Troubleshooting HBase Snapshot Reads with LZO Compression
Issue 1: UnsatisfiedLinkError to gplcompression
When attempting to read HBase snapshot data, the following error occurs:
java.lang.UnsatisfiedLinkError: no gplcompression in java.library.path
at com.hadoop.compression.lzo.GPLNativeCodeLoader.<clinit>(GPLNativeCodeLoader.java:31)
at com.hadoop.compression.lzo.LzoCodec.<clinit> ...
Posted on Sun, 14 Jun 2026 16:47:10 +0000 by zMastaa
Configuring LZO Compression for Hadoop 3.1.2 and HBase 2.2.0
To implement LZO compression within a HBase environment running on Hadoop, it is necessary to compile the native LZO libraries and the corresponding Hadoop-LZO Java bridge from source. Older guides often reference the deprecated hadoop-gpl-compression library, which is incompatible with modern Hadoop versions. The following procedure outlines t ...
Posted on Mon, 18 May 2026 18:24:19 +0000 by neron-fx
Essential Linux Command Line Operations and System Management
File Operations: Copy, Move, and Delete
In Linux systems, the fundamental commands for file manipulation are cp (copy), mv (move), and rm (remove). ### Copy Command (cp)
The cp command follows this syntax: ```
cp [-adfilprsu] source_file destination_file
cp [options] source1 source2 source3 ... directory
Key parameters include: - `-a`: Archive ...
Posted on Fri, 15 May 2026 19:39:06 +0000 by Jem
Compressing Files into ZIP Archives in Java
Overview
Java provides built-in classes in the java.util.zip package for creating ZIP archives. The ZipOutputStream class handles the compression process, while ZipEntry represents individual files within the archive.
Implementation
Creating the ZIP Output Stream
First, establish the output stream for the archive file:
import java.io.FileOutput ...
Posted on Fri, 08 May 2026 14:50:53 +0000 by madkris