MariaDB-backup needs to check for SLAVE MONITOR as that is
what is returned by SHOW GRANTS.
Update test to ensure that warnings about missing privileges
do not occur when the backup is successful.
Reviewer: Andrew Hutchings
Thanks Eugene for reporting the issue.
The problem was two fold:
- REPAIR TABLE t1 USE_FRM did not work for transactional
Aria tables (Table was thought to be repaired, which it was not) which
caused issues in later usage of the table.
- When swapping tmp_data file to data file, sort_info files where not
updated. This caused problems if there was several unique keys and
there was a duplicate for the second key.
safety first - tell mariadb client not to execute dangerous
cli commands, they cannot be present in the dump anyway.
wrapping the command in /*!999999 ..... */ guarantees that
if a non-mariadb-cli client loads the dump and sends it to the
server - the server will ignore the command it doesn't understand
on disable_indexes(HA_KEY_SWITCH_NONUNIQ_SAVE) the engine does
not know that the long unique is logically unique, because on the
engine level it is not. And the engine disables it,
Change the disable_indexes/enable_indexes API. Instead of the enum
mode, send a key_map of indexes that should be enabled. This way the
server will decide what is unique, not the engine.
This commit fixes sporadic failures in galera_3nodes_sr.GCF-336
test. The following changes have been made here:
1) A small addition to the test itself which should make
it more deterministic by waiting for non-primary state
before COMMIT;
2) More careful handling of the wsrep_ready variable in
the server code (it should always be protected with mutex).
No additional tests are required.
the test waits for the event to get stuck on MASTER_DELAY,
but on a slow/overloaded slave the event might pass MASTER_DELAY
before the test starts waiting.
Wait for the event to get stuck on the LOCK TABLES (after MASTER_DELAY),
the event cannot avoid that,
Problem:
========
- Currently mariabackup have to reread the pages in case they are
modified by server concurrently. But while reading the undo
tablespace, mariabackup failed to do reread the page in case of
error.
Fix:
===
Mariabackup --backup functionality should have retry logic
while reading the undo tablespaces.
(returns NULL) and for Date/DateTime returns "INTEGER"
Analysis:
When the first character of json is scanned it is number. Based on that
integer is returned.
Fix:
Scan rest of the json before returning the final result to ensure json is
valid in the first place in order to have a valid type.
Problem:
========
- InnoDB wrongly calulates the record size in
btr_node_ptr_max_size() when prefix index of
the column has to be stored externally.
Fix:
====
- InnoDB should add the maximum field size to
record size when the field is a fixed length one.
Regexp_processor_pcre::fix_owner() called Regexp_processor_pcre::compile(),
which could fail on the regex syntax error in the pattern and put
an error into the diagnostics area. However, the callers:
- Item_func_regex::fix_length_and_dec()
- Item_func_regexp_instr::fix_length_and_dec()
still returned "false" in such cases, which made the code
crash later inside Diagnostics_area::set_ok_status().
Fix:
- Change the return type of fix_onwer() from "void" to "bool"
and return "true" whenever an error is put to the DA
(e.g. on the syntax error in the pattern).
- Fixing fix_length_and_dec() of the mentioned Item_func_xxx
classes to return "true" if fix_onwer() returned "true".
Replicated events have time associated with them from originating
node which will be used for commit timestamp. Associated time can
be set in past before event is even applied.
For WSREP replication we don't need to use time information from
event.
Addressed review comments:
Jan Lindström <jan.lindstrom@galeracluster.com>
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Tests using MW-369.inc sometimes hanged after
signaling two debug sync points inside a Galera
library. Replaced Galera library sync point
with server code sync point when possible and
added more wait_conditions to make sure we are
in correct state.
Tests effected: MW-369, MW-402, MDEV-27276, and
mysql-wsrep#332.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
This commit contains a fix for the code that extracts and parses
the CN (common name, domain name) record from certificates using
the openssl utility. This code is also made common to the rsync
and mariabackup scripts. There is also some systematization of
the use of 'printf' and 'echo' builtins/utilities.
Based on logs we might start SST before donor has reached
Primary state. Because this test shutdowns all nodes we
need to make sure when we start nodes that previous nodes
have reached Primary state and joined the cluster.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
The test could fail with a duplicate key error because switching to non-GTID
mode could start at the wrong old-style position. The position could be
wrong when the previous GTID connect was stopped before receiving the fake
GTID list event which gives the old-style position corresponding to the GTID
connected position.
