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Jepsen testing (NLnet task 3 subtask 1) #544

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lx merged 41 commits from jepsen into main 2024-01-11 10:52:13 +00:00
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1 changed files with 33 additions and 24 deletions
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script/jepsen.garage/src/jepsen/garage/nemesis.clj
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@ -32,9 +32,12 @@
[test]
(let [layout-show (c/on (jepsen/primary test) (c/exec grg/binary :layout :show))
[_ layout-next-version] (re-find #"apply --version (\d+)\n" layout-show)]
(info "layout show: " layout-show "; next-version: " layout-next-version)
(c/on (jepsen/primary test)
(c/exec grg/binary :layout :apply :--version layout-next-version))))
(if layout-next-version
(do
(info "layout show: " layout-show "; next-version: " layout-next-version)
(c/on (jepsen/primary test)
(c/exec grg/binary :layout :apply :--version layout-next-version)))
(info "no layout changes to apply"))))
(defn reconfigure-subset
"Reconfigure cluster with only a subset of nodes"
@ -65,22 +68,28 @@
; ---- nemesis scenari ----
(defn nemesis-op
"A generator for a single nemesis operation"
[op]
(fn [_ _] {:type :info, :f op}))
(defn scenario-c
"Clock scramble scenario"
[opts]
{:generator (cycle [(gen/sleep 5)
{:type :info, :f :clock-scramble}])
{:generator (->>
(nemesis-op :clock-scramble)
(gen/stagger 5))
:nemesis (nemesis/compose
{{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)})})
{{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)})})
(defn scenario-cp
"Clock scramble + partition scenario"
[opts]
{:generator (->>
(gen/mix [{:type :info, :f :clock-scramble}
{:type :info, :f :partition-stop}
{:type :info, :f :partition-start}])
(gen/stagger 3))
(gen/mix [(nemesis-op :clock-scramble)
(nemesis-op :partition-stop)
(nemesis-op :partition-start)])
(gen/stagger 5))
:final-generator (gen/once {:type :info, :f :partition-stop})
:nemesis (nemesis/compose
{{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)
@ -91,9 +100,9 @@
"Cluster reconfiguration scenario"
[opts]
{:generator (->>
(gen/mix [{:type :info, :f :reconfigure-start}
{:type :info, :f :reconfigure-stop}])
(gen/stagger 3))
(gen/mix [(nemesis-op :reconfigure-start)
(nemesis-op :reconfigure-stop)])
(gen/stagger 5))
:nemesis (nemesis/compose
{{:reconfigure-start :start
:reconfigure-stop :stop} (reconfigure-subset 3)})})
@ -102,11 +111,11 @@
"Partition + cluster reconfiguration scenario"
[opts]
{:generator (->>
(gen/mix [{:type :info, :f :partition-start}
{:type :info, :f :partition-stop}
{:type :info, :f :reconfigure-start}
{:type :info, :f :reconfigure-stop}])
(gen/stagger 3))
(gen/mix [(nemesis-op :partition-start)
(nemesis-op :partition-stop)
(nemesis-op :reconfigure-start)
(nemesis-op :reconfigure-stop)])
(gen/stagger 5))
:final-generator (gen/once {:type :info, :f :partition-stop})
:nemesis (nemesis/compose
{{:partition-start :start
@ -118,12 +127,12 @@
"Clock scramble + partition + cluster reconfiguration scenario"
[opts]
{:generator (->>
(gen/mix [{:type :info, :f :clock-scramble}
{:type :info, :f :partition-start}
{:type :info, :f :partition-stop}
{:type :info, :f :reconfigure-start}
{:type :info, :f :reconfigure-stop}])
(gen/stagger 3))
(gen/mix [(nemesis-op :clock-scramble)
(nemesis-op :partition-start)
(nemesis-op :partition-stop)
(nemesis-op :reconfigure-start)
(nemesis-op :reconfigure-stop)])
(gen/stagger 5))
:final-generator (gen/once {:type :info, :f :partition-stop})
:nemesis (nemesis/compose
{{:clock-scramble :scramble} (nemesis/clock-scrambler 20.0)