flink 1.6.3批任务 bug fix

flink 1.6.3在执行批任务的时候，如果operator的并行度不同，有些任务执行完，jobManager直接会kill掉未完成的任务,会抛以下异常

Caused by: org.apache.flink.runtime.io.network.netty.exception.RemoteTransportException: Lost connection to task manager 'zk03.td.com/172.26.125.25:34669'. This indicates that the remote task manager was lost.
        at org.apache.flink.runtime.io.network.netty.CreditBasedPartitionRequestClientHandler.exceptionCaught(CreditBasedPartitionRequestClientHandler.java:160)
        at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:285)
        at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:264)
        at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:256)
        at org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
        at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught

这个问题已经有人在github上解决，但没有合并到官网可下载的版本中
https://issues.apache.org/jira/browse/FLINK-10941

自己可以整理代码，build 发版，build好的包（已经在我们的项目中使用）地址： flink-dist_2.11-1.6.3-bugfix.jar