Examples of java.util.concurrent.ThreadPoolExecutor.allowCoreThreadTimeOut()

Class java.util.concurrent.ThreadPoolExecutor

Examples of java.util.concurrent.ThreadPoolExecutor.allowCoreThreadTimeOut()

java.util.concurrent.ThreadPoolExecutor.allowCoreThreadTimeOut()
Sets the policy governing whether core threads may time out and terminate if no tasks arrive within the keep-alive time, being replaced if needed when new tasks arrive. When false, core threads are never terminated due to lack of incoming tasks. When true, the same keep-alive policy applying to non-core threads applies also to core threads. To avoid continual thread replacement, the keep-alive time must be greater than zero when setting {@code true}. This method should in general be called before the pool is actively used. @param value {@code true} if should time out, else {@code false} @throws IllegalArgumentException if value is {@code true}and the current keep-alive time is not greater than zero @since 1.6

        }
    };


    private ThreadPoolExecutor createExecutor() {
        ThreadPoolExecutor exec = new ThreadPoolExecutor(0, Integer.MAX_VALUE, 60, TimeUnit.SECONDS, new SynchronousQueue<Runnable>(), factory);
        exec.allowCoreThreadTimeOut(true);
        return exec;
    }
}

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        .build();
    ThreadPoolExecutor pool =
        new ThreadPoolExecutor((5 < nThreads ? 5 : nThreads), nThreads, 3L,
            TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
    pool.setThreadFactory(tf);
    pool.allowCoreThreadTimeOut(true);
    return pool;
  }


  @Override
  protected void serviceStart() throws Exception {

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                maxThreads,
                keepAliveTime,
                TimeUnit.SECONDS,
                workQueue,
                Threads.newDaemonThreadFactory(toString() + "-shared-"));
            tpe.allowCoreThreadTimeOut(true);
            this.batchPool = tpe;
          }
          this.cleanupPool = true;
        }
      }

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                return new JobFutureTask<T>((JobRunnable)runnable, value);
            }
            
        };
        
        exec.allowCoreThreadTimeOut(true); // ... and allow core threads to time out.  This just keeps things clean when idle, and is nice for ftests modes, etc., where we'd especially like these not to linger.
        return exec;
    }


    /**
     * Subclasses FutureTask for the sole purpose of providing {@link #getCallable()}, which is used to extract the producer in the {@link JobBasedRoundRobinQueue}

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            * conf.getInt(HConstants.HBASE_CLIENT_MAX_TOTAL_TASKS,
              HConstants.DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS));
    ThreadPoolExecutor tpe =
        new ThreadPoolExecutor(coreThreads, maxThreads, keepAliveTime, TimeUnit.SECONDS, workQueue,
            Threads.newDaemonThreadFactory("MultiHConnection" + "-shared-"));
    tpe.allowCoreThreadTimeOut(true);
    this.batchPool = tpe;
  }
  
}

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      int maxThreads = 1;
      long keepAliveTime = 60;
      ThreadPoolExecutor pool =
          new ThreadPoolExecutor(1, maxThreads, keepAliveTime, TimeUnit.SECONDS,
              new SynchronousQueue<Runnable>(), Threads.newDaemonThreadFactory("hbase-table"));
      pool.allowCoreThreadTimeOut(true);
      return pool;
    }


    @Override
    public void prePut(final ObserverContext<RegionCoprocessorEnvironment> e, final Put put,

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      ThreadFactory threadFactory) {
    ThreadPoolExecutor boundedCachedThreadPool =
      new ThreadPoolExecutor(maxCachedThread, maxCachedThread, timeout,
        unit, new LinkedBlockingQueue<Runnable>(), threadFactory);
    // allow the core pool threads timeout and terminate
    boundedCachedThreadPool.allowCoreThreadTimeOut(true);
    return boundedCachedThreadPool;
  }




  /**

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                maxThreads,
                keepAliveTime,
                TimeUnit.SECONDS,
                workQueue,
                Threads.newDaemonThreadFactory(toString() + "-shared-"));
            tpe.allowCoreThreadTimeOut(true);
            this.batchPool = tpe;
          }
          this.cleanupPool = true;
        }
      }

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      maxThreads,
      keepAliveTime,
      TimeUnit.SECONDS,
      workQueue,
      Threads.newDaemonThreadFactory(this.getClass().toString() + "-rpc-shared-"));
    tpe.allowCoreThreadTimeOut(true);
    return tpe;
  }


  @Override
  public boolean replicate(ReplicateContext replicateContext) {

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         threadFactory = new DefaultThreadFactory(threadName, true);
      }


      LinkedBlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>(queueSize);
      ThreadPoolExecutor executor = new ThreadPoolExecutor(1, 1, 5, TimeUnit.SECONDS, queue, threadFactory, policy);
      executor.allowCoreThreadTimeOut(true);
      return executor;
   }


   /**
    * Return true if the driver appears to be JDBC 4.0 compliant.

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