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proxmox/reports/NEXT_STEPS_COMPLETE_20260105.md
defiQUG cb47cce074 Complete markdown files cleanup and organization 
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2026-01-06 01:46:25 -08:00

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Next Steps Completion — RPC Stability Hardening

Date: 2026-01-05

What we found

1) Storage node restriction mismatch (startup blocker)

  • VMIDs 2400–2402 and 2500–2508 (RPC nodes) use local-lvm:* as rootfs.
  • The Proxmox node ml110 is hosting these VMIDs, but local-lvm in /etc/pve/storage.cfg was restricted to r630-01 only.
  • Result: containers could fail to start on ml110 with:
    • storage 'local-lvm' is not available on node 'ml110'

2) Besu heap oversizing (runtime instability)

  • VMIDs 2506–2508 had 4GB memory but BESU_OPTS=-Xmx8g -Xms8g → high risk of swap/IO thrash.
  • VMID 2505 had the same symptom earlier and already caused a failure.

Actions taken

Storage fix (cluster config)

  • Updated /etc/pve/storage.cfg on ml110 to allow local-lvm on ml110.
  • pvesm status now shows local-lvm active on ml110.

RPC stability fix (node configs)

  • VMID 2505:
    • Container resources: memory 6144MB, swap 1024MB
    • Besu heap: BESU_OPTS=-Xms2g -Xmx4g
  • VMIDs 2506–2508:
    • Besu heap right-sized to: BESU_OPTS=-Xms1g -Xmx2g
    • Restarted besu-rpc and confirmed listeners :8545/:8546/:9545

Verification

  • Full RPC fleet retest: 12/12 reachable + authorized, block spread Δ0
    • Report: reports/rpc_nodes_test_20260105_064904.md

New reusable scripts added

  • scripts/audit-proxmox-rpc-storage.sh
  • scripts/audit-proxmox-rpc-besu-heap.sh
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