final wokring version

Author: Yannic Nevado Hidalgo

cassandra-statefulset/cassandra-statefulset.yaml

@@ -10,4 +10,4 @@ data:
       protocol: layer2
       # ip addr range
       addresses:
-      - 192.168.224.106-192.168.224.200
+#      - 192.168.000.000-192.168.000.000

elk-stack-config/filebeat.yml

@@ -95,7 +95,6 @@ bootstrap:
     pg_hba:
     - hostssl all all 0.0.0.0/0 scram-sha-256
     - host    all all 0.0.0.0/0 scram-sha-256
-    - host    all zalando 192.168.232.109/24 scram-sha-256
     - local   all             all                                   trust
     - hostssl all             +zalandos    127.0.0.1/32       pam
     - host    all             all                127.0.0.1/32       md5

loadbalancer/metallb-configmap.yaml

@@ -1,32 +1,33 @@
-$ psql -d postgres -U postgres -c "DROP DATABASE IF EXISTS test"
-
-# Testdatenbank mti dem Namen test_container erstellen
-$ psql -d postgres -U postgres -c "CREATE DATABASE test"
+# create the test database with the name "test"
+psql -d postgres -U postgres -c "CREATE DATABASE test"
 
 # -i = initialize 
-# -s = scale default database value(16MB) * 50 = 800MB
+# -s = scale default database value(16MB) * s
 # time = measure the time for executing the command
-# -i = 100 ~ 32min; -i = 200 ~ 62min
-$ time pgbench -i -s 50 test -U postgres (~18min.)
-
-table                   # of rows
----------------------------------
-pgbench_branches        50
-pgbench_tellers         500
-pgbench_accounts        5.000.000
+pgbench -i -s 50 test -U postgres
+
+# from pgbench created tables
+#tablename              number of rows
+--------------------------------------
+pgbench_branches        s
+pgbench_tellers         s*10
+pgbench_accounts        s*100.000
 pgbench_history         0
 
+# c = number of client connections to simulate
+# j = number of worker processes for pgbench
+# t = tps per client session => c*t
+pgbench -c 10 -j 2 -t 10000 test -U postgres
 
-# c = clients -> number of clients to connect with
-# j = threads -> number of worker processes for pgbench
-# t = transactions -> number of transactions per client session => 10*100.000 = 1.000.000 transactions
-# -t 100000 -> nach 42min abgebrochen -> ram const stabil unter req; cpu const. über req
-# -t 10000 -> number of transactions per client session => 10*10.000 = 100.000 transactions
-$ time pgbench -c 10 -j 2 -t 10000 test -U postgres
+# read-only test
+# create the test database with the name "test_read"
+psql -d postgres -U postgres -c "CREATE DATABASE test_read"
 
+# -S = use built in select only script
+pgbench -h <Standby LoadBalancer IP> -p 5432 -d -c 50 -j 10 -t 10000 -S test_read -U postgres
 
-# kill database with to much ressourcen
-$ pgbench -c 90 -j 10 -t 100000 test -U postgres
+# kill database with heavy resource usage
+pgbench -c 90 -j 10 -t 100000 test -U postgres
 
 # get size of database
-SELECT pg_size_pretty( pg_database_size('test') );
+SELECT pg_size_pretty( pg_database_size('databasename') );

patroni/patroni-master.yml renamed to patroni/custom-patroni.yml

@@ -16,10 +16,4 @@ kubectl delete postgresql postgres-instance -n zalando-postgres
 
 sleep 3
 
-kubectl delete service postgres-instance postgres-instance-config postgres-instance-repl -n zalando-postgres
-
-# sleep 3
-
-# kubectl delete poddisruptionbudgets postgres-acid-minimal-cluster-pdb -n zalando-postgres
-
-# kubectl delete pvc pgdata-acid-minimal-cluster-0 pgdata-acid-minimal-cluster-1 pgdata-acid-minimal-cluster-2 -n zalando-postgres
+kubectl delete service postgres-instance postgres-instance-config postgres-instance-repl -n zalando-postgres