About concurrency

101-110 of 113Refresh
Forum
1

Unable to store AtomicInteger

In the docs, all serializable types should be persistable. However, when I tried to persist a field of type AtomicInteger, I got the following message: Message: Failed to commit transaction: Attempt to store an instance of a non persistable type java.util.concurrent.atomic.AtomicInteger I am using
Forum
1

Understanding Database max-threads objectdb.conf Settings Option

a semaphore that limits the number of threads that can access the database file concurrently (queuing
Issue
1

Use temporary files to enable very large transactions

to hold multiple versions for concurrent transactions in order to support MCC. We understand
Forum
1

using objectdb.jar in writing data to mariadb or mysql db

(see this stackoverflow thread) and can serve 200 or more concurrent connections in client-server mode. kaybel
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
Issue
1

Best practise loading big data

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