Release Notes¶

GraphDB release notes provide information about the features and improvements in each release, as well as various bug fixes. GraphDB’s versioning scheme is based on semantic versioning. The full version is composed of three components:

major.minor.patch

e.g., 9.5.1 where the major version is 9, the minor version is 5 and the patch version is 1.

Note

Releases with the same major and minor versions do not contain any new features. Releases with different patch versions contain fixes for bugs discovered since the previous minor. New or significantly changed features are released with a higher major or minor version.

GraphDB 9 includes the following components with their version numbers:

RDF4J
GraphDB Connectors
GraphDB Workbench

Their versions use the same semantic versioning scheme as the whole product, and their values are provided only as a reference.

GraphDB 9.7.0¶

Released: 29 March 2021

Component versions¶

RDF4J	Connectors	Workbench	Ontop
3.6.1	14.0.0	1.7.0	4.1.0

Important

Substantial performance and database throughput improvements - the engine implements a major improvement in the memory management and a 30% reduction in the generated Java objects. In combination with the optimized hashing algorithms and processing of DISTINCT/GROUP BY results, the database achieves up to 3 times better throughput in multi-client scenarios with such queries over large datasets like BSBM 1B. The overall performance improvement for all other operations is between 10-15% due to the lowered GC time. All changes are backward compatible and should positively affect large repositories under moderate to heavy query load.
Extended Connector syntax to support wildcards literal predicates, field derived from the last element of a property path and range searchers
Multiple usability improvements in JDBC virtual table configuration, displays the owner of the running query in the monitoring log, support of FROM and FROM NAMED over the internal federation protocol
Upgrade to the latest RDF4J 3.6.1 and Ontop 4.1 releases
Important bug fixes:
- Multiple issues with SHACL support and potential deadlocks, when changing the schema
- Export big repositories through a virual repository cuased by OME

GraphDB Engine & Cluster¶

New features and improvements¶

GDB-4437 Add mechanism for specifying FROM/FROM NAMED in internal federation
GDB-4588 Repository health check does not return anything until the repo is fully launched
GDB-5210 Research all data structures used in critical sections of the engine code
GDB-5358 Replace critical data structure implementations with Eclipse collections
GDB-5417 Investigate the transactional read performance of a cluster
GDB-5459 Upgrade Ontop to 4.1.0
GDB-5465 Optimise join between subselects using cache sort and bsearch for faster matches
GDB-5474 Replace RDF4J’s QueryBindingSet with a memory efficient implementation
GDB-5494 Replace RDF4J’s BigInteger compute and compare where possible with primitive structures
GDB-5501 Refactor RepositoryProperties to reduce lock waiting time and memory consumption
GDB-5552 Fix a security vulnerabilities found by the maven dependency check plugin
GDB-5580 Upgrade RDF4J to 3.6.1
GDB-5602 Assertion issue with VALUES clause optimization

Bug fixing¶

GDB-4650 Inverse property path with optional ? does not work in some cases
GDB-5246 Cannot export relatively small virtual repository (OOM)
GDB-5322 Deadlock when bombarding the DB with SHACL requests
GDB-5470 Prop completion does not work in prop path
GDB-5496 BOUND in UNION clause evaluated incorrectly
GDB-5533 Moving graph with owl:sameAs triple results in endless loop

GraphDB Workbench¶

New features and improvements¶

GDB-3863 Add GraphDB Workbench version in System information view
GDB-4852 Add username to query monitoring view
GDB-5250 Visual Graph shows orphan nodes out of the box
GDB-5393 Refactor graphdb.js server and client configurations to make them easier to create, extend, and use
GDB-5498 Add autocomplete hint in Mapping UI
GDB-5525 Move keyboard shortcuts button in SPARQL editor when autocomplete hint is not visible
GDB-5558 Usability improvement in JDBC table UI

Bug fixing¶

GDB-3241 Similarity index listing in UI disappears during creation in cluster
GDB-5079 Workbench: Cannot delete virtual repository from the WB interface
GDB-5161 Virtual repositories: edit file icon overlaps with the filepath for all virtual repository configuration fields
GDB-5207 Workbench: JDBC - the Preview button and Keyboard shortcuts buttons are overlapping
GDB-5298 Cannot set an object constant as RawIRI when predicate is a
GDB-5323 Editing Ontop repository file ends with two different files in repository’s directory
GDB-5324 Editing Ontop repository file leaves .tmp file into temporary directory
GDB-5368 Poor support for langStrings in JDBC
GDB-5369 JDBC UI should not lose my data in case of error
GDB-5370 JDBC “Is nullable” should be checked for most fields
GDB-5410 Resource search box: search box disappears in repository due to repository status update
GDB-5416 Resource search box: Previously selected resource is not highlighted after re-opening the search box
GDB-5461 Class hierarchy: the class count slider gets misplaced when downloading the chart diagram
GDB-5464 Read-only repositories: There is no active location after attempting to delete a read-only repository
GDB-5520 Visiting Similarity and Visual Graph views with master repository that has thrown error “No workers configured” on creation of the master node still reports the error even when cluster is configured and data is uploaded in it
GDB-5537 Mapping UI configuration/preview/both buttons are not visible on smaller screens
GDB-5541 Resource search box: Home page should show the autocomplete suggestions dropdown only when field is on focus

