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https://issues.apache.org/jira/browse/HDFS-13288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Igloo resolved HDFS-13288.
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Resolution: Invalid
> Why we don't add a harder lease expiration limit.
> -------------------------------------------------
>
> Key: HDFS-13288
> URL: https://issues.apache.org/jira/browse/HDFS-13288
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.6.5
> Reporter: Igloo
> Priority: Minor
>
> Currently there exists a soft expire timeout(1 minutes by default) and hard
> expire timeout(60 minutes by default).
> On our production environment. Some client began writing a file long
> time(more than one year) ago, when writing finished and tried to close the
> output stream, the client failed closing it (for some IOException. etc. ).
> But the client process is a background service, it doesn't exit. So the lease
> doesn't released for more than one year.
> The problem is that, the lease for the file is occupied, we have to call
> recover lease on the file when doing demission or appending operation.
>
> So I am wondering why we don't add a more harder lease expire timeout, when a
> lease lasts too long (maybe one month), revoke it.
>
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