    "cluster_mode": "readonly",
    "dbroots": [
      "2"
    ],
    "module_id": 2,
    "services": [
      {
        "name": "workernode",
        "pid": 17789
      },
      {
        "name": "PrimProc",
        "pid": 17813
      },
      {
        "name": "ExeMgr",
        "pid": 17854
      },
      {
        "name": "WriteEngine",
        "pid": 17877
      }
    ]
  },
  "192.0.2.3": {
    "timestamp": "2020-12-15 00:40:34.428554",
    "uptime": 11437,
    "dbrm_mode": "slave",
    "cluster_mode": "readonly",
    "dbroots": [
      "2"
    ],
    "module_id": 2,
    "services": [
      {
        "name": "workernode",
        "pid": 17789
      },
      {
        "name": "PrimProc",
        "pid": 17813
      },
      {
        "name": "ExeMgr",
        "pid": 17854
      },
      {
        "name": "WriteEngine",
        "pid": 17877
      }
    ]
  },
  "num_nodes": 3
}

$ sudo mariadb

CREATE DATABASE IF NOT EXISTS test;

CREATE TABLE IF NOT EXISTS test.contacts (
   first_name VARCHAR(50),
   last_name VARCHAR(50),
   email VARCHAR(100)
) ENGINE = ColumnStore;

$ sudo mariadb

SHOW CREATE TABLE test.contacts\G;

$ sudo mariadb

INSERT INTO test.contacts (first_name, last_name, email)
   VALUES
   ("Kai", "Devi", "kai.devi@example.com"),
   ("Lee", "Wang", "lee.wang@example.com");

$ sudo mariadb

SELECT * FROM test.contacts;

+------------+-----------+----------------------+
| first_name | last_name | email                |
+------------+-----------+----------------------+
| Kai        | Devi      | kai.devi@example.com |
| Lee        | Wang      | lee.wang@example.com |
+------------+-----------+----------------------+

$ sudo yum install curl

$ sudo apt install curl apt-transport-https

$ curl -LsSO https://dlm.mariadb.com/enterprise-release-helpers/mariadb_es_repo_setup

$ echo "4d483b4df193831a0101d3dfa7fb3e17411dda7fc06c31be4f9e089c325403c0  mariadb_es_repo_setup" \
       | sha256sum -c -

$ chmod +x mariadb_es_repo_setup

$ sudo ./mariadb_es_repo_setup --token="CUSTOMER_DOWNLOAD_TOKEN" --apply \
      --skip-server \
      --skip-tools \
      --mariadb-maxscale-version="22.08"

$ sudo yum install maxscale

$ sudo apt install maxscale

[maxscale]
threads          = auto
admin_host       = 0.0.0.0
admin_secure_gui = false

$ sudo systemctl restart maxscale

$ maxctrl create server mcs1 192.0.2.101

$ maxctrl create server mcs2 192.0.2.102

$ maxctrl create server mcs3 192.0.2.103

$ maxctrl create monitor columnstore_monitor mariadbmon \
     user=mxs \
     password='MAXSCALE_USER_PASSWORD' \
     replication_user=repl \
     replication_password='REPLICATION_USER_PASSWORD' \
     --servers mcs1 mcs2 mcs3

$ maxctrl create service connection_router_service readconnroute \
     user=mxs \
     password='MAXSCALE_USER_PASSWORD' \
     router_options=slave \
     --servers mcs1 mcs2 mcs3

$ maxctrl create listener connection_router_service connection_router_listener 3308 \
     protocol=MariaDBClient

$ maxctrl create service query_router_service readwritesplit  \
     user=mxs \
     password='MAXSCALE_USER_PASSWORD' \
     --servers mcs1 mcs2 mcs3

$ maxctrl create listener query_router_service query_router_listener 3307 \
     protocol=MariaDBClient

