engimatic opened a new issue, #189: URL: https://github.com/apache/arrow-java/issues/189
### Describe the usage question you have. Please include as many useful details as possible. ``` try (BufferAllocator allocator = new RootAllocator()) { // Server try (final CookbookProducer producer = new CookbookProducer(allocator, location); final FlightServer flightServer = FlightServer.builder(allocator, location, producer).build()) { try { flightServer.start(); System.out.println("S1: Server (Location): Listening on port " + flightServer.getPort()); } catch (IOException e) { throw new RuntimeException(e); } } } ``` And I handle mysql resultset like this: ``` ResultSet resultSet = statement.executeQuery(); ArrowVectorIterator iterator = JdbcToArrow.sqlToArrowVectorIterator( resultSet, config) ``` ``` public void handleArrowIterator(ArrowVectorIterator iterator, BufferAllocator allocator) { int index = 0; while (iterator.hasNext() && !listener.isCancelled()) { if (listener.isReady()) { try (VectorSchemaRoot root = iterator.next()) { index++; VectorUnloader unloader = new VectorUnloader(root); ArrowRecordBatch arb = unloader.getRecordBatch(); loader.load(arb); listener.putNext(); } } } listener.completed(); } ``` But when I force an outage of the client,listener.isCancelled() and listener.isReady() always false,The server is stuck in an endless loop.How to reslove it? Server exception message: ``` io.grpc.netty.NettyServerHandler -Stream Error io.netty.handler.codec.http2.Http2Exception$StreamException: Stream closed before write could take place at io.netty.handler.codec.http2.Http2Exception.streamError(Http2Exception.java:172) at io.netty.handler.codec.http2.DefaultHttp2RemoteFlowController$FlowState.cancel(DefaultHttp2RemoteFlowController.java:481) at io.netty.handler.codec.http2.DefaultHttp2RemoteFlowController$1.onStreamClosed(DefaultHttp2RemoteFlowController.java:105) at io.netty.handler.codec.http2.DefaultHttp2Connection.notifyClosed(DefaultHttp2Connection.java:357) at io.netty.handler.codec.http2.DefaultHttp2Connection$ActiveStreams.removeFromActiveStreams(DefaultHttp2Connection.java:1007) at io.netty.handler.codec.http2.DefaultHttp2Connection$ActiveStreams.deactivate(DefaultHttp2Connection.java:963) at io.netty.handler.codec.http2.DefaultHttp2Connection$DefaultStream.close(DefaultHttp2Connection.java:515) at io.netty.handler.codec.http2.DefaultHttp2Connection.close(DefaultHttp2Connection.java:153) at io.netty.handler.codec.http2.Http2ConnectionHandler$BaseDecoder.channelInactive(Http2ConnectionHandler.java:209) at io.netty.handler.codec.http2.Http2ConnectionHandler.channelInactive(Http2ConnectionHandler.java:417) at io.grpc.netty.NettyServerHandler.channelInactive(NettyServerHandler.java:628) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:248) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:241) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1405) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:248) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:901) at io.netty.channel.AbstractChannel$AbstractUnsafe$7.run(AbstractChannel.java:813) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:164) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) at io.netty.channel.nio.NioEventLoop.run(NioE ``` ### Component(s) FlightRPC -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org