GraphDB Connectors & Plugins¶

New features and improvements¶

GDB-5418 As a user, I need a transactionally safe FTS over RDF values
GDB-5477 Add support for inverse IRIs in the connectors property chains
GDB-5479 Add support for format and scaling_factor in the ES mappings
GDB-5564 Allow skipping invalid values in the Connectors

Bug fixing¶

GDB-5376 Similarity plugin may fail the SHACL validation
GDB-5493 Connectors default value not applied when all values are removed via entity filter
GDB-5500 Connectors do not detect update in nested objects
GDB-5519 Race condition when indexing language tags with multiple Connector instances
GDB-5523 Connectors with static data fail when lang() is used to index the language tag of a literal
GDB-5540 Issue with Connectors and object with rdf:type as property chain
GDB-5565 Incomplete recovery after external failure in Elasticsearch or Solr
GDB-5605 Connectors not saving the dynamic settings on connector create and not reverting them on failure

GraphDB Distributions¶

Bug fixing¶

GDB-5522 Data virtualization does not work with GraphDB native application because the user cannot add the JDBC driver to the static classpath

GraphDB 9.6.0¶

Released: 8 February 2021

Component versions¶

RDF4J	Connectors	Workbench	Ontop
3.5.1	13.0.1	1.6.0	4.0.2

Important

Improved usability of GraphDB data virtualization with preconfigured, ready-to-use configurations for supported RDBMS providers.
Users no longer need to restart the entire GraphDB instance to restart a single repository.
Many improvements in GraphDB Workbench UI, such as easy repository creating and RDF resource searching.
The GraphDB JavaScript Driver now supports token-based and basic authentication against a secured server. It also supports repository management operations like create, edit, delete, and shutdown.
Upgraded to the latest RDF4J version 3.5.1.

GraphDB Engine & Cluster¶

New features and improvements¶

GDB-5334 Change the log level to WARN when the available cores are more than the licensed ones
GDB-3579 JS Driver: Add Repository Management API in GraphDBServerClient
GDB-5309 JS Driver: As a developer, I want to authenticate against a secured GraphDB server
GDB-5373 Upgrade RDF4J to 3.5.1
GDB-5191 Enable the Preload tool to work with repositories other than OwlimSchemaRepository
GDB-5316 Provide better error message when a node cannot connect to the master when verifying network connectivity for the purpose of connecting cluster nodes
GDB-5320 No way to connect to remote locations when OpenID + OAuth is used

Bug fixing¶

GDB-4225 Import status is not updated after GraphDB restart
GDB-4990 Explain queries are not using prefixes provided with the query
GDB-4991 Slower updates after many updates, goes away by index rebuild
GDB-5160 JDBC Driver: Ontop repository created/added without PSQL .jar blocks JDBC driver
GDB-5161 Virtual repositories: edit file icon overlaps the filepath for all virtual repository configuration fields
GDB-5199 Query timeout when using the internal federation
GDB-5323 Editing Ontop repository file results in two different files in repository’s directory
GDB-5324 Editing Ontop repository file leaves .tmp file in temporary directory
GDB-5329 Running a big query causes StackOverflow exception
GDB-5366 GraphDB deadlock issue
GDB-5396 Create repository with remote locations: custom ruleset and Ontop configuration unusable
GDB-5412 Update dependencies to fix security vulnerabilities

GraphDB Workbench¶

New features and improvements¶

GDB-3855 Show worker last error as popup on link if worker state is OFF in Cluster management view
GDB-4864 As a user of the mapping UI, I want to click on IRIs in the preview so that I can go to resource view to verify that the IRI is the correct one
GDB-4885 Mapping UI: Preview cells with no value
GDB-4972 Sort built-in rulesets in order of complexity
GDB-5404 Style mapping UI disabled buttons consistently with the Workbench
GDB-2068 Expose the resource search box somewhere so that is always visible
GDB-5275 Improve the usability of the GraphDB data virtualization feature
GDB-5276 As a user, I want to select an RDBMS provider when creating an Ontop repo and fill in the config for the selected provider in the relevant form
GDB-5278 As a user, I want to restart a repository without restarting GraphDB
GDB-5337 As user, I expect to see the same prefixes in the mapping UI as in the repository namespace page
GDB-5339 Redesign the “Create Repository” screen in the Workbench
GDB-5242 Add SHACL Shape Graph to Graphs Overview
GDB-5280 Add pagination to SPARQL results when count results is OFF or when the count timeouts
GDB-5338 The OpenRefine to RDF value mapping dialog should disallow inputting new line in all fields
GDB-5351 Add xml* to download SPARQL results to application/x-sparqlstar-results+xml

Bug fixing¶

GDB-3946 Wrong styles in visual graph tags
GDB-4406 Workbench console errors
GDB-5027 RDF Mapping: Pasting a valid prefix value in the prefix field will not autoresolve it
GDB-5029 OntoRefine: Adding a longer prefix name will offset the cell buttons and make them overlap with the next cell
GDB-5205 RDF mapper UI: Blank mapper page when GraphDB is behind proxy
GDB-5207 Workbench: JDBC - the Preview button and Keyboard shortcuts buttons are overlapping
GDB-5237 Unset password status is not updated in the Workbench
GDB-5260 Workbench displays read-only repositories with read/write access
GDB-5325 Workbench: UI issue with uploaded file’s info tooltip

