MultipleThread « Database « Java Database Q&A





1. Multithreading - Avoiding and dealing with database deadlocks    stackoverflow.com

I am looking for a good strategy of dealing with database deadlocks from within a Java 6 application; several parallel threads could, potentially, write into the same table at the same ...

2. reliably reproducing db contention    stackoverflow.com

we experience with some regularity contention on a database table, and would like to evaluate a number of different options for resolving this issue. in order to do so, i need to ...

3. problem with synchronized method in java    stackoverflow.com

I have following implementation in Java where I am trying to use a synchronized method:

class dbAccess{  
     public synchronized void getGUID(){  
    ...

4. Java Multithreading    stackoverflow.com

I have a requirement where in I have to access the database and place those values in a list and then print those values using multiple threads.currently i use 2 threads ...

5. SYN_SENT issue from java program    stackoverflow.com

In my app, when my application server starts, i am creating 5 threads and each thread is a as400 server database connection. And each thread(java program) will make a as400 connection ...

6. Java multiple threads database access    stackoverflow.com

I want to ask what could be the best solution for multithreaded Java application to ensure that all threads access db synchronously. For example each thread represents separate transaction, and first ...

7. How to create a server that distributes workunits to clients?    stackoverflow.com

I need a java application that should manage a database to distribute work units to its clients. Effectively it's a grid application: the database is filled with input parameters for clients and ...

8. Database Pooler    stackoverflow.com

Hello i am trying to implement a database-object("connection") pooler for BerkeleyDB... I decided to use a singleton EJB propably or ENUM singleton implementation for this.. A final concurrenthash map would store database ...

9. Database JDBC using multicore vs isolation level overhead    stackoverflow.com

Hallo, I want to get data into a database on a multicore system with ative WAL using JDBC. I was thinking about spawning multiple threads in my application to insert data parallely. If ...





10. Does's CPU process could determine the speed potential of application    stackoverflow.com

I have two hardware. One is sitting in the front, receving user's input(Server A), the other is backend with database (Server B). Both Server using Java and multi processors. Server A ...

11. Get the data from databases for each primaryKey in parallel    stackoverflow.com

I have list of primary keys ex: empids, I want to get the employee information for each emplid from the database. Or rather, I want to get the data from ...

12. multiple threads dealing db    coderanch.com

13. multiple threads dealing db    coderanch.com

The JDBC Tutorial and Reference states All operations on java.sql and javax.sql objects are required to be multithread safe. They must be able to cope correctly with having several threads simultaneously calling the same object. In other words, a statement execution in one thread should not block an execution in another thread. In particular, JDBC drivers should operate correctly when used ...

14. multiple threads for database    coderanch.com

15. Fill database using multiple threads    coderanch.com

If I understand you correctly, you got a text file and a physical DBMS like MySQL or Oracle then you can use 1 thread to read data off the text file and another thread to insert data to the DB. This is like producer/consumer problem. The text file thread is the producer and DB is the consumer. The DB thread listens ...

16. Accessing a Database from multiple threads    forums.oracle.com

I meant that if someone has screwed up and was using the same connection in two threads, you couldn't speak of separate transactions and the ability to commit just one of them -- there would only be one transaction at a time on that one thread! I think we can all agree, that's a no-go.