Short network drop makes the api crash #660

Closed @x0152 opened 2026-01-28 16:31 UTC 0 comments Updated 2026-02-06 23:46 UTC

If chain node is unreachable even for short period, the API can crash:

2026/01/28 14:01:30 ERROR [training-task-assigner] Failed to query chain status err="post failed: Post \"http://genesis-node:26657\": dial tcp: lookup genesis-node on 127.0.0.11:53: no such host"
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x140 pc=0x42d18e2]

goroutine 10 [running]:
decentralized-api/training.(*Assigner).tryClaimingTaskToAssign(0xc0017a8090)
  /app/decentralized-api/training/assigner.go:74 +0xc2
decentralized-api/training.(*Assigner).claimTasksForAssignment(0xc0017a8090)
  /app/decentralized-api/training/assigner.go:55 +0x10c
created by decentralized-api/training.NewAssigner in goroutine 1
  /app/decentralized-api/training/assigner.go:41 +0xd8

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