forked from Deuxfleurs/garage
jepsen: register crdt read-after-write is fixed with deleteobject patch
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4 changed files with 9 additions and 9 deletions
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@ -45,7 +45,7 @@ clocks are scrambled.
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### Register linear, with timestamp patch
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Command: `lein run test --nodes-file nodes.vagrant --time-limit 60 --rate 20 --concurrency 20 --workload reg1 --ops-per-key 100 -I`
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Command: `lein run test --nodes-file nodes.vagrant --time-limit 60 --rate 20 --concurrency 20 --workload reg1 --ops-per-key 100 --patch tsfix1`
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Results:
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@ -62,15 +62,13 @@ Results: fails with a simple clock-scramble nemesis.
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Explanation: old values are not overwritten correctly when their timestamps are in the future.
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### Read-after-write CRDT register model, with timestamp patch
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### Read-after-write CRDT register model, with timestamp patch (v2 with DeleteObject fix as well)
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Command: `lein run test --nodes-file nodes.vagrant --time-limit 60 --rate 100 --concurrency 100 --workload reg2 --ops-per-key 100 -I`
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Command: `lein run test --nodes-file nodes.vagrant --time-limit 60 --rate 100 --concurrency 100 --workload reg2 --ops-per-key 100 --patch tsfix2`
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Results:
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- Failures with clock-scramble nemesis + partition nemesis ???? TODO INVESTIGATE
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-> the issue seems to be only after DeleteObject (deletions are not always taken into account),
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the issue does not appear if we are using only PutObject with an actual object content
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- No failures with clock-scramble nemesis + partition nemesis
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- TODO: layout reconfiguration nemesis
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@ -123,6 +121,7 @@ The inconsistencies seemed to always happenned after writing a nil value, which
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instead of a PutObject. By removing the possibility of writing nil values, therefore only doing
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PutObject calls, the issue disappears. There is therefore an issue to fix in DeleteObject.
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The issue in DeleteObject seems to have been fixed by commit `c82d91c6bccf307186332b6c5c6fc0b128b1b2b1`
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## License
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1
script/jepsen.garage/Vagrantfile
vendored
1
script/jepsen.garage/Vagrantfile
vendored
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@ -13,6 +13,7 @@ Vagrant.configure("2") do |config|
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config.vm.provider "virtualbox" do |vb|
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vb.gui = false
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vb.memory = "512"
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vb.customize ["modifyvm", :id, "--vram=12"]
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end
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config.vm.provision "shell", inline: <<-SHELL
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@ -23,7 +23,8 @@
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(def patches
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"A map of patch names to Garage builds"
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{"default" "v0.9.0"
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"tsfix1" "d146cdd5b66ca1d3ed65ce93ca42c6db22defc09"})
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"tsfix1" "d146cdd5b66ca1d3ed65ce93ca42c6db22defc09"
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"tsfix2" "c82d91c6bccf307186332b6c5c6fc0b128b1b2b1"})
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(def cli-opts
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"Additional command line options."
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@ -112,8 +112,7 @@
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(range)
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(fn [k]
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(->>
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; (gen/mix [op-get op-put op-del])
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(gen/mix [op-get op-put])
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(gen/mix [op-get op-put op-del])
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(gen/limit (:ops-per-key opts)))))})
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(defn workload1
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