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Starting from version 6, GraphDB now includes three separate products with their own version numbers: GraphDB Engine, GraphDB Workbench and GraphDB Connectors (this was an experimental feature in 6.0 and 6.1). New features and significant bug-fixes/updates for the last few releases are recorded here. Each component's full version numbers is given as: {panel}major.minor.build_number{panel}
e.g. 5.3.5928 where the major number is 5, the minor number is 3 and the build number is 5928.
The integrated releases have their own version, e.g. 6.2.0, 6.2.1 and so on.
Releases with the same major and minor version numbers do not contain any new features. The only difference is that releases with later build numbers contain fixes for bugs discovered since the previous release. New or significantly changed features are released with a higher major or minor version number.
{toc}
h1. GraphDB 6.5.0
Component versions:
|| Sesame || Engine || Workbench || Connectors ||
| 2.7.8 | 6.2.5 | 6.7.0 | 4.2.3 |
h5. Highlights
*GraphDB Cluster*
* Improved cluster stability in single DC setup
** Master will not start a replication if there is a single worker in ON state in the cluster, thus allowing the cluster to continue to serve requests
** Master will choose an up-to-date worker from transaction log when reporting self status
** Workers in the cluster will reject updates which are not sent trough the master
** Workers which are in an UNINITIALIZED state will not be available for serving requests
* Various fixes
** Lower memory footprint of workers due to a decreased query execution history kept in memory
** Corrected state of a worker in cases when low disk space causes a shutdown
*GraphDB Engine*
* BIND operator, which was not fully covered by GraphDB in previous version and relied on Sesame's implementation
* Query optimizer when dealing with multiple OPTIONALs
* Special characters are handled properly by RDF parser/serializer, e.g. white spaces in URL
* During the consistency checking phase, deleted statements in the current transaction will be ignored
* Enforced consistency of predicate statistics - these will be rebuilt if found inconsistent
*Workbench*
* Many new features and bug fixes
*Connectors*
* New features and bug fixes
h5. GraphDB Engine
Bugfixes:
* OWLIM-2429 BIND operator not fully covered by GraphDB's query optimizer
* OWLIM-2425 RDF parser and serializer doesn't handle properly special characters
* OWLIM-2421 Consistency checking rules fail to ignore deleted statements in the current transactions
* OWLIM-2421 Consistency checking rules fail to ignore deleted statements in the current transactions
* OWLIM-2418 SPARQL query with explicitly specified graph returns more results than the default graph
* OWLIM-2417 Sometimes the cluster doesn't detect that a worker is out of sync but instead marks the *others* to out of sync
* OWLIM-2427 Cluster workers should reject side updates
* OWLIM-2427 Cluster workers should reject side updates
...* OWLIM-2423 The entity pool(s) don't behave properly with request-scoped entities * OWLIM-2271 Fix replication client timeout
* OWLIM-2315 Master should choose an up to date worker (in transaction log) to report self status
* OWLIM-2538 Predicate statistics rebuilds after cluster restart on LDBC tests
* OWLIM-2548 Master started with an empty transaction log does not set the worker's state before the first write request
* OWLIM-2537 Sometimes the timeout for the replication socket on the master is not enough
* OWLIM-2086 Wrong results from DirectPlugin when query expands a filter to union
* OWLIM-1218 Incorrect evaluation for queries with multiple OPTONAL expressions; can lead to miss of relevant results
* OWLIM-1773 Worker left in a bad state after shutdown on "low disk space"
* OWLIM-2437 Joining two subqueries that share a variable and it is in an OPTIONAL is not done properly
* OWLIM-2403 Master doesn't replicate a single worker but marks the others as OUT_OF_SYNC
* OWLIM-2408 Replication in the cluster shouldn't be initiated if there is only one active worker
* OWLIM-2157 Backup/restore in cluster may fail if workers are created with a storage directory that isn't called "storage"
