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https://issues.apache.org/jira/browse/TAJO-704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14103102#comment-14103102
]
Hudson commented on TAJO-704:
-----------------------------
SUCCESS: Integrated in Tajo-master-build #341 (See
[https://builds.apache.org/job/Tajo-master-build/341/])
TAJO-704: TajoMaster HA (jaehwa) (blrunner: rev
b16d13addacc8c03f7b46b912a02231cea4c0861)
* tajo-client/src/main/java/org/apache/tajo/client/TajoHAClientUtil.java
* tajo-docs/src/main/sphinx/configuration/ha_configuration.rst
* tajo-core/src/main/java/org/apache/tajo/worker/TajoWorker.java
* tajo-core/src/main/resources/webapps/admin/index.jsp
* tajo-client/src/main/java/org/apache/tajo/cli/TajoHAAdminCommand.java
* tajo-client/src/main/java/org/apache/tajo/client/TajoGetConf.java
* tajo-core/src/main/java/org/apache/tajo/master/TajoContainerProxy.java
* tajo-common/src/main/java/org/apache/tajo/util/HAServiceUtil.java
* tajo-client/src/main/java/org/apache/tajo/client/TajoHAAdmin.java
* tajo-core/src/test/java/org/apache/tajo/TajoTestingCluster.java
* tajo-core/src/main/resources/webapps/admin/query.jsp
* tajo-core/src/main/java/org/apache/tajo/worker/TajoResourceAllocator.java
* tajo-core/src/test/java/org/apache/tajo/master/ha/TestHAServiceHDFSImpl.java
* tajo-core/src/main/java/org/apache/tajo/webapp/QueryExecutorServlet.java
* tajo-core/src/main/java/org/apache/tajo/master/ha/HAService.java
* tajo-dist/src/main/bin/stop-tajo.sh
* tajo-core/src/main/resources/webapps/admin/query_executor.jsp
* tajo-core/src/main/java/org/apache/tajo/master/querymaster/QueryMaster.java
* tajo-docs/src/main/sphinx/configuration.rst
* tajo-core/src/main/java/org/apache/tajo/master/ha/TajoMasterInfo.java
* CHANGES
* tajo-core/src/main/java/org/apache/tajo/master/ha/HAServiceHDFSImpl.java
* tajo-core/src/main/resources/webapps/admin/cluster.jsp
*
tajo-catalog/tajo-catalog-client/src/main/java/org/apache/tajo/catalog/AbstractCatalogClient.java
* tajo-client/src/main/java/org/apache/tajo/client/TajoAdmin.java
* tajo-client/src/main/java/org/apache/tajo/client/TajoClient.java
* tajo-common/src/main/java/org/apache/tajo/TajoConstants.java
* tajo-dist/src/main/bin/start-tajo.sh
* tajo-core/src/main/java/org/apache/tajo/worker/WorkerHeartbeatService.java
*
tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/CatalogServer.java
* tajo-dist/src/main/bin/tajo
* tajo-dist/src/main/bin/tajo-daemons.sh
* tajo-core/src/main/resources/webapps/admin/catalogview.jsp
* tajo-common/src/main/java/org/apache/tajo/conf/TajoConf.java
* tajo-core/src/main/java/org/apache/tajo/master/TajoMaster.java
* tajo-client/src/main/java/org/apache/tajo/cli/TajoCli.java
*
tajo-core/src/main/java/org/apache/tajo/master/querymaster/QueryMasterTask.java
> TajoMaster HA
> -------------
>
> Key: TAJO-704
> URL: https://issues.apache.org/jira/browse/TAJO-704
> Project: Tajo
> Issue Type: New Feature
> Components: tajo master
> Affects Versions: 0.9.0
> Reporter: Jaehwa Jung
> Assignee: Jaehwa Jung
> Fix For: 0.9.0
>
> Attachments: TAJO-704.Henrick.01.patch.txt, TajoMasterHAdraft.pdf
>
>
> TajoMaster is a Single Point of Failure in a Tajo Cluster because TajoMaster
> is the central controlling entity for all components of the Tajo system.
> TajoMaster failure prevents clients from submitting new queries to the
> cluster, and results in the disruption of the ability to run insert overwrite
> queries because the TajoWorker can’t apply its statistical information to
> CatalogStore. Therefore, the high-availability (HA) of TajoMaster is
> essential for the high-availability of Tajo generally.
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