$ maxctrl start services

$ maxctrl show maxscale

┌──────────────┬───────────────────────────────────────────────────────┐
│ Version      │ 22.08.15                                              │
├──────────────┼───────────────────────────────────────────────────────┤
│ Commit       │ 3761fa7a52046bc58faad8b5a139116f9e33364c              │
├──────────────┼───────────────────────────────────────────────────────┤
│ Started At   │ Thu, 05 Aug 2021 20:21:20 GMT                         │
├──────────────┼───────────────────────────────────────────────────────┤
│ Activated At │ Thu, 05 Aug 2021 20:21:20 GMT                         │
├──────────────┼───────────────────────────────────────────────────────┤
│ Uptime       │ 868                                                   │
├──────────────┼───────────────────────────────────────────────────────┤
│ Config Sync  │ null                                                  │
├──────────────┼───────────────────────────────────────────────────────┤
│ Parameters   │ {                                                     │
│              │     "admin_auth": true,                               │
│              │     "admin_enabled": true,                            │
│              │     "admin_gui": true,                                │
│              │     "admin_host": "0.0.0.0",                          │
│              │     "admin_log_auth_failures": true,                  │
│              │     "admin_pam_readonly_service": null,               │
│              │     "admin_pam_readwrite_service": null,              │
│              │     "admin_port": 8989,                               │
│              │     "admin_secure_gui": false,                        │
│              │     "admin_ssl_ca_cert": null,                        │
│              │     "admin_ssl_cert": null,                           │
│              │     "admin_ssl_key": null,                            │
│              │     "admin_ssl_version": "MAX",                       │
│              │     "auth_connect_timeout": "10000ms",                │
│              │     "auth_read_timeout": "10000ms",                   │
│              │     "auth_write_timeout": "10000ms",                  │
│              │     "cachedir": "/var/cache/maxscale",                │
│              │     "config_sync_cluster": null,                      │
│              │     "config_sync_interval": "5000ms",                 │
│              │     "config_sync_password": "*****",                  │
│              │     "config_sync_timeout": "10000ms",                 │
│              │     "config_sync_user": null,                         │
│              │     "connector_plugindir": "/usr/lib64/mysql/plugin", │
│              │     "datadir": "/var/lib/maxscale",                   │
│              │     "debug": null,                                    │
│              │     "dump_last_statements": "never",                  │
│              │     "execdir": "/usr/bin",                            │
│              │     "language": "/var/lib/maxscale",                  │
│              │     "libdir": "/usr/lib64/maxscale",                  │
│              │     "load_persisted_configs": true,                   │
│              │     "local_address": null,                            │
│              │     "log_debug": false,                               │
│              │     "log_info": false,                                │
│              │     "log_notice": true,                               │
│              │     "log_throttling": {                               │
│              │         "count": 10,                                  │
│              │         "suppress": 10000,                            │
│              │         "window": 1000                                │
│              │     },                                                │
│              │     "log_warn_super_user": false,                     │
│              │     "log_warning": true,                              │
│              │     "logdir": "/var/log/maxscale",                    │
│              │     "max_auth_errors_until_block": 10,                │
│              │     "maxlog": true,                                   │
│              │     "module_configdir": "/etc/maxscale.modules.d",    │
│              │     "ms_timestamp": false,                            │
│              │     "passive": false,                                 │
│              │     "persistdir": "/var/lib/maxscale/maxscale.cnf.d", │
│              │     "piddir": "/var/run/maxscale",                    │
│              │     "query_classifier": "qc_sqlite",                  │
│              │     "query_classifier_args": null,                    │
│              │     "query_classifier_cache_size": 289073971,         │
│              │     "query_retries": 1,                               │
│              │     "query_retry_timeout": "5000ms",                  │
│              │     "rebalance_period": "0ms",                        │
│              │     "rebalance_threshold": 20,                        │
│              │     "rebalance_window": 10,                           │
│              │     "retain_last_statements": 0,                      │
│              │     "session_trace": 0,                               │
│              │     "skip_permission_checks": false,                  │
│              │     "sql_mode": "default",                            │
│              │     "syslog": true,                                   │
│              │     "threads": 1,                                     │
│              │     "users_refresh_interval": "0ms",                  │
│              │     "users_refresh_time": "30000ms",                  │
│              │     "writeq_high_water": 16777216,                    │
│              │     "writeq_low_water": 8192                          │
│              │ }                                                     │
└──────────────┴───────────────────────────────────────────────────────┘

