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https://github.com/redis/go-redis.git
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b6d7cdbd84
* add disable maintnotifications example * add 8.4-RC1-pre * println -> printf for linter * address jit comment Fix broken initialization of idle connections optimize push notif wip wip wip wip
110 lines
3.0 KiB
Bash
Executable File
110 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Script to check Redis cluster health on ports 16600-16605
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echo "=== Redis Cluster Health Check ==="
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echo ""
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# Check if redis-cli is available
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if ! command -v redis-cli &> /dev/null; then
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echo "❌ redis-cli not found. Please install redis-tools."
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exit 1
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fi
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# Check each port
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echo "Checking connectivity to cluster nodes..."
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REACHABLE_PORTS=()
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for port in 16600 16601 16602 16603 16604 16605; do
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if redis-cli -p $port ping &> /dev/null; then
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echo "✓ Port $port is reachable"
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REACHABLE_PORTS+=($port)
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else
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echo "✗ Port $port is NOT reachable"
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fi
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done
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echo ""
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if [ ${#REACHABLE_PORTS[@]} -eq 0 ]; then
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echo "❌ No cluster nodes are reachable!"
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echo ""
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echo "Solutions:"
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echo "1. Check if Docker containers are running:"
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echo " docker ps | grep redis"
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echo ""
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echo "2. Start the cluster:"
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echo " docker-compose up -d"
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exit 1
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fi
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# Check cluster state on first reachable port
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PORT=${REACHABLE_PORTS[0]}
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echo "Checking cluster state on port $PORT..."
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echo ""
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CLUSTER_STATE=$(redis-cli -p $PORT CLUSTER INFO 2>/dev/null | grep cluster_state | cut -d: -f2 | tr -d '\r')
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if [ "$CLUSTER_STATE" = "ok" ]; then
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echo "✓ Cluster state: OK"
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else
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echo "❌ Cluster state: $CLUSTER_STATE"
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echo ""
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echo "The cluster is not in OK state. This causes 'CLUSTERDOWN Hash slot not served' errors."
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echo ""
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echo "Cluster Info:"
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redis-cli -p $PORT CLUSTER INFO
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echo ""
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echo "Cluster Nodes:"
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redis-cli -p $PORT CLUSTER NODES
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echo ""
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echo "Solutions:"
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echo ""
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echo "1. Check if all hash slots are assigned:"
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echo " redis-cli -p $PORT CLUSTER SLOTS"
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echo ""
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echo "2. If cluster was never initialized, create it:"
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echo " redis-cli --cluster create \\"
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echo " localhost:16600 localhost:16601 localhost:16602 \\"
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echo " localhost:16603 localhost:16604 localhost:16605 \\"
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echo " --cluster-replicas 1 --cluster-yes"
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echo ""
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echo "3. If cluster is in failed state, try fixing it:"
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echo " redis-cli --cluster fix localhost:$PORT"
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echo ""
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echo "4. If nothing works, reset and recreate:"
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echo " docker-compose down -v"
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echo " docker-compose up -d"
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echo " # Wait a few seconds, then create cluster"
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exit 1
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fi
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# Check slot coverage
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echo ""
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echo "Checking hash slot coverage..."
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SLOTS_OUTPUT=$(redis-cli -p $PORT CLUSTER SLOTS 2>/dev/null)
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if [ -z "$SLOTS_OUTPUT" ]; then
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echo "❌ No hash slots assigned!"
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echo ""
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echo "The cluster needs to be initialized. Run:"
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echo " redis-cli --cluster create \\"
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echo " localhost:16600 localhost:16601 localhost:16602 \\"
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echo " localhost:16603 localhost:16604 localhost:16605 \\"
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echo " --cluster-replicas 1 --cluster-yes"
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exit 1
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else
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echo "✓ Hash slots are assigned"
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fi
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# Show cluster nodes
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echo ""
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echo "Cluster Nodes:"
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redis-cli -p $PORT CLUSTER NODES
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echo ""
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echo "=== Cluster is healthy and ready! ==="
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echo ""
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echo "You can now run the example:"
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echo " ./run.sh basic"
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