[
https://issues.apache.org/jira/browse/HADOOP-6639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tsz Wo (Nicholas), SZE resolved HADOOP-6639.
--------------------------------------------
Resolution: Duplicate
> FileSystem.get(..) may be blocked for a long time
> -------------------------------------------------
>
> Key: HADOOP-6639
> URL: https://issues.apache.org/jira/browse/HADOOP-6639
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Reporter: Tsz Wo (Nicholas), SZE
>
> When FileSystem cache is enabled, FileSystem.get(..) will call
> FileSystem.Cache.get(..), which is a synchronized method. If the lookup
> fails, a new instance will be initialized. Depends on the FileSystem
> subclass implementation, the initialization may take a long time. In such
> case, the FileSystem.Cache lock will be hold and all calls to
> FileSystem.get(..) by other threads will be blocked for a long time.
> In particular, the DistributedFileSystem initialization may take a long time
> since there are retries. It is even worst if the socket timeout is set to a
> large value.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
