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Posted to common-issues@hadoop.apache.org by "Alejandro Abdelnur (Updated) (JIRA)" <ji...@apache.org> on 2012/02/14 19:12:00 UTC
[jira] [Updated] (HADOOP-7549) Use JDK ServiceLoader mechanism to
find FileSystem implementations
[ https://issues.apache.org/jira/browse/HADOOP-7549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alejandro Abdelnur updated HADOOP-7549:
---------------------------------------
Attachment: HADOOP-7549v2.patch
Patch rebased to trunk.
It keeps current mappings in the services definition (it was been done already).
Definition in configuration overrides a service definition (it was been done already).
It removes the deprecated warning log when resolving a FS implementation from configuration as this is the way of overriding an implementation, thus it is not deprecated.
It adds HAR and WebHdfs filesystems to the service loading mechanism/definitions.
> Use JDK ServiceLoader mechanism to find FileSystem implementations
> ------------------------------------------------------------------
>
> Key: HADOOP-7549
> URL: https://issues.apache.org/jira/browse/HADOOP-7549
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.23.0
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
> Fix For: 0.24.0
>
> Attachments: HADOOP-7549v1.patch, HADOOP-7549v2.patch
>
>
> Currently configuring FileSystem implementations must be done by declaring the FileSystem class in the Hadoop configuration files (core-default.xml, ...).
> Using JDK ServiceLoader mechanism this configuration step can be avoided. Adding the JAR file with the additional FileSystem implementation would suffice.
> This is similar to what is being proposed for compression codecs (HADOOP-7350).
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