Information Schema XTRADB_RSEG Table

MariaDB starting with 10.0.9

The XTRADB_RSEG table was added in MariaDB 10.0.9.

The Information Schema XTRADB_RSEG table contains information about the XtraDB rollback segments.

The PROCESS privilege is required to view the table.

It has the following columns:

Column Description
rseg_id Rollback segment id.
space_id Space where the segment is placed.
zip_size Size in bytes of the compressed page size, or zero if uncompressed.
page_no Page number of the segment header.
max_size Maximum size in pages.
curr_size Current size in pages.

The number of records will match the value set in the innodb_undo_logs variable (by default 128).

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