Home » Search

About concurrency

101-110 of 110Refresh
Forum
1

Using of ConcurrentHashMap as attribute

Hello, it is possible to use an entity attribute of type java.util.concurrent.ConcurrentHashMap Your web site http://www.objectdb.com/object/db/database/features 'Object Model & Data Types' has no guidelines about this data type. Best regards You can persist a Map field holding a ConcurrentHashMap
Forum
1

wrong query result

concurrently. When you upgrade your schema you must make sure that the ObjectDB server
Forum
1

Several parallel threads to speed up query on one DB

tuning the configuration (e.g. the maximum concurrent threads). EKK
Issue
1

several times a day queries take several minutes

. Our system has a load of around 400 concurrent webSocket connections that normally only query (without updates, like
Issue
1

cannot delete objects after crash (see issue 2283)

of the sync mode by delaying returning from commit, gathering several concurrent committing
Result
1

ObjectDB version 2.7.5_04

Version 2.7.5_04 Added support of cascading delete using JDO (feature request #2329). Version 2.7.5_03 Attempt to improve concurrency by using lock free Synchronization (issue #2327). Version 2.7.5_02 Attempt to fix a NullPointerException (issue #2302, post 43). Version 2.7.5_01 Added an option
Issue
1

Best practise loading big data

. Let's separate the discussion: Use issue #2087 to discuss using a large number of concurrent open
Forum
1

multiple connection using share folder

. Use client-server mode or embedded-server mode to enable concurrent database access from multiple
Result
1

ObjectDB version 2.7.5_03

Version 2.7.5_03 Attempt to improve concurrency by using lock free Synchronization (issue #2327). Version 2.7.5_02 Attempt to fix a NullPointerException (issue #2302, post 43). Version 2.7.5_01 Added an option for eager background purge of weak references (issue #2302). Version 2.7.5 Improved
Result
1

ObjectDB version 2.7.5_05

Version 2.7.5_05 Added logging for "Failed to read from file" error (issue #2322). Version 2.7.5_04 Added support of cascading delete using JDO (feature request #2329). Version 2.7.5_03 Attempt to improve concurrency by using lock free Synchronization (issue #2327). Version 2.7.5_02 Attempt to fix