Flink 1.11 submit job timed out

使用版本Flink 1.11，部署方式 kubernetes session。 TM个数30个，每个TM 4个slot。 job 并行度120.提交作业的时候出现大量的No hostname could be resolved for the IP address，JM time out，作业提交失败。web ui也会卡主无响应。

用wordCount，并行度只有1提交也会刷，no hostname的日志会刷个几条，然后正常提交，如果并行度一上去，就会超时。

部分日志如下：

2020-07-15 16:58:46,460 WARN org.apache.flink.runtime.taskmanager.TaskManagerLocation [] - No hostname could be resolved for the IP address 10.32.160.7, using IP address as host name. Local input split assignment (such as for HDFS files) may be impacted. 2020-07-15 16:58:46,460 WARN org.apache.flink.runtime.taskmanager.TaskManagerLocation [] - No hostname could be resolved for the IP address 10.44.224.7, using IP address as host name. Local input split assignment (such as for HDFS files) may be impacted. 2020-07-15 16:58:46,461 WARN org.apache.flink.runtime.taskmanager.TaskManagerLocation [] - No hostname could be resolved for the IP address 10.40.32.9, using IP address as host name. Local input split assignment (such as for HDFS files) may be impacted.

2020-07-15 16:59:10,236 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager [] - The heartbeat of JobManager with id 69a0d460de468888a9f41c770d963c0a timed out. 2020-07-15 16:59:10,236 INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager [] - Disconnect job manager 00000000000000000000000000000000@akka.tcp://flink@flink-jobmanager:6123/user/rpc/jobmanager_2 for job e1554c737e37ed79688a15c746b6e9ef from the resource manager.

how to deal with ？*来自志愿者整理的flink邮件归档