* OWLIM-2469 UNINITIALIZED workers were marked as readable which can cause queries to be executed on them
* OWLIM-2468 Wrong max element of a page set in the index
* OWLIM-2511 BINDTriplePattern's logic for restrictVars() makes BIND in UNION always to be placed in the beginning
* OWLIM-2339 Report back to an unknown peer master which sent sync data that it will be ignored
* OWLIM-2510 Increasing worker's memory usage due growing execution history
Improvements:
* OWLIM-1535 GraphDB EE users should be able to create/load SE repositories
* OWLIM-2492 When starting a new worker with empty repo other workers shouldn't replicate from it
* OWLIM-2227 Verify the predicate statistics on start and rebuild them if needed
* OWLIM-2415 Increase replication speed in cluster using compression
* OWLIM-2461 Initial worker state checking upon intialization on empty TX log
Known issues:
* OWLIM-2381 Count graph query returns bigger number than the actual statements in the graph
* OWLIM-2407 Backup and restore in the cluster shouldn't timeout the HTTP request blindly
h5. GraphDB Workbench
Bug fixes:
* WB-575 Unable to cancel remote content import
* WB-642 Limit CONSTRUCT results internally rather than by SPARQL LIMIT
* WB-646 Queries with many comments do not execute correcly on a remote location
* WB-667 Workbench not loading properly on slower networks
* WB-678 Misdetecting a GraphDB instance in the same tomcat when Workbench is deployed in the root context
* WB-680 Workbench not using the optimised Ontotext N-Triples and N-Quads parsers
* WB-698 Clicking outside the Connector create form is interpreted as cancel
* WB-700 Adding fields in the Connector create form copies values from previous field
* WB-706 Raw HTML shown in some location connection errors
* WB-710 Incorrect JSON generated for some checkboxes in the Connector create form
Improvements:
* WB-252 Filtering for the server files list
* WB-273 New security mode "free access" that allows access to some functionality for non-authenticated users
* WB-319 Graph filtering in the export view based on expressions
* WB-395 Add pagination to SPARQL results
* WB-455 Improved SPARQL view: horizontal and vertical view, editor only, results only
* WB-612 New context view under Data/Context
* WB-613 Add load timing information for local imports
* WB-640 Show the location in the navigation bar
* WB-681 Better error handling in the SPARQL editor when the repository cannot be initialised
* WB-699 Restored copy connector button (same as WB 6.5.x)
h5. GraphDB Connectors
Bug fixes:
* STORE-215 Wrong evaluation of next hop IN() in filter when next hop does not exist
* STORE-216 Wrong evaluation of negated BOUND() in filter
* STORE-217 Not possible to use BOUND() with next hop or PARENT() in filter
Improvements:
* STORE-198 Allow multiple property chains per field
* STORE-218 Elasticsearch upgraded to 1.7.2
h1. GraphDB 6.4.4
Highlights:
* bug fixes in the Workbench
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.4 | 6.6.3 | 4.1.2 |
h5. GraphDB Engine
* No changes
h5. GraphDB Workbench
Bug fixes:
* WB-682 Updates execute but report fake generic error
* WB-683 Spinner on update doesn't go away in Safari
h5. GraphDB Connectors
* No changes
h1. GraphDB 6.4.3
Highlights:
* bugfixes in the engine
* explain plan improvement (experimental)
* improved diagnostics and notifications in the cluster
* bug fixes in the Workbench
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.4 | 6.6.2 | 4.1.2 |
h5. GraphDB Engine
Features and improvements:
* OWLIM-2344 Additional JMX notifications in the master
* OWLIM-2398 Ignore n number of faults in the worker to make the status reporting stable
* OWLIM-2318 Show cluster status in the MBean
* OWLIM-2387 New worker statuses in master - REPLICATION_SERVER, REPLICATION_CLIENT
* OWLIM-2172 Alternative explain plan accesible through onto:experimental-explain that produces much better results than the old explain plan
* OWLIM-2380 Explain plan support for CONSTRUCT, DESCRIBE and ASK queries
Bugfixes:
* OWLIM-2389 Master not reporting failed transaction to a client
* OWLIM-2383 Reordering PluginTriplePatterns introduces inconsistent query plans with duplicates