Work-around by injecting an extra event and syncing the slave before
switching to non-GTID mode.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
MDL wait consists of short 1 second waits (this is not configurable)
repeated until lock_wait_timeout is reached. The stage is changed
to Waiting and back every second. To have predictable result in the
test the query should filter all sequences of X, "Waiting for MDL", X,
leaving just X.
Problem:
========
mariabackup --prepare fails to write the pages in encrypted format.
This issue happens only for default encrypted table when
innodb_encrypt_tables variable is enabled.
Fix:
====
backup process should write the value of innodb_encrypt_tables
variable in configuration file. prepare should enable the
variable based on configuration file.
The root cause of the failure is a bug in the Linux network stack:
https://lore.kernel.org/netdev/87sf0ldk41.fsf@urd.knielsen-hq.org/T/#u
If the slave does a connect(2) at the exact same time that kill -9 of the
master process closes the listening socket, the FIN or RST packet is lost in
the kernel, and the slave ends up timing out waiting for the initial
communication from the server. This timeout defaults to
--slave-net-timeout=120, which causes include/master_gtid_wait.inc to time
out first and fail the test.
Work-around this problem by reducing the --slave-net-timeout for this test
case. If this problem turns up in other tests, we can consider reducing the
default value for all tests.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
If replicating an event in ROW format, and InnoDB detects a deadlock
while searching for a row, the row event will error and rollback in
InnoDB and indicate that the binlog cache also needs to be cleared,
i.e. by marking thd->transaction_rollback_request. In the normal
case, this will trigger an error in Rows_log_event::do_apply_event()
and cause a rollback. During the Rows_log_event::do_apply_event()
cleanup of a successful event application, there is a DBUG_ASSERT in
log_event_server.cc::rows_event_stmt_cleanup(), which sets the
expectation that thd->transaction_rollback_request cannot be set
because the general rollback (i.e. not the InnoDB rollback) should
have happened already. However, if the replica is configured to skip
deadlock errors, the rows event logic will clear the error and
continue on, as if no error happened. This results in
thd->transaction_rollback_request being set while in
rows_event_stmt_cleanup(), thereby triggering the assertion.
This patch fixes this in the following ways:
1) The assertion is invalid, and thereby removed.
2) The rollback case is forced in rows_event_stmt_cleanup() if
transaction_rollback_request is set.
Note the differing behavior between transactions which are skipped
due to deadlock errors and other errors. When a transaction is
skipped due to an ignored deadlock error, the entire transaction is
rolled back and skipped (though note MDEV-33930 which allows
statements in the same transaction after the deadlock-inducing one
to commit). When a transaction is skipped due to ignoring a
different error, only the erroring statements are rolled-back and
skipped - the rest of the transaction will execute as normal. The
effect of this can be seen in the test results. The added test case
to rpl_skip_error.test shows that only statements which are ignored
due to non-deadlock errors are ignored in larger transactions. A
diff between rpl_temporary_error2_skip_all.result and
rpl_temporary_error2.result shows that all statements in the errored
transaction are rolled back (diff pasted below):
: diff rpl_temporary_error2.result rpl_temporary_error2_skip_all.result
49c49
< 2 1
---
> 2 NULL
51c51
< 4 1
---
> 4 NULL
53c53
< * There will be two rows in t2 due to the retry.
---
> * There will be one row in t2 because the ignored deadlock does not retry.
57d56
< 1
59c58
< 1
---
> 0
Reviewed By:
============
Andrei Elkin <andrei.elkin@mariadb.com>
On Windows systems, occurrences of ERROR_SHARING_VIOLATION due to
conflicting share modes between processes accessing the same file can
result in CreateFile failures.
mysys' my_open() already incorporates a workaround by implementing
wait/retry logic on Windows.
But this does not help if files are opened using shell redirection like
mysqltest traditionally did it, i.e via
--echo exec "some text" > output_file
In such cases, it is cmd.exe, that opens the output_file, and it
won't do any sharing-violation retries.
This commit addresses the issue by introducing a new built-in command,
'write_line', in mysqltest. This new command serves as a brief alternative
to 'write_file', with a single line output, that also resolves variables
like "exec" would.
Internally, this command will use my_open(), and therefore retry-on-error
logic.
