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https://issues.apache.org/jira/browse/HDFS-13645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16496222#comment-16496222
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Karthik Palanisamy commented on HDFS-13645:
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Cc: [~wheat9]
> Allow user to configure/disable InputStream TTL in NFS Cache
> ------------------------------------------------------------
>
> Key: HDFS-13645
> URL: https://issues.apache.org/jira/browse/HDFS-13645
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: nfs
> Affects Versions: 2.7.3
> Reporter: Karthik Palanisamy
> Assignee: Mukul Kumar Singh
> Priority: Major
>
> The user may not be able to read latest data until DFSInputStreamCacheKey
> invalidates/expire from NFS cache, default ttl is 10 minutes (
> DEFAULT_DFS_INPUTSTREAM_CACHE_TTL). This scenario when we send continues
> stream into file and read the same file during write.
> Repro -
> # nfs mount
> # continuous file append.
> # read the file
> # close append
> # again, read the file
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