liang yu created FLINK-14619:
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Summary: Failed to fetch BLOB
Key: FLINK-14619
URL:
https://issues.apache.org/jira/browse/FLINK-14619 Project: Flink
Issue Type: Bug
Affects Versions: 1.9.1
Reporter: liang yu
java.io.IOException: Failed to fetch BLOB e78e9574da4f5e4bdbc8de9678ebfb36/p-650534cd619de1069630141f1dcc9876d6ce2ce0-ee11ae52caa20ff81909708a783fd596 from xxxx/xxxx:xxxx and store it under /hadoop/yarn/local/usercache/hdfs/appcache/application_1570784539965_0165/blobStore-79420f3a-6a83-40d4-8058-f01686a1ced8/incoming/temp-00000072
at org.apache.flink.runtime.blob.BlobClient.downloadFromBlobServer(BlobClient.java:169)
at org.apache.flink.runtime.blob.AbstractBlobCache.getFileInternal(AbstractBlobCache.java:181)
at org.apache.flink.runtime.blob.PermanentBlobCache.getFile(PermanentBlobCache.java:202)
at org.apache.flink.runtime.execution.librarycache.BlobLibraryCacheManager.registerTask(BlobLibraryCacheManager.java:120)
at org.apache.flink.runtime.taskmanager.Task.createUserCodeClassloader(Task.java:915)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:595)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Could not connect to BlobServer at address ambari11.fydata/172.16.20.11:10898
at org.apache.flink.runtime.blob.BlobClient.<init>(BlobClient.java:100)
at org.apache.flink.runtime.blob.BlobClient.downloadFromBlobServer(BlobClient.java:143)
... 7 more
Caused by: java.net.SocketException: 打开的文件过多
at java.net.Socket.createImpl(Socket.java:460)
at java.net.Socket.connect(Socket.java:587)
at org.apache.flink.runtime.blob.BlobClient.<init>(BlobClient.java:95)
... 8 more
I set the ulimit-a parameter of the server to 650000, but this error will still occur. The server opening file descriptor with the error in the monitoring display is 50000. Who can tell me why?
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