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About concurrency

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Embedded & Activation & Scalation

time.. ?   Alex Multiple processes cannot write to the same ObjectDB database concurrently. Future
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Embedded mode usage question

. For real concurrent multi threading you just have to use a separate EntityManager for every thread
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Exception on creation when running multithreaded

.   Any ideas regarding what may be the cause for this exception? I could understand a concurrency
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Explorer doesn't open file

a specific field of the type java.util.concurrent.TimeUnit. Could you please check if after changing
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Externalising persistence.xml properties in Glassfish?

to the container? I'm concurrently developing actively with ObjectDB but also using PostgreSQL
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How to do multithreading with embedded ObjectDB

, rather than concurrently:     synchronized (lock) {         em.createQuery("UPDATE Point SET x = x + 1
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Index causes increased memory usage

concurrently? Yes, we were tinkering with that value yesterday and I recorded some results.  I don't
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Internal error

by a concurrent thread while the query was executed? Any other details regarding this unexpected
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internal object DB locking in an embedded multi threaded application

Hi, we are using Embeded objectDB 2.4.4_06 in a highly multithreaded concurrent manner and we have noticed a performance problem in our application that seems to be attributed to ObjectDb's internal locking. When profiling our app in JVisualVm we notice a large number of threads are blocked
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InternalException

Trying to move a project from test into production phase, I have started to get internal exceptions when working on large data sets: java.util.concurrent.ExecutionException: com.objectdb.o.InternalException: Unexpected internal exception .... Caused by: com.objectdb.o.InternalException