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buffered-error-logging
mariadb/mysys
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Jan Lindström df2582990d MDEV-33763 : Buffered error logging for Server error log 
New read-only system variables (set at startup, need --log-error):
* log_error_file_buffer_size: error log buffer size, default 0 (off)
* log_error_file_rotate_size: rotate the error log above this size,
  default 1073741824
* log_error_file_rotations: number of rotated files kept, default 0

Changes:
* Write the error log through the logger service, which batches writes
  in an in-memory buffer, when log_error_file_buffer_size is set.
* print_buffer_to_file() uses one static buffer, allocated on first use
  (MAX_LOG_BUFFER_SIZE+1), grown as needed and freed at shutdown.
* vprint_msg_to_log() writes lines longer than 1024 bytes in full, up
  to 1 MB.
* Galera messages use the same error log path. Debug messages are
  written only if wsrep_debug is set.
* Add mtr tests for the three variables, buffered logging, rotation and
  long lines.

Assisted-by: https://mariadb.org/governance/governance-ai-policy/
2026-10-20 09:04:41 +03:00
..
crc32
Merge branch '11.8' into bb-12.1-release
2025-10-08 09:05:38 +02:00
array.c
MDEV-32854: Make JSON_DEPTH_LIMIT unlimited
2025-09-16 10:10:08 +05:30
base64.c
…
ChangeLog
Fix remaining typos
2025-04-29 11:18:00 +10:00
charset-def.c
Merge remote-tracking branch 'github/bb-11.4-release' into bb-11.8-serg
2025-04-27 19:40:00 +02:00
charset.c
MDEV-35461 Remove redundant checks for standard library functions
2026-04-02 10:36:09 +11:00
CMakeLists.txt
Merge branch '11.8' into '12.3'
2026-06-24 12:27:13 +02:00
crc32ieee.cc
Merge branch '10.6' into 10.11
2024-05-10 20:02:18 +02:00
errors.c
Update my_snprintf’s last loose ends to suffixes
2025-02-12 10:17:44 +01:00
file_logger.c
MDEV-33763 : Buffered error logging for Server error log
2026-10-20 09:04:41 +03:00
get_password.c
Merge branch '10.6' into 10.9
2023-08-04 08:01:06 +02:00
guess_malloc_library.c
…
hash.c
MDEV-9826 More hash algorithms for PARTITION BY [LINEAR] KEY
2026-02-05 11:55:12 +11:00
lf_alloc-pin.c
Fix a stack overflow in pinbox allocator
2024-07-05 13:26:37 +10:00
lf_dynarray.c
…
lf_hash.cc
MDEV-9826 More hash algorithms for PARTITION BY [LINEAR] KEY
2026-02-05 11:55:12 +11:00
list.c
…
ma_dyncol.c
Merge branch '11.8' into 12.3
2026-05-26 21:15:58 +02:00
mf_arr_appstr.c
…
mf_cache.c
MDEV-9101 Limit size of created disk temporary files and tables
2024-05-27 12:39:04 +02:00
mf_dirname.c
…
mf_fn_ext.c
…
mf_format.c
…
mf_getdate.c
MDEV-39173 Replace sprintf with snprintf, remove deprecated pragma
2026-04-16 19:00:12 +10:00
mf_iocache2.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
mf_iocache.c
Merge branch '12.2' into 12.3
2026-02-07 22:12:32 +01:00
mf_keycache.c
Merge branch '11.8' into bb-12.1-release
2025-10-08 09:05:38 +02:00
mf_keycaches.c
…
mf_loadpath.c
…
mf_pack.c
…
mf_path.c
MDEV-32745 Add a simple MySQL to MariaDB upgrade helper
2026-05-01 15:14:06 +03:00
mf_qsort2.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
mf_qsort.c
Merge branch '11.8' into 12.0
2025-07-31 20:55:47 +02:00
mf_radix.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
mf_same.c
…
mf_sort.c
cleanup: Typo fix appliccable -> applicable
2023-01-30 15:24:15 +02:00
mf_soundex.c
…
mf_tempdir.c
MDEV-25602 get rid of __WIN__ in favor of standard _WIN32
2021-06-06 13:21:03 +02:00
mf_tempfile.c
MDEV-33379 innodb_log_file_buffering=OFF causes corruption on bcachefs
2024-02-20 13:43:19 +02:00
mf_unixpath.c
…
mf_wcomp.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
mulalloc.c
Added detection of memory overwrite with multi_malloc
2023-02-27 19:25:44 +02:00
my_access.c
Fix remaining typos
2025-04-29 11:18:00 +10:00
my_addr_resolve.c
Backport my_addr_resolve from 10.6 to get latest bug fixes in.
