flink savepoint 异常

本人用flink 1.10.1版本进行savepoint时遇到下列错误，暂时不清楚错误的原因，特来寻求帮助，麻烦大佬们看看

已经排除反压和重启的原因，checkpoint超时设置了十分钟，conf配置增加客户端连接master的时间，但还是出现异常。

命令

flink savepoint -yid application_1604456903594_2381 fb8131bcb78cbdf2bb9a705d8a4ceebc hdfs:///hadoopnamenodeHA/flink/flink-savepoints

异常

The program finished with the following exception:

org.apache.flink.util.FlinkException: Triggering a savepoint for the job fb8131bcb78cbdf2bb9a705d8a4ceebc failed. at org.apache.flink.client.cli.CliFrontend.triggerSavepoint(CliFrontend.java:631) at org.apache.flink.client.cli.CliFrontend.lambda$savepoint$9(CliFrontend.java:609) at org.apache.flink.client.cli.CliFrontend.runClusterAction(CliFrontend.java:841) at org.apache.flink.client.cli.CliFrontend.savepoint(CliFrontend.java:606) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:908) at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:966) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1836) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:966) Caused by: java.util.concurrent.CompletionException: java.util.concurrent.CompletionException: org.apache.flink.runtime.checkpoint.CheckpointException: Failed to trigger savepoint. Failure reason: An Exception occurred while triggering the checkpoint. at org.apache.flink.runtime.scheduler.SchedulerBase.lambda$triggerSavepoint$3(SchedulerBase.java:756) at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:822) at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:797) at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:402) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:195) at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152) at akka.japi.pf.UnitCaseState*来自志愿者整理的flink邮件归档