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Marko Mäkelä 44dce3b207 MDEV-29986 Set innodb_undo_tablespaces=3 by default 
Starting with commit baf276e6d4 (MDEV-19229)
the parameter innodb_undo_tablespaces can be increased from its
previous default value 0 while allowing an upgrade from old databases.

We will change the default setting to innodb_undo_tablespaces=3
so that the space occupied by possible bursts of undo log records
can be reclaimed after SET GLOBAL innodb_undo_log_truncate=ON.

We will not enable innodb_undo_log_truncate by default, because it
causes some observable performance degradation.

Special thanks to Thirunarayanan Balathandayuthapani for diagnosing
and fixing a number of bugs related to this new default setting.

Tested by: Matthias Leich, Axel Schwenke, Vladislav Vaintroub
(with both values of innodb_undo_log_truncate)
2023-01-13 12:46:30 +02:00
..
audit_null
auth_dialog
auth_ed25519 Merge 10.3 into 10.4 2021-05-25 15:38:57 +03:00
auth_examples
auth_gssapi MDEV-26715 Windows/installer - allow passwordless login for root 2022-11-08 14:58:47 +01:00
auth_pam Merge branch '10.6' into 10.7 2022-05-11 11:25:33 +02:00
auth_pipe
auth_socket Early return from auth_socket system checks on Windows 2021-09-11 01:33:29 +02:00
aws_key_management Merge branch '10.4' into 10.5 2021-07-31 23:19:51 +02:00
cracklib_password_check Merge branch '10.6' into 10.7 2022-10-29 19:22:04 +02:00
daemon_example perfschema memory related instrumentation changes 2020-03-10 19:24:22 +01:00
debug_key_management
disks Merge 10.5 into 10.6 2022-09-20 16:53:20 +03:00
example_key_management
feedback Merge branch '10.10' into 10.11 2022-11-02 13:08:01 +01:00
file_key_management Merge 10.3 into 10.4 2022-10-25 10:04:37 +03:00
fulltext
func_test MDEV-23479: Add a THD* argument to Item_func_or_sum::fix_length_and_dec() 2022-03-30 17:00:17 +05:30
handler_socket Merge 10.4 into 10.5 2022-12-13 14:39:18 +02:00
hashicorp_key_management MDEV-29986 Set innodb_undo_tablespaces=3 by default 2023-01-13 12:46:30 +02:00
locale_info MDEV-22214 mariadbd.exe calls function mysqld.exe, and crashes 2020-04-10 19:05:26 +02:00
metadata_lock_info remove mysql_declare_plugin declaration from some plugins 2020-07-04 01:44:47 +02:00
password_reuse_check Merge 10.9 into 10.10 2022-11-28 13:43:41 +02:00
provider_bzip2 SUMMARY/DESCRIPTION for compression provider RPMs 2021-12-08 14:57:37 +01:00
provider_lz4 SUMMARY/DESCRIPTION for compression provider RPMs 2021-12-08 14:57:37 +01:00
provider_lzma SUMMARY/DESCRIPTION for compression provider RPMs 2021-12-08 14:57:37 +01:00
provider_lzo SUMMARY/DESCRIPTION for compression provider RPMs 2021-12-08 14:57:37 +01:00
provider_snappy SUMMARY/DESCRIPTION for compression provider RPMs 2021-12-08 14:57:37 +01:00
qc_info MDEV-27009 Add UCA-14.0.0 collations 2022-08-10 15:04:24 +02:00
query_response_time Merge 10.5 into 10.6 2022-09-20 16:53:20 +03:00
server_audit Merge branch '10.6' into 10.7 2022-05-11 11:25:33 +02:00
simple_password_check Merge branch '10.6' into 10.7 2022-08-08 17:12:32 +02:00
sql_errlog
test_sql_service Fixed usage of unitialised value error in test_sql_service 2022-12-20 22:34:53 +02:00
type_geom change buitin plugin types from Alpha to Stable as needed 2020-08-07 13:36:11 +02:00
type_inet Merge 10.9 into 10.10 2022-09-21 10:59:56 +03:00
type_mysql_json Merge 10.6 into 10.7 2022-07-27 18:26:21 +03:00
type_test Merge remote-tracking branch 'origin/10.4' into 10.5 2022-09-14 16:24:51 +04:00
type_uuid Merge 10.8 into 10.9 2022-09-21 10:07:09 +03:00
user_variables Merge 10.8 into 10.9 2022-09-21 10:07:09 +03:00
userstat Merge 10.4 into 10.5 2021-04-14 11:35:39 +03:00
versioning Merge 10.4 into 10.5 2022-04-06 10:06:39 +03:00
win_auth_client Vanilla cleanups and refactorings 2021-10-26 17:07:46 +02:00
wsrep_info Merge branch '10.4' into 10.5 2022-10-02 14:38:13 +02:00