Release Notes for MariaDB Enterprise Server 10.5.8-5
This page is part of MariaDB's Documentation.
The parent of this page is: Release Notes for MariaDB Enterprise Server 10.5
Topics on this page:
Overview
This fifth release of MariaDB Enterprise Server 10.5 is a maintenance release. This release includes security fixes.
MariaDB Enterprise Server 10.5.8-5 was released on 2020-12-14.
Fixed Security Vulnerabilities
CVE (with cve.org link) | CVSS base score |
6.5 | |
4.9 | |
4.9 | |
4.9 | |
4.9 | |
N/A (Critical)#1 |
- #1:
MariaDB CVEs are assigned a word rating instead of a CVSS base score. See the MariaDB Engineering Policy for details.
Notable Changes
A new privilege REPLICA MONITOR has been introduced with this version to fix a problem when upgrading to 10.5. A replica user couldn't run SHOW REPLICA STATUS. Upgrades from 10.4 to 10.5 now adjust the privileges automatically. The new privilege needs to be added manually for a replica user when updating from an earlier 10.5 version. For more information on MariaDB Enterprise Server 10.5 privileges, see "Privileges Comparison ES10.4 and ES10.5.8-5".
Users of MariaDB MaxScale's MariaDB Monitor upgrading from a prior version of MariaDB Enterprise Server 10.5 who have used the new 10.5 privileges must ensure the updated privilege has been granted to the MaxScale user and Replication user. For detailed privilege information, see Configuring MariaDB Monitor's User Account.
Galera
wsrep
library updated to 26.4.6 in MariaDB Enterprise Cluster.The audit plugin (not MariaDB Enterprise Audit) did not log proxy users. The new plugin version 2.0.3 introduces an event sub-type PROXY_
CONNECT for event type CONNECT. (MDEV-19443)On connect, if a proxy user is used, an extra line will be logged:
TIME,HOSTNAME,user,localhost,ID,0,PROXY_CONNECT,test,plug_dest@%,0
Better MariaDB GTID support for the mariabackup --slave-info option. (MDEV-19264)
New global InnoDB variable innodb_
max_ (MDEV-16952)purge_ lag_ wait The new parameter --include-unsupported for the script mariadb_
es_ can be used to enable a repository of unsupported packages in the repository configuration. The repository currently includes therepo_ setup CONNECT
Storage Engine. The storage engine can be installed byyum install MariaDB-connect-engine
orapt-get install mariadb-plugin-connect-engine
(MENT-1003)MariaDB Enterprise Audit did not log proxy users. The new plugin version 2.0.3 introduces an event sub-type
PROXY_CONNECT
for event type CONNECT. (MENT-977)On connect, if a proxy user is used, an extra line will be logged:
TIME,HOSTNAME,user,localhost,ID,0,PROXY_CONNECT,test,plug_dest@%,0
The event type can also be used in filters "
connect_event
":["CONNECT","DISCONNECT","PROXY_CONNECT"]
Performance improvements for comparisons of temporal data types with temporal literals. (MDEV-23551)
Performance improvements for comparisons of temporal data types. (MDEV-23537)
For MariaDB Enterprise Server on MS Windows, NTFS file metadata on NTFS is not flushed anymore, reducing the write workload I/O. (MDEV-24037)
Improved write performance for InnoDB. (MDEV-23855, MDEV-23399)
The S3 storage engine now allows you to specify a port (--s3-port) to connect to and to force to use HTTP (--s3-use-http). So it is now possible to connect to other solutions which provide the same open API used for Amazon S3. (MDEV-23662)
Performance improvements for conversions from temporal data types to string. (MDEV-23568)
Performance improvements for handling numeric data. (MDEV-23478)
Default changed from
1
to0
for command line option --temp-pool. Benchmarking showed that the old default causes a heavy mutex contention. (MDEV-22278)
Issues Fixed
Can result in data loss
Data corruption possible for encrypted InnoDB tables if the non-default option innodb_
background_ is used. (MENT-910)scrub_ data_ uncompressed=ON Temporary tables created by the user or the system can overwrite existing files on creation. (MDEV-23569)
Table can disappear after ALTER TABLE command if SET FOREIGN_
KEY_ is used before altering a child table to remove a primary key. (MDEV-22934)CHECKS=0 Server crashes on an instant
ALTER TABLE .. MODIFY
of a column from "not null
" to "null
". A virtual column must exist in the table. (MDEV-23672)One instant ALTER TABLE including multiple
RENAME
for indexes can corrupt the index cache. (MDEV-23356)DELETE .. FOR PORTION OF
statement accepts non-constantFROM .. TO
clause. This contradicts the documentation and is inconsistent with the behavior of the UPDATE statement. (MDEV-22596)Change buffer corruption when reallocating a recently freed page. (MDEV-23973)
S3 storage engine delayed replication can drop a table when running a master-replica setup where both master and replica are pointed at the same S3 storage. (MDEV-23691)
An UPDATE which is changing multiple rows can result in corrupted data if a
WITHOUT OVERLAPS
key will be modified. (MDEV-22714)Memory corruption for tables using a column of type BIT in a
WITHOUT OVERLAPS
key. (MDEV-22608)
Can result in a hang or crash
InnoDB persistent stats analyze forces full scan which results in a lock crash. (MENT-1024)
InnoDB hang on INSERT with error message
Semaphore wait has lasted > 300 seconds.