GraphDB Connectors & Plugins¶

Bug fixing¶

GDB-5388 Error when creating Elasticsearch connector by importing .ttl file

GraphDB 9.5.1¶

Released: 13 January 2021

Component versions¶

RDF4J	Connectors	Workbench	Ontop
3.4.4	13.0.0	1.5.1	4.0.2

Important

Several non-critical bug fixes in GraphDB Engine, Workbench, and MongoDB connector

GraphDB Engine¶

Bug fixing¶

GDB-5344 Extra space in OpenID scope prevents Keycloak from working with GraphDB

GraphDB Workbench¶

Bug fixing¶

GDB-4864 RDF Mapping UI: Preview items for IRI cells should be links to the Workbench resource view
GDB-4912 RDF Mapping UI: Error during column autocomplete
GDB-5251 Case sensitive autocomplete in RDF Mapping API
GDB-5321 Better error messages when OpenID token can’t be used with GraphDB
GDB-5335 The SPARQL autocomplete does not display the hit snippet, which limits its use when applied to non-human readable URIs
GDB-5336 RDF Mapping UI: Cannot read the autocomplete indexes from the current active repository
GDB-5357 RDF Mapping UI: Console errors when opening an already created project

GraphDB Connectors¶

Bug fixing¶

GDB-5047 MongoDB connector does not convert “$numberLong” to xsd:long

GraphDB 9.5.0¶

Released: 7 December 2020

Component versions¶

RDF4J	Connectors	Workbench	Ontop
3.4.4	13.0.0	1.5.0	4.0.2

Important

Data virtualization of a relational database with the Ontop framework. All GraphDB editions now support a new repository type initialized with an R2RML or OBDA descriptor file to access a relational database like IBM DB2, MySQL, Oracle, PostgreSQL, Microsoft SQL Server, H2, and Denodo as a virtual read-only RDF graph. The new virtual repositories allow both the SPARQL access to RDBMS with highly dynamic or impractical to transform data source, and the batch transformation of relational models into RDF when requiring reasoning or advanced query features like property paths.
A new user interface simplifies the management of the SQL views mapped to SPARQL queries for JDBC access. The interface guides the user in validating the SPARQL queries’ syntax and their mapping to SQL types. It supports the automatic suggestion of the SQL value mapping after a scan as a bonus feature.
Improved security and single sign-on support including OpenID authentication and OAuth authorization.

Important bug fixes and improvements:

Performance optimization boosting the performance of short-lived requests
Upgraded Connectors to Lucene 8.6.3, Solr 8.6.3, Elasticsearch 7.9.2
Added support for comparison operators and regex in Connector entity filter and fixes in the mapping of nested fields and field values
Important fixes in SHACL validation and the cluster support
Multiple fixes in the SPARQL support, such as: arbitrary-length path within OPTIONAL clause; the STRUUID() function now works in the cluster; the UUID() function now returns deterministic results
Upgraded to the latest RDF4J version 3.4.4

GraphDB Engine & Cluster¶

New features and improvements¶

GDB-4493 Optimize the remote join in federated queries by batching the value

GDB-4995 Enable virtual read-only SPARQL endpoint over RDBMS with Ontop framework

GDB-4497 Fix latest vulnerabilities found in GraphDB Engine & Workbench

GDB-4999 Single sign-on authentication over OpenID Connect protocol

GDB-5006 As an operation manager I need a mechanism to control the amount of memory when dealing with many repositories

GDB-5067 Upgrade RDF4J to the latest version (3.4.4)

GDB-5069 Improve SHACL reporting in cluster mode to obtain the SHACL schema

GDB-5072 As a user I want to configure OIDC authentication

GDB-5073 As a user I want to configure OAuth2 authorization

GDB-5163 Upgrade various libraries to newer versions

GDB-5195 Optimize queries with generation of many short-lived connections

GDB-5206 Expand SHACL transaction settings to work in cluster

Bug fixing¶

GDB-3043 Weird interaction of VALUES and federated query

GDB-4095 SHACL logging is duplicated upon clear all

GDB-4490 Runaway federated query cannot be stopped

GDB-4918 SHACL: the SHACL extension constraint dash:hasValueIn behaves differently for expanded and prefixed IRIs

GDB-4920 Support SPARQLStar updates

GDB-4979 ConcurrentModificationException in GraphDB cluster master node

GDB-5026 NPE when trying to use INSERT WHERE clause with nested triples

GDB-5053 UUID() sometimes yields same result over different query solutions

GDB-5054 Explain plan does not show SERVICE expressions

GDB-5066 STRUUID() in cluster returns non-deterministic results

GDB-5068 Trying to list rulesets returns only selected one for the current repository twice

GDB-5152 SPARQL Federation fails when GraphDB uses HTTP proxy

GDB-5177 ‘Alias has already been used’ exception with GraphDB in a cluster

GDB-5197 Inconsistency in the return results when using internal federation

GDB-5198 SHACL: invalid regexes lead to inability to insert any data in the repository

GDB-5209 Incorrect results returned by an arbitrary length property (ALB) path nested in optional clause

GDB-5221 NTLM authentication to a proxy does not work because of an old workaround

GDB-5223 Cluster client creates multiple instances of RDF4JProtocolSession and does not close them, which makes the heap grow until OOM error

GDB-5233 N-Quad parser does not handle base64-encoded RDF-star triples

GDB-5262 ArrayIndexOutOfBoundsException after trying to compute RDFRank with filtering and without data in the repository

GraphDB Workbench¶

New features and improvements¶

GDB-4997 As a user I want to create, configure, and delete virtual repositories with GraphDB Workbench

