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Release Notes for MariaDB Enterprise Server 10.5.24-18

MariaDB Enterprise Server 10.5.24-18 is a maintenance release of MariaDB Enterprise Server 10.5. This release includes a variety of fixes.

MariaDB Enterprise Server 10.5.24-18 was released on 2024-03-11.

Changes in Storage Engines

  • This release incorporates MariaDB ColumnStore engine version 5.6.8-2.

Notable Changes

  • Galera has been updated to 26.4.17

  • AlmaLinux 8 and 9 are now officially supported. RHEL 8 and 9 packages are used for AlmaLinux

Issues Fixed

Can result in data loss

  • BLOB corruption on UPDATE of PRIMARY KEY with FOREIGN KEY (MDEV-31441)

  • Corrupted table after instant ADD COLUMN failed due to attempting to exceed the maximum record length (MDEV-18322)

  • ALTER command, before entering TOI, tries to collect foreign keys of a table. For this it opens the main table with SHARED_HIGH_PRIO MDL lock which disregards any waiting queued lock requests. If there is a DML operation running on the same table, and a real TOI operation as well, this TOI operation tries to BF-abort DML operation. At the same time, because ALTER is not yet TOI, and it runs with HIGH_PRIO MDL lock, it disregards waiting TOI operation, and gets the lock and immediately gets BF-aborted either by TOI directly or by aborted DML operation. Since there is no wsrep transaction for ALTER, it gets BF-aborted by setting killed state for the tread. But before entering TOI, ALTER doesn't check killed state, so it replicates, and applies on the other nodes successfully, but then it rolls back on the local node, causing inconsistency (MDEV-32938)

  • If Galera is enabled with binlog emulation, attempting to set a SAVEPOINT when one of the involved storage engines does not support savepoints, can result in cluster wide inconsistency. A part of a transaction could be replicated to other notes, but a local statement rollback could be triggered. (MDEV-32549)

  • InnoDB after issuing ALTER TABLE...IMPORT TABLESPACE may not be crash safe anymore (MDEV-32269)

  • When a table is created with a virtual column while using sql_mode=ORACLE, the server can crash when the table is changed while using a different setting for sql_mode (MDEV-27744)

    • The virtual column must have been created using:

      • DECODE()

      • LTRIM()

      • RTRIM()

      • LPAD()

      • RPAD()

      • REPLACE()

      • SUBSTR()

Can result in hang or crash

  • A shutdown of the server with innodb_fast_shutdown=0 can hang after the server failed to start up (MDEV-32798)

  • Crash while trying to complain "unsupported meta-data version" on ALTER TABLE...IMPORT TABLESPACE with MySQL 8.0 files (MDEV-29972)

  • Wrong table attribute PAGE_COMPRESSED=1 shown for tables in the InnoDB system tablespace (MDEV-31000)

  • MariaDB crashes with foreign_key_checks=0 when changing a column and adding a foreign key at the same time (MDEV-32638)

  • Sometimes node has been dropped from the cluster on startup Shutdown with async replica with diagnostics like: (MDEV-31413)

[ERROR] Slave SQL: Error 'WSREP has not yet prepared node for application use' on query

and

[ERROR] Slave SQL: Node has dropped from cluster, Gtid 1-1-1, Internal MariaDB error code: 1047" in the server log

  • GTIDs may diverge in Galera cluster after CREATE TABLE AS (MDEV-27806) This can subsequently lead to diagnostics like:

[ERROR] mariadbd: Error writing file '/opt/maria10.1/binlog/BINLOG' (errno: 1950 "Unknown error 1950")"

and node crash:

wsrep::transaction::before_rollback(): Assertion state() == s_executing || state() == s_preparing || state() == s_prepared || state() == s_must_abort || state() == s_aborting || state() == s_cert_failed || state() == s_must_replay` failed

  • SHOW SLAVE STATUS can deadlock an errored replica when a parallel replica worker gets killed at about when SHOW is issued (MDEV-10653)

  • When executing SELECT BINLOG_GTID_POS(@binlog_file...) with the user variable being NULL, the server can crash (MDEV-33045)

