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
36 lines
1.7 KiB
Bash
Executable File
36 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# diag.sh - diagnostic commands run on a host via SSH wrapper.
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HOST="$1"
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SSH_OPTS=(-o BatchMode=yes -o ConnectTimeout=8 -o StrictHostKeyChecking=accept-new)
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echo "===== 1. storage.cfg NFS stanzas (exact content) ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'grep -A 8 "^nfs: D2" /etc/pve/storage.cfg'
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echo ""
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echo "===== 2. Try manual NFS mount with nconnect=4 ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'mount -t nfs -o nconnect=4,noatime,rsize=1048576,wsize=1048576,hard,proto=tcp pfv-tsys4-nfs-stor:/mnt/tsys4/D2 /mnt/pve/D2 2>&1; echo "exit=$?"'
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echo ""
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echo "===== 3. Try manual NFS mount WITHOUT nconnect ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'mount -t nfs -o noatime,rsize=1048576,wsize=1048576,hard,proto=tcp pfv-tsys4-nfs-stor:/mnt/tsys4/D2 /mnt/pve/D2 2>&1; echo "exit=$?"'
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echo ""
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echo "===== 4. NFS kernel version / module ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'cat /proc/fs/nfsfs/version 2>/dev/null; echo "---"; modinfo nfs 2>/dev/null | grep -E "^(filename|version|description)" | head -5'
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echo ""
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echo "===== 5. mount.nfs version ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'mount.nfs --version 2>&1; echo "---"; dpkg -l nfs-common 2>/dev/null | tail -2'
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echo ""
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echo "===== 6. /etc/network/interfaces bond0 stanza (exact bytes) ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'sed -n "/^auto bond0/,/^$/p" /etc/network/interfaces | cat -A'
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echo ""
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echo "===== 7. Current bond0 running hash policy ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'cat /proc/net/bonding/bond0 | head -5'
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echo ""
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echo "===== 8. xmit_hash_policy sysfs file ====="
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ssh "${SSH_OPTS[@]}" "root@$HOST" 'cat /sys/class/net/bond0/bonding/xmit_hash_policy 2>/dev/null; echo "---"; ls /sys/class/net/bond0/bonding/ 2>/dev/null'
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