2023-11-27 19:08:14 +02:00
my_alloc.c
MDEV-39141 MariaDB crashes in THD::THD() due to misalignment
2026-04-30 21:55:42 +02:00
my_atomic_writes.c
MDEV-39173 Replace sprintf with snprintf, remove deprecated pragma
2026-04-16 19:00:12 +10:00
my_basename.c
…
my_bit.c
…
my_bitmap.c
MDEV-37330 Allow unordered index scan for tables partitioned by range when a priority queue is not needed
2026-02-03 15:32:12 +02:00
my_chmod.c
…
my_chsize.c
MDEV-9101 Limit size of created disk temporary files and tables
2024-05-27 12:39:04 +02:00
my_compare.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_compr_int.cc
Binlog-in-engine: New binlog implementation integrated in InnoDB
2026-01-23 03:21:03 +01:00
my_compress.c
Cleanup: Remove IF_VALGRIND
2022-04-25 09:40:40 +03:00
my_copy.c
Merge 11.8 into 12.3
2026-03-24 09:49:17 +02:00
my_cpu.c
…
my_create.c
Change my_umask{,_dir} to mode_t and remove os_innodb_umask
2024-12-11 17:21:01 +11:00
my_default.c
Merge branch '11.8' into 12.3
2026-05-26 21:15:58 +02:00
my_delete.c
MDEV-32745 followup for 7828fb475b
2026-05-04 18:21:26 +02:00
my_div.c
…
my_dlerror.c
…
my_error.c
MDEV-38654 Assertion `str[strlen(str)-1] != '\n'' failed upon federated discovery error
2026-01-26 10:01:31 +01:00
my_file.c
MDEV-21935 Mariabackup file limits set incorrectly
2026-02-25 20:04:25 +02:00
my_fopen.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_fstream.c
…
my_getexe.c
MDEV-34340 mariadb-backup immediately dumps core on NetBSD
2024-10-16 11:46:19 +11:00
my_gethwaddr.c
OS detection logic in my_gethwaddr.c is backwards
2022-11-13 13:12:37 +11:00
my_getncpus.c
MDEV-25602 get rid of __WIN__ in favor of standard _WIN32
2021-06-06 13:21:03 +02:00
my_getopt.c
Merge 11.8 to 12.3
2026-06-15 16:53:03 +02:00
my_getpagesize.c
MDEV-34062: Implement innodb_log_file_mmap on 64-bit systems
2024-09-26 18:47:12 +03:00
my_getsystime.c
MDEV-33145 Add FLUSH GLOBAL STATUS
2024-05-27 12:39:03 +02:00
my_getwd.c
MDEV-39118: test_if_hard_path crashes on recursively resolving $HOME
2026-04-20 23:05:43 +05:30
my_init.c
Merge 11.4 into 11.7
2025-01-09 09:41:38 +02:00
my_largepage.c
Merge 11.8 to 12.3
2026-06-15 16:53:03 +02:00
my_lib.c
Merge branch '11.8' into 12.3
2026-05-26 21:15:58 +02:00
my_libwrap.c
…
my_likely.c
MDEV-34348: my_hash_get_key fixes
2024-11-23 08:14:22 -07:00
my_lock.c
MDEV-32567 Remove thr_alarm from server codebase
2023-11-23 11:52:38 +11:00
my_lockmem.c
Merge 10.6 into 10.10
2023-10-14 13:36:11 +03:00
my_malloc.c
MDEV-39141 MariaDB crashes in THD::THD() due to misalignment
2026-04-30 21:55:42 +02:00
my_memmem.c
…
my_mess.c
…
my_minidump.cc
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_mkdir.c
MDEV-25602 get rid of __WIN__ in favor of standard _WIN32
2021-06-06 13:21:03 +02:00
my_mmap.c
…
my_new.cc
Fixes that enables my_new.cc (new wrapper using my_malloc)
2021-05-19 22:27:27 +02:00
my_once.c
Merge 10.11 into 11.4
2025-09-24 13:40:09 +03:00
my_open.c
MDEV-38562: mariabackup exits with success (0) despite "No space left on device" errors
2026-03-31 09:46:50 +02:00
my_port.c
…
my_pread.c
MDEV-33813 ERROR 1021 (HY000): Disk full (./org/test1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
2025-03-06 09:40:55 +02:00
my_pthread.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_quick.c
…
my_rdtsc.c
MDEV-35461 Remove redundant checks for standard library functions