* OWLIM-2385 Failing the compile PIE file with error incompatible types required: java.lang.String found: boolean
* OWLIM-2395 Long FILTERs with more than 16 OR clauses are incorrectly optimized
* OWLIM-2346 Backup operation makes the cluster unresponsive
* OWLIM-2394 VALUES with single BindingSet before BIND is converted to Filter (as a result of optimization) but then disappears from the query after SubQuery.optimize()
* OWLIM-2378 rdfs:Resource resource appears from nowhere after a rulset change
* OWLIM-2374 JVM garbage collection shouldn't be initiated when cleaning old connections
* OWLIM-1532 Worker hasn’t recovered after clearing
* OWLIM-1576 Build the name of the ClusterInfo bean from the master repository name and not the current Thread name
* OWLIM-2370 Unable to delete statements from GraphDB
* OWLIM-2386 Exceptions on begin transaction are not handled properly
* OWLIM-2284 Exception when importing large files
* OWLIM-2367 The database engine shows incorrect repository size
* OWLIM-2376 Failing the compile PIE file with error incompatible types required: java.lang.String found: boolean
* OWLIM-2307 Negative number of Pending Writes showing in JMX properties of the master
* OWLIM-2238 NQuadsSimpleParser does not handle baseUri properly
* OWLIM-2399 Optimization for IN -> VALUES fails to recognize NOT IN operator
h5. GraphDB Workbench
Bug fixes:
* WB-105 Some errors on query execution not reported to user
* WB-635 Error reporting for unreachable locations
* WB-636 Access denied when trying to execute query
* WB-637 Unable to download results from System repository
* WB-639 Workbench cannot load settings from previous releases
* WB-671 No permission to execute SPARQL queries over SSL if security is enabled
h5. GraphDB Connectors
* No changes
h1. GraphDB 6.4.2
Highlights:
* bugfixes in the engine
* explain plan improvement (experimental)
* storage tool improvement
* improve data consistency in EE
* improvements and fixes for some basic scenarios in cluster environment - rolling upgrade, backup, replication
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.3 | 6.6.1 | 4.1.2 |
h5. GraphDB Engine
Features:
* OWLIM-2172 Explain plan improvments
* OWLIM-2178 Cluster data consistency per connection
* OWLIM-1368 SPARQL 1.1 VALUES implementation
* OWLIM-2281 Read-only mode for master
* OWLIM-2283 Strict consistency mode for master
* OWLIM-2282 Suspend-backup flag for master
* OWLIM-2199 Storage tool 'scan' command - groups statements by flags and compare counts for each group between indexes
* OWLIM-2313 Storage tool 'export' command
* OWLIM-2198 Storage tool 'repair' command - compares and updates all indexes
* OWLIM-2354 New JMX command to flush and shutdown GDB repository
* OWLIM-2358 Client Failover API - configurable timeout before giving up requests and run-time re-configuration support
Bugfixes:
* OWLIM-2353 Fix: Reads stop after 2 workers are taken down in 1m3w setup
* OWLIM-2197 Fix: Invalid FILTER clause (?a = x && ?a = y) return false positive results than the old explain plan
* OWLIM-2333 Fix: A worker reports different fingerprints when initialized for first time and after restore
* OWLIM-2250 Fix: Investigate performance degradation and wrong results on queries in GraphDB 6.2.2 compared to 6.1.8410
* OWLIM-2351 Fix: Ruleset with a specific consistency checking rule fails to deliver a descriptive exception
* OWLIM-2369 Fix: Adding non-existing worker + restart of the master leads to less workers shown in JMX
* OWLIM-2341 Fix: Correct the console messages produced by the storageTool when rebuilding indexes files.
* OWLIM-2248 Fix: Properly patch the logback.xml configuration file in the enterprise distribution
* OWLIM-2316 Fix: Large queries crash GraphDB with OutOfMemoryError
* OWLIM-2337 Fix: Deadlock when running the finalizer in sail connection impl might result in a deadlock
* OWLIM-2310 Fix: Group by queries are not stopped by timeouts since 6.1.SP4
h5. GraphDB Workbench
* No changes
h5. GraphDB Connectors
* No changes
h1. GraphDB 6.4.1
This release of GraphDB contains some fixes for the Workbench. If you use the Workbench we strongly recommend you to upgrade.
