Hi This *java.nio.channels.ClosedChannelException* is often caused by a connection timeout between your Spark executors and Alluxio workers. One simple and quick fix is to increase the timeout value to be larger alluxio.user.network.netty.timeout <https://docs.alluxio.io/os/user/stable/en/reference/Properties-List.html#alluxio.user.network.netty.timeout> in your Spark jobs.
Checkout how to run Spark with customized alluxio properties <https://docs.alluxio.io/os/user/stable/en/compute/Spark.html?utm_source=spark&utm_medium=mailinglist> . - Bin On Thu, May 9, 2019 at 4:39 AM u9g <lwx371...@163.com> wrote: > Hey, > > When I run Spark on Alluxio, I encounter the following error. How can I > fix this? Thanks > > Lost task 63.0 in stage 0.0 (TID 63, 172.28.172.165, executor 7): > java.io.lOException: java.util.concurrent.ExecutionExcep tion: > java.nio.channels.ClosedC hannelException > > Best, > Andy Li > > > >