$ maxctrl list servers

┌────────┬────────────────┬──────┬─────────────┬─────────────────┬────────┐
│ Server │ Address        │ Port │ Connections │ State           │ GTID   │
├────────┼────────────────┼──────┼─────────────┼─────────────────┼────────┤
│ mcs1   │ 192.0.2.1      │ 3306 │ 1           │ Master, Running │ 0-1-25 │
├────────┼────────────────┼──────┼─────────────┼─────────────────┼────────┤
│ mcs2   │ 192.0.2.2      │ 3306 │ 1           │ Slave, Running  │ 0-1-25 │
├────────┼────────────────┼──────┼─────────────┼─────────────────┼────────┤
│ mcs3   │ 192.0.2.3      │ 3306 │ 1           │ Slave, Running  │ 0-1-25 │
└────────┴────────────────┴──────┴─────────────┴─────────────────┴────────┘

$ maxctrl show server mcs1

┌─────────────────────┬───────────────────────────────────────────┐
│ Server              │ mcs1                                      │
├─────────────────────┼───────────────────────────────────────────┤
│ Address             │ 192.0.2.1                                 │
├─────────────────────┼───────────────────────────────────────────┤
│ Port                │ 3306                                      │
├─────────────────────┼───────────────────────────────────────────┤
│ State               │ Master, Running                           │
├─────────────────────┼───────────────────────────────────────────┤
│ Version             │ 11.4.5-3-MariaDB-enterprise-log           │
├─────────────────────┼───────────────────────────────────────────┤
│ Last Event          │ master_up                                 │
├─────────────────────┼───────────────────────────────────────────┤
│ Triggered At        │ Thu, 05 Aug 2021 20:22:26 GMT             │
├─────────────────────┼───────────────────────────────────────────┤
│ Services            │ connection_router_service                 │
│                     │ query_router_service                      │
├─────────────────────┼───────────────────────────────────────────┤
│ Monitors            │ columnstore_monitor                       │
├─────────────────────┼───────────────────────────────────────────┤
│ Master ID           │ -1                                        │
├─────────────────────┼───────────────────────────────────────────┤
│ Node ID             │ 1                                         │
├─────────────────────┼───────────────────────────────────────────┤
│ Slave Server IDs    │                                           │
├─────────────────────┼───────────────────────────────────────────┤
│ Current Connections │ 1                                         │
├─────────────────────┼───────────────────────────────────────────┤
│ Total Connections   │ 1                                         │
├─────────────────────┼───────────────────────────────────────────┤
│ Max Connections     │ 1                                         │
├─────────────────────┼───────────────────────────────────────────┤
│ Statistics          │ {                                         │
│                     │     "active_operations": 0,               │
│                     │     "adaptive_avg_select_time": "0ns",    │
│                     │     "connection_pool_empty": 0,           │
│                     │     "connections": 1,                     │
│                     │     "max_connections": 1,                 │
│                     │     "max_pool_size": 0,                   │
│                     │     "persistent_connections": 0,          │
│                     │     "reused_connections": 0,              │
│                     │     "routed_packets": 0,                  │
│                     │     "total_connections": 1                │
│                     │ }                                         │
├─────────────────────┼───────────────────────────────────────────┤
│ Parameters          │ {                                         │
│                     │     "address": "192.0.2.1",               │
│                     │     "disk_space_threshold": null,         │
│                     │     "extra_port": 0,                      │
│                     │     "monitorpw": null,                    │
│                     │     "monitoruser": null,                  │
│                     │     "persistmaxtime": "0ms",              │
│                     │     "persistpoolmax": 0,                  │
│                     │     "port": 3306,                         │
│                     │     "priority": 0,                        │
│                     │     "proxy_protocol": false,              │
│                     │     "rank": "primary",                    │
│                     │     "socket": null,                       │
│                     │     "ssl": false,                         │
│                     │     "ssl_ca_cert": null,                  │
│                     │     "ssl_cert": null,                     │
│                     │     "ssl_cert_verify_depth": 9,           │
│                     │     "ssl_cipher": null,                   │
│                     │     "ssl_key": null,                      │
│                     │     "ssl_verify_peer_certificate": false, │
│                     │     "ssl_verify_peer_host": false,        │
│                     │     "ssl_version": "MAX"                  │
│                     │ }                                         │
└─────────────────────┴───────────────────────────────────────────┘