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.2 | 6.6.1 | 4.1.2 |
h5. GraphDB Engine 6.2.2
No changes.
h5. GraphDB Workbench 6.6.1
* WB-611 Fix: Export not working when security is ON
* WB-607 Fix: Workbench behind some proxies doesn't know what port for the repository cookie to check
* WB-604 Fix: Unreachable location makes cluster manager unusable
* WB-603 Fix: Cluster view doesn't work when you have locations that were added with localhost only
* WB-602 Fix: Non initialized masters in the cluster view are disabled and the reason is misleading
* WB-601 Fix: Adding invalid values in the edit dialog of the location closes the dialog and doesn't save the values
* WB-600 Fix: First attached location is not properly validated
h5. GraphDB Connectors 4.1.2
No changes.
h1. GraphDB 6.4.0
This release of GraphDB focuses on the usability and stability of the Workbench. If you use the Workbench we strongly recommend you to upgrade. The release also introduces support for Blueprints RDF/Gremlin and SPARQL-MM. There are no changes in the Engine or the Connectors.
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.2 | 6.6.0 | 4.1.2 |
h5. GraphDB Engine 6.2.2
No changes.
h5. GraphDB Workbench 6.6.0
- Improved overall usability
- Tens of bugs fixed
- New: Single page application for faster loading
- New: Improvements in Users management
-- users can have permissions to a repository in a particular location only
-- non-admin users can change their passwords
- New: Status of imported server files kept per repository
- New: Improvements to the SPARQL editor
-- tracking of syntax errors in the name of each tab
-- creating links to saved queries
- Creating repositories through TTL files
- Revised REST API
-- managing multiple locations and repositories
-- user and permissions management
- Numerous visual and presentational changes
h5. GraphDB Connectors 4.1.2
No changes.
h5. Other
- Support for Blueprints RDF
- Support for SPARQL-MM
h1. GraphDB 6.3.1
This is a release of GraphDB that addresses critical issues in the Connectors. If you use the Connectors we strongly recommend you to upgrade. There are no changes in the Engine or the Workbench.
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.2 | 6.5.2 | 4.1.2 |
h5. GraphDB Engine 6.2.2
No changes. This is a release of GraphDB that includes changes only in the Workbench and the Connectors. If you use the Connectors or the Workbench we strongly recommend you to upgrade.
h5. GraphDB Workbench 6.5.2
* WB-198 Fix: Changing the password of the default admin user works only until tomcat is restarted
* WB-490 Fix: Adding a location that was autocompleted in the browser results in an error
h5. GraphDB Connectors 4.1.2
* STORE-202 New: Failure to access a single Lucene instance on repo init should not disable the connector
* STORE-206 Fix: clear() or clear(context) does not update the index
* STORE-207 Fix: Wrong query execution when multiple joins are used in SPARQL
* STORE-210 Fix: Copy fields that contain URIs are not tracked as URIs and not returned as URIs when used in facet search
h1. GraphDB 6.3.0
Highlights:
* bug fixes in the Connectors and the Workbench
* no changes in the engine
Component versions:
||Sesame||Engine||Workbench||Connectors||
| 2.7.8 | 6.2.2 | 6.5.2 | 4.1.0 |
h5. GraphDB Engine 6.2.2
No changes. This is a release of GraphDB that includes changes only in the Workbench and the Connectors. If you use the Connectors or the Workbench we strongly recommend you to upgrade.
