Merge pull request #4 from alexeyklyukin/feature/patroni

Feature/patroni
jberkus · Mar 30, 2017 · 6cce91e · 6cce91e
2 parents ec66729 + b291072
commit 6cce91e
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diff --git a/postgres_helm/elephant_patroni_live_demo.png b/postgres_helm/elephant_patroni_live_demo.png
diff --git a/postgres_helm/notes.txt b/postgres_helm/notes.txt
@@ -26,6 +26,18 @@ Helm
 
 Oleksii
 
+Patroni
+- RAFT is the fabric that holds together your PostgreSQL containers
+- External consistent key-value store instead of a built-in one:
+  advantages:
+   - PostgreSQL failure doesn't break the consensus
+   - use well-tested RAFT implementations (i.e. Etcd or Consul)
+  disadvantages:
+   - one needs to operate extra services
+Features:
+- synchronous vs asynchronous replication (consistency vs availability)
+- some parameters need to be kept in sync on all cluster nodes (max_connections)
+
 CitusDB
 - sharded postgres
 - query node, plus shard nodes
@@ -36,6 +48,7 @@ giant robot elephant from The Nantes Project
 elephant helm by Blank Williams
 robot elephant by Robert Chew
 robot with elephant by Mark F Stosiak
+stubborn elephant by Kolja Wilcke @01k
 
 
 

diff --git a/postgres_helm/postgres_helm.md b/postgres_helm/postgres_helm.md
@@ -118,39 +118,52 @@ Kubecon EU 2017
 ---
 
 ![spilo_diagram](spilo_diagram.svg)
+
 ---
 
-## Patroni customization
+## Extensibility
 
-* Callbacks (on_role_chage)
-* Custom replica creation
-* Pluggable consistency layers
+* callbacks
+* custom replica creation methods
+* pluggable consistent KV-stores
 
 ---
 
-## Not just autofailover
+## More than autofailover
 
-* Synchronous mode
-* Cascading replication
-* Dynamic configuration
+* synchronous mode
+* cascading replication
+* dynamic configuration
 
 ---
 
 ## Cluster maintenance
+
 * "Hands-off" mode
 * Scheduled failovers and restarts
 
 ---
 
-## Controlling Patroni
+## Interfaces
 
 * REST API
 * patronictl
 
 ---
 
+## Helm parameters
+
+ * cluster name
+ * Etcd host
+ * number of replicas
+ * credentials
+
+---
+
 #### Patroni Demo
 
+![patroni demo](elephant_patroni_live_demo.png)
+
 ---
 
 ![citus sharded](citus_sharded.png)
@@ -232,6 +245,14 @@ github.com/jberkus/atomicdb
 
 ---
 
+## Spilo demo:
+
+ * Helm Chart:
+ <br />github.com/alexeyklyukin/
+ <br />/charts/incubator/patroni
+
+---
+
 # ¿questions?
 
 .left-column-narrow[