$ maxctrl list monitors

┌─────────────────────┬─────────┬──────────────────┐
│ Monitor             │ State   │ Servers          │
├─────────────────────┼─────────┼──────────────────┤
│ columnstore_monitor │ Running │ mcs1, mcs2, mcs3 │
└─────────────────────┴─────────┴──────────────────┘

$ maxctrl show monitor columnstore_monitor

┌─────────────────────┬─────────────────────────────────────┐
│ Monitor             │ columnstore_monitor                 │
├─────────────────────┼─────────────────────────────────────┤
│ Module              │ mariadbmon                          │
├─────────────────────┼─────────────────────────────────────┤
│ State               │ Running                             │
├─────────────────────┼─────────────────────────────────────┤
│ Servers             │ mcs1                                │
│                     │ mcs2                                │
│                     │ mcs3                                │
├─────────────────────┼─────────────────────────────────────┤
│ Parameters          │ {                                   │
│                     │     "backend_connect_attempts": 1,  │
│                     │     "backend_connect_timeout": 3,   │
│                     │     "backend_read_timeout": 3,      │
│                     │     "backend_write_timeout": 3,     │
│                     │     "disk_space_check_interval": 0, │
│                     │     "disk_space_threshold": null,   │
│                     │     "events": "all",                │
│                     │     "journal_max_age": 28800,       │
│                     │     "module": "mariadbmon",         │
│                     │     "monitor_interval": 2000,       │
│                     │     "password": "*****",            │
│                     │     "script": null,                 │
│                     │     "script_timeout": 90,           │
│                     │     "user": "mxs"                   │
│                     │ }                                   │
├─────────────────────┼─────────────────────────────────────┤
│ Monitor Diagnostics │ {}                                  │
└─────────────────────┴─────────────────────────────────────┘

$ maxctrl list services

┌───────────────────────────┬────────────────┬─────────────┬───────────────────┬──────────────────┐
│ Service                   │ Router         │ Connections │ Total Connections │ Servers          │
├───────────────────────────┼────────────────┼─────────────┼───────────────────┼──────────────────┤
│ connection_router_Service │ readconnroute  │ 0           │ 0                 │ mcs1, mcs2, mcs3 │
├───────────────────────────┼────────────────┼─────────────┼───────────────────┼──────────────────┤
│ query_router_service      │ readwritesplit │ 0           │ 0                 │ mcs1, mcs2, mcs3 │
└───────────────────────────┴────────────────┴─────────────┴───────────────────┴──────────────────┘