h5. GraphDB Workbench 6.5.2
* WB-198 Fix: Changing the password of the default admin user works only until tomcat is restarted
* WB-490 Fix: Adding a location that was autocompleted in the browser results in an error
h5. GraphDB Connectors 4.1.0
* STORE-165 New: Improved splitting for facet field values
* STORE-191 Fix: Lucene connector does not index xsd:dateTime properly
* STORE-192 Fix: Invalid values in typed literals are fatal but should rather be ignored (Lucene)
* STORE-193 Fix: Field sync option "facet" not interpreted correctly (Lucene)
* STORE-194 Fix: The field option "indexed" is not interpreted correctly
* STORE-197 Fix: Entity filter graph() not working correctly for statements in named graphs
* STORE-200 New: Upgrade Lucene to 4.10.4
h1. GraphDB 6.2.2
Highlights:
* bugfixes
* Storage tool enhancements
h5. GraphDB Engine 6.2.2
Features:
* OWLIM-2151 Storage tool discovers wrong page size in the page index and storage files
* OWLIM-2199 Storage tool index consistency check - groups statements by flags and compares counts for each index
Bugfixes:
* OWLIM-2082 Inconsistencies in GraphDB collection identified by the StorageTool
h5. GraphDB Workbench 6.5.1
* no changes
h5. GraphDB Connectors 4.0.1
* no changes
h1. GraphDB 6.2.1
Highlights:
* New Transactional Entity Pool
* Connectors - major imrovements and new features
* Parallel Reasoning in LoadRDF
* Workbench - new Import, Export and Repository views
* The Lucene connector is now included in GraphDB SE
h5. GraphDB Engine 6.2.1
Features:
* OWLIM-1682 Redesign the Entity pool so that it becomes transactional.
A new [transactional entity pool|GraphDB-SE Entity Pool] has been created. This allows the Connectors to be run in cluster mode.
* OWLIM-1810 Parallel inference
The [LoadRDF tool|GraphDB62:GraphDB-SE LoadRDF tool] now supports parallel (multithreaded) reasoning mode. The improvement of the loading speed is between 25% and 100%, measured on SPB-64m and Wordnet datasets, respectively.
Miscellaneous & bug fixes:
* \[Enterprise\] improved reporting for causes of replication failure
* \[Enterprise\] Detect and report missing master URL
* Made plugins aware of whether the entity pool is transactional (the plugins can call EntityPool.isTransactional())
* Added fingerprint tracking for the entity pool
* StorageTool - the tool is now part of the official documentation. The scan report now says whether the repository image is OK or not, in addition to the number of statements reported for each index
* LoadRDF uses lock-free data structure for faster multithreaded inference
* LoadRDF - the reverse cache option was removed
* GRAP-4 A fix for anomalous query behaviour
* OWLIM-2069 Fixed minor memory leak (which was present in OWLIM 5.4 as well)
* OWLIM-2086 Fix: The vars of the PluginPattern were not cloned (this potentially leads to a wrong result)
* OWLIM-2177 Fix: Inconsistency checks abort the transaction but the statements are still there on further transactions
h5. GraphDB Workbench 6.5.1
Features:
* OWLIM-2021 New Import View
*- the import is now asynchronous and keeps the state between restarts
*- there are two new ways to import a file - from a text area and from a data URL
*- native support for chunking + retry for each import
*- REST endpoints for everything which can be reused by clients
*- much better UI
* OWLIM-2009 Create a new overhauled repository view based on Angular JS with better user experience
*- rethink the structure of the page so the active location is moved at the top along with the repositories
*- create a RESTful API that will allow client to do locations management through RESTful endpoints
*- lazy initialization for repositories
* OWLIM-2022 Create a new export view based on Angular JS
*- Exporting the whole repository should be much more explicit now
*- The export view now only uses the Sesame endpoints
* OWLIM-2087 The import operation now sends the input stream directly to Sesame (instead of uploading a temp file first)
* OWLIM-2089 Initialize the repositories as lazily as possible
* OWLIM-1643 Fixed: First load of workbench interface is too slow in tomcat
Overall changes:
* Removed the same as from the SPARQL view because it was leading to major bugs
* \~/.owlim-workbench is changed to \~/.graphdb-workbench so previous state in the workbench will be lost. There are changes to the contents of this folder, so a simple copy/rename of the old folder won't work.
