It was hanging because all of our clients were stuck at the below Thread dump
Name: main State: WAITING on org.apache.ignite.internal.ComputeTaskInternalFuture@3fd1be52 Total blocked: 5 Total waited: 5,975 Stack trace: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304) org.apache.ignite.internal.util.future.GridFutureAdapter.get0(GridFutureAdapter.java:157) org.apache.ignite.internal.util.future.GridFutureAdapter.get(GridFutureAdapter.java:115) org.apache.ignite.internal.AsyncSupportAdapter.saveOrGet(AsyncSupportAdapter.java:112) org.apache.ignite.internal.IgniteComputeImpl.broadcast(IgniteComputeImpl.java:250) com.tudor.datagridI.client.TradeOrderStoreHelper.processOrderHolders(TradeOrderStoreHelper.java:37) com.tudor.datagridI.TradingDataAccessImpl.saveOrders(TradingDataAccessImpl.java:399) orderserver.client.GridClient.updateOrderHoldersInGrid(GridClient.java:138) orderserver.Order.save(Order.java:3619) - locked orderserver.Order@732871ce orderserver.Order.save(Order.java:3563) - locked orderserver.Order@732871ce izi.izi_data_grid_ignite_test.OrderBooker.bookRegularOrder(OrderBooker.java:111) izi.izi_data_grid_ignite_test.OrderBooker.bookOrder(OrderBooker.java:33) izi.izi_data_grid_ignite_test.Main.bookOrders(Main.java:47) izi.izi_data_grid_ignite_test.Main.runExc(Main.java:83) izi.izi_data_grid_ignite_test.Main.run(Main.java:35) izi.izi_data_grid_ignite_test.Runner.run(Runner.java:37) izi.izi_data_grid_ignite_test.Runner.main(Runner.java:17) -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/IgniteCompute-broadcast-stuck-tp7255p7349.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.