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https://issues.apache.org/jira/browse/TAJO-1143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241657#comment-14241657
]
Hudson commented on TAJO-1143:
------------------------------
FAILURE: Integrated in Tajo-master-CODEGEN-build #135 (See
[https://builds.apache.org/job/Tajo-master-CODEGEN-build/135/])
TAJO-1143: TajoMaster, TajoWorker, and TajoClient should have diagnosis phase
at startup (hyunsik: rev a0d67bb60ea995dc2c0ad014a8b71852e936cd56)
* tajo-common/src/main/java/org/apache/tajo/rule/base/BaseRuleProvider.java
* tajo-core/src/main/java/org/apache/tajo/master/TajoMaster.java
* tajo-common/src/main/java/org/apache/tajo/rule/SelfDiagnosisRule.java
*
tajo-common/src/main/resources/META-INF/services/org.apache.tajo.rule.SelfDiagnosisRuleProvider
*
tajo-common/src/main/java/org/apache/tajo/rule/SelfDiagnosisRuleVisibility.java
* tajo-common/src/main/java/org/apache/tajo/rule/SelfDiagnosisRuleSession.java
* tajo-common/src/main/java/org/apache/tajo/rule/EvaluationFailedException.java
* tajo-common/src/test/java/org/apache/tajo/rule/TestRuleSession.java
* tajo-core/src/test/java/org/apache/tajo/master/rule/TestMasterRules.java
*
tajo-core/src/main/resources/META-INF/services/org.apache.tajo.rule.SelfDiagnosisRuleProvider
* tajo-common/src/test/java/org/apache/tajo/rule/TestRuleEngine.java
* tajo-core/src/main/java/org/apache/tajo/master/rule/FileSystemRule.java
* tajo-common/src/main/java/org/apache/tajo/rule/EvaluationResult.java
* tajo-common/src/main/java/org/apache/tajo/conf/TajoConf.java
* tajo-common/src/main/java/org/apache/tajo/rule/SelfDiagnosisRuleEngine.java
*
tajo-common/src/main/java/org/apache/tajo/rule/base/CheckHadoopRuntimeVersionRule.java
* tajo-core/src/main/java/org/apache/tajo/worker/TajoWorker.java
* tajo-core/src/main/java/org/apache/tajo/master/rule/MasterRuleProvider.java
* tajo-core/src/main/java/org/apache/tajo/worker/rule/WorkerRuleProvider.java
* tajo-core/pom.xml
*
tajo-common/src/main/java/org/apache/tajo/rule/base/TajoConfValidationRule.java
* CHANGES
* tajo-common/src/main/java/org/apache/tajo/rule/SelfDiagnosisRuleProvider.java
*
tajo-common/src/main/java/org/apache/tajo/rule/SelfDiagnosisRuleDefinition.java
*
tajo-core/src/main/java/org/apache/tajo/worker/rule/ConnectivityCheckerRuleForTajoWorker.java
* tajo-common/pom.xml
* tajo-client/src/main/java/org/apache/tajo/client/TajoClientImpl.java
* tajo-common/src/main/java/org/apache/tajo/rule/EvaluationContext.java
> TajoMaster, TajoWorker, and TajoClient should have diagnosis phase at startup
> -----------------------------------------------------------------------------
>
> Key: TAJO-1143
> URL: https://issues.apache.org/jira/browse/TAJO-1143
> Project: Tajo
> Issue Type: Improvement
> Components: client, query master, tajo master
> Reporter: Hyunsik Choi
> Assignee: Jihun Kang
> Fix For: 0.9.1
>
>
> I propose that all cluster components (TajoMaster, TajoWorker, and
> TajoClient) in a Tajo cluster should have a diagnosis phase to eliminate or
> detect invalid situations prior to runtime query errors.
> For example, your query can cause some runtime exception due to wrong config
> after a query takes 2 hours. This situation is definitely not acceptable in
> production.
> I think that the diagnosis phase should check all configs, connectivities
> among cluster components, and status of workers.
> In detail, we need a diagnosis executor, extensible diagnosis rule interface,
> and its rules. Also, one of diagnosis rules would be TAJO-1114.
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