(MENT-1007)Server crash can happen on filesort with a setting for max_
sort_ to a value lower than the default oflength 64
(MDEV-24033)Potential stack overflow in InnoDB fulltext search with a complex
MATCH .. AGAINST
string. (MDEV-23999)Mariabackup can hang if the server goes idle after a particular kind of redo log write. (MDEV-23982)
A server crash can occur when encryption is enabled for temporary tables (encrypt_
tmp_ ) and queries use window functions. (MDEV-23867)files=ON A crash of MariaDB Server is possible when binary logging is activated, caused by improper raising of an error or replication checksum. (MDEV-23832)
InnoDB assertion on TRUNCATE after
ALTER TABLE .. DISCARD TABLESPACE
(MDEV-23705)Server crashes after failed attempt to create unique key on virtual column. (MDEV-23685)
Possible server crash when using an index on a spatial data type with InnoDB. (MDEV-23600)
Possible server crash when a string function is used for a column of type DATETIME and the string function is used in a subquery which is returning a row. (MDEV-23535)
MariaDB Enterprise Cluster node can crash on high INSERT, DELETE, or UPDATE load from many connections executed on the same table with foreign keys. (MDEV-23557)
Server crashes if a query is executed on an InnoDB table with a foreign key where the foreign key was removed while using SET FOREIGN_
KEY_ . This case should result in an SQL error. (MDEV-23470)CHECKS=0 Recursive procedure call ends with a crash instead of SQL error. (MDEV-23463)
InnoDB fails to open the table during removal of
VIRTUAL
column DDL while using SET FOREIGN_KEY_ , due to lack of referenced index. (MDEV-23387)CHECKS=0 Server crash when altering a table after its tablespace has been discarded already. (MDEV-22939)
SHOW BINLOG EVENTS FROM ... caused a variety of non-determinism failures if the given position did not exist. (MDEV-22473)
SET GLOBAL `replicate_do_db` = DEFAULT
causes a crash. (MDEV-20744)JSON_MERGE_PATCH(json_doc, json_doc[, json_doc] ...)
can crash if the first parameter is set toNULL
and the second is not valid JSON. (MDEV-20593)Server crashes after DELETE with
ON DELETE SET NULL
for foreign key and a virtual column in index. (MDEV-20396)Server can crash on a prepared SELECT statement executed via MariaDB MariaDB Connector/ODBC. (MDEV-19838)
Crash on SELECT on a table that contains indexed virtual columns. (MDEV-18366)
Possible server crash for queries using the window function NTH_
VALUE() (MDEV-15180)Possible crash when using Spider Tables and partitions. (MDEV-20100)
MariaDB Enterprise Audit crashes. (MENT-1011)
MariaDB Enterprise Cluster node crash with Galera message
Assertion `server_state_.rollback_mode() == wsrep::server_state::rm_async' failed.
