Hi all, I am trying to run a program using the flink java library with ExecutionEnvironment.getExecutionEnvironment() from the command line using java -jar.
If I run the code in my machine (with four cores) or in a multi-node cluster (using yarn) the program runs normally, but if I want to run it on a machine with a single node and 32 cores using java -jar I get the following error: 02/21/2016 13:33:09 MapPartition (MapPartition at toBatches(ConversionToBatches.java:55))(29/32) switched to FAILED java.io.IOException: Insufficient number of network buffers: required 1, but only 0 available. The total number of network buffers is currently set to 2048. You can increase this number by setting the configuration key 'taskmanager.network.numberOfBuffers'. at org.apache.flink.runtime.io.network.buffer.NetworkBufferPool.createBufferPool(NetworkBufferPool.java:196) at org.apache.flink.runtime.io.network.NetworkEnvironment.registerTask(NetworkEnvironment.java:325) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:488) at java.lang.Thread.run(Thread.java:745) In this case (java -jar), I don’t know if or how I can increase the number of network buffers. Is there a way to do it without having to use yarn (as I don’t have hadoop installed)? Thanks, Ana