  • A Query that uses a specific SQL construct can cause a server crash. The construct is an equality comparison of table-less row subquery and a subquery that has a UNION operation at the top level: (SELECT 'foo', 'bar') = (SELECT col1, col2 FROM t1 ... UNION ...) (MDEV-29070)

  • A DELETE with ORDER BY and semijoin optimization can cause a crash (MDEV-32212)

  • Possible crash when lateral derived in a query is guaranteed to return no rows (MDEV-31279)

  • When using EXCHANGE PARTITION to replace a partition with a table, the server can crash if the to be exchanged table is using a virtual column which is not matching the partitioning key (MDEV-28127)

  • When using INSERT DELAYED with a table using virtual columns, the server can crash (MDEV-29932)

  • When using SELECT from a derived table with using AS OF, the server can crash (MDEV-32082)

  • When using JSON_CONTAINS_PATH in a comparison in a prepared statement, the server can crash on execution of the statement (MDEV-32867)

  • Binlog Checksum of replication user variable events is zeroed by Zlib if part of event data is empty. The bug is a regression of other fixes on a server build with the zlib library. It can show up as a checksum verification error of a user variable event at its reading from binlog, (MDEV-33283)

  • Server hangs on DROP DATABASE after a failing LOCK TABLES on Spider table (MDEV-29667)

  • When using two temporary tables in OPTIMIZE TABLE, executed as a prepared statement, the server can crash (MDEV-31523)

  • When calling SP invoking another SP with a parameter requiring a type conversion, the server can crash (MDEV-33270)

  • Possible hang when changing the InnoDB log file size using SET GLOBAL innodb_log_file_size (MENT-1271)

  • If a query's WHERE clause has conditions over more than 128 columns of the same table, optimizer_use_condition_selectivity is 3, or higher, use_stats_tables is not set to NEVER, and statistics for the columns have been collected via ANALYZE TABLE, the server could crash (MENT-2036)

Can result in unexpected behavior

  • SHOW WARNINGS can show wrong foreign key related warnings/errors from an earlier transaction for InnoDB (MDEV-32833)

  • LeakSanitizer errors in mem_heap_create_block_func upon query from I_S.INNODB_SYS_TABLES with LIMIT ROWS EXAMINED (MDEV-32890)

  • Query from I_S.INNODB_SYS_INDEXES exceeding LIMIT ROWS EXAMINED causes ER_UNKNOWN_ERROR and LeakSanitizer errors in rec_copy_prefix_to_buf_old (MDEV-28613)

  • Unexpected ER_ERROR_ON_RENAME upon DROP non-existing FOREIGN KEY with ALGORITHM=COPY (MDEV-22230)

  • FOREIGN_KEY_CHECKS does not prevent non-copy alter from creating invalid FK structure (MDEV-29092)

  • Secondary indexes on VARCHAR columns may be corrupted when the VARCHAR is extended so much that a column prefix index must be used (MDEV-21245)

  • Spider: Valid LEFT JOIN results in ERROR 1064 (MDEV-26247)

  • Syntax error upon query with subquery from Spider table (MDEV-30392)

  • Spider doesn't recognize SEMI-JOIN (MDEV-31645)

  • wsrep_provider_options can be truncated on deep and long directory paths with diagnostics like: "Warning 1265 Data truncated for column 'VARIABLE_VALUE' at row 1" in the server log (MDEV-32634)

  • Mariadb-dump option --delete-master-logs is ignored (MDEV-32953)

  • multi source replication filters breaking GTID semantic (MDEV-26632)

  • If wsrep_gtid_mode=ON is used and wsrep_gtid_domain_id is non-zero, after SST using mariadb-backup GTIDs will become inconsistent both at the domain level, and at the seq_no level (MDEV-31905)

  • wsrep_gtid_domain_id is ignored on any node other than bootstrapped node when the wsrep_gtid_mode is set to ON (MDEV-32740)

  • LONG UNIQUE ... USING HASH can result in an error when used with REPLACE (MDEV-32839)

  • JSON_ARRAYAGG() doesn't evaluate correct charset which can lead to an unexpected result (MDEV-24784)

  • A connection can control RAND() in following connection if used in conjunction with set rand_seed1, rand_seed2 (MDEV-33148)

