serversdown
1fff8179d6
- Created a comprehensive runbook (`wedged_unit_recovery.md`) detailing the recovery process for units stuck in a call-home loop, including symptoms, recovery steps, and explanations of the failure mode. - Added `blind_stop.sh` script to send stop-monitoring commands in a tight loop for unresponsive devices. - Introduced `rescue_device.sh` script to disable Auto Call Home and erase events from a busy device. - Implemented `slow_drip.sh` script to send stop-monitoring frames at a slow rate to prevent UART overrun. - Developed `spam_stop.sh` script to rapidly send stop-monitoring commands to a device. - Created `watch_unit.sh` script for passive monitoring of device reachability, logging results over time.
49 lines
1.7 KiB
Bash
Executable File
49 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Hammer a device with blind stop-monitoring sessions as fast as possible.
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# Single HTTP call kicks off the burst inside SFM (no per-attempt HTTP
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# overhead). Default: 10 seconds, ~500 ms per attempt = ~20 attempts/sec.
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#
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# Usage:
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# ./spam_stop.sh <host> [tcp_port] [duration_s]
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#
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# Examples:
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# ./spam_stop.sh 166.246.130.1 # 10s burst
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# ./spam_stop.sh 166.246.130.1 9034 30 # 30s burst
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# DURATION=60 CONNECT_TIMEOUT=0.2 ./spam_stop.sh 166.246.130.1
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#
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# Env:
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# SFM_BASE_URL Default: http://localhost:8200 (SFM direct).
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# Set to http://localhost:8001/api/sfm to route through
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# Terra-View's proxy — but note the proxy has a 60s
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# timeout, so long bursts need direct mode.
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# DURATION Default: 10 (seconds; arg 3 overrides)
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# CONNECT_TIMEOUT Default: 0.5 (seconds)
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# REPEAT Default: 3 (stop frames per TCP session)
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set -u
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host="${1:-}"
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tcp_port="${2:-9034}"
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duration="${3:-${DURATION:-10}}"
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if [[ -z "$host" ]]; then
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echo "usage: $0 <host> [tcp_port] [duration_s]" >&2
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exit 2
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fi
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base="${SFM_BASE_URL:-http://localhost:8200}"
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connect_timeout="${CONNECT_TIMEOUT:-0.5}"
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repeat="${REPEAT:-3}"
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url="${base}/device/stop_monitoring_spam?host=${host}&tcp_port=${tcp_port}&duration_s=${duration}&connect_timeout=${connect_timeout}&repeat=${repeat}"
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echo "spam_stop: target ${host}:${tcp_port} duration=${duration}s connect_timeout=${connect_timeout}s repeat=${repeat}"
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echo "spam_stop: POST ${url}"
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echo
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# Give curl enough slack to wait out the duration plus a buffer
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max_time=$(awk -v d="$duration" 'BEGIN { printf "%d", d + 10 }')
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curl -sS --max-time "$max_time" -X POST "$url"
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echo
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