Bugfixes:
* OWLIM-2146 Fix the label in add repository view to represent the parameters that were mentioned in the documentation
* OWLIM-2139 Workbench locks when trying to connect to location which is not currently available
* OWLIM-2137 The JMX connection and Sesame discovery don't work on AWS
* OWLIM-2120 JMX is not auto-configured properly when we do same container Sesame auto-discovery
* OWLIM-2119 Copying/sharing the current query doesn't work properly
* OWLIM-2016 Unable to remove/edit query samples from FireFox
* OWLIM-2005 Unicode text gets scrambled in SPARQL query window of GraphDB Workbench
* OWLIM-1999 Selecting a local location with repositories for another edition makes the UI unusable
* OWLIM-1997 The user should be able to change the password if there is no repository selected
* OWLIM-1975 Cluster view is not available in the menus
* OWLIM-1973 Unable to setup cluster with file location
* OWLIM-1964 SPQRQL view should allow users with read only access to make selects to a repository
* OWLIM-1963 Unable to SignOut from SPARQL View
* OWLIM-1961 Unable to save a long sample query
* OWLIM-1959 We shouldn't allow repository locations that are relative directories
* OWLIM-1958 Vertical scroll bar is over Save and Copy in the sparql view
* OWLIM-1930 Creating a master repository shouldn't result in an exception view but we should just show the repository as a non write repo
* OWLIM-1913 Workbench doesn't shutdown the repository manager on Tomcat shutdown
* OWLIM-1909 Workbench does not report error properly when it cannot load repository from a remote endpoint
* OWLIM-1877 Deleting a repository that is in the currently selected remote location through another place results in inconsistent state
* OWLIM-1874 Inferred and explicit statement count are inverted in the popover
* OWLIM-1864 There is no proper error message when you connect to a non existing remote location
* OWLIM-1826 Restarting the workbench doesn't activate the repository from last time because of NPE
* OWLIM-1824 Exception when paging through repository graphs
* OWLIM-1823 Workbench does not show additional column in results
* OWLIM-1819 Import doesn't support BinaryRDF (.brf)
* OWLIM-1785 Unable to get system info if there isn't location selected
* OWLIM-1764 Repository size is \-1 and the reason is not available
* OWLIM-1782 Properly start the workbench if the directory for the location from the last time is missing and cannot be created
* OWLIM-1759 Error message appears when deleting a master repository
* OWLIM-1647 When the name of the repository is big enough the icons go on the next line and cannot be clicked
h5. GraphDB Connectors 4.0.1
* Solr and Elasticsearch now work in a cluster (EE edition only)
* Full support for default values: plain literals, literals with a datatype, literals with languages, URIs
* Full support for matching literal languages
* More control over how data is mapped:
*- field options more closely reflect the options in Lucene/Solr/Elasticsearch
*- control over how RDF literals are mapped to Lucene/Solr/Elasticsearch types
* Support for many more types of faceting and aggregations in Solr and Elasticsearch, e.g. ranges and histograms
* Improvements and extensions to the entity filter
* Bug fixes and optimizations
h1. GraphDB 6.1-SP3
This Service Pack 3 build addresses some reported problems with 6.1
h5. GraphDB Engine 6.1-b4371143
* OWLIM-1888 Better inference performance for datasets with big number of classes and onProperty restrictions
* Fixed a problem where queries containing UNION and BIND were under certain circumstances returning incorrect results
* New merge command for the storage tool
* OWLIM-1932 Count from graph [http://www.ontotext.com/count] does not work for describe queries
* OWLIM-1934 Removed some old and unwanted namespaces that were included by default
* OWLIM-1928 Added reversed numeric and date literal indices for better performance
h5. GraphDB Workbench 6.4.1
- See all the release notes here: [https://confluence.ontotext.com/display/GraphDB6/GraphDB-Workbench+Release+Notes]
h1. GraphDB 6.1-SP1
This Service Pack 1 build addresses consistency issue with the GraphDB Storage.
h2. GraphDB 6.1.8410
- fixed: [owlim-1853|owlim-1853] LoadRDF under Windows sometimes does not include statements in the PSO index and the indexes are incosistent;
- Added a check/warning to see if there is enough memory for the entity pool when it gets restored from persistence (-Xmx - cache-memory should be >= entity pool size * 1.25, i.e. 25% overhead is left for the datatype index and other in-memory structures included in the entity pool and for other purposes, e.g. for running queries).
