The function innodb_show_mutex_status() is the only ultimate caller of
LatchCounter::iterate() via MutexMonitor::iterate(). Because the call
is not protected by LatchCounter::m_mutex, any mutex_create() or
mutex_free() that is invoked concurrently during the execution, bad
things such as a crash could happen.
The most likely way for this to happen is buffer pool resizing,
which could cause buf_block_t::mutex (which existed before MDEV-15053)
to be created or freed. We could also register InnoDB mutexes in
TrxFactory::init() if trx_pools needs to grow.
The view INFORMATION_SCHEMA.INNODB_MUTEXES is not affected, because it
only displays information about rw-locks, not mutexes.
This commit intentionally touches also MutexMonitor::iterate()
and the only code that interfaces with LatchCounter::iterate()
to make it clearer for future readers that the scattered code
that is obfuscated by templates belongs together.
This is based on
mysql/mysql-server@273a93396f
- Based on patch: d6a983351c5a454bd0cb113852f
- Update combination example for 10.2 (commit 2a3fe45dd2 added change
for 10.3+)
```
==============================================================================
TEST RESULT TIME (ms) or COMMENT
--------------------------------------------------------------------------
worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019
rpl.rpl_invoked_features 'innodb,mix' [ pass ] 1677
rpl.rpl_invoked_features 'innodb,row' [ pass ] 3516
rpl.rpl_invoked_features 'innodb,stmt' [ pass ] 1609
--------------------------------------------------------------------------
```
- `gdb` option will be added during the merge
To fix this, it is necessary to add an option to exclude the
database with the name "lost+found" from processing (the database
name will be checked by the check_if_skip_database_by_path() or
by the check_if_skip_database() function, and as a result
"lost+found" will be skipped).
In addition, it is necessary to slightly modify the verification
logic in the check_if_skip_database() function.
Also added a new test galera_sst_mariabackup_lost_found.test
MDEV-13318 introduced a condition to Mariabackup that can cause it to
hang if the server goes idle after writing a log block that has no
payload after the 12-byte header. Normal recovery in log0recv.cc would
allow blocks with exactly 12 bytes of length, and only reject blocks
where the length field is shorter than that.
This issue is caused by the commit af40a2b43e.
In btr_search_update_hash_on_insert(), btr_search_sys->hash_tables
is being accessed without taking proper ahi latch. During buffer pool
resizing, btr_get_search_table() is being accessed and it leads to
segmentation fault.
Reviewed-by: Marko Mäkelä
Problem:
=======
InnoDB allows virtual index to be referenced index in foreign key
relations. While dropping the virtual column, Inplace alter does
allow the table to be closed and open it using table name to
update dict_table_t::v_cols. While loading the table, it doesn't
allow any error to be ignored. InnoDB can't find the referenced
virtual index and fails to load the table during Inplace alter.
Solution:
=========
During inplace alter, ignore the foreign key error while loading
the table.
Reviewed-by: Marko Mäkelä
- This commit is based on patch 84fe9720a4d2483ff67b6a and suggestion of
Jean Weisbuch to use `ldconfig -p`
- Format of ldconfig output:
"libjemalloc.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libjemalloc.so.1"
```
$ ./scripts/mysqld_safe
201013 13:36:50 mysqld_safe Adding '/usr/lib/x86_64-linux-gnu/libjemalloc.so.1' to LD_PRELOAD for mysqld
201013 13:36:50 mysqld_safe Logging to '/home/anel/builds/data-10.5/mysqld_safe_anel.err'.
201013 13:36:50 mysqld_safe Starting mysqld daemon with databases from /home/anel/builds/data-10.5
```
Reviewed by: Daniel Black, Faustin Lammler
Instead of pointlessly waiting for a page flush to occur, take
the matter into our own hands and request an explicit flush.
Also, test with the minimum necessary amount of data (0 or 1 rows)
so that both page encryption and decryption will be exercised.
This patch fixes several flaws in the SST scripts that cause
failures while running tests that use version 6 IP addresses
for cluster nodes.
First, if the netcat utility is used for streaming (but not socat),
then in accordance with its command line syntax, we need to remove
the square brackets around the IPv6 address. However, for socat,
the address must contain square brackets, as before.