in the error log. (MENT-937)Galera node crashes or hangs during IST if the connection between donor and joiner is unstable or if cluster configuration changes take place at the same time. (MENT-514)
MariaDB Enterprise Cluster crash if bulk updates are executed on Galera. (MDEV-23872)
Server crash when SELECT WSREP_
LAST_ while Galera replication is not enabled (wsrep-on=OFF). (MDEV-23466)SEEN_ GTID() Server crash if function FORMAT(num, decimal_
position[, locale]) is used with a decimal_position > 30. (MDEV-23415) Multiple calls to a Stored Procedure from another Stored Procedure crashes server. (MDEV-23094)
Server crash when an invalid wsrep_
provider is set. (MDEV-23092)Server hang if
TABLE LOCK
is used afterBACKUP LOCK
was used. (MDEV-22879)Server crash on table updates using
FOR PORTION OF
(MDEV-22805)Assertion on executing CREATE TABLE with a prepared statement using EXECUTE IMMEDIATE when wsrep_
on ison
and wsrep_osu_ ismethod TOI
(MDEV-22681)Server crash if a transaction is started with
SET SESSION wsrep_on=1
, but the global wsrep_on is0
(MDEV-22443)Spider crash when used with sharding and XA, and spider_
internal_ (default). (MDEV-19794)xa=OFF MariaDB Enterprise Cluster node can crash with an error message
WSREP: MDL BF-BF conflict
in the error log. The error is related to running OPTIMIZE or REPAIR on tables with foreign keys. (MDEV-21577)If resizing the redo log to be triggered immediately before a server shutdown is initiated, and if innodb_
flush_ (non default setting), the shutdown may hang because the page cleaner thread fails to finish its job. (MENT-1031)sync=0 InnoDB hangs with innodb_
flush_ (MENT-992)sync=OFF Crash recovery fails with Error
InnoDB: Missing FILE_CHECKPOINT at ... between the checkpoint ... and the end ...
after restart, if the redo log size has been changed withSET GLOBAL
(MENT-795)Replica crashes upon rename of a view. (MDEV-23764)
The server can crash when an UPDATE is executed on a
HEAP
table usingWITHOUT OVERLAPS
, and the UPDATE is done for a value of a compound key which is included in theWITHOUT OVERLAPS
definition. (MDEV-22677)
Can result in unexpected behavior
SHOW RELAYLOG EVENTS can return incorrect BEGIN event information from the binary log, prepended with set foreign_
key_ , check_checks=1 constraint_ checks=1; Defining a view with SQL syntax
ISNULL(ID)=0
incorrectly returns a syntax error. (MENT-1015)MariaDB Enterprise Backup reports an error that it cannot find an Aria log file
'./aria_log.00000000'
(MENT-907)MariaDB Enterprise Backup failure for incremental backups. (MDEV-24026)
Aborting a query on an InnoDB table with KILL QUERY does not show an SQL error message, if the query could not be aborted. (MDEV-23938)
Optimizer has chosen an inefficient plan, if a multi-component index, a second index, and a
WHERE
orON
clause with conditions over these indexes are used. (MDEV-23811)Some rounding has been done in an unexpected way for decimal numbers. (MDEV-23702)
Server crashes after changing innodb_
buffer_ at runtime via a SET statement. (MDEV-23693)pool_ size Creating a view removes parentheses on expressions from the SELECT, which results in wrong results. (MDEV-23656)
mysql_tzinfo_to_sql
under InnoDB is slow. (MDEV-23440)UDF cannot be uninstalled if the UDF library file doesn't exist. (MDEV-23327)
CAST(expr AS type) with type
DECIMAL
can return an unexpected result, if the given value for "expr" includes many leading zeros. (MDEV-23105)Galera replication broken if only one timezone is loaded. (MDEV-22626)
Galera SST donation fails,
FLUSH TABLES WITH READ LOCK
times out. (MDEV-22543)Memory leaks possible after ALTER TABLE with
FOREIGN KEY
(MDEV-22277)MariaDB Enterprise Backup SST fails for MariaDB Enterprise Cluster if data-directory has
lost+found
directory. (MDEV-21951)SHOW BINLOG EVENTS FROM ... caused a variety of non-determinism failures if the given position did not exist. (MDEV-21839)
Linux AIO returned
OS error 22
if parameters set to innodb_flush_ and innodb_method O_ DIRECT use_ (default). (MDEV-21584)native_ aio=1 CREATE OR REPLACE TRIGGER
in Galera cluster not replicating, if a trigger with the same name already exists. (MDEV-21578)mysqld_multi
no longer works with different server binaries. (MDEV-21526)Possible error for incremental backup --prepare for encrypted tablespaces. (MDEV-20755)
Possible slow server start and stop if full text indexes are used. (MDEV-18867)
The parentheses in a
VIEW
can be defined incorrectly for a combination of=
andBETWEEN
(MDEV-17408)ER_BASE64_DECODE_ERROR
