feat: managed to retrieve metric-by-metric from Redis in real timeHEADmaster

1 files changed, 19 insertions, 0 deletions

diff --git a/shell_scripts/useful_commands.sh b/shell_scripts/useful_commands.sh
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+++ b/shell_scripts/useful_commands.sh
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+#!/bin/bash
+
+doas su postgres
+# In this project we only use the ``opendc'' database.
+psql -d opendc
+
+# Queries
+# Selects everything from the topic which Kafka writes to.
+SELECT * FROM postgres_topic;
+
+# Redis CLI
+# Connect to Redis
+redis-cli -h localhost -p 6379
+# Very useful tutorial https://redis.io/docs/latest/develop/data-types/streams/
+# https://redis.io/docs/latest/develop/tools/cli/
+# Returns all items in the Redis stream
+XRANGE postgres_topic - +
+XTRIM postgres_topic MAXLEN 0
+# https://codesignal.com/learn/courses/mastering-redis-for-high-performance-applications-with-java-and-jedis-1/lessons/redis-streams-with-java