Release Notes for MariaDB Enterprise Server 10.3.17-2

This second release of MariaDB Enterprise Server 10.3 is a maintenance release, addressing security vulnerabilities and including a variety of fixes.

MariaDB Enterprise Server 10.3.17-2 was released on 2019-08-19.

Fixed Security Vulnerabilities

CVE (with cve.org link)	CVSS base score
CVE-2019-2805	6.5
CVE-2019-2740	6.5
CVE-2019-2758	5.5
CVE-2019-2739	5.1
CVE-2019-2737	4.9
CVE-2021-2007	3.7
CVE-2020-2922	3.7

Notable Changes

• Merge relevant InnoDB changes from MySQL 5.7.27

• Compatibility change: Change innodb_log_optimize_ddl to OFF by default

• Compatibility change: Change innodb_adaptive_hash_index to OFF by default

• Adjust spin loops to the x86 PAUSE instruction latency

• 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)

Issues Fixed

• SERVER_AUDIT does not work with PS protocol

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

• Changes to mysql_install_db script text

• 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)

• 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)

• 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 mariadb-backup 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)

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

• 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)

Interface Changes

• mariadb-backup --rsync option removed

• mysqld --innodb-encrypt-temporary-tables option added

• mysqld --rocksdb-cache-dump option added

• mysqld --rocksdb-cache-high-pri-pool-ratio option added

• mysqld --rocksdb-cache-index-and-filter-with-high-priority option added

• mysqld --rocksdb-delete-cf option added

• mysqld --rocksdb-enable-insert-with-update-caching option added

• mysqld --rocksdb-read-free-rpl-tables option removed

• mysqld --rocksdb-rollback-on-timeout option added

• mysqld --rocksdb-stats-level option added

• Innodb_encryption_n_temp_blocks_decrypted status variable added

• Innodb_encryption_n_temp_blocks_encrypted status variable added

• wsrep_applier_thread_count status variable added

• wsrep_rollbacker_thread_count status variable added

• innodb_encrypt_temporary_tables system variable added

• rocksdb_cache_dump system variable added

• rocksdb_cache_high_pri_pool_ratio system variable added

• rocksdb_cache_index_and_filter_with_high_priority system variable added

• rocksdb_delete_cf system variable added

• rocksdb_enable_insert_with_update_caching system variable added

• rocksdb_read_free_rpl_tables system variable removed

• rocksdb_rollback_on_timeout system variable added

• rocksdb_stats_level system variable added

Platforms

In alignment with the enterprise lifecycle, MariaDB Enterprise Server 10.3.17-2 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".

Note

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.

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