  • An UPDATE of a column of a FEDERATED table fails with "ERROR 1296 (HY000): Got error 10000 'Error on remote system: 1143: UPDATE command denied to user 'xxx'@'x.x.x.x' for column 'id' in table 'x'' from FEDERATED"

if the table includes an AUTO_INCREMENT column (MDEV-32984)

  • CHECK TABLE shows a MyISAM/Aria table as corrupted, as a unique hash key on column prefix is computed incorrectly (MDEV-29954)

  • mysql.slow_log reports time when the query finished, not the start time (MDEV-11628)

  • mariadb-upgrade does not remove mysql.plugin entries for plugins that became bundled. Error message "[ERROR] mariadbd: Plugin 'unix_socket' is already installed." is shown when upgrading (MDEV-32043)

  • If storage engine Spider is loaded upon server startup, Spider related system, and status variables are not available (MENT-2043)

  • Regular expressions cannot be used in queries on tables of type SPIDER (MDEV-32986)

  • Memory leak when purging history of indexed virtual columns (MDEV-28682)

  • MariaDB Enterprise Backup sometimes shows the error Can't open shared library '/file_key_management.so' (errno: 2, cannot open shared object file: No such file, or directory) when the option --target-dir is not used with --prepare (MDEV-29110)

  • The database part is not case sensitive in Stored Procedure names. This can lead to using the wrong stored procedure, if the same database name is used as lower, and uppercase (MDEV-33019)

  • CREATE UNIQUE INDEX can fail with an incorrect "ERROR 1286 (42000): Unknown storage engine 'partition'" (MDEV-21618)

  • After successful connection, server sets SERVER_STATUS_AUTOCOMMIT in server_status in the OK packet although the global variable autocommit=0 is set (MDEV-32875)

  • In some cases it is possible to create a Spider table which is referencing to a table on the same instance although spider_same_server_link=0 is set (MDEV-29718)

  • Spider fails to auto-discover a table structure with ERROR 12500 (HY000): unknown (MDEV-33008)

  • REGEXP_REPLACE treats empty strings different than REPLACE in ORACLE mode (MDEV-29095)

  • REPLACE is supposed to remove all conflicting rows of a table. For UNIQUE HASH, REPLACE only removes the first conflicting row, not all conflicting rows (MDEV-32837)

  • mariadb-upgrade does not remove mysql.plugin entries for plugins that became bundled. Error message "[ERROR] mariadbd: Plugin 'unix_socket' is already installed." is shown when upgrading (MDEV-32043)

  • INSERT...SELECT Does not produce an optimizer trace although set optimizer_trace=1 is used (MDEV-29298)

  • The Enterprise Audit Plugin does not always report the user name (MENT-2035)

Related to performance

  • An ALTER using ALGORITHM=INPLACE or adding new indexes can increase the table space file size (MDEV-26740)

  • Operations that involve extending InnoDB files can be extremely slow when the data directory resides on an NFS server that uses a smaller block size than 4096 bytes (MDEV-32268)

  • innodb_undo_log_truncate=ON prevents fast shutdown (MDEV-33062)

  • Adaptive flush recommendation ignores dirty ratio and checkpoint age (MDEV-31939)

Platforms

  • In alignment with the enterprise lifecycle, MariaDB Enterprise Server 10.5.24-18 is provided for:

    • AlmaLinux 8 (x86_64, ARM64)

    • AlmaLinux 9 (x86_64, ARM64)

    • Debian 11 (x86_64, ARM64)

    • Debian 12 (x86_64, ARM64)

    • Microsoft Windows (x86_64) (MariaDB Enterprise Cluster excluded)

    • Red Hat Enterprise Linux 8 (x86_64, ARM64)

    • Red Hat Enterprise Linux 9 (x86_64, ARM64)

    • Rocky Linux 8 (x86_64, ARM64)

    • Rocky Linux 9 (x86_64, ARM64)

    • SUSE Linux Enterprise Server 12 (x86_64)

    • SUSE Linux Enterprise Server 15 (x86_64, ARM64)

    • Ubuntu 20.04 (x86_64, ARM64)

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

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