v1.4.0 Release Note

Add matrixDB Support
By Ruohang Feng（@Vonng） |
Categories:

v1.4.0

Architecture

  • Decouple system into 4 major categories: INFRA, NODES, PGSQL, REDIS, which makes pigsty far more clear and more extensible.
  • Single Node Deployment = INFRA + NODES + PGSQL
  • Deploy pgsql clusters = NODES + PGSQL
  • Deploy redis clusters = NODES + REDIS
  • Deploy other databases = NODES + xxx (e.g MONGO, KAFKA, … TBD)

Accessibility

  • CDN for mainland China.
  • Get the latest source with bash -c "$(curl -fsSL http://download.pigsty.cc/get)"
  • Download & Extract packages with new download script.

Monitor Enhancement

  • Split monitoring system into 5 major categories: INFRA, NODES, REDIS, PGSQL, APP
  • Logging enabled by default
    • now loki and promtail are enabled by default. with prebuilt loki-rpm
  • Models & Labels
    • A hidden ds prometheus datasource variable is added for all dashboards, so you can easily switch different datasource simply by select a new one rather than modifying Grafana Datasources & Dashboards
    • An ip label is added for all metrics, and will be used as join key between database metrics & nodes metrics
  • INFRA Monitoring
    • Home dashboard for infra: INFRA Overview
    • Add logging Dashboards : Logs Instance
    • PGLOG Analysis & PGLOG Session now treated as an example Pigsty APP.
  • NODES Monitoring Application
    • If you don’t care database at all, Pigsty now can be used as host monitoring software alone!
    • Consist of 4 core dashboards: Nodes Overview & Nodes Cluster & Nodes Instance & Nodes Alert
    • Introduce new identity variables for nodes: node_cluster and nodename
    • Variable pg_hostname now means set hostname same as postgres instance name to keep backward-compatible
    • Variable nodename_overwrite control whether overwrite node’s hostname with nodename
    • Variable nodename_exchange will write nodename to each other’s /etc/hosts
    • All nodes metrics reference are overhauled, join by ip
    • Nodes monitoring targets are managed alone under /etc/prometheus/targets/nodes
  • PGSQL Monitoring Enhancement
    • Complete new PGSQL Cluster which simplify and focus on important stuff among cluster.
    • New Dashboard PGSQL Databases which is cluster level object monitoring. Such as tables & queries among the entire cluster rather than single instance.
    • PGSQL Alert dashboard now only focus on pgsql alerts.
    • PGSQL Shard are added to PGSQL
  • Redis Monitoring Enhancement
    • Add nodes monitoring for all redis dashboards.

MatrixDB Support

  • MatrixDB (Greenplum 7) can be deployed via pigsty-matrix.yml playbook
  • MatrixDB Monitor Dashboards : PGSQL MatrixDB
  • Example configuration added: pigsty-mxdb.yml

Provisioning Enhancement

Now pigsty work flow works as this:

 infra.yml ---> install pigsty on single meta node
      |          then add more nodes under pigsty's management
      |
 nodes.yml ---> prepare nodes for pigsty (node setup, dcs, node_exporter, promtail)
      |          then choose one playbook to deploy database clusters on those nodes
      |
      ^--> pgsql.yml   install postgres on prepared nodes
      ^--> redis.yml   install redis on prepared nodes

infra-demo.yml = 
           infra.yml -l meta     +
           nodes.yml -l pg-test  +
           pgsql.yml -l pg-test +
           infra-loki.yml + infra-jupyter.yml + infra-pgweb.yml
  • nodes.yml to setup & prepare nodes for pigsty
    • setup node, node_exporter, consul agent on nodes
    • node-remove.yml are used for node de-register
  • pgsql.yml now only works on prepared nodes
    • pgsql-remove now only responsible for postgres itself. (dcs and node monitor are taken by node.yml)
    • Add a series of new options to reuse postgres role in greenplum/matrixdb
  • redis.yml now works on prepared nodes
    • and redis-remove.yml now remove redis from nodes.
  • pgsql-matrix.yml now install matrixdb (Greenplum 7) on prepared nodes.

Software Upgrade

  • PostgreSQL 14.2
  • PostGIS 3.2
  • TimescaleDB 2.6
  • Patroni 2.1.3 (Prometheus Metrics + Failover Slots)
  • HAProxy 2.5.5 (Fix stats error, more metrics)
  • PG Exporter 0.4.1 (Timeout Parameters, and)
  • Grafana 8.4.4
  • Prometheus 2.33.4
  • Greenplum 6.19.4 / MatrixDB 4.4.0
  • Loki are now shipped as rpm packages instead of zip archives

Bug Fix

  • Remove consul dependency for patroni , which makes it much more easier to migrate to a new consul cluster
  • Fix prometheus bin/new scripts default data dir path : /export/prometheus to /data/prometheus
  • Fix typos and tasks
  • Add restart seconds to vip-manager systemd service

API Changes

New Variable

  • node_cluster: Identity variable for node cluster
  • nodename_overwrite: If set, nodename will be set to node’s hostname
  • nodename_exchange : exchange node hostname (in /etc/hosts) among play hosts
  • node_dns_hosts_extra : extra static dns records which can be easily overwritten by single instance/cluster
  • patroni_enabled: if disabled, postgres & patroni bootstrap will not be performed during role postgres
  • pgbouncer_enabled : if disabled, pgbouncer will not be launched during role postgres
  • pg_exporter_params: extra url parameters for pg_exporter when generating monitor target url.
  • pg_provision: bool var to indicate whether perform provision part of role postgres (template, db,user)
  • no_cmdb: cli args for infra.yml and infra-demo.yml playbook which will not create cmdb on meta node.
MD5 (app.tgz) = f887313767982b31a2b094e5589a75ea
MD5 (matrix.tgz) = 3d063437c482d94bd7e35df1a08bbc84
MD5 (pigsty.tgz) = e143b88ebea1474f9ebaffddc6072c49
MD5 (pkg.tgz) = 73e8f5ce995b1f1760cb63c1904fb91b

v1.4.1

Routine bug fix / Docker Support / English Docs

Now docker is enabled on meta node by default. You can launch ton’s of SaaS with it

English document is available now.

Bug Fix

Last modified 2024-02-29: update content (34b2b75)