upon replaying binary log. (MDEV-16372)Several IPv6 issues with MariaDB Enterprise Cluster powered by Galera. (MDEV-21770, MDEV-23576, MDEV-23580, MDEV-23581, MDEV-23574)
Subquery on
information_schema
fails with an error message. (MENT-1016)AUTO_INCREMENT
does not increment with compound primary key on partitioned table. (MENT-997)CREATE TEMPORARY TABLE .. LIKE
(system versioned table) returns error if unique index is defined in the table. (MDEV-23968)CREATE .. SELECT
can result in empty result on join versioned table. (MDEV-23799)Error
ERROR 4142 (HY000): SYSTEM_TIME partitions in table `t1` does not support historical query
upon querying a view, when that view is selecting from the versioned table with partitions. It only happens if the view itself was created usingFOR SYSTEM_TIME ALL
(MDEV-23779)Disk space not reused for Blob in data file. (MDEV-23072)
mariadb-dump will not dump sequence definition details on
--no-data
dump. (MDEV-21786)CHECK TABLE fails to validate corruption on a table that was corrupted by a bug related to instant
ADD
orDROP
(fixed in MariaDB Enterprise Server 10.3.17, 10.4.7). (MDEV-21251)Subquery execution not terminated after
LIMIT ROWS EXAMINED
is exceeded. (MDEV-18335)Deadlock between
BACKUP STAGE BLOCK_COMMIT
and parallel replication. (MDEV-23586)Possible memory leak in galera library. (MDEV-23559)
Wrong result of MIN(time_
expr) and MAX(time_expr) withGROUP BY
(MDEV-23525)Syntax error results in misleading message on SHOW CREATE PROCEDURE about missing system table
mysql.proc
(MDEV-23518)FORMAT(num, decimal_
position[, locale]) where decimal position is 0 or 38 and num isDECIMAL(38,38)
returns incorrect results. (MDEV-23118)A query result includes a data row twice depending on the
WHERE
clause used, if partitioning is used. (MDEV-22246)Assertion after
ROLLBACK AND CHAIN
(MDEV-22055)Replica user can't run SHOW REPLICA STATUS after upgrade to 10.5. (MENT-995)
galera_new_cluster
starts server as standalone instance with no warnings or errors when wsrep_on=OFF , although the expectation is to bootstrap a cluster. (MENT-979)Wrong value
#wsrep_provider_options="gcache.size=1024Mb"
inserver.cnf
forwsrep_provider_options
The server would not start after removing the comment. (MENT-970)Wrongly reported
SQL Error (1038): Out of sort memory
for queries, where dependent subqueries use theORDER BY
clause. (MDEV-24015)An
ALTER TABLE .. RENAME
to change a column to uppercase doesn't work. (MDEV-23852)IN-to-subquery conversion is not visible in optimizer trace. (MDEV-23767)
DROP TRIGGER is not replicated in MariaDB Enterprise Cluster with Galera Replication. (MDEV-23638)
Related to install and upgrade
mariadb_
es_ curl failed on Ubuntu Focal ifrepo_ setup ca-certificates
is not installed. Now it will prompt an error about missingca-certificates
(MENT-971)Upgrade wizard not offered during 10.5 MSI installation on Windows. (MDEV-23462)
Changes in Storage Engines
This release incorporates MariaDB ColumnStore storage engine version 5.5.1.
Interface Changes
innodb_
lru_ system variable addedflush_ size innodb_
lru_ system variable default value changed fromscan_ depth 1024
to1536
innodb_
max_ system variable default value changed fromdirty_ pages_ pct 75.000000
to90.000000
innodb_
max_ system variable addedpurge_ lag_ wait mariadbd --innodb-lru-flush-size command-line option added
mariadbd --innodb-max-purge-lag-wait command-line option added
mariadbd --s3-port command-line option added
mariadbd --s3-use-http command-line option added
performance_
schema_ system variable maximum value changed fromdigests_ size 200
to1048576
REPLICA MONITOR user privileges added
s3_
port system variable addeds3_
use_ system variable addedhttp
Platforms
In alignment to the enterprise lifecycle, MariaDB Enterprise Server 10.5.8-5 is provided for:
CentOS 7
CentOS 8
Debian 9
Debian 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server 15
Ubuntu 16.04
Ubuntu 18.04
Ubuntu 20.04
Microsoft Windows
Some components of MariaDB Enterprise Server might not support all platforms. For additional information, see "MariaDB Corporation Engineering Policies".
Installation Instructions
Enterprise Cluster Topology with MariaDB Enterprise Server 10.5
Primary/Replica Topology with MariaDB Enterprise Server 10.5
HTAP Topology with MariaDB Enterprise Server 10.5 and MariaDB Enterprise ColumnStore 5
Single-Node Enterprise ColumnStore 5 with MariaDB Enterprise Server 10.5 and Object Storage
Single-Node Enterprise ColumnStore 5 with MariaDB Enterprise Server 10.5
Enterprise Spider Sharded Topology with MariaDB Enterprise Server 10.5
Enterprise Spider Federated Topology with MariaDB Enterprise Server 10.5