Secondly, if an IPv6 address is used, then from the joiner side for
a number of systems (such as Debian) we need to explicitly specify
the "-6" option, otherwise a listening socket with an IPv6 address
may not be created.
This patch also contains code improvements in the wsrep_sst_common.
Changed the code that pars the connection address - fixed the
shortcomings that sometimes led to incorrect parsing of parameters
when using shells other than the latest versions of bash.
Also, this patch removes the duplicate code that is intended
for parsing the connection address and which was located in the
wsrep_sst_mariabackup file, since all the necessary actions have
already been done in wsrep_sst_common and there they are done in
such a way that any shell is supported, not just bash.
The fix does not require separate tests, since all the
necessary tests are already present in the galera_3nodes suite.
On the contrary, after this fix, tests using IPv6 addresses can
be removed from the disabled list (this will be done in a separate
commit related to MDEV-23659).
As MariaDB tables are expected in a fixed order, the cross upgrade
previously placed roles, default_role and max_statement_time after
now unused mysql-5.7 columns.
Test:
$ cp -a /usr/local/mysql-5.7.31/data/ /tmp/m57data
$ sql/mysqld --no-defaults --skip-networking --datadir=/tmp/m57data --socket=/tmp/${PWD##*/}.sock --verbose --lc-messages-dir=$PWD/sql/share
2020-10-02 11:02:05 140135193212864 [Note] sql/mysqld (mysqld 10.2.34-MariaDB) starting as process 1457667 ...
2020-10-02 11:02:05 140135193212864 [Note] InnoDB: Mutexes and rw_locks use GCC atomic built
$ client/mysql_upgrade --no-defaults -u root -pbob -S /tmp/build-mariadb-server-10.2.sock
MySQL upgrade detected
Phase 1/7: Checking and upgrading mysql database
Processing databases
mysql
mysql.columns_priv OK
mysql.db OK
mysql.engine_cost OK
mysql.event OK
mysql.func OK
mysql.gtid_executed OK
mysql.help_category OK
mysql.help_keyword OK
mysql.help_relation OK
mysql.help_topic OK
mysql.innodb_index_stats OK
mysql.innodb_table_stats OK
mysql.ndb_binlog_index OK
mysql.plugin OK
mysql.proc OK
mysql.procs_priv OK
mysql.proxies_priv OK
mysql.server_cost OK
mysql.servers OK
mysql.slave_master_info OK
mysql.slave_relay_log_info OK
mysql.slave_worker_info OK
mysql.tables_priv OK
mysql.time_zone OK
mysql.time_zone_leap_second OK
mysql.time_zone_name OK
mysql.time_zone_transition OK
mysql.time_zone_transition_type OK
mysql.user OK
Upgrading from a version before MariaDB-10.1
Phase 2/7: Installing used storage engines
Result:
| user | CREATE TABLE `user` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(80) COLLATE utf8_bin NOT NULL DEFAULT '',
`Password` char(41) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL DEFAULT '',
`Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Insert_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Update_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Delete_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Drop_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Reload_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Shutdown_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Process_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`File_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Grant_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Index_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_db_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Super_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Execute_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Repl_slave_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Repl_client_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_user_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tablespace_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`ssl_type` enum('','ANY','X509','SPECIFIED') CHARACTER SET utf8 NOT NULL DEFAULT '',
`ssl_cipher` blob NOT NULL,
`x509_issuer` blob NOT NULL,
`x509_subject` blob NOT NULL,
`max_questions` int(11) unsigned NOT NULL DEFAULT 0,
`max_updates` int(11) unsigned NOT NULL DEFAULT 0,
`max_connections` int(11) unsigned NOT NULL DEFAULT 0,
`max_user_connections` int(11) NOT NULL DEFAULT 0,
`plugin` char(64) CHARACTER SET latin1 NOT NULL DEFAULT '',
`authentication_string` text COLLATE utf8_bin NOT NULL,
`password_expired` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`is_role` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`default_role` char(80) COLLATE utf8_bin NOT NULL DEFAULT '',
`max_statement_time` decimal(12,6) NOT NULL DEFAULT 0.000000,
`password_last_changed` timestamp NULL DEFAULT NULL,
`password_lifetime` smallint(5) unsigned DEFAULT NULL,
`account_locked` enum('N','Y') COLLATE utf8_bin NOT NULL DEFAULT 'N',
PRIMARY KEY (`Host`,`User`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Users and global privileges' |
MariaDB [(none)]> CREATE ROLE `aRole`;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> SET ROLE `aRole`;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> SET ROLE `aRole`;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> SELECT `User`, `is_role` FROM `mysql`.`user`;
+---------------+---------+
| User | is_role |
+---------------+---------+
| root | N |
| mysql.session | N |
| mysql.sys | N |
| dan | N |
| aRole | Y |
+---------------+---------+
5 rows in set (0.00 sec)
Reviewer: Anel Husakovic
Sometimes blockdev --getss returns 4096.