GDB-5012 As a user I need a graphical UI and API to configure SPARQL to SQL views

Bug fixing¶

GDB-4143 OntoRefine creates files at a late point, which may cause them to stay on disk after Windows installation removal

GDB-4525 Searching for a deleted embedded triple will result in “no results” displayed in Raw Response tab

GDB-4749 OpenRefine does not save created projects properly when GraphDB is stopped

GDB-4753 OntoRefine memory leak

GDB-5028 RDF Mapping: Adding an unknown prefix in the prefix field will corrupt the mapper interface

GDB-5046 FreeAccess user should not be able to access OntoRefine functionality

GDB-5057 OntoRefine login is required for users/repository admins/admins when security is ON

GDB-5058 User login form is required when accessing OntoRefine with a free access user via URL redirection

GDB-5176 RDF Mapping interface does not work with “naked” prefix

GDB-5180 RDF-Mapping interface: Impossible to create blank nodes

GDB-5258 RDF Mapping: Cannot set a prefix through the edit window when property is ‘a’

GraphDB Connectors & Plugins¶

New features and improvements¶

GDB-5167 Upgrade Lucene, Solr (8.6.3) and Elasticsearch (7.9.2) in the connectors

GDB-5188 Introduce a flag in the Elasticsearch connector that makes field values always use arrays

GDB-5194 Add support for comparison operators and REGEX in plugin/connector expressions

Bug fixing¶

GDB-5178 Wrong mapping with more than one level of nested fields in Elasticsearch connectors

GraphDB Distributions¶

Bug fixing¶

GDB-5166 Refine’s Jython extension packaged by mistake into the distribution

GDB-5169 GraphDB Free on MacOS ignores the JVM properties

GraphDB 9.4.1¶

Released: 28 September 2020

Component versions¶

RDF4J	Connectors	Workbench
3.3.1	12.1.1	1.4.1

Important

Several non-critical bug fixes in GraphDB Engine and Workbench

GraphDB Engine¶

Bug fixing¶

GDB-4964 Incorrect result from MINUS over solutions from SERVICE
GDB-4977 The process cannot access the file error when creating a second server report on Windows
GDB-4979 ConcurrentModificationException in GraphDB cluster master node
GDB-5013 Simultaneous requests for add user/edit user may lead to changes not being applied

GraphDB Workbench¶

Bug fixing¶

GDB-4497 Fix latest vulnerabilities found in GraphDB Workbench
GDB-4876 RDF Mapping: Namespace set as constant disappears
GDB-4946 RDF Mapping: Preview will not be generated for cells that have data if there is an empty cell before them in the mapping definition
GDB-4965 Login form not showing up
GDB-4982 Errors in the browser’s console using Class Relationship Diagram and Similarity Index pages
GDB-4983 My settings: count total results checkbox is not working properly

GraphDB Distributions¶

Bug fixing¶

GDB-4984 Mac native app displays incorrect encoding of the license agreement text

GraphDB 9.4.0¶

Released: 02 September 2020

Component versions¶

RDF4J	Connectors	Workbench
3.3.1	12.1.1	1.4.0

Important

Visual interface to generate structured to RDF data mappings in OntoRefine. The new interface enables the users to quickly map structured data to common RDF vocabularies and the ontologies stored in the current repository. The mapping interface also preserves the support of cleaning with GREL transformations, reconciling data against external services and exporting the transformation for automating the updates.
RDF mapping API. The new RDF Mapping API allows fast and easy automation of data to RDF transformations. It supports data providers like an OpenRefine project or posted CSV stream over which the user can apply mappings developed with the visual interface or SPARQL.
SQL access to GraphDB over JDBC driver. GraphDB features fully functional SQL-based access. Users can register SQL views over SPARQL queries and the new SQL query engine will optimize their execution by pushing some of the complexity down into the SPARQL query.
Usability improvements. Users can monitor and abort their own queries without the admin role; share saved visual graphs with other or anonymous access users; RDF parsers load the repository default prefixes;
Important fixes. SHACL validation is also functional in the cluster and includes multiple extensions introduced by RDF4J 3.3.0; Improved cluster scalability when consuming large results.

GraphDB Engine & Cluster¶

New features and improvements¶

GDB-3150 SQL access over JDBC driver to GraphDB
GDB-4462 Visual interface to generate tabular to RDF data mappings in OntoRefine
GDB-4088 Upgrade to the latest OpenRefine 3.3 version
GDB-4773 Advertise HTTP Basic as supported authentication when security is enabled
GDB-4806 RDF mapping API with streaming support to transform tabular data into RDF
GDB-4838 Upgrade RDF4J to 3.3.1 version
GDB-4862 OntoRefine: Update the default list of reconciliation services
GDB-4899 SHACL Validation: Extend the supported transaction settings in GraphDB

Bug fixing¶

GDB-3944 DuplicateAliasException when evaluation a query with an internal federation request to the same repository
GDB-4304 RDF parsers fail to load the repository default prefixes instead of RDF4J’s hardcoded one
GDB-4692 Incorrect evaluation of queries with ALP and wildcards
GDB-4849 Cluster worker is blocked from reads when a query result is being consumed
GDB-4870 Cannot create a cluster with SHACL repositories
GDB-4874 Track read operations on the master instead of relying only on track records from workers
GDB-4881 SHACL Validation: Some configuration parameters are not parsed
GDB-4890 Interrupted queries with orderBy do not propagate QueryInterruptedException

