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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14302) TableSnapshotInputFormat should not create back references when restoring snapshot
Date Tue, 25 Aug 2015 01:49:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14710435#comment-14710435

Hadoop QA commented on HBASE-14302:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against master branch at commit d0873f5a8cc060adbc5a1ae0ed52b84a8942a868.
  ATTACHMENT ID: 12752094

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 9 new or modified

    {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions
(2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0)

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 protoc{color}.  The applied patch does not increase the total number of
protoc compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 checkstyle{color}.  The applied patch does not increase the total number
of checkstyle errors

    {color:green}+1 findbugs{color}.  The patch does not introduce any  new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

    {color:red}-1 site{color}.  The patch appears to cause mvn post-site goal to fail.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:

     {color:red}-1 core zombie tests{color}.  There are 1 zombie test(s): 	at org.apache.giraph.rexster.io.formats.TestRexsterLongDoubleFloatIOFormat.testDbOutput(TestRexsterLongDoubleFloatIOFormat.java:226)
	at org.apache.giraph.rexster.io.formats.TestRexsterLongDoubleFloatIOFormat.testOrientDbOutput(TestRexsterLongDoubleFloatIOFormat.java:154)

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/15230//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/15230//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/15230//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/15230//console

This message is automatically generated.

> TableSnapshotInputFormat should not create back references when restoring snapshot
> ----------------------------------------------------------------------------------
>                 Key: HBASE-14302
>                 URL: https://issues.apache.org/jira/browse/HBASE-14302
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 2.0.0, 1.2.0, 1.3.0, 1.0.3, 1.1.3
>         Attachments: hbase-14302_v1.patch
> TableSnapshotInputFormat restores the snapshot to a temporary directory that is outside
the HBase's root directory so that it can read from the restored snapshot and also refer to
hfiles in the actual root directory. 
> In restoring the snapshot, we create new hfilelinks in the ephemeral location. Creating
new hfile links also creates "back references" for GC. These back references are dangling
since the restore location is outside the root dir, and requires a WRITE permission to the
root dir (as opposed to just READ permission) to be able to run the MR-over-snapshot job.

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