In that case ROW_FORMAT=COMPRESSED tables might violate
that 4096 bytes alignment.
This patch disables O_DIRECT for COMPRESSED tables.
OS_DATA_FILE_NO_O_DIRECT: new possible value for os_file_create() argument
fil_node_open_file(): do not O_DIRECT
ROW_FORMAT=COMPRESSED tables
AIO::is_linux_native_aio_supported(): minimal alignment in a general case
is 4096 and not 512.
Problem is that dropping of fts table and sync of fts table
happens concurrently during fts optimize thread shutdown.
fts_optimize_remove_table() is executed by a user thread that
performs DDL, and that the fts_optimize_wq may be removed if
fts_optimize_shutdown() has started executing.
fts_optimize_remove_table() doesn't remove the table from the queue
and it leads to above scenario. While removing the table from
fts_optimize_wq, if the table can't be removed then wait till
fts_optimize_thread shuts down.
Reviewed-by: Marko Mäkelä
This bug could manifest itself for a query with WHERE condition containing
top level OR formula such that each conjunct contained a single-range
condition supported by the same index. One of these range conditions must
be fully covered by another range condition that is used later in the OR
formula. Additionally at least one of these condition should be ANDed with
a sargable range condition supported by a different index.
There were several attempts to fix related problems for OR conditions after
the backport of range optimizer code from MySQL (commit
0e19f3e36f). Unfortunately the first of these
fixes contained typo remained unnoticed until recently. This typo bug led
to rejection of valid range accesses. This patch fixed this typo bug.
The fix revealed another two bugs: one in a constructor for SEL_ARG,
the other in the function tree_or(). Both are fixed in this patch.
This regression for debug builds was introduced by
MDEV-23101 (commit 224c950462).
Due to MDEV-16664, the parameter
innodb_lock_schedule_algorithm=VATS
is not enabled by default.
The purpose of the added assertions was to enforce the invariant that
Galera replication cannot be enabled together with VATS due to MDEV-12837.
However, upon closer inspection, it is obvious that the variable 'lock'
may be assigned to the null pointer if no match is found in the
previous->hash list.
lock_grant_and_move_on_page(), lock_grant_and_move_on_rec():
Assert !lock->trx->is_wsrep() only after ensuring that lock
is not a null pointer.
1. rr record -h randomizes number of processors. Disable THREAD_POOL_SIZE check.
2. check for kernel.perf_event_paranoid for user-friendly error message.
Remove from debian build:
* tokudb
* mroonga
* spider
* ograph
* embedded server
Add ccache to debian build.
Backport 10.3 changes to autobake-deb
that make travis faster.
Merge instructions:
Drop this commit on merge to 10.3
In MDEV-21452, SAFE_MUTEX flagged an ordering problem that involved
trx_t::mutex, LOCK_global_system_variables, and LOCK_commit_ordered
when running
./mtr --no-reorder\
binlog.binlog_checksum,mix binlog.binlog_commit_wait,mix
Because LOCK_commit_ordered is acquired by replication code before
innobase_commit_ordered() is invoked, and because LOCK_commit_ordered
should be below LOCK_global_system_variables in the global latching
order, it turns out that we must avoid acquiring
LOCK_global_system_variables in any low-level code.
