Aleksey Plekhanov created IGNITE-11671: ------------------------------------------
Summary: Thin client: Client may hang when connected to a starting server Key: IGNITE-11671 URL: https://issues.apache.org/jira/browse/IGNITE-11671 Project: Ignite Issue Type: Bug Components: thin client Reporter: Aleksey Plekhanov If the server start process has not completed yet, but NIO listeners already started, the client may never get a response for the handshake request. Exception on the server-side: {noformat} [client-connector-#6416%f3b837aa-d726-46b0-a58b-8cc6267c9f96%][ClientListenerProcessor] Runtime error caught during grid runnable execution: GridWorker [name=message-received-notify, igniteInstanceName=f3b837aa-d726-46b0-a58b-8cc6267c9f96, finished=false, heartbeatTs=1554209548706, hashCode=519781823, interrupted=false, runner=client-connector-#6416%f3b837aa-d726-46b0-a58b-8cc6267c9f96%] java.lang.NullPointerException at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.nextConnectionId(ClientListenerNioListener.java:334) at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.prepareContext(ClientListenerNioListener.java:313) at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.onHandshake(ClientListenerNioListener.java:251) at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.onMessage(ClientListenerNioListener.java:132) at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.onMessage(ClientListenerNioListener.java:48) at org.apache.ignite.internal.util.nio.GridNioFilterChain$TailFilter.onMessageReceived(GridNioFilterChain.java:279) at org.apache.ignite.internal.util.nio.GridNioFilterAdapter.proceedMessageReceived(GridNioFilterAdapter.java:109) at org.apache.ignite.internal.util.nio.GridNioAsyncNotifyFilter$3.body(GridNioAsyncNotifyFilter.java:97) at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at org.apache.ignite.internal.util.worker.GridWorkerPool$1.run(GridWorkerPool.java:70){noformat} This happens because NIO listeners start before {{GridDiscoveryManager}}. -- This message was sent by Atlassian JIRA (v7.6.3#76005)