The Ultimate Guide to High Availability with MariaDB

MariaDB 10.9.8 Release Notes

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Note: This page describes features in the source repository for MariaDB 10.9. There are currently no official packages or binaries available for download which contain the features. If you want to try out any of the new features described here you will need to get and compile the code yourself.

MariaDB 10.9 is a previous short-term stable series of MariaDB, maintained until August 2023. It is an evolution of MariaDB 10.8 with several entirely new features.

MariaDB 10.9.8 is a Stable (GA) release.

MariaDB 10.9.8 is the last release of the MariaDB 10.9 release series.

For an overview of MariaDB 10.9 see the What is MariaDB 10.9? page.

Thanks, and enjoy MariaDB!

Notable Items

Upgrading from MySQL

  • MariaDB now detects and converts previously incompatible MySQL partition schemes (MDEV-29253)

General

  • As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.4 for Ubuntu 18.04 LTS "Bionic" and Ubuntu 22.10 "Kinetic"
  • mysqldump --force doesn't ignore error as it should (MDEV-31092)
  • 280 Bytes lost in mysys/array.c, mysys/hash.c, sql/sp.cc, sql/sp.cc, sql/item_create.cc, sql/item_create.cc, sql/sql_yacc.yy:10748 when using oracle sql_mode (MDEV-26186)
  • SQL/PL package body does not appear in I_S.ROUTINES.ROUTINE_DEFINITION (MDEV-30662)
  • Unexpected result when combining DISTINCT, subselect and LIMIT (MDEV-28285)
  • ROW variables do not get assigned from subselects (MDEV-31250)

Character Sets, Data Types

  • UBSAN: null pointer passed as argument 1, which is declared to never be null in my_strnncoll_binary on SELECT ... COUNT or GROUP_CONCAT (MDEV-28384)
  • Possibly wrong result or Assertion `0' failed in Item_func_round::native_op (MDEV-23838)
  • Assertion `(length % 4) == 0' failed in my_lengthsp_utf32 on SELECT (MDEV-29019)
  • UBSAN: negation of -X cannot be represented in type 'long long int'; cast to an unsigned type to negate this value to itself in Item_func_mul::int_op and Item_func_round::int_op (MDEV-30932)

InnoDB

  • Crashing on I/O error is unhelpful (MDEV-27593)
  • SIGSEGV in log_sort_flush_list() in InnoDB crash recovery (MDEV-31354)
  • InnoDB tables are being flagged as corrupted on an I/O bound server (MDEV-31767)
  • Duplicate entry allowed into a UNIQUE column (MDEV-31120)
  • Server Status Innodb_row_lock_time% is reported in seconds (MDEV-29311)
  • innochecksum dies with Floating point exception (MDEV-31641)
  • Add InnoDB engine information to the slow query log (MDEV-31558)
  • Deadlock with 3 concurrent DELETEs by unique key (MDEV-10962)
  • innodb protection against dual processes accessing data insufficient (MDEV-31568)
  • ER_DUP_KEY in mysql.innodb_table_stats upon RENAME on sequence (MDEV-31607)
  • Assertion `!strcmp(index->table->name.m_name, "SYS_FOREIGN") || !strcmp(index->table->name.m_name, "SYS_FOREIGN_COLS")' failed in btr_node_ptr_max_size (MDEV-19216)
  • InnoDB: Failing assertion: page_type == i_s_page_type[page_type].type_value (MDEV-31386)
  • btr_estimate_n_rows_in_range() accesses unfixed, unlatched page (MDEV-30648)
  • MODIFY COLUMN can break FK constraints, and lead to unrestorable dumps (MDEV-31086)
  • Recovery or backup failure after innodb_undo_log_truncate=ON (MDEV-31487)
  • Assertion 'n & PENDING' failed in fil_space_t::set_needs_flush() (MDEV-31442)
  • fil_node_open_file() releases fil_system.mutex allowing other thread to open its file node (MDEV-31256)
  • ASAN errors in dict_v_col_t::detach upon adding key to virtual column (MDEV-31416)
  • Purge trying to access freed secondary index page (MDEV-31264)
  • Freed data pages are not always being scrubbed (MDEV-31253)
  • InnoDB recovery hangs after reporting corruption (MDEV-31353)
  • !cursor->index->is_committed() in row0ins.cc after update to 10.4.13 from 10.3.21 (MDEV-22739)
  • innodb_undo_log_truncate=ON fails to wait for purge of enough transaction history (MDEV-31355)
  • SET GLOBAL innodb_undo_log_truncate=ON does not free space when no undo logs exist (MDEV-31382)
  • innodb_read_ahead_threshold (linear read-ahead) does not work (MDEV-29967)
  • InnoDB recovery and mariadb-backup --prepare fail to report detailed progress (MDEV-29911)
  • fil_ibd_create() may hijack the file handle of an old file (MDEV-31347)
  • innodb_undo_log_truncate=ON recovery results in a corrupted undo log (MDEV-31373)
  • Server freeze due to innodb_change_buffering and innodb_file_per_table=0 (MDEV-31088)
  • Change buffer entries are left behind when freeing a page, causing secondary index corruption when the page is later reused (MDEV-31385)