Hopefully this will eliminate the very sporadic "can't open file because
it is used by another process" error on CI.
Issue:
------
The actual order of acquisition of the IBUF pessimistic insert mutex
(SYNC_IBUF_PESS_INSERT_MUTEX) and IBUF header page latch
(SYNC_IBUF_HEADER) w.r.t space latch (SYNC_FSP) differs from the order
defined in sync0types.h. It was not discovered earlier as the path to
ibuf_remove_free_page was not covered by the mtr test. Ideal order and
one defined in sync0types.h is as follows.
SYNC_IBUF_HEADER -> SYNC_IBUF_PESS_INSERT_MUTEX -> SYNC_FSP
In ibuf_remove_free_page, we acquire space latch earlier and we have
the order as follows resulting in the assert with innodb_sync_debug=on.
SYNC_FSP -> SYNC_IBUF_HEADER -> SYNC_IBUF_PESS_INSERT_MUTEX
Fix:
---
We do maintain this order in other places and there doesn't seem to be
any real issue here. To reduce impact in GA versions, we avoid doing
extensive changes in mutex ordering to match the current
SYNC_IBUF_PESS_INSERT_MUTEX order. Instead we relax the ordering check
for IBUF pessimistic insert mutex using SYNC_NO_ORDER_CHECK.
Test was waiting INSERT-clause to make rollback but
wait_condition was too tight. State could be
Freeing items or Rollback. Fixed wait_condition
to expect one of them.
create_partitioning_metadata() should only mark transaction r/w
if it actually did anything (that is, the table is partitioned).
otherwise it's a no-op, called even for temporary tables and
it shouldn't do anything at all
In the case if some unique key fields are nullable, there can be
several records with the same key fields in unique index with at least
one key field equal to NULL, as NULL != NULL.
When transaction is resumed after waiting on the record with at least one
key field equal to NULL, and stored in persistent cursor record is
deleted, persistent cursor can be restored to the record with all key
fields equal to the stored ones, but with at least one field equal to
NULL. And such record is wrongly treated as a record with the same unique
key as stored in persistent cursor record one, what is wrong as
NULL != NULL.
The fix is to check if at least one unique field is NULL in restored
persistent cursor position, and, if so, then don't treat the record as
one with the same unique key as in the stored record key.
dict_index_t::nulls_equal was removed, as it was initially developed for
never existed in MariaDB "intrinsic tables", and there is no code, which
would set it to "true".
Reviewed by Marko Mäkelä.
The test failure in rpl.rpl_domain_id_filter_restart is caused by
MDEV-33887. That is, the test uses master_pos_wait() (called
indirectly by sync_slave_with_master) to try and wait for the
replica to catch up to the master. However, the waited on
transaction is ignored by the configured
CHANGE MASTER TO IGNORE_DOMAIN_IDS=()
As MDEV-33887 reports, due to the IO thread updating the binlog
coordinates and the SQL thread updating the GTID state, if the
replica is stopped in-between these updates, the replica state will
be inconsistent. That is, the test expects that the GTID state will
be updated, so upon restart, the replica will be up-to-date.
However, if the replica is stopped before the SQL thread updates its
GTID state, then upon restart, the replica will fetch the previously
ignored event, which is no longer ignored upon restart, and execute
it. This leads to the sporadic extra row in t2.
This patch changes master_pos_wait() to use master_gtid_wait() to
ensure the replica state is consistent with the master state.
increase the MASTER_CONNECT_RETRY time under valgrind,
otherwise the slave gives up retrying before the master is ready
also, cosmetic cleanup of rpl_semi_sync_master_shutdown.test
The crash at running mysqlbinlog on a SEQUENCE containing binlog file
was caused MDEV-29621 fixes that did not check which of the slave
or binlog applier executes a block introduced there.
The block is meaningful only for the parallel slave applier, so
it's safe to fix this bug with identified the actual applier and
skipping the block when it's the mysqlbinlog one.
In commit d74d95961a (MDEV-18543)
there was an error that would cause the hidden metadata record
to be deleted, and therefore cause the table to appear corrupted
when it is reloaded into the data dictionary cache.
PageConverter::update_records(): Do not delete the metadata record,
but do validate it.
RecIterator::open(): Make the API more similar to 10.6, to simplify
merges.
