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I found some concurrency problems in the changes of catalog module.


tajo-catalog/tajo-catalog-drivers/tajo-hcatalog/src/main/java/org/apache/tajo/catalog/store/HCatalogStoreClientPool.java
<https://reviews.apache.org/r/18112/#comment64699>

    AtomicBoolean looks enough for this purpose. You don't need to implement 
this kind of class.



tajo-catalog/tajo-catalog-drivers/tajo-hcatalog/src/main/java/org/apache/tajo/catalog/store/MutableBoolean.java
<https://reviews.apache.org/r/18112/#comment64700>

    AtomicBoolean looks enough for this purpose. You don't need to implement 
this kind of class.



tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/CatalogServer.java
<https://reviews.apache.org/r/18112/#comment64701>

    What was the reasoning behind the removal of compareTo function?



tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/store/AbstractDBStore.java
<https://reviews.apache.org/r/18112/#comment64702>

    Statement, PreparedStatement, and ResultSet  should not be used as member 
variables. Many methods share them, so this kind of usages definitely causes 
concurrency problems.


- Hyunsik Choi


On Feb. 14, 2014, 6:43 p.m., Jung JaeHwa wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/18112/
> -----------------------------------------------------------
> 
> (Updated Feb. 14, 2014, 6:43 p.m.)
> 
> 
> Review request for Tajo.
> 
> 
> Bugs: TAJO-530
>     https://issues.apache.org/jira/browse/TAJO-530
> 
> 
> Repository: tajo
> 
> 
> Description
> -------
> 
> Fix warnings in tajo-catalog.
> 
> 
> Diffs
> -----
> 
>   dev-support/findbugs-exclude.xml 0f967de 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/FunctionDesc.java
>  084d97c 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/Options.java
>  e770b11 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/Schema.java
>  2f57ff2 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/SortSpec.java
>  5cc0de1 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/TableDesc.java
>  1b0a9fe 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/json/TableMetaAdapter.java
>  ce42bea 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/partition/PartitionDesc.java
>  f7c1342 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/partition/PartitionMethodDesc.java
>  d4a2c3e 
>   
> tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/statistics/StatSet.java
>  f8d24b0 
>   
> tajo-catalog/tajo-catalog-drivers/tajo-hcatalog/src/main/java/org/apache/tajo/catalog/store/HCatalogStore.java
>  f796fff 
>   
> tajo-catalog/tajo-catalog-drivers/tajo-hcatalog/src/main/java/org/apache/tajo/catalog/store/HCatalogStoreClientPool.java
>  263e1dd 
>   
> tajo-catalog/tajo-catalog-drivers/tajo-hcatalog/src/main/java/org/apache/tajo/catalog/store/MutableBoolean.java
>  PRE-CREATION 
>   
> tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/CatalogServer.java
>  62d6e27 
>   
> tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/store/AbstractDBStore.java
>  1ac9d80 
>   
> tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/store/DerbyStore.java
>  6f1b612 
>   
> tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/store/MySQLStore.java
>  e9c5a03 
> 
> Diff: https://reviews.apache.org/r/18112/diff/
> 
> 
> Testing
> -------
> 
> mvn clean test findbugs:findbugs -Phcatalog-0.12.0
> mvn clean test findbugs:findbugs -Phcatalog-0.11.0
> 
> 
> Thanks,
> 
> Jung JaeHwa
> 
>

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