GraphDB Workbench¶

New features and improvements¶

GDB-2088 As a user I want to select graph when I explore class hierarchy and dependencies
GDB-2179 As a user I want to share a visual graph with other users
GDB-4705 Users can manage their own queries in Query Monitoring
GDB-4950 Add SHACL transaction settings in the repository creation page

Bug fixing¶

GDB-3937 Error in Workbench trying to list JVM settings if changed

GraphDB Plugins & Connectors¶

New features and improvements¶

GDB-4115 Semantic Search: Expose semantic similarity threshold flag to users
GDB-4648 MongoDB: Expose collation feature to users

GraphDB 9.3.6¶

Released: 20 April 2021

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.0	1.3.2

Important

Fixed a non-critical bug in GraphDB Engine

GraphDB Engine¶

Bug fixing¶

GDB-5691 A transaction with multiple MOVE GRAPH updates generates incorrect results

GraphDB 9.3.5¶

Released: 11 Mart 2021

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.0	1.3.2

Important

Fixed a non-critical bug in GraphDB Engine

GraphDB Engine¶

Bug fixing¶

GDB-5533 Moving graph with owl:sameAs triple results an endless loop

GraphDB 9.3.4¶

Released: 12 November 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.0	1.3.2

Important

Several non-critical bug fixes in GraphDB Engine

GraphDB Engine¶

Bug fixing¶

GDB-4890 Interrupted queries with order by do not propagate QueryInterruptedException
GDB-5195 Optimize the memory allocation and the query execution of short lived getStatement and hasStatement API requests
GDB-5197 Inconsistency in the return results when using internal federation
GDB-5209 Incorrect results returned by an arbitrary length property path nested in optional clause

GraphDB 9.3.3¶

Released: 03 August 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.1	1.3.2

Important

Several non-critical bug fixes in GraphDB Engine and Connectors

GraphDB Engine¶

Bug fixing¶

GDB-4791 FROM onto:implicit and another named graph fails to return results
GDB-4828 Slow evaluation of a query with property path due to a wrong estimate of ALP

GraphDB Connectors¶

Bug fixing¶

GDB-4813 Lucene advance filtering: Mislabeling of fields as containing IRIs when the parent is used in a filter

GraphDB 9.3.2¶

Released: 21 July 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.0	1.3.2

Important

Several non-critical bug fixes in GraphDB Engine, Cluster and Plugins

GraphDB Engine¶

Bug fixing¶

GDB-4679 Wrong results returned from queries when two OPTIONAL patterns bind the same variable or OPTIONALs used in a singleton groups
GDB-4680 Filter with OR not handled correctly when literal constants came from BIND
GDB-4726 Slow query with OPTIONALs with multiple nesting
GDB-4735 Issue with evaluating queries with OPTIONAL-s in UNION-s and MINUS
GDB-4763 Incorrect handling of more than two alternatives in ALP

GraphDB Cluster¶

Bug fixing¶

GDB-4305 Unable to connect workers when creating a GraphDB cluster with proxy or docker

GraphDB Plugins¶

Bug fixing¶

GDB-4702 Cannot enable history plugin if disabled by migration
GDB-4757 The error that a plugin has been already started is not propagated to the user
GDB-4756 Missing space in the message when enabling/disabling the plugin

GraphDB Distributions¶

Bug fixing¶

GDB-4721 Curl is missing from the automatically built docker images

GraphDB 9.3.1¶

Released: 18 June 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.0	1.3.2

Important

Several non-critical bug fixes in GraphDB Engine

GraphDB Engine¶

Bug fixing¶

GDB-4593 RDF/XML file format with .xml extension is not properly detected when file is imported in Serial mode
GDB-4609 Slow execution time of a query with language filter
GDB-4614 Statements patters with zero estimation are not placed on top of the evaluation
GDB-4617 Spring content negotiation interferes with GraphDB REST API when the URL ends in .com
GDB-4625 Incorrect evaluation of ALP that contains alternatives or is placed in UNION
GDB-4636 Health checks do not work when SHACL validation repository is ON

GraphDB 9.3.0¶

Released: 1 June 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0	12.1.0	1.3.1

Important

Substantial performance improvement of SPARQL property paths with new native support in GraphDB
Enabled configuration of an LDAP bind user to query directories without anonymous access
Upgraded Connectors to latest versions of Elasticsearch, Solr, and Lucene without known security vulnerabilities
Several non-critical bug fixes in GraphDB Engine, Plugins, and Connectors

GraphDB Engine¶

New features¶

GDB-4120 Enable the configuration of an LDAP bind user to query directories without anonymous access
GDB-4503 Optimized the performance of SPARQL property paths by implementing their support into the GraphDB query model
GDB-4521 Measure the performance of a query per TupleExpression and print the collected query’s execution time like ExplainPlan with added Measurement statistics
GDB-4567 Upgrade to RDF4J 3.2.0 version

Bug fixing¶

GDB-3912 “+” over property paths may returns nothing
GDB-4107 Audit log does not respect Request ID header within the cluster
GDB-4519 “Cannot visit sub-query’s vars” error during processing of FILTER EXISTS operators with either SERVICE, sub-select or property path
GDB-4532 Literals index may rebuild after a GraphDB restart
GDB-4561 External applications cannot obtain the transaction ID using RDF4J transactions API
GDB-4573 Filters may fail to correctly eliminate RDF-star statements

