deprecate InMemoryFileSystem

• Key: HADOOP-3501
• Type: Improvement
• Status: Closed
• Resolution: Fixed
• Priority: Major
• Assignee: Doug Cutting
• Reporter: Doug Cutting
• Component/s: fs
• Affects Version/s: 0.17.0
• Fix Version/s: 0.18.0

Description

As of HADOOP-2095, InMemoryFileSystem is no longer used. Its design was optimized for a particular application and it is thus not a good general-purpose RAM-based FileSystem implementation, so it ought to be removed.

Comments

[Doug Cutting]

Patch to deprecate InMemoryFileSystem.

[Arun C Murthy]

+1

We can fix the test-case which uses the InMemoryFileSystem at a latter point.

[Hadoop QA]

-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12383471/HADOOP-3051.patch
against trunk revision 663487.

+1 @author. The patch does not contain any @author tags.

-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no tests are needed for this patch.

+1 javadoc. The javadoc tool did not generate any warning messages.

-1 javac. The applied patch generated 455 javac compiler warnings (more than the trunk's current 452 warnings).

+1 findbugs. The patch does not introduce any new Findbugs warnings.

+1 release audit. The applied patch does not increase the total number of release audit warnings.

-1 core tests. The patch failed core unit tests.

-1 contrib tests. The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2593/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2593/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2593/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2593/console

This message is automatically generated.

[Doug Cutting]

> -1 javac. The applied patch generated 455 javac compiler warnings (more than the trunk's current 452 warnings).

This is expected, since this patch adds a deprecation.

> -1 core tests. The patch failed core unit tests.
> -1 contrib tests. The patch failed contrib unit tests.

These same tests are failing for other patches and are unrelated to this patch.

[Devaraj Das]

This patch is w.r.t the trunk.

[Devaraj Das]

Pushing through hudson

[Owen O'Malley]

I just committed this. Thanks, Doug!