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https://issues.apache.org/jira/browse/TAJO-847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14033525#comment-14033525
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ASF GitHub Bot commented on TAJO-847:
-------------------------------------
Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/39#discussion_r13846303
--- Diff:
tajo-catalog/tajo-catalog-server/src/main/java/org/apache/tajo/catalog/store/AbstractDBStore.java
---
@@ -152,9 +152,20 @@ protected String getCatalogUri() {
return catalogUri;
}
+ protected boolean isConnValid(int timeout) throws CatalogException {
--- End diff --
As I know, this function is a temporal solution to handle the internal NPE
of MariaDB. Would you leave some descriptions of the error and this solution?
> Supporting MariaDB-based Store, which is compatible with MySQL.
> ---------------------------------------------------------------
>
> Key: TAJO-847
> URL: https://issues.apache.org/jira/browse/TAJO-847
> Project: Tajo
> Issue Type: New Feature
> Components: catalog, conf and scripts
> Affects Versions: 0.8.0
> Environment: Tested with Hadoop 2.4.0, Tajo 0.8.0, MariaDB 5.5.37,
> MariaDB-Java-Client (JDBC) 1.1.7 in OpenJDK 1.7.0_55 + Ubuntu 14.04 LTS x86_64
> Reporter: Jinhang Choi
> Assignee: Jinhang Choi
> Priority: Minor
> Fix For: 0.8.0
>
> Attachments: TAJO-847.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> There exists an open-source database MariaDB (http://mariadb.org) which can
> be replacement for MySQL; Since the interface of MariaDB is perfectly
> compatible to that of MySQL, it is easy to construct CatalogStore to use
> MariaDB in Tajo.
> Therefore, I hereby suggest MariaDBStore by duplicating MySQLStore.
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