GraphDB Plugins & Connectors¶

New features¶

GDB-4494 Allow the change tracking plugin to pause changes collection
GDB-4568 Upgrade Connectors to latest versions of ES (7.7), Solr (8.5.1), and Lucene (8.5.1)

GraphDB 9.2.1¶

Released: 11 May 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0-M1	12.0.3	1.3.1

Important

Several non-critical bug fixes in GraphDB Engine, Workbench, Plugins & Connectors

GraphDB Engine¶

Bug fixing¶

GDB-4483 FROM is much slower than the GRAPH clause because of an inefficient context index existence check
GDB-4501 Cached class hierarchy is not removed from cache on reload if new one is empty
GDB-4507 Storage tool cannot initialize some of the collections with 40 bits entity size

GraphDB Plugins & Connectors¶

Bug fixing¶

GDB-4444 Allow multiple fields per connector instance to define the property chain as a single property $self
GDB-4448 Similarity plugin fails when indexing small data repositories

GraphDB Workbench¶

Bug fixing¶

GDB-4403 Uncaught TypeError when loading swagger
GDB-4400 Resource view: Reduce the font of embedded triples in the resource view

GraphDB 9.2.0¶

Released: 23 April 2020

Component versions¶

RDF4J	Connectors	Workbench
3.2.0-M1	12.0.2	1.3.0

Important

GraphDB 9.2 now supports statement level annotations with RDF-star/SPARQL-star (formerly RDF*/SPARQL*). They enable a more efficient representation of scores, weights, temporal restrictions, and provenance information. It also allows the implementation of all use cases native for the property graph model by fully supporting all its modeling primitives. GraphDB and the new RDF type reduce by over 40% the number of RDF statements, the loading time, and the required disk space to model complex graphs like Wikidata.
The semantic similarity indexes remain online during refresh. All clients will continue to hit the old similarity index version until the new one is fully functional and published.
The GraphDB Proof plugin can trace back the rules fired to derive a particular implicit statement.
Improved performance in the history log searches and diffs with the current state.
All third party open-source libraries are upgraded to the newer version to avoid publicly known vulnerabilities.
RDF4J is upgraded to 3.2.0-M1 version, which includes the embedded triple type and new RDF-star parsers and serializers.

GraphDB Engine & Cluster¶

New features¶

GDB-4244 As a database user I want to upgrade all GraphDB APIs to support RDF-star formats
GDB-4245 As a database user I want to upgrade all GraphDB APIs to support SPARQL-star queries
GDB-4390 Update the RDF4J to version 3.2.0-M1 with RDF-star/SPARQL-star support

Bug fixing¶

GDB-4352 Local codes of the language tags follow ISO 639/3166, where “en-US” is case insensitive but returned in this format
GDB-3586 Notification listener fails to notify listeners for transactionStarted and transactionCompleted events
GDB-3836 Fixed the default path to the .keystore in graphdb.properties file
GDB-4092 Batching multiple updates with internal federation generates causes an NPE and HTTP error 500
GDB-4222 Fixed a potential deadlock in the GlobalPageCache during the predicate statistics update
GDB-4369 Storage tool may not replace IRI consistently in all database collections

GraphDB Workbench¶

New features¶

GDB-4246 As a database user I want the Workbench to support RDF-star/SPARQL-star syntax highlighting and rendering
GDB-4248 Extend YASR table view to render SPARQL-star results
GDB-4287 As a database user I need the Workbench to support the new MIME types so I can import and export RDF-star data
GDB-4375 Upgrade graphdb.js library to support RDF-star/SPARQL-star

Bug fixing¶

GDB-4386 Fix the minimist reported security vulnerability in Workbench
GDB-4401 Missing status when creating a Connector in Workbench
GDB-4402 JS error when disconnecting cluster node in Workbench
GDB-4409 YASR: Cached custom styles leads to bad SPARQL results presentation

GraphDB Plugins & Connectors¶

New features¶

GDB-4136 Similarity plugin: The similarity index remains online during refresh
GDB-4165 Proof plugin: Release a new plugin to trace back the rules fired to derive a particular implicit statement
GDB-4173 Data versioning plugin: Improve the efficiency of queries like “All that is changed for a subject in a date interval”
GDB-4444 Allow multiple fields per connector instance to define the property chain as a single property $self

Bug fixing¶

GDB-4318 Querying the history log for the same subject twice returns fewer results than expected

GraphDB Distributions¶

New features¶

GDB-4373 Upgrade the GraphDB docker to AdoptJDK 11 built on top of Alpine 3.11

GDB 9.1.1¶

Released: 21 January 2020

Component versions¶

RDF4J	Connectors	Workbench
3.0.1	12.0.2	1.2.2

Important

Several non-critical bug fixes in GraphDB Engine, Plugins & Connectors

GraphDB Engine¶

Bug fixing¶

GDB-4161 Adding invalid .pie file may corrupt repository

GraphDB Workbench¶

Bug fixing¶

GDB-4171 Product info JSON should not be visible in create similarity index page parameters

GraphDB Plugins & Connectors¶

Bug fixing¶

GDB-3030 Predication Similarity: OOM exception is thrown when trying to rebuild a failed index
GDB-4163 MongoDB plugin queries may hang
GDB-4172 Problem with score retrieval when ordering by a field in Lucene or Elasticsearch
GDB-4177 History plugin memory optimizations

