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https://issues.apache.org/jira/browse/HDFS-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18022376#comment-18022376
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sundy_baba_zhouzy commented on HDFS-17757:
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How long was the interval between when you uploaded the file and when you
appended?
> An error is reported when append to file
> ----------------------------------------
>
> Key: HDFS-17757
> URL: https://issues.apache.org/jira/browse/HDFS-17757
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: dfs
> Affects Versions: 3.3.1, 3.4.1
> Reporter: yang yang
> Priority: Blocker
>
> we set the following dfs parameters to improve performance:
> dfs.namenode.file.close.num-committed-allowed=1
> dfs.blockreport.incremental.intervalMsec=1000
>
> We upload a dfs file /tmp/a.txt, and then immediately call the append method
> to append the file，we found following error in namenode:
> 2025-03-04 13:15:29,974 | WARN | IPC Server handler 59 on default port xxx |
> DIR* NameSystem.append:
> org.apache.hadoop.hdfs.server.namenode.NotReplicatedYetException: append:
> lastBlock=blk_108xxxx240_100xxx04 of src=/tmp/a.txt is COMMITTED but not yet
> COMPLETE. | FSDirAppendOp.java:149
> Our hadoop replicated number is set 2, we suspect that only one block is
> reported successfully when appending. Is this a bug? Do we have any good ways
> to solve this problem?
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