Fast Fragment Scanning for Tables in GBase 8a

Disk fragmentation inside a database can silently eat up storage and degrade I/O performance. In GBase 8a, the China-domestically developed MPP cluster database from GBASE, frequent inserts and deletes leave "holes" in table files over time. Spotting these fragmented tables quickly is a common operational challenge—traditional methods that scan metadata tables are slow and don't scale well across large clusters. This article introduces a lightweight, shell-based approach that uses the Linux file