GDB 9.1.0¶

Released: 19 January 2020

Component versions¶

RDF4J	Connectors	Workbench
3.0.1	12.0.1	1.2.0

Important

GraphDB 9.2 now supports statement level annotations with RDF-star/SPARQL-star. They enable a more efficient representation of scores, weights, temporal restrictions, and provenance information. It also allows the implementation of all use cases native for the property graph model by fully supporting all its modeling primitives. GraphDB and the new RDF type reduce by over 40% the number of RDF statements, the loading time, and the required disk space to model complex graphs like Wikidata.
The semantic similarity indexes remain online during refresh. All clients will continue to hit the old similarity index version until the new one is fully functional and published.
The GraphDB Proof plugin can trace back the rules fired to derive a particular implicit statement.
Improved performance in the history log searches and diffs with the current state.
All third party open-source libraries are upgraded to the newer version to avoid publicly known vulnerabilities.
RDF4J is upgraded to 3.2.0-M1 version, which includes the embedded triple type and new RDF-star parsers and serializers.

GraphDB Engine & Cluster¶

New features¶

GDB-4017 Extend the supported authentication protocols with Kerberos
GDB-4026 As a solution architect, I want to use SHACL validation with GraphDB
GDB-4101 Upgrade to RDF4J 3.0.1

Bug fixing¶

GDB-3043 Weird interaction of VALUES and Federated
GDB-3480 Creating a backup without providing the trailing slash of the path fails
GDB-3774 Variables bound in Filter leak outside the Filter block
GDB-3800 Peering password-protected masters with incorrect token does not generate any error messages
GDB-3804 DuplicateAliasException when using internal federation
GDB-3902 Abnormal behavior when a single OPTIONAL is an argument of a UNION
GDB-3911 Suboptimal owl2-rl rule implementation that handles owl:hasKey
GDB-3921 Nested OPTIONALs cause strange query results
GDB-3941 xsd:time queries with a timezone produce wrong results when running against a DB with no timezones
GDB-3943 Deadlock when evaluating a query with two SERVICE operators
GDB-3944 DuplicateAliasException when evaluating a query with internal federation request to same repository
GDB-3955 GraphDB Cluster stopped working because of dropped worker’s repository
GDB-4033 Federated query for single property fails
GDB-4071 Problem with newline in string literal when importing data using cURL
GDB-4084 Unbound variables in the SELECT cause performance degradation
GDB-4117 Removing owl:sameAs does not remove inferred statements
GDB-4141 Calling an unknown function in SPARQL does not throw an error and returns an empty binding
GDB-4150 Inconsistent behavior of backup between GraphDB editions
GDB-4154 OntoRefine Movies dataset cannot be inserted in GraphDB

GraphDB Workbench¶

New features and improvements¶

GDB-3694 Replace static libraries with their NPM versions
GDB-3864 Remove VersionUrlRewriteFilter as Workbench packages come with their own version hash
GDB-3874 Replace requires modules with standard es6 modules import/export
GDB-3885 Remove unused or empty stylesheets
GDB-3887 Implement and integrate rest clients
GDB-3888 Make use of utility classes/services
GDB-3890 Split Workbench bundle in more fine-grained pieces
GDB-3891 Optimize D3 library loading
GDB-3947 Invert module and component dependencies in Workbench
GDB-4053 Ask for and accept Kerberos authentication when using GraphDB Workbench
GDB-4153 Update Workbench libraries due to security risk reported by GitHub

Bug fixing¶

GDB-3699 Similarity index config is appended in the URL after cloning an existing index
GDB-3693 Resolve reported code quality issues in the Workbench
GDB-3810 Visual graph: advanced search is displayed in situations where Easy graph search should be used.
GDB-3898 Sending parallel queries to GDB Workbench links controller in GDB free results in a deadlock
GDB-3913 Graphs overview: cannot export graph’s contents from within the graph itself
GDB-3923 Missing remove icon in the cluster view
GDB-3924 Visual graph reports a strange 404 error when opening resource details
GDB-3939 Resource page is not loaded properly in Workbench
GDB-4050 Workbench: various overlaps in some sections of the Workbench
GDB-4085 Disabling sameAs from UI does not affect exported result set

GraphDB Connectors & Plugins¶

New features¶

GDB-3931 Implement change tracking plugin - a plugin that tracks data updates
GDB-3969 Implement GraphDB Plugin data for history and versioning

Bug fixing¶

GDB-3662 Improve the Connector error message when sorting over an empty index
GDB-3740 Similarity search query should be configurable without building similarity index
GDB-3904 Similarity search index does not preform special predicate validation properly, leading to “stuck” create index operations
GDB-3926 GeoSPARQL plugin displays wrong “current configuration” properties
GDB-3928 Propagate all ES connection errors to the Workbench
GDB-4079 Semantic vectors logs are left “open” when rebuilding a semantic vector, leading to a memory leak
GDB-4155 MongoDB connector raises Cannot cast org.bson.Document to java.util.List

GDB 9.0.1¶

Released: 23 March 2021

Component versions¶

RDF4J	Connectors	Workbench
3.0.0	12.0.1	1.1.2

Important

Several non-critical bug fixes in GraphDB Engine, Cluster, Connectors and Plugins

