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From "Subbu M Iyer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-451) Remove HTableDescriptor from HRegionInfo
Date Wed, 15 Jun 2011 19:08:47 GMT

    [ https://issues.apache.org/jira/browse/HBASE-451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13049965#comment-13049965

Subbu M Iyer commented on HBASE-451:

Stack: can you please confirm that all tests are now passing?

Also regarding my build, this is what I get when I compile goal from Idea.

I simply rolled back my pom to a previous version (Revision 1099198) to make things work.
Any ideas how I can fix this?


/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Dclassworlds.conf=/work/maven/apache-maven-3.0.2/bin/m2.conf
-Dmaven.home=/work/maven/apache-maven-3.0.2 -Dfile.encoding=MacRoman -classpath /work/maven/apache-maven-3.0.2/boot/plexus-classworlds-2.4.jar
org.codehaus.classworlds.Launcher --no-plugin-registry --fail-fast --no-plugin-updates --strict-checksums
--update-snapshots -f /work/HBaseTrunk0615/hbase/pom.xml compile
[WARNING] Command line option -npu is deprecated and will be removed in future Maven versions.
[WARNING] Command line option -npr is deprecated and will be removed in future Maven versions.
[INFO] Scanning for projects...
[WARNING] Some problems were encountered while building the effective model for org.apache.hbase:hbase:jar:0.91.0-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-eclipse-plugin
is missing. @ line 574, column 15
[WARNING] It is highly recommended to fix these problems because they threaten the stability
of your build.
[WARNING] For this reason, future Maven versions might no longer support building such malformed
[INFO] ------------------------------------------------------------------------
[INFO] Building HBase 0.91.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-eclipse-plugin/maven-metadata.xml

[WARNING] Could not transfer metadata org.apache.maven.plugins:maven-eclipse-plugin/maven-metadata.xml
from/to central (http://repo1.maven.org/maven2): Error transferring file: repo1.maven.org
[INFO] --- maven-antrun-plugin:1.6:run (generate) @ hbase ---
Downloading: http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-api/2.0.11/maven-plugin-api-2.0.11.pom

Downloading: http://repo1.maven.org/maven2/org/apache/maven/maven-project/2.0.11/maven-project-2.0.11.pom

Downloading: http://repo1.maven.org/maven2/org/apache/maven/maven-artifact/2.0.11/maven-artifact-2.0.11.pom

Downloading: http://repo1.maven.org/maven2/org/codehaus/plexus/plexus-utils/2.0.5/plexus-utils-2.0.5.pom

Downloading: http://repo1.maven.org/maven2/org/apache/ant/ant-nodeps/1.8.1/ant-nodeps-1.8.1.pom

[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.576s
[INFO] Finished at: Wed Jun 15 12:03:30 PDT 2011
[INFO] Final Memory: 5M/81M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (generate)
on project hbase: Execution generate of goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run
failed: Plugin org.apache.maven.plugins:maven-antrun-plugin:1.6 or one of its dependencies
could not be resolved: Failed to collect dependencies for org.apache.maven.plugins:maven-antrun-plugin:jar:1.6
(): Failed to read artifact descriptor for org.apache.maven:maven-plugin-api:jar:2.0.11: Could
not transfer artifact org.apache.maven:maven-plugin-api:pom:2.0.11 from/to central (http://repo1.maven.org/maven2):
Error transferring file: repo1.maven.org: Unknown host repo1.maven.org -> [Help 1]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] For more information about the errors and possible solutions, please read the following
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException

Process finished with exit code 1

> Remove HTableDescriptor from HRegionInfo
> ----------------------------------------
>                 Key: HBASE-451
>                 URL: https://issues.apache.org/jira/browse/HBASE-451
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, regionserver
>    Affects Versions: 0.2.0
>            Reporter: Jim Kellerman
>            Assignee: Subbu M Iyer
>            Priority: Critical
>             Fix For: 0.92.0
>         Attachments: 451_support_for_removing_HTD_from_HRI_trunk.txt, HBASE-451-Fixed_broken_TestAdmin.patch,
HBASE-451-Fixed_broken_TestAdmin1.patch, HBASE-451_-_First_draft_support_for_removing_HTD_from_HRI1.patch,
HBASE-451_-_Fourth_draft_support_for_removing_HTD_from_HRI.patch, HBASE-451_-_Second_draft_-_Remove_HTD_from_HRI.patch,
> There is an HRegionInfo for every region in HBase. Currently HRegionInfo also contains
the HTableDescriptor (the schema). That means we store the schema n times where n is the number
of regions in the table.
> Additionally, for every region of the same table that the region server has open, there
is a copy of the schema. Thus it is stored in memory once for each open region.
> If HRegionInfo merely contained the table name the HTableDescriptor could be stored in
a separate file and easily found.

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