h2. GraphDB Workbench 6.3.2
- See all the release notes here: [https://confluence.ontotext.com/display/GraphDB6/GraphDB-Workbench+Release+Notes]
h1. GraphDB version 6.1
Highlights:
- *Much faster write transactions* for small insert/update/delete operations on large repositories. Results on LDBC [Semantic Publishing Benchmark|http://ldbcouncil.org/developer/spb] (SPB) at 50M went up from 32 read and 12 write queries per second in ver. 6.0 to 40 reads/s and 31 writes/s in ver. 6.1. The improvement gets even more visible and SPB at 1B scale: from 10 reads/s and 2 writes/s in ver. 6.0 to 11 reads/s and 10 writes/s in ver. 6.1. In summary, GraphDB 6.1 is able to handle twice more updates at 50M scale and 5 times more updates at scale of 1 billion statements. This way GraphDB 6.1 is already capable to deal with true Dynamic Semantic Publishing scenario, like the one of [BBC|http://www.bbc.co.uk/blogs/legacy/bbcinternet/2012/04/sports_dynamic_semantic.html], at a scale of 1 billion statements and higher.
See more: [http://www.ontotext.com/graphdb-benchmark-results/]
- *Improved load capabilities for large new datasets in live databases* instances. Scenario description: there is a production cluster with average load - running LDBC-50m (SPB) with 4 reading threads (doing select queries) and 1 writing thread (doing update queries). We need to add a large dataset (e.g. DBPedia) with hundreds of millions statements -- as fast as possible, but without disrupting the overall cluster speed too much (not introducing write latency of more than 1-2s). The data set doesn't need inference, so it is loaded with the empty rule set.
Our implementation introduces a new "magic" statement (u, u, u), where u=<[http://www.ontotext.com/useParallelInsertion]>. If this statement is inserted in the beggining of the transaction, then the data will be loaded almost twice faster (it reuses parts of the load-chain from LoadRDF tool) and also the engine will temporarily switch the ruleset to 'emtpy'. We found that splitting the data set into 50k chunks is a good compromise between high loading speed and lower latency increase of parallel updates.
- Small *improvements in the bulk loading tools (LoadRDF)*. It is possible to load different files into different contexts now, as well as provide Statements programmatically to it. See the page for the LoadRDF for the details. [GraphDB-SE LoadRDF tool|GraphDB6:GraphDB-SE LoadRDF tool]. These improvements, combined with the increased update speed, allow us to load the English part of DBPedia 2014 (566M statements), in less than an hour at speed of 179 905 statements/sec.
- Improvements in *GraphDB Workbench*: The focus with this release was on *security* (users, roles) as well as small stability and usability improvements.
This is an integrated release that includes:
- GraphDB Engine 6.0.8274
- GraphDB Workbench 6.2.3
h1. GraphDB version 6.0-RC6
This is an integrated release that includes:
- GraphDB Engine 6.0.8210
- GraphDB Workbench 6.2.2
- GraphDB Connectors 3.1.0
h2. GraphDB Engine 6.0.8120
- Fixed Lucene plugin to support Custom Analyzers/Scorers (this was broken on 6.0 releases due to plugin classloader not loading jars from the plugin directory)
- [OWLIM-1730|OWLIM-1730] fixed handling of a failed initialisation within LiteralsPlugin
- [OWLIM-1712|OWLIM-1712] Query Optimizer does not apply 'strong' equality within FILTER when bot variables are used as subject of some statement patterns
- OWLIM-1615: Fixed how running queries are handled on shutdown
h2. GraphDB Workbench
- the full list of changes in the latest version is available in this page: [GraphDB-Workbench Release Notes|GraphDB6:GraphDB-Workbench Release Notes]
h1. GraphDB version 6.0-RC5
This is an integrated release that includes:
- GraphDB Engine 6.0.8070
- GraphDB Workbench 6.0.2
- GraphDB Connectors 3.0.0.RC2
h2. GraphDB Engine 6.0.8070
h3. Major changes:
- Query monitoring via JMX - the full text of the query is now visible
- Fixes for the Constraint Violation support & multiple rulesets
- Faster update speeds
-- Now using GraphDB Custom NTriples/NQuads parser by default (so NTriples, NQuad formats are parsed faster than other formats)
-- when a transaction is using the *empty* ruleset, the commit can added to all indexes in parallel. In order to use this experiment feature, add the special system statement: \_:b <[http://owlim.ontotext.com/owlim/useParallel]> \_:b in the beginning of the transacton. This makes sense for larger transactions (10K statements and above).
