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The rest of my notes from the
#Jepsen workshop with@aphyr Including explanations about concurrency with cats
!pic.twitter.com/dDEBqJipyp
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Learning about
#Jepsen fundamentals during our#Jepsen workshop with@aphyrpic.twitter.com/FXLEMK87rc
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In this
#Jepsen analysis, we explore three safety bugs in@YugaByte DB: a distributed, multi-model database which combines sharded instances of Raft with leader leases, hybrid logical clocks, and a custom 2PC cross-shard transactional protocol. https://jepsen.io/analyses/yugabyte-db-1.1.9 …Show this thread -
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Most systems fail
#Jepsen test.@VoltDB passed in v6.4. Not all vendors fix what#Jepsen finds, VoltDB does. pic.twitter.com/fX695UocVA
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People View all
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In the latest
#Jepsen analysis, we worked with@pingcap to test TiDB 2.1.7 through 3.0.0-rc.2. Due to 2 transaction retry mechanisms, TiDB exhibited constant snapshot isolation anomalies under normal conditions. This and other bugs are fixed in 3.0.0-rc.2: https://jepsen.io/analyses/tidb-2.1.7 … -
In this
#Jepsen analysis, we look at Hazelcast: an in-memory data grid with a habit of forgetting. https://jepsen.io/analyses/hazelcast-3-8-3 …Show this thread -
Integrating
@aphyr’s#Jepsen into our CI presented challenges, now protects us from regressions in linearizability: https://engineering.mongodb.com pic.twitter.com/jUlA7eq3sW
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New
#Jepsen report! We worked with@YugaByte to evaluate YugaByte DB 1.3.1's beta support for serializable SQL transactions. We found 2 safety bugs including anti-dependency cycles (now fixed), and availability issues like a slow leak in backend processes. https://jepsen.io/analyses/yugabyte-db-1.3.1 …Show this thread -
New
#Jepsen analysis: the Tendermint blockchain system for byzantine fault tolerant replication of state machines: https://jepsen.io/analyses/tendermint-0-10-2 …Show this thread -
Starting out our
#Jepsen workshop with@aphyr with an intro to#Clojure!
pic.twitter.com/Cl3YlYOkdC
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In the latest
#Jepsen analysis, we return to@aerospikedb 3.99.0.3, checking their next-generation consensus system scheduled to be released in 4.0. We confirm data loss due to process crashes and 27+ second pauses, and found a subtle bug in proxied nacks. https://jepsen.io/analyses/aerospike-3-99-0-3 …Show this thread -
I've been experimenting with
#Jepsen to check for application correctness, here's a writeup of where I got to & how: https://caligin.github.io/2017/08/29/experimenting-with-jepsen.html …Show this thread -
New
#Jepsen analysis: reviewing and expanding@cockroachdb's tests. We found & fixed serializability violations! https://jepsen.io/analyses/cockroachdb-beta-20161013 … -
How can someone be so bad at their job?
#Jepsen -
RethinkDB 2.2.3: A rare case of split-brain after cluster reconfiguration
#jepsen https://aphyr.com/posts/330-jepsen-rethinkdb-2-2-3-reconfiguration … -
On
@MongoDBEng: How we integrated@aphyr’s#Jepsen into our CI system to prevent regressions in linearizability. http://spr.ly/60108V1Tq pic.twitter.com/5P2hQxq8HY
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@aphyr Thanks for#Jepsen! now that it passed, we'll contribute enhancements to it. http://www.scylladb.com/2016/02/11/jepsen-testing/ … -
Thrilled to announce that
@YugaByte DB has passed official#Jepsen testing! It was a pleasure to collaborate with@aphyr on this; and super proud of the engineering team for reaching this milestone so quickly-- no easy task for a distributed database!https://twitter.com/jepsen_io/status/1110575993297739776 … -
Does evaluating, debugging, testing distributed databases excite you? Do you like
#Jepsen and#consistency models? Working w super smart but humble teams?@TimescaleDB hiring first engineer for building in-house testing infrastructure. Remote first.https://www.timescale.com/careers/4540245002-testing-infrastructure-and-release-engineer …
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