It also turns out that lock_rec_lock() acquires lock_sys_t::mutex
and then carries on to call lock_rec_enqueue_waiting(), which may
invoke THDVAR() via thd_lock_wait_timeout(). This call is problematic
if THDVAR() had never been invoked in that thread earlier.
innobase_trx_init(): Let us invoke THDVAR() at the start of an InnoDB
transaction so that future invocations of THDVAR() will avoid
LOCK_global_system_variables acquisition on the same THD. Because
the first call to intern_sys_var_ptr() will initialize all session
variables by not passing the offset to sync_dynamic_session_variables(),
this will indeed make any future THDVAR() invocation mutex-free.
There are some THDVAR() calls in other code (related to indexed virtual
columns, fulltext indexes, and DDL operations). No SAFE_MUTEX warning
was known for those, but there does not appear to be any replication
test coverage for indexed virtual columns or fulltext indexes. DDL should
be covered, and perhaps DDL code paths were already invoking THDVAR()
while not holding any InnoDB mutex.
Side note: MySQL should avoid this type of deadlocks since
mysql/mysql-server@4d275c8995.
MariaDB never defined alloc_and_copy_thd_dynamic_variables(),
because we prefer to avoid overhead during connection creation.
An important part of the deadlock could be the current handling of
SET GLOBAL binlog_checksum=NONE; and similar assignments.
In binlog_checksum_update(), we would hold LOCK_global_system_variables
while potentially acquiring LOCK_commit_ordered in MYSQL_BIN_LOG::open().
Even if that code was changed later to release
LOCK_global_system_variables during the write to mysql_bin_log,
it could be a good idea for performance to avoid invoking the
expensive code path of THDVAR() while holding any InnoDB mutexes,
such as lock_sys.mutex in lock_rec_enqueue_waiting().
Thanks to Andrei Elkin for debugging the SAFE_MUTEX issue, and to
Sergei Golubchik for the suggestion to invoke THDVAR() early.
Changes to be committed:
modified: mysql-test/suite/sys_vars/r/wsrep_cluster_address_basic.result
modified: mysql-test/suite/sys_vars/t/wsrep_cluster_address_basic.test
The setting innodb_lock_schedule_algorithm=VATS that was introduced
in MDEV-11039 (commit 021212b525)
causes conflicting exclusive locks to be incorrectly granted to
two transactions. Specifically, in lock_rec_insert_by_trx_age()
the predicate !lock_rec_has_to_wait_in_queue(in_lock) would hold even
though an active transaction is already holding an exclusive lock.
This was observed between two DELETE of the same clustered index record.
The HASH_DELETE invocation in lock_rec_enqueue_waiting() may be related.
Due to lack of progress in diagnosing the problem, we will deprecate the
option and issue a warning that using it may corrupt data. The unsafe
option was enabled between
commit 0c15d1a6ff (MariaDB 10.2.3)
and the parent of
commit 1cc1d0429d (MariaDB 10.2.17, 10.3.9).
Amend check for unread client data in threadpool.
THD::NET will have unread data, in case client uses compression, and
wraps multiple commands into a single compression packet
MariaDB C/C sends COM_STMT_RESET+COM_STMT_EXECUTE, and wraps it into
a single compressed packet, when compression is on, thus trying to use
compression and prepared statements against a threadpool-enabled server
will result into a hang, before this patch.
In fts_optimize_remove_table(), InnoDB tries to access the
fts_optimize_wq after shutting down the fts optimize thread.
This issue caused by the commit a41d429765.
Fix should check for fts optimize thread shutdown state
before checking fts_optimize_wq.
ibuf_merge_or_delete_for_page(): Do not attempt to invoke
ibuf_delete_recs() on a page of the change buffer itself.
The caller could already be holding ibuf->index->lock,
and an attempt to acquire it in S mode would hang the release server
or cause an assertion failure in rw_lock_s_lock_func() in a debug
server.
This problem was reproducible on 1 out of 2 runs of the following:
./mtr --no-reorder \
innodb.innodb-page_compression_default \
innodb.innodb-page_compression_snappy \
innodb.innodb-page_compression_zip \
innodb.innodb_wl6326_big innodb.xa_recovery
