In HBase, data is stored in tables, which have rows and columns. The below figure show completed Data Model Terminology:view more »
This article first will talk some basic concepts in Java Util Logging, then give 2 examples:view more »
This article contains how to quick start with Standalone HBase.view more »
This article depicts how use
POI-XSSF To Access Microsoft Excel Format Files. HSSF is for legacy xls version(Excel ‘97(-2007) file formt), XSSF is for the Excel 2007 OOXML (.xlsx) file format..
Teiid Embedded is a light-weight version of Teiid, it contain an easy-to-use JDBC Driver that can embed the Query Engine in any Java application. The Embedded mode supply almost all Teiid features without JEE Container involved, it supply a convenient way for Users who want integrate Teiid with their Application.view more »
Teiid Translator API under package
org.teiid.translator, it can be quick viewed from https://github.com/teiid/teiid/tree/master/api/src/main/java/org/teiid/translator, the purpose of this article is for giving a high level overview of Teiid Translator API.
This article give a example for counting how many rows and total data size in mysql table.view more »
本文演示如何基于 JBoss EAP 6/WildFly 配置 Mysql 数据源，本文演示通过如下两种方式配置 Mysql 数据源：view more »
Today I debug the teiid code(teiid use netty 3.6.2) hit the Netty High CPU issue, The issue can be reproduced via the following code snippets:view more »
Mysql JDBC driver throw
java.lang.OutOfMemoryError: GC overhead limit exceeded while querying databases, the stacktrace likes:
Usually, the total hardware threads represents a server’s compute capability, the following formula can count out a total hardware threads:view more »
This Blog article contains some JavaEE profiling/performance concepts.view more »