Aria

  • Various crashes upon INSERT/UPDATE after changing Aria settings (MDEV-28054)
  • Various crashes/asserts/corruptions when Aria encryption is enabled/used, but the encryption plugin is not loaded (MDEV-26258)

Spider

  • SIGSEGV in spider_db_open_item_field and SIGSEGV in spider_db_print_item_type, on SELECT (MDEV-29447)
  • Spider variables that double as table params overriding mechanism is buggy (MDEV-31524)

Optimizer

  • Assertion `last_key_entry >= end_pos' failed in virtual bool JOIN_CACHE_HASHED::put_record() (MDEV-31348)
  • Problem with open ranges on prefix blobs keys (MDEV-31800)
  • Equal on two RANK window functions create wrong result (MDEV-20010)
  • Recursive CTE execution is interrupted without errors or warnings (MDEV-31214)
  • Assertion `s->table->opt_range_condition_rows <= s->found_records' failed in apply_selectivity_for_table (MDEV-31449)
  • Inconsistency between MRR and SQL layer costs can cause poor query plan (MDEV-31479)
  • MAX_SEL_ARG memory exhaustion is not visible in the optimizer trace (MDEV-30964)
  • SHOW TABLES not working properly with lower_case_table_names=2 (MDEV-30765)
  • Segfault on select query using index for group-by and filesort (MDEV-30143)

Replication

  • Parallel Slave SQL Thread Can Update Seconds_Behind_Master with Active Workers (MDEV-30619)
  • ALTER SEQUENCE ends up in optimistic parallel slave binlog out-of-order (MDEV-31503)
  • STOP SLAVE takes very long time on a busy system (MDEV-13915)
  • On slave XA COMMIT/XA ROLLBACK fail to return an error in read-only mode (MDEV-30978)
  • Calling a function from a different database in a slave side trigger crashes (MDEV-29894)

Galera

  • Node never returns from Donor/Desynced to Synced when wsrep_mode = BF_ABORT_MARIABACKUP (MDEV-31737)
  • Node has been dropped from the cluster on Startup / Shutdown with async replica (MDEV-31413)
  • KILL QUERY maintains nodes data consistency but breaks GTID sequence (MDEV-31075)
  • Assertion failure !lock.was_chosen_as_deadlock_victim in trx0trx.h:1065 (MDEV-30963)
  • MariaDB stuck on starting commit state (waiting on commit order critical section) (MDEV-29293)
  • Assertion state() == s_aborting || state() == s_must_replay failed in int wsrep::transaction::after_rollback() (MDEV-30013)
  • Assertion !wsrep_has_changes(thd) || (thd->lex->sql_command == SQLCOM_CREATE_TABLE && !thd->is_current_stmt_binlog_format_row()) || thd->wsrep_cs().transaction().state() == wsrep::transaction::s_aborted failed (MDEV-30388)
  • Server crashes when wsrep_sst_donor and wsrep_cluster_address set to NULL (MDEV-28433)
  • Create temporary sequence can cause inconsistency (MDEV-31335)
  • Galera 4 unable to query cluster state if not primary component (MDEV-21479)

Changelog

For a complete list of changes made in MariaDB 10.9.8, with links to detailed information on each push, see the changelog.

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MariaDB may already be included in your favorite OS distribution. More information can be found on the Distributions which Include MariaDB page.

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