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https://issues.apache.org/jira/browse/HADOOP-8649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthik Kambatla updated HADOOP-8649:
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Description:
Currently, ChecksumFileSystem implements only listStatus(Path).
The other form of listStatus(Path, customFilter) results in parsing the list
twice to apply each of the filters - custom and checksum filter.
By using a composite filter instead, we limit the parsing to once.
was:
Currently, ChecksumFileSystem implements only listStatus(Path). The other form
of listStatus(Path, PathFilter) is implemented by parent class FileSystem, and
hence doesn't filter out check-sum files.
The implementation should use a composite filter of passed Filter and the
Checksum filter.
Issue Type: Improvement (was: Bug)
Summary: ChecksumFileSystem should have an overriding implementation of
listStatus(Path, PathFilter) for improved performance (was: ChecksumFileSystem
should have an overriding implementation of listStatus(Path, PathFilter))
> ChecksumFileSystem should have an overriding implementation of
> listStatus(Path, PathFilter) for improved performance
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8649
> URL: https://issues.apache.org/jira/browse/HADOOP-8649
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Attachments: HADOOP-8649_branch1.patch, HADOOP-8649_branch1.patch_v2,
> HADOOP-8649_branch1.patch_v3, TestChecksumFileSystemOnDFS.java
>
>
> Currently, ChecksumFileSystem implements only listStatus(Path).
> The other form of listStatus(Path, customFilter) results in parsing the list
> twice to apply each of the filters - custom and checksum filter.
> By using a composite filter instead, we limit the parsing to once.
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