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even without nemesis, s3 get/put/delete is not linearizable (is this normal?)
This commit is contained in:
Alex Auvolat
parent
70c1d3db46
commit
dc5245ce65
3 changed files with 64 additions and 37 deletions
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@ -1,22 +1,32 @@
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# jepsen.garage
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A Clojure library designed to ... well, that part is up to you.
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Jepsen checking of Garage consistency properties.
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## Usage
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FIXME
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Requirements:
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- vagrant
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- VirtualBox, configured so that nodes can take an IP in a private network `192.168.56.0/24`
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- a user that can create VirtualBox VMs
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- leiningen
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- gnuplot
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Set up VMs:
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```
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vagrant up
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```
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Run tests:
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```
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lein run test --nodes-file nodes.vagrant
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```
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## License
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Copyright © 2023 FIXME
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Copyright © 2023 Alex Auvolat
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This program and the accompanying materials are made available under the
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terms of the Eclipse Public License 2.0 which is available at
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http://www.eclipse.org/legal/epl-2.0.
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This Source Code may also be made available under the following Secondary
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Licenses when the conditions for such availability set forth in the Eclipse
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Public License, v. 2.0 are satisfied: GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or (at your
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option) any later version, with the GNU Classpath Exception which is available
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at https://www.gnu.org/software/classpath/license.html.
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terms of the GNU General Public License v3.0.
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@ -1,7 +1,8 @@
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{ pkgs ? import <nixpkgs> {} }:
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pkgs.mkShell {
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nativeBuildInputs = [
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pkgs.leiningen
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pkgs.vagrant
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nativeBuildInputs = with pkgs; [
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leiningen
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vagrant
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gnuplot
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];
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}
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@ -1,14 +1,18 @@
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(ns jepsen.garage
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(:require [clojure.tools.logging :refer :all]
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[clojure.string :as str]
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[jepsen [cli :as cli]
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[jepsen [checker :as checker]
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[cli :as cli]
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[client :as client]
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[control :as c]
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[db :as db]
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[generator :as gen]
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[nemesis :as nemesis]
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[tests :as tests]]
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[jepsen.checker.timeline :as timeline]
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[jepsen.control.util :as cu]
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[jepsen.os.debian :as debian]
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[knossos.model :as model]
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[slingshot.slingshot :refer [try+]]
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[amazonica.aws.s3 :as s3]
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[amazonica.aws.s3transfer :as s3transfer]))
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@ -82,9 +86,9 @@
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(log-files [_ test node]
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[logfile])))
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(defn op-get [_ _] {:type :invoke, :f :get-object, :value nil})
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(defn op-put [_ _] {:type :invoke, :f :put-object, :value (str (rand-int 50))})
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(defn op-del [_ _] {:type :invoke, :f :del-object, :value nil})
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(defn op-get [_ _] {:type :invoke, :f :read, :value nil})
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(defn op-put [_ _] {:type :invoke, :f :write, :value (str (rand-int 9))})
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(defn op-del [_ _] {:type :invoke, :f :write, :value nil})
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(defrecord Client [creds]
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client/Client
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@ -102,7 +106,7 @@
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(setup! [this test])
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(invoke! [this test op]
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(case (:f op)
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:get-object (try+
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:read (try+
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(let [value
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(-> (s3/get-object (:creds this) grg-bucket grg-object)
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:input-stream
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@ -110,21 +114,21 @@
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(assoc op :type :ok, :value value))
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(catch (re-find #"Key not found" (.getMessage %)) ex
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(assoc op :type :ok, :value nil)))
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:put-object
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(let [some-bytes (.getBytes (:value op) "UTF-8")
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bytes-stream (java.io.ByteArrayInputStream. some-bytes)]
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(s3/put-object (:creds this)
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:bucket-name grg-bucket
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:key grg-object
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:input-stream bytes-stream
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:metadata {:content-length (count some-bytes)})
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(assoc op :type :ok))
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:del-object
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(do
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(s3/delete-object (:creds this)
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:bucket-name grg-bucket
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:key grg-object)
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(assoc op :type :ok, :value nil))))
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:write
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(if (= (:value op) nil)
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(do
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(s3/delete-object (:creds this)
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:bucket-name grg-bucket
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:key grg-object)
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(assoc op :type :ok, :value nil))
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(let [some-bytes (.getBytes (:value op) "UTF-8")
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bytes-stream (java.io.ByteArrayInputStream. some-bytes)]
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(s3/put-object (:creds this)
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:bucket-name grg-bucket
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:key grg-object
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:input-stream bytes-stream
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:metadata {:content-length (count some-bytes)})
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(assoc op :type :ok)))))
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(teardown! [this test])
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(close! [this test]))
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@ -139,10 +143,22 @@
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:os debian/os
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:db (db "v0.8.2")
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:client (Client. nil)
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:nemesis (nemesis/partition-random-halves)
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:checker (checker/compose
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{:perf (checker/perf)
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:timeline (timeline/html)
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:linear (checker/linearizable
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{:model (model/register)
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:algorithm :linear})})
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:generator (->> (gen/mix [op-get op-put op-del])
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(gen/stagger 1)
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(gen/stagger 0.02)
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(gen/nemesis nil)
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(gen/time-limit 20))}))
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; (gen/nemesis
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; (cycle [(gen/sleep 5)
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; {:type :info, :f :start}
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; (gen/sleep 5)
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; {:type :info, :f :stop}]))
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(gen/time-limit (+ (:time-limit opts) 5)))}))
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(defn -main
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"Handles command line arguments. Can either run a test, or a web server for
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