When the system variables @@debug_dbug was assigned to
some expression, Sys_debug_dbug::do_check() did not properly
convert the value from the expression character set to utf8.
So the value was erroneously re-interpretted as utf8 without
conversion. In case of a tricky expression character set
(e.g. utf16le), this led to unexpected results.
Fix:
Re-using Sys_var_charptr::do_string_check() in Sys_debug_dbug::do_check().
The signal handler thread can use various different runtime
resources when processing a SIGHUP (e.g. master-info information)
due to calling into reload_acl_and_cache(). Currently, the shutdown
process waits for the termination of the signal thread after
performing cleanup. However, this could cause resources actively
used by the signal handler to be freed while reload_acl_and_cache()
is processing.
The specific resource that caused MDEV-30260 is a race condition for
the hostname_cache, such that mysqld would delete it in
clean_up()::hostname_cache_free(), before the signal handler would
use it in reload_acl_and_cache()::hostname_cache_refresh().
Another similar resource is the active_mi/master_info_index. There
was a race between its deletion by the main thread in end_slave(),
and their usage by the Signal Handler as a part of
Master_info_index::flush_all_relay_logs.read(active_mi) in
reload_acl_and_cache().
This patch fixes these race conditions by relocating where server
shutdown waits for the signal handler to die until after
server-level threads have been killed (i.e., as a last step of
close_connections()). With respect to the hostname_cache, active_mi
and master_info_cache, this ensures that they cannot be destroyed
while the signal handler is still active, and potentially using
them.
Additionally:
1) This requires that Events memory is still in place for SIGHUP
handling's mysql_print_status(). So event deinitialization is moved
into clean_up(), but the event scheduler still needs to be stopped
in close_connections() at the same spot.
2) The function kill_server_thread is no longer used, so it is
deleted
3) The timeout to wait for the death of the signal thread was not
consistent with the comment. The comment mentioned up to 10 seconds,
whereas it was actually 0.01s. The code has been fixed to wait up to
10 seconds.
4) A warning has been added if the signal handler thread fails to
exit in time.
5) Added pthread_join() to end of wait_for_signal_thread_to_end()
if it hadn't ended in 10s with a warning. Note this also removes
the pthread_detached attribute from the signal_thread to allow
for the pthread_join().
Reviewed By:
===========
Vladislav Vaintroub <wlad@mariadb.com>
Andrei Elkin <andrei.elkin@mariadb.com>
Problem was too tight condition on ha_commit_trans to not
allow non transactional storage engines participate 2pc
in Galera case. This is required because transaction
using e.g. procedures might read mysql.proc table inside
a trasaction and these tables use at the moment Aria
storage engine that does not support 2pc.
Fixed by allowing read only transactions to storage
engines that do not support two phase commit to participate
2pc transaction. These will be committed later separately.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Commit 6dce6aeceb breaks out of a loop
in ha_partition::info when some partitions aren't opened, in which
case auto_increment_value assertion will fail. This commit patches
that hole.
the value of 200 isn't enough for some tests anymore, this causes
some random threads to become not instrumented and any table operations
there are not reflected in the perfschema. If, say, a DROP TABLE
doesn't change perfschema state, perfschema tables might show
ghost tables that no longer exist in the server
- InnoDB reserves the free extents unnecessarily during blob
page allocation even though btr_page_alloc() can handle
reserving the extent when the existing ran out of pages to be used.
on a busy system it might take time for buffer_page_written_index_leaf
to reach the correct value. Wait for it.
also, tag identical statements to be different in the result file.
Fix in this commit handles foreign key value appending into write set
so that db and table names are converted from the filepath format
to tablename format. This is compatible with key values appended from
elsewhere in the code base
There is a mtr test galera.galera_table_with_hyphen for regression testing
Reviewer: monty@mariadb.com
perfschema aggregation, like SHOW STATUS, is only statistically correct.
It doesn't use atomics for performance reasons and might miss individual
increments, particularly when two connections are disconnecting at the
same time.
To have stable results tests should avoid doing it.
Queries that select concatenated constant strings now have
colname and value that match. For example,
SELECT '123' 'x';
will return a result where the column name and value both
are '123x'.
Review: Daniel Black
- Fix to avoid mysqltest client getting killed abruptly during
mysql_shutdown(). When Galera replication is shutdown, wait for
THDs with `thd->stmt_da()->is_eof()` to disconnect (these are about
to disconnect anyway).