2026-04-02 10:36:09 +11:00
my_read.c
…
my_redel.c
MDEV-39173 Replace sprintf with snprintf, remove deprecated pragma
2026-04-16 19:00:12 +10:00
my_rename.c
MDEV-35461 Remove redundant checks for standard library functions
2026-04-02 10:36:09 +11:00
my_rnd.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_safehash.c
MDEV-34348: my_hash_get_key fixes
2024-11-23 08:14:22 -07:00
my_safehash.h
…
my_seek.c
myseek: AIX has no "tell"
2021-03-19 11:14:53 +11:00
my_setuser.c
MDEV-39584: update help sql tables and replace KB links
2026-05-15 13:30:21 +10:00
my_sleep.c
MDEV-25602 get rid of __WIN__ in favor of standard _WIN32
2021-06-06 13:21:03 +02:00
my_stack.c
Fixup bddbef3573
2024-10-31 10:01:01 +01:00
my_static.c
cleanup: CREATE_TYPELIB_FOR() helper
2025-10-25 00:19:11 +07:00
my_static.h
Added memory allocated by my_once_malloc() to global_memory_used
2025-09-14 19:24:07 +03:00
my_symlink2.c
Change my_umask{,_dir} to mode_t and remove os_innodb_umask
2024-12-11 17:21:01 +11:00
my_symlink.c
Merge branch '10.11' into 11.4
2026-05-08 08:00:01 +02:00
my_sync.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_thr_init.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
my_thread_name.cc
MDEV-32537 due to Linux, restrict thread name to 15 characters, also in PS.
2024-07-09 13:20:49 +02:00
my_timezone.cc
MDEV-32189 follow-up: Properly initialize UErrorCode for ucal_getDefaultTimeZone()
2025-05-26 11:59:59 +02:00
my_uuid.c
cleanup: uuid
2021-10-29 18:29:01 +02:00
my_virtual_mem.c
MDEV-38671: Default to large innodb_buffer_pool_size_max (except on AIX)
2026-03-02 11:30:56 +02:00
my_win_popen.cc
Ensure that source files contain only valid UTF8 encodings (#2188)
2023-05-19 13:21:34 +01:00
my_wincond.c
MDEV-25602 get rid of __WIN__ in favor of standard _WIN32
2021-06-06 13:21:03 +02:00
my_winerr.c
…
my_winfile.cc
Merge branch '11.8' into '12.3'
2026-06-24 12:27:13 +02:00
my_winthread.c
…
my_wintoken.c
…
my_write.c
Merge branch '11.8' into 12.2
2026-01-08 12:02:45 +01:00
mysys_priv.h
post-merge changes
2024-10-29 14:47:32 +01:00
psi_noop.c
Merge branch '11.8' into bb-12.1-release
2025-10-08 09:05:38 +02:00
ptr_cmp.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
queues.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
safemalloc.c
Fixed a LOT of memory leaks in mariabackup
2025-09-04 18:08:39 +03:00
stacktrace.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
string.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
test_charset.c
MDEV-8334: Rename utf8 to utf8mb3
2021-05-19 06:48:36 +02:00
test_dir.c
…
test_thr_mutex.c
…
test_xml.c
…
testhash.c
MDEV-39173 Replace sprintf with snprintf, remove deprecated pragma
2026-04-16 19:00:12 +10:00
thr_lock.c
Merge branch '11.1' into 11.2
2024-02-02 17:43:57 +01:00
thr_mutex.c
assert in safe_mutex_lock that the mutex is initialized
2025-04-18 09:41:23 +02:00
thr_rwlock.c
MDEV-34530 dead code in the thr_rwlock.c
2024-07-17 21:25:40 +02:00
thr_timer.c
Fix review comment
2026-01-21 00:22:06 +07:00
tree.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
typelib.c
cleanup: CREATE_TYPELIB_FOR() helper
2025-10-25 00:19:11 +07:00
waiting_threads.c
Fix typos in C comments in miscellaneous files
2025-03-24 13:36:28 +11:00
wqueue.c
…
xxhash.h
MDEV-9826 More hash algorithms for PARTITION BY [LINEAR] KEY
2026-02-05 11:55:12 +11:00