simplification of database hammer code base

docker/docker-compose-manual-binaries.yml

@@ -120,12 +120,15 @@ services:
     volumes:
       - ./run_database_hammer.sh:/opt/run_database_hammer.sh:Z
     entrypoint: sh
-    replicas: 3
+    deploy:
+      mode: replicated
+      replicas: 1
     command:
       - /opt/run_database_hammer.sh
     depends_on:
-      - nwaku_postgres
-      - nwaku_sqlite
+      - postgres
+    networks:
+      - simulation
 
   waku-store-query-generator:
     image: ivansete/waku-store-request-maker:19e645

docker/run_database_hammer.sh

@@ -3,23 +3,20 @@
 ## This script is aimed to generate traffic to the database and simulate
 ## simulate multiple Waku nodes connected to the same database.
 
-## Install the `dig` command
-apk --no-cache add bind-tools
-
 ## Install postgresql-client for psql command
 apk --no-cache add postgresql-client
 
 ## The port numbers and host names are defined in the 'docker-compose.yml' file
-nwaku-postgres-IP=$(dig +short postgres)
-target-postgres="http://${nwaku-postgres-IP}:5432"
 
-echo "This is publisher: ${target-postgres}; ${target_sqlite}"
+echo "This is database hammer"
+
+export PGPASSWORD=test123
+QUERY_LAST_FIVE_MINUTES=$(echo 'SELECT * FROM messages ORDER BY storedAt DESC LIMIT 100;')
 
-query-last-five-minutes="SELECT storedAt, contentTopic, payload, pubsubTopic, version, timestamp, id FROM messages WHERE storedAt >= EXTRACT(EPOCH FROM (NOW() - INTERVAL '5 minutes')) * 1000 ORDER BY storedAt DESC;"
 while true
 do
   echo "Before making query"
-  psql -h ${nwaku-postgres-IP} -U postgres -W test123 -U postgres -c "${query-last-five-minutes}"
+  psql -h postgres -p 5432 -U postgres -U postgres -w -c "${QUERY_LAST_FIVE_MINUTES}"
 
   sleep 10
 done