fix(harness-scenarios): V-G1/X-M2 inject with tc qdisc replace instead of add

2026-10-18 m2 두 번째 런에서 X-M2 복원 SSH 가 connection reset 으로 실패해 legacy-p787 에
netem loss 50% qdisc 가 남았고, 이후 14런의 V-G1·X-M2 주입이 "Exclusivity flag on" 으로
전부 실패했다. replace 는 root qdisc 가 남아 있어도 덮어쓰므로 주입이 막히지 않는다
(복원은 그대로 del). 남은 qdisc 는 수동으로 제거했다(16:06 UTC).
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seon committed 2026-10-19 01:07:38 +09:00
1 parent 2fd39a65df
commit 840b14c20c
2 files changed
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@@ -12,7 +12,7 @@ description: tc qdisc add dev ens4 root netem delay 400ms on the legacy instance
inject: inject:
method: ssh method: ssh
host: legacy:busy host: legacy:busy
command: sudo tc qdisc add dev ens4 root netem delay 400ms command: sudo tc qdisc replace dev ens4 root netem delay 400ms
revert: revert:
method: ssh method: ssh
host: legacy:busy host: legacy:busy
+1 -1
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@@ -9,7 +9,7 @@ description: tc netem loss 50% for 90s on legacy instance 0
inject: inject:
method: ssh method: ssh
host: legacy:0 host: legacy:0
command: sudo tc qdisc add dev ens4 root netem loss 50% command: sudo tc qdisc replace dev ens4 root netem loss 50%
wait_s: 90 wait_s: 90
revert: revert:
method: ssh method: ssh