h3. Full list of changes:
- OWLIM-1628 Added a fix of the issue of not being able to explore a ruleset when the empty ruleset was set initially.
- OWLIM-1626 RepositoryException in Worker is not thrown by the Master
- OWLIM-1600 Query returns no results when using FILTER and BIND(if(...)) in it.
- T-10 Implemented automatic entity pool restore procedure which can recover a truncated entity pool and removes the statements from the repo using the IDs beyond the new entity pool size
- OWLIM-1603 Owlim crashes with lock error without obvious reasons (there is no other process that might have locked the repo).
- OWLIM-1592 Queries with at least one sub-select which intersect with an ordinary block of statement patterns perform poorly because of multiple clones and transforms of the Sesame's query model to Owlim's one.
- OWLIM-1593 Fixed bug in MainQuery.clone() (when using Subselect and there are OPTIONALs)
- OWLIM-1572 Query Monitoring - show query text instead of query id
- OWLIM-1559 Fixed property path bug when same property paths are repeated in the query
- F-320 JMX: NumberOfExplicitTriples and NumberOfTriples shows \-1 even though data has been written to the triple store
- OWLIM-1563 Fixed the issue with custom ruleset + disable-sameAs=true.
- OWLIM-1559 Implemented a shortcut in the MINUS operator which allows for faster calculation when the MINUS is over two subqueries with one triple pattern (which may have filters).
h2. GraphDB Workbench
- the full list of changes in the latest version is available in this page: [GraphDB-Workbench Release Notes|GraphDB6:GraphDB-Workbench Release Notes]
h2. GraphDB Connectors (experimental)
- the full list of changes in the latest version is available in this page: [GraphDB6:GraphDB Connectors Release notes]
h1. GraphDB version 6.0-RC4
This is an integrated release that includes:
- GraphDB Engine 6.0.7914
- GraphDB Workbench 6.0.1
- GraphDB Connectors 3.0.0.RC2
h1. GraphDB version 6.0-RC3 (build 7914)
h2. Fixes:
* The plugins were moved to <webapps>/openrdf-sesame/WEB-INF/classes/plugins
* Running GraphDB under embedded Tomcat failed with NPE (because of non existing webapps/ folder)
h1. GraphDB version 6.0-RC2 (build 7892)
h2. Improvements:
* Added mini LDBC Semantic Publishing Benchmark ([http://ldbc.eu]) into benchmark/ldbc-spb folder in the distribution
* The plugins are now in <webapps>/openrdf-sesame/plugins folder. Lucene plugin is enabled by default. This could be overwritten by the
\-Dregister-external-plugins option
* Minor rearrangement of the files in the main distribution folder (all .pie files are put into rules/ subfolder, the scripts into scripts/ subfolder)
h2. Fixes:
* Fixed issue with the default/evaluation license
* Fixed issue with the LoadRDF tool
h1. GraphDB-SE Release notes
h2. Version 6.0 (build 7784)
* Faster writes in SAFE Mode (OWLIM 5.5 improvement which lead to incompatible binary formats between 5.4 and 5.5+)
* LoadRDF tool for faster bulk loading of data; speeds \~100KSt/s and above, without inference
* Explain Plan like functionality
* LVM-based Backup and Replication
h2. Fixes:
* Databases created with one setting of the "entity-id-size" parameter (32 vs 40-bit) and opened with another setting, would crash in versions prior to 6.0. Now an exception is thrown and the repository is not initialized.