大家好，最近有个程序运行一段时间之后报异常，不知道什么原因引起的，异常如下，由于云桌面环境没法拷贝内容，现在在网上找到一个一样的异常，这个是之前有人发到这个邮件列表的，但是没解决
java.util.concurrent.CompletionException:
org.apache.flink.util.FlinkException: Could not retrieve file from
transient
blob store.
at
org.apache.flink.runtime.rest.handler.taskmanager.AbstractTaskManagerFileHandler.lambda$respondToRequest$0(AbstractTaskManagerFileHandler.java:135)
at
java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656)
at
java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632)
at
java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
at
org.apache.flink.shaded.netty4.io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
at
org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404)
at
org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:474)
at
org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:909)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.flink.util.FlinkException: Could not retrieve file
from transient blob store.
... 9 more
Caused by: java.io.FileNotFoundException: Local file
/data/yarn/nm/usercache/nlp_realtime/appcache/application_1571815761034_7982/blobStore-ed462e9a-7468-4d9d-8295-c126c84fb5ef/no_job/blob_t-bd919682fabe41b123dbd280e435de85410e3ad5-bd65dcaa30ecab21dfe21ff3c434d906
does not exist and failed to copy from blob store.
at
org.apache.flink.runtime.blob.BlobServer.getFileInternal(BlobServer.java:516)
at
org.apache.flink.runtime.blob.BlobServer.getFileInternal(BlobServer.java:444)
at
org.apache.flink.runtime.blob.BlobServer.getFile(BlobServer.java:369)
at
org.apache.flink.runtime.rest.handler.taskmanager.AbstractTaskManagerFileHandler.lambda$respondToRequest$0(AbstractTaskManagerFileHandler.java:133)
... 8 more
