mrcharles
422999bf3c
Performance optimization engagement for a 7-host Proxmox R&D cluster.
Captures the accumulated work across host tuning, network analysis,
fleet assessment, and kubernetes architecture planning.
Contents:
- Host-side tunings (scripts/): CPU governor, swappiness, BBR, NFS
nconnect, tuned profiles -- complete on 5 of 7 hosts
- Validation + benchmarking scripts: iperf matrix, bond/NFS fixes
- Collected host data (returned-logs/): check.sh output from all 7
hosts + iperf results, including newly-validated pfv-tsys9
- AGENTS.md: operating context for AI agents
- PROJECT.md: board-ready fleet assessment with VM placement and
storage redundancy analysis (40 VMs across 7 hosts)
- K8S.md: kubernetes architecture deep-dive covering cnode/wnode
distribution, StorageClass design, and ETL/HPC workload planning
💘 Generated with Crush
Assisted-by: Crush:glm-5.2
129 lines
5.3 KiB
Bash
Executable File
129 lines
5.3 KiB
Bash
Executable File
#!/bin/bash
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# finish-host.sh - applies ALL remaining changes to a host and verifies.
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#
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# Steps:
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# 1. Start all VMs (triggers NFS lazy-mount)
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# 2. Wait for NFS mounts to appear
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# 3. Verify NFS nconnect=4 + noatime
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# 4. Apply bond0 xmit_hash_policy=layer3+4
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# 5. Full end-to-end verification
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#
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# Usage: bash finish-host.sh <host> [--apply]
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# Default is dry-run (starts VMs + shows what bond change would do, but doesn't edit interfaces)
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set -uo pipefail
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HOST="${1:-}"
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MODE="${2:-dryrun}"
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[ "$MODE" = "--apply" ] && MODE="apply" || MODE="dryrun"
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if [ -z "$HOST" ]; then
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echo "Usage: $0 <host> [--apply]"
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exit 1
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fi
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SSH_OPTS=(-o BatchMode=yes -o ConnectTimeout=8 -o ServerAliveInterval=10 -o StrictHostKeyChecking=accept-new)
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SCRIPT_DIR="/home/reachableceo/projects/perfopt/scripts"
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echo "==================================================================="
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echo " finish-host.sh — $HOST (mode: $MODE)"
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echo "==================================================================="
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echo ""
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# =========================================================================
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# STEP 1: Start all VMs
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# =========================================================================
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echo "=== STEP 1: Start all VMs on $HOST ==="
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# Get list of all VMs (not just stopped — start is idempotent)
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vm_list=$(ssh "${SSH_OPTS[@]}" "root@$HOST" 'qm list 2>/dev/null | awk "NR>1{print \$1}"')
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for vmid in $vm_list; do
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status=$(ssh "${SSH_OPTS[@]}" "root@$HOST" "qm status $vmid 2>/dev/null | awk '{print \$2}'")
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if [ "$status" != "running" ]; then
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echo " Starting VM $vmid..."
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ssh "${SSH_OPTS[@]}" "root@$HOST" "qm start $vmid" 2>&1 | sed 's/^/ /'
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else
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echo " VM $vmid already running"
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fi
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done
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echo ""
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echo " Waiting 15s for VMs to boot and trigger NFS mounts..."
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sleep 15
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echo ""
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echo "--- VM status after start ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'qm list 2>/dev/null'
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# =========================================================================
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# STEP 2: Verify NFS mounts came back with nconnect=4
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# =========================================================================
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echo ""
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echo "=== STEP 2: Verify NFS mounts with nconnect=4 ==="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'nfsstat -m 2>/dev/null' | head -30
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echo ""
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echo "--- NFS TCP connections to :2049 ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'ss -tn state established "( dport = :2049 )" 2>/dev/null'
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conn_count=$(ssh "${SSH_OPTS[@]}" "root@$HOST" 'ss -tn state established "( dport = :2049 )" 2>/dev/null | tail -n +2 | wc -l')
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echo " Total NFS TCP connections: $conn_count"
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# =========================================================================
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# STEP 3: Apply bond0 hash policy
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# =========================================================================
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echo ""
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echo "=== STEP 3: Apply bond0 xmit_hash_policy=layer3+4 (mode: $MODE) ==="
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# Upload the bond hash script
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scp "${SSH_OPTS[@]}" "$SCRIPT_DIR/apply-bond-hash.sh" "root@$HOST:/root/apply-bond-hash.sh" >/dev/null 2>&1
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if [ "$MODE" = "apply" ]; then
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'chmod +x /root/apply-bond-hash.sh && bash /root/apply-bond-hash.sh --apply' 2>&1
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else
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'chmod +x /root/apply-bond-hash.sh && bash /root/apply-bond-hash.sh' 2>&1
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fi
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# =========================================================================
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# STEP 4: Full verification
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# =========================================================================
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echo ""
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echo "=== STEP 4: Full end-to-end verification ==="
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echo ""
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echo "--- Uptime ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'uptime'
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echo ""
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echo "--- CPU governor ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 2>/dev/null || echo "(no cpufreq driver)"'
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echo ""
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echo "--- vm.swappiness ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'sysctl vm.swappiness'
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echo ""
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echo "--- TCP BBR ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'sysctl net.ipv4.tcp_congestion_control net.core.default_qdisc'
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echo ""
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echo "--- tuned profile ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'tuned-adm active 2>/dev/null'
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echo ""
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echo "--- bond0 hash policy + LACP state ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'cat /proc/net/bonding/bond0 2>/dev/null | head -25'
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echo ""
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echo "--- NFS mount options (first 3 mounts) ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'nfsstat -m 2>/dev/null | head -24'
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echo ""
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echo "--- NFS TCP connections (expect 4 per server × 2 servers = 8) ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'ss -tn state established "( dport = :2049 )" 2>/dev/null'
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nfs_conns=$(ssh "${SSH_OPTS[@]}" "root@$HOST" 'ss -tn state established "( dport = :2049 )" 2>/dev/null | tail -n +2 | wc -l')
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echo " Count: $nfs_conns"
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echo ""
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echo "--- VMs running ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'qm list 2>/dev/null'
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echo ""
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echo "--- Failed services ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'systemctl --failed --no-legend 2>/dev/null | head -10'
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echo ""
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echo "--- Network interfaces (speed/duplex/mtu) ---"
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'for ifc in bond0 nic0 nic1 nic2 vmbr0 datanet; do [ -d "/sys/class/net/$ifc" ] && printf "%-12s speed=%-8s duplex=%-8s mtu=%s\n" "$ifc" "$(cat /sys/class/net/$ifc/speed 2>/dev/null)" "$(cat /sys/class/net/$ifc/duplex 2>/dev/null)" "$(cat /sys/class/net/$ifc/mtu 2>/dev/null)"; done'
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echo ""
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echo "==================================================================="
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echo " COMPLETE — $HOST"
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echo "==================================================================="
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