Release Notes for MariaDB Enterprise Server 10.4.7-2


This second release of MariaDB Enterprise Server 10.4 is a maintenance release, addressing security vulnerabilities and including a variety of fixes.

MariaDB Enterprise Server 10.4.7-2 was released on 2019-08-19.

Fixed Security Vulnerabilities

CVE (with link)

CVSS base score















Notable Changes

  • Merge upstream changes from MyRocks (MDEV-19795)

  • DISKS plugin now requires the FILE privilege to display information in the disks table in the information schema, the table will otherwise be empty (MDEV-18328)

  • Merge relevant InnoDB changes from MySQL 5.7.27

  • Spider now maintains sql_mode between Spider Node and Data Nodes

  • Adjust spin loops to the x86 PAUSE instruction latency

  • Compatibility change: Change innodb_log_optimize_ddl to OFF by default

  • Compatibility change: Change innodb_adaptive_hash_index to OFF by default

Issues Fixed

  • SERVER_AUDIT v2 does not work with PS protocol

  • DROP TABLE IF EXISTS killed on master but was replicated (MDEV-20348)

  • Post-merge fixes for rocksdb.group_min_max test (MDEV-20113)

  • Replication hangs with "preparing" and never starts (MDEV-20247)

  • Failing assertion when REDO log files reach 512Gb while preparing backup (MDEV-20060)

  • Removed --rsync legacy option from enterprise build of MariaDB Backup

  • Changes to mysql_install_db script text

  • Test change: innodb.trx_id_future fails on 10.3+ (MDEV-20138)

  • Encrypted temporary tables cannot be read with full_crc32 (MDEV-20340)

  • Temporary tables created with data-at-rest encryption are not fully encrypted (MDEV-17228)

  • InnoDB bugs related to creating tables (MDEV-19292, MDEV-20102)

  • ALTER TABLE for InnoDB can result in a crash in some cases (MDEV-15641)

  • Change of COLLATE with InnoDB unnecessarily requires ALGORITHM=COPY (MDEV-17301)

  • Changing an index comment unnecessarily rebuilds index (MDEV-18266)

  • Possible foreign key corruption for ALTER TABLE ADD COLUMN with InnoDB (MDEV-19630)

  • Corruption after instant ADD or DROP when the index tree shrinks (MDEV-19916)

  • Cannot load compressed BLOB with InnoDB (MDEV-19974)

  • Bug in versioned tables when deleting history (MDEV-19814)

  • Compressed columns cannot be restored from dump (MDEV-17363)

  • Bugs in InnoDB related to indexed virtual columns (MDEV-16222, MDEV-17005, MDEV-19870)

  • Failing tests in buildbot related to FULLTEXT INDEX (MDEV-14154)

  • Server startup bug with encrypted InnoDB table (MDEV-19914)

  • Possible crash when Galera and foreign key is used, if the referenced record is deleted at the same time (MDEV-19660)

  • Recovery with mariabackup crash related to InnoDB with custom innodb_data_file_path (MDEV-19978)

  • Add page-id matching check in innochecksum tool (MDEV-19871)

  • DROP TEMPORARY table is logged despite no CREATE was logged in binary log (MDEV-20091)

  • mysql_upgrade_service throws exception upgrading from 10.0 to 10.3 (MDEV-19427)

  • Loading the Audit plugin causes performance regression (MDEV-18661)

  • REPLACE on table with virtual_field can cause crash (MDEV-19771)

  • Fix Aria ER_CRASHED_ON_USAGE and Assertion (MDEV-19595)

  • Server hangs on shutdown during installation of Spider (MDEV-20179)


In alignment to the enterprise lifecycle, MariaDB Enterprise Server 10.4.7-2 is provided for:

  • CentOS 7

  • CentOS 6

  • Debian 9

  • Debian 8

  • Red Hat Enterprise Linux 7

  • Red Hat Enterprise Linux 6

  • Ubuntu 18.04

  • Ubuntu 16.04

  • Microsoft Windows

Some components of MariaDB Enterprise Server might not support all platforms. For additional information, see "MariaDB Corporation Engineering Policies".


CentOS 6, Debian 8, and Red Hat Enterprise Linux 6 are no longer supported as per the MariaDB Engineering Policy. Older releases are available from the MariaDB Downloads page. Instructions for installation are included as a README file within the download.