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https://issues.apache.org/jira/browse/FLINK-14619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Yao updated FLINK-14619:
-----------------------------
Priority: Major (was: Blocker)
> Failed to fetch BLOB
> --------------------
>
> Key: FLINK-14619
> URL: https://issues.apache.org/jira/browse/FLINK-14619
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.9.1
> Reporter: liang yu
> Priority: Major
>
> 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
> xxxx/xxxx:xxxx
> 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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