- Extract duplicate code from `wsrep_stop_replication()` and
`wsrep_shutdown_replication()` in a new function.
- No need to use a custom `shutdown_mysqld.inc` in galera
suite. Delete it, so that the one in `mysql-test/include/` is used.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Fix function `remove_fragment()` in wsrep_schema so that no error is
raised if the fragment to be removed is not found in the
wsrep_streaming_log table. This is necessary to handle the case where
streaming transaction in idle state is BF aborted. This may result in
the case where the rollbacker thread successfully removes the
transaction's fragments, followed by the applier's attempt to remove
the same fragments. Causing the node to leave the cluster after
reporting a "Failed to apply write set" error.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Problem:
======
- InnoDB fail to do instant operation while adding the variable
length column. Problem is that InnoDB wrongly assumes that
variable character length can never part of externally stored
page.
Solution:
========
instant_alter_column_possible(): Variable length
character field can be stored as externally stored page.
- Suppress the "Difficult to find free blocks" warning
globally to avoid many different test case failing.
- Demote the error information in validate_first_page() to note.
So first page can recovered from doublewrite buffer and can throw
error in case the page wasn't found in doublewrite buffer.
When rolling back and retrying a transaction in parallel replication, don't
release the domain ownership (for --gtid-ignore-duplicates) as part of the
rollback. Otherwise another master connection could grab the ownership and
double-apply the transaction in parallel with the retry.
Reviewed-by: Brandon Nesterenko <brandon.nesterenko@mariadb.com>
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
The issue here is ha_innobase::get_auto_increment() could cause a
deadlock involving auto-increment lock and rollback the transaction
implicitly. For such cases, storage engines usually call
thd_mark_transaction_to_rollback() to inform SQL engine about it which
in turn takes appropriate actions and close the transaction. In innodb,
we call it while converting Innodb error code to MySQL.
However, since ::innobase_get_autoinc() returns void, we skip the call
for error code conversion and also miss marking the transaction for
rollback for deadlock error. We assert eventually while releasing a
savepoint as the transaction state is not active.
Since convert_error_code_to_mysql() is handling some generic error
handling part, like invoking the callback when needed, we should call
that function in ha_innobase::get_auto_increment() even if we don't
return the resulting mysql error code back.
Problem:
========
During upgrade, InnoDB does write the redo log for adjusting
the tablespace size or tablespace flags even before the log
has upgraded to configured format. This could lead to data
inconsistent if any crash happened during upgrade process.
Fix:
===
srv_start(): Write the tablespace flags adjustment, increased
tablespace size redo log only after redo log upgradation.
log_write_low(), log_reserve_and_write_fast(): Check whether
the redo log is in physical format.
The root cause is the WAL logging of file operation when the actual
operation fails afterwards. It creates a situation with a log entry for
a operation that would always fail. I could simulate both the backup
scenario error and Innodb recovery failure exploiting the weakness.
We are following WAL for file rename operation and once logged the
operation must eventually complete successfully, or it is a major
catastrophe. Right now, we fail for rename and handle it as normal error
and it is the problem.
I created a patch to address RENAME operation to a non existing schema
where the destination schema directory is missing. The patch checks for
the missing schema before logging in an attempt to avoid the failure
after WAL log is written/flushed. I also checked that the schema cannot
be dropped or there cannot be any race with other rename to the same
file. This is protected by the MDL lock in SQL today.
The patch should this be a good improvement over the current situation
and solves the issue at hand.
Problem:
========
- InnoDB reads the length of the variable length field wrongly
while applying the modification log of instant table.
Solution:
========
rec_init_offsets_comp_ordinary(): For the temporary instant
file record, InnoDB should read the length of the variable length
field from the record itself.
Functions extracting non-negative datetime components:
- YEAR(dt), EXTRACT(YEAR FROM dt)
- QUARTER(td), EXTRACT(QUARTER FROM dt)
- MONTH(dt), EXTRACT(MONTH FROM dt)
- WEEK(dt), EXTRACT(WEEK FROM dt)
- HOUR(dt),
- MINUTE(dt),
- SECOND(dt),
- MICROSECOND(dt),
- DAYOFYEAR(dt)
- EXTRACT(YEAR_MONTH FROM dt)
did not set their max_length properly, so in the DECIMAL
context they created a too small DECIMAL column, which
led to the 'Out of range value' error.
