jepsen: set1 and set2 don't fail anymore ??
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@ -69,9 +69,9 @@ Results with timestamp patch (`--patch tsfix2`):
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- No failures with clock-scramble nemesis + partition nemesis (`--scenario cp`).
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This proves that `tsfix2` (PR#543) does improve consistency.
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- **Fails with layout reconfiguration nemesis** (`--scenario r`)
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(TODO: note down the run id of a failed run)
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(TODO: test more and investigate).
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- **Fails with layout reconfiguration nemesis** (`--scenario r`).
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Example of a failed run: `garage reg2/20231024T120806.899+0200`.
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TODO: investigate.
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This is the failure mode we are looking for and trying to fix for NLnet task 3.
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@ -83,12 +83,11 @@ Results:
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- For now, no failures with clock-scramble nemesis + partition nemesis -> TODO long test run
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- Failures were not yet achieved with only the layout reconfiguration nemesis, although they should be.
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- Does not seem to fail with only the layout reconfiguation nemesis (>20 runs), although theoretically it could
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- **Fails with partition + layout reconfiguration nemesis** (`--scenario pr`)
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(TODO: note down the run id of a failed run)
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(TODO: test more and investigate).
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This is the failure mode we are looking for and trying to fix for NLnet task 3.
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- Does not seem to fail with the layout reconfiguation + partition nemesis (<10 runs), although theoretically it could
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TODO: make it fail!!!
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### Set, continuous test (interspersed reads and writes)
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@ -99,10 +98,9 @@ Results:
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- For now, no failures with clock-scramble nemesis + partition nemesis -> TODO long test run
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- Failures were not yet achieved with only the layout reconfiguration nemesis, although they should be.
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- Does not seem to fail with the clock scrambler + partition + layout reconfiguation nemesis (>10 runs), although theoretically it could
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- TODO: failures should be achieved with `--scenario pr`? Even with 4 or 5 consecutive test runs, no failures were achieved, why?
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(TODO: note down the run id of a failed run)
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TODO: make it fail!!!
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## Investigating (and fixing) errors
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@ -26,7 +26,8 @@
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{"c" grgNemesis/scenario-c
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"cp" grgNemesis/scenario-cp
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"r" grgNemesis/scenario-r
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"pr" grgNemesis/scenario-pr})
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"pr" grgNemesis/scenario-pr
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"cpr" grgNemesis/scenario-cpr})
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(def patches
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"A map of patch names to Garage builds"
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@ -76,30 +76,24 @@
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(defn scenario-cp
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"Clock scramble + partition scenario"
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[opts]
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{:generator (cycle [(gen/sleep 5)
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{:type :info, :f :partition-start}
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(gen/sleep 5)
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{:type :info, :f :clock-scramble}
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(gen/sleep 5)
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{:type :info, :f :partition-stop}
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(gen/sleep 5)
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{:type :info, :f :clock-scramble}])
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{:generator (->>
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(gen/mix [{:type :info, :f :clock-scramble}
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{:type :info, :f :partition-stop}
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{:type :info, :f :partition-start}])
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(gen/stagger 3))
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:final-generator (gen/once {:type :info, :f :partition-stop})
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:nemesis (nemesis/compose
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{{:partition-start :start
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:partition-stop :stop} (nemesis/partition-random-halves)
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{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)})})
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{{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)
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{:partition-start :start
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:partition-stop :stop} (nemesis/partition-random-halves)})})
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(defn scenario-r
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"Cluster reconfiguration scenario"
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[opts]
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{:generator (cycle [(gen/sleep 5)
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{:type :info, :f :reconfigure-start}
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(gen/sleep 5)
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{:type :info, :f :reconfigure-start}
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(gen/sleep 5)
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{:type :info, :f :reconfigure-stop}])
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:final-generator (gen/once {:type :info, :f :reconfigure-stop})
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{:generator (->>
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(gen/mix [{:type :info, :f :reconfigure-start}
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{:type :info, :f :reconfigure-stop}])
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(gen/stagger 3))
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:nemesis (nemesis/compose
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{{:reconfigure-start :start
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:reconfigure-stop :stop} (reconfigure-subset 3)})})
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@ -107,19 +101,33 @@
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(defn scenario-pr
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"Partition + cluster reconfiguration scenario"
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[opts]
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{:generator (cycle [(gen/sleep 3)
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{:type :info, :f :reconfigure-start}
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(gen/sleep 3)
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{:type :info, :f :partition-start}
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(gen/sleep 3)
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{:type :info, :f :reconfigure-start}
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(gen/sleep 3)
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{:type :info, :f :partition-stop}
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(gen/sleep 3)
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{:type :info, :f :reconfigure-stop}])
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{:generator (->>
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(gen/mix [{:type :info, :f :partition-start}
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{:type :info, :f :partition-stop}
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{:type :info, :f :reconfigure-start}
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{:type :info, :f :reconfigure-stop}])
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(gen/stagger 3))
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:final-generator (gen/once {:type :info, :f :partition-stop})
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:nemesis (nemesis/compose
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{{:partition-start :start
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:partition-stop :stop} (nemesis/partition-random-halves)
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{:reconfigure-start :start
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:reconfigure-stop :stop} (reconfigure-subset 3)})})
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(defn scenario-cpr
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"Clock scramble + partition + cluster reconfiguration scenario"
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[opts]
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{:generator (->>
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(gen/mix [{:type :info, :f :clock-scramble}
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{:type :info, :f :partition-start}
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{:type :info, :f :partition-stop}
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{:type :info, :f :reconfigure-start}
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{:type :info, :f :reconfigure-stop}])
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(gen/stagger 3))
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:final-generator (gen/once {:type :info, :f :partition-stop})
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:nemesis (nemesis/compose
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{{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)
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{:partition-start :start
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:partition-stop :stop} (nemesis/partition-random-halves)
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{:reconfigure-start :start
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:reconfigure-stop :stop} (reconfigure-subset 3)})})
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