$ maxctrl show service query_router_service

┌─────────────────────┬─────────────────────────────────────────────────────────────┐
│ Service             │ query_router_service                                        │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Router              │ readwritesplit                                              │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ State               │ Started                                                     │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Started At          │ Sat Aug 28 21:41:16 2021                                    │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Current Connections │ 0                                                           │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Total Connections   │ 0                                                           │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Max Connections     │ 0                                                           │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Cluster             │                                                             │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Servers             │ mcs1                                                        │
│                     │ mcs2                                                        │
│                     │ mcs3                                                        │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Services            │                                                             │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Filters             │                                                             │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Parameters          │ {                                                           │
│                     │     "auth_all_servers": false,                              │
│                     │     "causal_reads": "false",                                │
│                     │     "causal_reads_timeout": "10000ms",                      │
│                     │     "connection_keepalive": "300000ms",                     │
│                     │     "connection_timeout": "0ms",                            │
│                     │     "delayed_retry": false,                                 │
│                     │     "delayed_retry_timeout": "10000ms",                     │
│                     │     "disable_sescmd_history": false,                        │
│                     │     "enable_root_user": false,                              │
│                     │     "idle_session_pool_time": "-1000ms",                    │
│                     │     "lazy_connect": false,                                  │
│                     │     "localhost_match_wildcard_host": true,                  │
│                     │     "log_auth_warnings": true,                              │
│                     │     "master_accept_reads": false,                           │
│                     │     "master_failure_mode": "fail_instantly",                │
│                     │     "master_reconnection": false,                           │
│                     │     "max_connections": 0,                                   │
│                     │     "max_sescmd_history": 50,                               │
│                     │     "max_slave_connections": 255,                           │
│                     │     "max_slave_replication_lag": "0ms",                     │
│                     │     "net_write_timeout": "0ms",                             │
│                     │     "optimistic_trx": false,                                │
│                     │     "password": "*****",                                    │
│                     │     "prune_sescmd_history": true,                           │
│                     │     "rank": "primary",                                      │
│                     │     "retain_last_statements": -1,                           │
│                     │     "retry_failed_reads": true,                             │
│                     │     "reuse_prepared_statements": false,                     │
│                     │     "router": "readwritesplit",                             │
│                     │     "session_trace": false,                                 │
│                     │     "session_track_trx_state": false,                       │
│                     │     "slave_connections": 255,                               │
│                     │     "slave_selection_criteria": "LEAST_CURRENT_OPERATIONS", │
│                     │     "strict_multi_stmt": false,                             │
│                     │     "strict_sp_calls": false,                               │
│                     │     "strip_db_esc": true,                                   │
│                     │     "transaction_replay": false,                            │
│                     │     "transaction_replay_attempts": 5,                       │
│                     │     "transaction_replay_max_size": 1073741824,              │
│                     │     "transaction_replay_retry_on_deadlock": false,          │
│                     │     "type": "service",                                      │
│                     │     "use_sql_variables_in": "all",                          │
│                     │     "user": "mxs",                                          │
│                     │     "version_string": null                                  │
│                     │ }                                                           │
├─────────────────────┼─────────────────────────────────────────────────────────────┤
│ Router Diagnostics  │ {                                                           │
│                     │     "avg_sescmd_history_length": 0,                         │
│                     │     "max_sescmd_history_length": 0,                         │
│                     │     "queries": 0,                                           │
│                     │     "replayed_transactions": 0,                             │
│                     │     "ro_transactions": 0,                                   │
│                     │     "route_all": 0,                                         │
│                     │     "route_master": 0,                                      │
│                     │     "route_slave": 0,                                       │
│                     │     "rw_transactions": 0,                                   │
│                     │     "server_query_statistics": []                           │
│                     │ }                                                           │
└─────────────────────┴─────────────────────────────────────────────────────────────┘

$ sudo mariadb

CREATE USER 'app_user'@'192.0.2.10' IDENTIFIED BY 'app_user_passwd';

GRANT ALL ON test.* TO 'app_user'@'192.0.2.10';

CREATE USER 'app_user'@'192.0.2.11' IDENTIFIED BY 'app_user_passwd';

GRANT ALL ON test.* TO 'app_user'@'192.0.2.11';

