Galera Cluster
E190352
database clustering technology
high-availability database solution
synchronous multi-master replication solution
Galera Cluster is a synchronous multi-master replication solution that enables high-availability, fault-tolerant clustering for MySQL-compatible databases like MariaDB.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Galera Cluster canonical | 4 |
| Galera replication library | 2 |
| Galera Cluster for MariaDB | 1 |
| Galera Cluster for MySQL | 1 |
| Galera Cluster for Percona XtraDB Cluster | 1 |
| Galera Replication Library | 1 |
| MariaDB Galera Cluster | 1 |
| wsrep API | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1672143 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Galera Cluster Context triple: [MariaDB, supportsFeature, Galera Cluster]
-
A.
MariaDB
MariaDB is an open-source relational database management system, forked from MySQL, known for its compatibility, performance, and community-driven development.
-
B.
Red Hat Ceph Storage
Red Hat Ceph Storage is a software-defined, massively scalable storage platform based on the Ceph project, providing unified object, block, and file storage for cloud and container environments.
-
C.
MySQL HeatWave
MySQL HeatWave is a fully managed, in-memory query acceleration and analytics engine integrated with MySQL to deliver high-performance OLTP and OLAP processing on the same database service.
-
D.
Oracle Real Application Clusters (RAC)
Oracle Real Application Clusters (RAC) is an Oracle Database option that enables multiple servers to run a single database simultaneously for high availability, scalability, and fault tolerance.
-
E.
Jepsen
Jepsen is a surname most notably associated with individuals such as display technology innovator Mary Lou Jepsen.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Galera Cluster Target entity description: Galera Cluster is a synchronous multi-master replication solution that enables high-availability, fault-tolerant clustering for MySQL-compatible databases like MariaDB.
-
A.
MariaDB
MariaDB is an open-source relational database management system, forked from MySQL, known for its compatibility, performance, and community-driven development.
-
B.
Red Hat Ceph Storage
Red Hat Ceph Storage is a software-defined, massively scalable storage platform based on the Ceph project, providing unified object, block, and file storage for cloud and container environments.
-
C.
MySQL HeatWave
MySQL HeatWave is a fully managed, in-memory query acceleration and analytics engine integrated with MySQL to deliver high-performance OLTP and OLAP processing on the same database service.
-
D.
Oracle Real Application Clusters (RAC)
Oracle Real Application Clusters (RAC) is an Oracle Database option that enables multiple servers to run a single database simultaneously for high availability, scalability, and fault tolerance.
-
E.
Jepsen
Jepsen is a surname most notably associated with individuals such as display technology innovator Mary Lou Jepsen.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
database clustering technology
ⓘ
high-availability database solution ⓘ synchronous multi-master replication solution ⓘ |
| configurationInterface | my.cnf configuration parameters ⓘ |
| consistencyModel |
strong consistency
ⓘ
virtually synchronous consistency ⓘ |
| coreConcept |
group communication
ⓘ
quorum-based membership ⓘ write-set certification ⓘ |
| developedBy | Codership ⓘ |
| integratedIn |
MariaDB Galera Cluster
ⓘ
linked to:
Galera Cluster
Percona XtraDB Cluster ⓘ |
| license | GPL-compatible license (for open-source variants) ⓘ |
| providesFeature |
automatic membership control
ⓘ
automatic node joining ⓘ automatic node leaving ⓘ automatic node provisioning ⓘ certification-based replication ⓘ fault tolerance ⓘ high availability ⓘ multi-primary topology ⓘ parallel replication ⓘ virtually synchronous replication ⓘ write-set replication ⓘ |
| replicationModel | multi-master replication ⓘ |
| replicationType | synchronous replication ⓘ |
| requires |
reliable network between nodes
ⓘ
wsrep-enabled MySQL or MariaDB server ⓘ |
| supportsDatabase |
MariaDB
ⓘ
MySQL ⓘ Percona Server for MySQL ⓘ
linked to:
Percona XtraDB
Percona XtraDB ⓘ |
| supportsFeature |
automatic failover
ⓘ
automatic node rejoin ⓘ cluster-wide transactions ⓘ flow control ⓘ incremental state transfer ⓘ online schema changes with precautions ⓘ rolling upgrades ⓘ state snapshot transfer ⓘ transaction certification ⓘ |
| supportsOperatingSystem |
Linux
ⓘ
Unix-like systems ⓘ |
| supportsTopology |
active-active cluster
ⓘ
geographically distributed cluster ⓘ multi-master cluster ⓘ |
| typicalUseCase |
OLTP workloads
ⓘ
high-availability database backends ⓘ web applications ⓘ |
| usesComponent |
Galera Replication Library
ⓘ
linked to:
Galera Cluster
wsrep API ⓘ
linked to:
Galera Cluster
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Galera Cluster Description of subject: Galera Cluster is a synchronous multi-master replication solution that enables high-availability, fault-tolerant clustering for MySQL-compatible databases like MariaDB.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Galera Cluster
linked to: Galera Cluster
linked to: Galera Cluster
linked to: Galera Cluster
linked to: Galera Cluster
linked to: Galera Cluster
linked to: Galera Cluster