GraphDB Engine & Cluster¶

Bug fixing¶

GDB-3800 Peering password-protected masters with incorrect token does not generate any error messages
GDB-3911 Suboptimal OWL2-RL rule implementation that handles owl:hasKey
GDB-3955 GraphDB Cluster stopped working because of dropped worker’s repository
GDB-5223 Cluster client creates multiple instances of RDF4JProtocolSession and doesn’t close them, which makes the heap grow until OOM error
GDB-5465 Optimise join between subselects using cache sort and bsearch for faster matches

GraphDB Connectors & Plugins¶

Bug fixing¶

GDB-3904 Similairty search index does not preform special predicate validation properly, leading to “stuck” create index operations
GDB-3926 GeoSPARQL plugin displays wrong “current configuration” properties
GDB-3928 ES connection errors are not propagated to the WB

GDB 9.0.0¶

Released: 30 September 2019

Component versions¶

RDF4J	Connectors	Workbench
3.0.0	12.0.0	1.1.2

Important

The new release features a major redesign of the database Plugin API that simplifies the way to implement complex software logic next to the core database engine. Ontotext releases multiple plugins to the community as open source, demonstrating how to solve common tasks such as data virtualization (see MongoDB Plugin), a complex ranking of search results (see Autocomplete Plugin), new types of indexing (see GeoSPARQL plugin) and advanced graph analytics (see RDF Rank plugin).
GraphDB Workbench now becomes a separate open-source project enabling the fast development of knowledge graph prototypes starting from the default AngularJS administrative interface. Furthermore, the product includes an open source graphdb.js driver optimized for Node.js and other rapid development frameworks.
GraphDB 9.0 supports OpenJDK 11. The product continues to support OpenJDK 8 for its existing clients, as well as every new Oracle Java Long Term Support (LTS) version.
The product continues to support the RDF open-source community, and is now upgraded to RDF4J version 3.0.

GraphDB Engine¶

New features¶

GDB-3607 Move to OpenJDK and support for newer Java versions. Make OpenJDK 8 and 11 the officially tested and recommended Java versions
GDB-3649 Upgrade to RDF4J 3.0

Bug fixing¶

GDB-1416 Exceptions in query evaluation do not result in error messages
GDB-3494 GraphDB is trying to rollback non-existing transaction
GDB-3506 Concurrent requests for storage health checks may produce an error
GDB-3531 Exception executing simple query after PUT statements in a repo
GDB-3585 Suboptimal execution plan for construct with FILTER
GDB-3592 Deadlock when notification listeners are to be notified but they were garbage collected before that
GDB-3596 LiteralIndex failures within RepositoryRule
GDB-3643 Join of subqueries does not work correctly
GDB-3646 Error “Could not convert the query to our optimized model” reported during query evaluation containing MINUS
GDB-3703 Graph Replacement Optimization does not work with the Java API
GDB-3720 Compound transactions do not reflect change in size()
GDB-3830 OPTIONAL and Alt-prop-path causes mix-up of bindings
GDB-3843 Bulk update “getRealId() must be called in exclusive transaction or after precommit()”

GraphDB Workbench¶

New features¶

GDB-3619 Split Workbench code base from GraphDB and open-source the UI code
GDB-3728 Extend Cypress tests to cover all functionalities of the Workbench

Bug fixing¶

GDB-3248 Visual graph: expanding nodes “over owl:sameAs” not working properly
GDB-3642 Visual graph UI missing buttons

GraphDB Plugins¶

New features¶

GDB-1801 Open-source plugin API and plugins with developer examples
GDB-3308 Implement a way for plugins to know if they are in a cluster
GDB-3631 Plugin API: Redesign the plugin notification interfaces to handle the notifications about transactions
GDB-3633 Plugin API: Extend system info object passed at plugin initialization
GDB-3635 Plugin API: Add mechanism to access the fingerprint in plugins
GDB-3636 Plugin API: Cleanup unused parts of the Plugin API like GlobalViewOnData and MemoryConfigurable
GDB-3730 Update Plugin API, plugin location, and the Javadoc
GDB-3803 Open-source the GeoSPARQL plugin
GDB-3806 Open-source the RDF Rank plugin
GDB-3807 Open-source the Autocomplete plugin
GDB-3808 Open-source the Lucene FTS plugin
GDB-3813 Open-source the GeoSpatial plugin
GDB-3814 Open-source the Notifications Logger plugin
GDB-3815 Open-source the MongoDB plugin

Bug fixing¶

GDB-3309 Asynchronous RDFRank build through SPARQL in cluster breaks the cluster
GDB-3453 Explain the slow performance for rebuilding GeoSPARQL on Kadaster repository
GDB-3511 GeoSPARQL: Creating a quad plugin with precision >24 will result in an error when trying to create a geohash plugin
GDB-3554 Similarity indexes with training cycles use vector values from first iteration on search
GDB-3556 Cannot build predication similarity index over PubMed authors data
GDB-3584 Similarity text index -porterstemmer flag does not work
GDB-3599 Stopwords do not work with default analyzer in text similarity indexes

GraphDB Connectors¶

New features¶

GDB-3582 Upgrade connectors to latest major releases of Lucene/Solr (8.x) and Elasticsearch (7.x)

Bug fixing¶

GDB-3816 Wrong exporting of ‘elasticsearchClusterSniff’ setting from Connectors view
GDB-3819 Viewing existing connectors does not show the values of options that were set by default value and not explicitly
GDB-3905 Repair does not work when repairing a connector marked as “incompatible” by being created by an older version

GraphDB Cluster¶

Bug fixing¶

GDB-3766 Cluster incorrectly indicates IsWritable=false when one of its workers is down