Multi threading with CachedThreadPool











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I have server-client communication architecture where there is one server and 150 clients
The server-client communication happens via java NIO where all the clients send some or the other data every 10 seconds.
Previously we used to queue all the process messages and process all those in a single thread, as the number of clients are more so as the messages, server is not able to process all the messages instantly and there is a delay in processing in turn data loss.
So i have thought of implementing CachecThreadPool to process the tasks simultaneously as soon as they come, i have picked CachedThreadPool over FixedThreadPool because the tasks are short lived and many in number, below is the code for that.
The thread which receives messages from client calls ProcessorClass.processData(message) as soon as it receives the message.



public class ProcessorClass{

private static final Logger LOGGER = Logger.getLogger(ProcessorClass.class);
static ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newCachedThreadPool();

public static void processData(StringBuffer message) {
Runnable task = new Runnable() {
@Override
public void run() {
try {
LOGGER.info("Queue size:"+executor.getQueue().size());
if (message != null){
processMessage(message);
}
}
catch(Exception e) {
LOGGER.error("Error happened in run() method" + e.getMessage());
}

}
};
executor.execute(task);
}
public static void processMessage(StringBuffer message){
// all the processing of message such as DB operations goes here.
}


}
Doubts:




  1. How CachedThreadPool stores the message in the queue because i haven't defined any explicitly.

  2. Should i chose FixedThreadPool over this?

  3. Should i make my processMessage() method synchronized?


All the suggestions and review comments are welcome.









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    up vote
    0
    down vote

    favorite












    I have server-client communication architecture where there is one server and 150 clients
    The server-client communication happens via java NIO where all the clients send some or the other data every 10 seconds.
    Previously we used to queue all the process messages and process all those in a single thread, as the number of clients are more so as the messages, server is not able to process all the messages instantly and there is a delay in processing in turn data loss.
    So i have thought of implementing CachecThreadPool to process the tasks simultaneously as soon as they come, i have picked CachedThreadPool over FixedThreadPool because the tasks are short lived and many in number, below is the code for that.
    The thread which receives messages from client calls ProcessorClass.processData(message) as soon as it receives the message.



    public class ProcessorClass{

    private static final Logger LOGGER = Logger.getLogger(ProcessorClass.class);
    static ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newCachedThreadPool();

    public static void processData(StringBuffer message) {
    Runnable task = new Runnable() {
    @Override
    public void run() {
    try {
    LOGGER.info("Queue size:"+executor.getQueue().size());
    if (message != null){
    processMessage(message);
    }
    }
    catch(Exception e) {
    LOGGER.error("Error happened in run() method" + e.getMessage());
    }

    }
    };
    executor.execute(task);
    }
    public static void processMessage(StringBuffer message){
    // all the processing of message such as DB operations goes here.
    }


    }
    Doubts:




    1. How CachedThreadPool stores the message in the queue because i haven't defined any explicitly.

    2. Should i chose FixedThreadPool over this?

    3. Should i make my processMessage() method synchronized?


    All the suggestions and review comments are welcome.









    share







    New contributor




    raviraja is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have server-client communication architecture where there is one server and 150 clients
      The server-client communication happens via java NIO where all the clients send some or the other data every 10 seconds.
      Previously we used to queue all the process messages and process all those in a single thread, as the number of clients are more so as the messages, server is not able to process all the messages instantly and there is a delay in processing in turn data loss.
      So i have thought of implementing CachecThreadPool to process the tasks simultaneously as soon as they come, i have picked CachedThreadPool over FixedThreadPool because the tasks are short lived and many in number, below is the code for that.
      The thread which receives messages from client calls ProcessorClass.processData(message) as soon as it receives the message.



      public class ProcessorClass{

      private static final Logger LOGGER = Logger.getLogger(ProcessorClass.class);
      static ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newCachedThreadPool();

      public static void processData(StringBuffer message) {
      Runnable task = new Runnable() {
      @Override
      public void run() {
      try {
      LOGGER.info("Queue size:"+executor.getQueue().size());
      if (message != null){
      processMessage(message);
      }
      }
      catch(Exception e) {
      LOGGER.error("Error happened in run() method" + e.getMessage());
      }

      }
      };
      executor.execute(task);
      }
      public static void processMessage(StringBuffer message){
      // all the processing of message such as DB operations goes here.
      }


      }
      Doubts:




      1. How CachedThreadPool stores the message in the queue because i haven't defined any explicitly.

      2. Should i chose FixedThreadPool over this?

      3. Should i make my processMessage() method synchronized?


      All the suggestions and review comments are welcome.









      share







      New contributor




      raviraja is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I have server-client communication architecture where there is one server and 150 clients
      The server-client communication happens via java NIO where all the clients send some or the other data every 10 seconds.
      Previously we used to queue all the process messages and process all those in a single thread, as the number of clients are more so as the messages, server is not able to process all the messages instantly and there is a delay in processing in turn data loss.
      So i have thought of implementing CachecThreadPool to process the tasks simultaneously as soon as they come, i have picked CachedThreadPool over FixedThreadPool because the tasks are short lived and many in number, below is the code for that.
      The thread which receives messages from client calls ProcessorClass.processData(message) as soon as it receives the message.



      public class ProcessorClass{

      private static final Logger LOGGER = Logger.getLogger(ProcessorClass.class);
      static ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newCachedThreadPool();

      public static void processData(StringBuffer message) {
      Runnable task = new Runnable() {
      @Override
      public void run() {
      try {
      LOGGER.info("Queue size:"+executor.getQueue().size());
      if (message != null){
      processMessage(message);
      }
      }
      catch(Exception e) {
      LOGGER.error("Error happened in run() method" + e.getMessage());
      }

      }
      };
      executor.execute(task);
      }
      public static void processMessage(StringBuffer message){
      // all the processing of message such as DB operations goes here.
      }


      }
      Doubts:




      1. How CachedThreadPool stores the message in the queue because i haven't defined any explicitly.

      2. Should i chose FixedThreadPool over this?

      3. Should i make my processMessage() method synchronized?


      All the suggestions and review comments are welcome.







      java multithreading





      share







      New contributor




      raviraja is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







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      Check out our Code of Conduct.








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      asked 8 mins ago









      raviraja

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      raviraja is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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      Check out our Code of Conduct.



























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