$ mariadb --host 192.0.2.10 --port 3307
      --user app_user --password

$ maxctrl list listeners

┌────────────────────────────┬──────┬──────┬─────────┬───────────────────────────┐
│ Name                       │ Port │ Host │ State   │ Service                   │
├────────────────────────────┼──────┼──────┼─────────┼───────────────────────────┤
│ connection_router_listener │ 3308 │ ::   │ Running │ connection_router_service │
├────────────────────────────┼──────┼──────┼─────────┼───────────────────────────┤
│ query_router_listener      │ 3307 │ ::   │ Running │ query_router_service      │
└────────────────────────────┴──────┴──────┴─────────┴───────────────────────────┘

$ mariadb --host 192.0.2.10 --port 3308 \
      --user app_user --password

SELECT @@global.hostname, @@global.server_id;

+-------------------+--------------------+
| @@global.hostname | @@global.server_id |
+-------------------+--------------------+
|              mcs2 |                  2 |
+-------------------+--------------------+

$ maxctrl list listeners

┌────────────────────────────┬──────┬──────┬─────────┬───────────────────────────┐
│ Name                       │ Port │ Host │ State   │ Service                   │
├────────────────────────────┼──────┼──────┼─────────┼───────────────────────────┤
│ connection_router_listener │ 3308 │ ::   │ Running │ connection_router_service │
├────────────────────────────┼──────┼──────┼─────────┼───────────────────────────┤
│ query_router_listener      │ 3307 │ ::   │ Running │ query_router_service      │
└────────────────────────────┴──────┴──────┴─────────┴───────────────────────────┘

$ mariadb --host 192.0.2.10 --port 3307 \
      --user app_user --password

CREATE TABLE test.load_balancing_test (
   id INT PRIMARY KEY AUTO_INCREMENT,
   hostname VARCHAR(256),
   server_id INT
);

INSERT INTO test.load_balancing_test (hostname, server_id)
VALUES (@@global.hostname, @@global.server_id);

SELECT * FROM test.load_balancing_test;

+----+----------+-----------+
| id | hostname | server_id |
+----+----------+-----------+
|  1 | mcs1     |         1 |
|  2 | mcs1     |         1 |
|  3 | mcs1     |         1 |
+----+----------+-----------+

$ maxctrl list listeners

┌────────────────────────────┬──────┬──────┬─────────┬───────────────────────────┐
│ Name                       │ Port │ Host │ State   │ Service                   │
├────────────────────────────┼──────┼──────┼─────────┼───────────────────────────┤
│ connection_router_listener │ 3308 │ ::   │ Running │ connection_router_service │
├────────────────────────────┼──────┼──────┼─────────┼───────────────────────────┤
│ query_router_listener      │ 3307 │ ::   │ Running │ query_router_service      │
└────────────────────────────┴──────┴──────┴─────────┴───────────────────────────┘

$ mariadb --host 192.0.2.10 --port 3307 \
      --user app_user --password

SELECT @@global.hostname, @@global.server_id;

+-------------------+--------------------+
| @@global.hostname | @@global.server_id |
+-------------------+--------------------+
|              mcs2 |                  2 |
+-------------------+--------------------+

SELECT @@global.hostname, @@global.server_id;

+-------------------+--------------------+
| @@global.hostname | @@global.server_id |
+-------------------+--------------------+
|              mcs3 |                  3 |
+-------------------+--------------------+

CREATE DATABASE inventory;

CREATE TABLE inventory.products (
   product_name VARCHAR(11) NOT NULL DEFAULT '',
   supplier VARCHAR(128) NOT NULL DEFAULT '',
   quantity VARCHAR(128) NOT NULL DEFAULT '',
   unit_cost VARCHAR(128) NOT NULL DEFAULT ''
) ENGINE=Columnstore DEFAULT CHARSET=utf8;

$ sudo cpimport -s '\t' inventory products /tmp/inventory-products.tsv

LOAD DATA INFILE '/tmp/inventory-products.tsv'
INTO TABLE inventory.products;

$ mariadb --quick \
   --skip-column-names \
   --execute="SELECT * FROM inventory.products" \
   | cpimport -s '\t' inventory products