Samba on Scale: Difference between revisions

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* [https://fauna.com/blog/comparison-of-scalable-database-isolation-levels A Comparison of Scalable Database Isolation Levels]
* [https://fauna.com/blog/comparison-of-scalable-database-isolation-levels A Comparison of Scalable Database Isolation Levels]
* [https://fauna.com/blog/demystifying-database-systems-correctness-anomalies-under-serializable-isolation Correctness Anomalies Under Serializable Isolation]
* [https://fauna.com/blog/demystifying-database-systems-correctness-anomalies-under-serializable-isolation Correctness Anomalies Under Serializable Isolation]
* [https://dbmsmusings.blogspot.com/2019/06/correctness-anomalies-under.html Correctness Anomalies Under Serializable Isolation]
* [https://accelazh.github.io/storage/Linearizability-Vs-Serializability-And-Distributed-Transactions Linearizability vs Serializability, and Distributed Transactions]
* [https://accelazh.github.io/storage/Linearizability-Vs-Serializability-And-Distributed-Transactions Linearizability vs Serializability, and Distributed Transactions]
* [https://docs.yugabyte.com/preview/faq/comparisons/ Comparison of a few SQL and no-SQL DBs]
* [https://docs.yugabyte.com/preview/faq/comparisons/ Comparison of a few SQL and no-SQL DBs]

Revision as of 10:36, 9 March 2023

List of scalable Key/Value Stores

For an overview of Consistency Models see Jepsen or Wikipedia. Note: LWT are defined as multiple operations on a single key.

Name Type Consistency Model Transactions C Client Notes
ctdb K/V Volatile DBs: Basically Sequential Consistency
Persistent DBs: Strict Serializability
No
Yes
yes
etcd K/V Linearizability LWT ("mini") yes
Ceph Rados K/V Linearizability LWT via Object Operations yes
YugabyteDB SQL Single-key Linearizability with LWT yes yes
Apache Cassandra 1-4 CQL Configurable, highest:
Single-key Linearizability with LWT
yes yes
Apache Cassandra 5 CQL Upcoming:
Strict Serializability [1]
yes yes
FoundationDB K/V Strict Serializability yes yes
CockroachDB SQL Serializable+, Strong Partition Serializability LWT yes 1
ScyllaDB CQL Single-key Linearizability with LWT LWT yes
tikv K/V Strong Consistency[2] yes (Percolator based) no (C++)
Apache Pegasus ? ? ? no (C++)
Apache HBase ? ? ? ?
Apache Ignite ? ? ? ?

Rapid Samba dbwrap backend prototyping

A new dbwrap backend called dbwrap_py that calls into Python for the database operations. Available backends:

List of Opensource Clustered Filesystems

Name Built on-top of Object Storage Notes
Ceph yes
GlusterFS no
JuiceFS yes
MooseFS no
ObjectiveFS yes
Lustre no
BeegFS no

Links