The problem is that most of these functions historically
returned the signed INT data type.
There were two simple ways to fix these functions:
1. Add +1 to max_length.
But this would also change their size in the string context
and create too long VARCHAR columns, with +1 excessive size.
2. Preserve max_length, but change the data type from INT to INT UNSIGNED.
But this would break backward compatibility.
Also, using UNSIGNED is generally not desirable,
it's better to stay with signed when possible.
This fix implements another solution, which it makes all these functions
work well in all contexts: int, decimal, string.
Fix details:
- Adding a new special class Type_handler_long_ge0 - the data type
handler for expressions which:
* should look like normal signed INT
* but which known not to return negative values
Expressions handled by Type_handler_long_ge0 store in Item::max_length
only the number of digits, without adding +1 for the sign.
- Fixing Item_extract to use Type_handler_long_ge0
for non-negative datetime components:
YEAR, YEAR_MONTH, QUARTER, MONTH, WEEK
- Adding a new abstract class Item_long_ge0_func, for functions
returning non-negative datetime components.
Item_long_ge0_func uses Type_handler_long_ge0 as the type handler.
The class hierarchy now looks as follows:
Item_long_ge0_func
Item_long_func_date_field
Item_func_to_days
Item_func_dayofmonth
Item_func_dayofyear
Item_func_quarter
Item_func_year
Item_long_func_time_field
Item_func_hour
Item_func_minute
Item_func_second
Item_func_microsecond
- Cleanup: EXTRACT(QUARTER FROM dt) created an excessive VARCHAR column
in string context. Changing its length from 2 to 1.
In an addition to test rpl.rpl_parallel_sbm added by MDEV-32265, the
test uses sleep statements alone to test Seconds_Behind_Master with
delayed replication. On slow running machines, the test can pass the
intended MASTER_DELAY duration and Seconds_Behind_Master can become
0, when the test expects the transaction to still be actively in a
delaying state.
This can be consistently reproduced by adding a sleep statement
before the call to
--let = query_get_value(SHOW SLAVE STATUS, Seconds_Behind_Master, 1)
to sleep past the delay end point.
This patch fixes this by locking the table which the delayed
transaction targets so Second_Behind_Master cannot be updated before
the test reads it for validation.
Aria temporary tables account allocated memory as specific to the current
THD. But this fails for slave threads, where the temporary tables need to be
detached from any specific THD.
Introduce a new flag to mark temporary tables in replication as "global",
and use that inside Aria to not account memory allocations as thread
specific for such tables.
Based on original suggestion by Monty.
Reviewed-by: Monty <monty@mariadb.org>
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
ha_innobase::check_if_supported_inplace_alter(): Require ALGORITHM=COPY
when creating a FULLTEXT INDEX on a versioned table.
row_merge_buf_add(), row_merge_read_clustered_index(): Remove the parameter
or local variable history_fts that had been added in the attempt to fix
MDEV-25004.
Reviewed by: Thirunarayanan Balathandayuthapani
Tested by: Matthias Leich
The innodb_changed_pages plugin only was part of XtraDB, never InnoDB.
It would be useful for incremental backups.
We will remove the code from mariadb-backup for now, because it cannot
serve any useful purpose until the server part has been implemented.
This test was prone to failures for a few reasons, summarized below:
1) MDEV-32168 introduced “only_running_threads=1” to
slave_stop.inc, which allowed the stop logic to bypass an
attempting-to-reconnect IO thread. That is, the IO thread could
realize the master shutdown in `read_event()`, and thereby call into
`try_to_reconnect()`. This would leave the IO thread up when the
test expected it to be stopped. Fixed by explicitly stopping the
IO thread and allowing an error state, as the above case would
lead to errno 2003.
2) On slow systems (or those running profiling tools, e.g. MSAN),
the waiting-for-ack transaction can complete before the system
processes the `SHUTDOWN WAIT FOR ALL SLAVES`. There was shutdown
preparation logic in-between the transaction and shutdown itself,
which contributes to this problem. This patch also moves this
preparation logic before the transaction, so there is less to do
in-between the calls.
3) Changed work-around for MDEV-28141 to use debug_sync instead
of sleep delay, as it was still possible to hit the bug on very
slow systems.
4) Masked MTR variable reset with disable/enable query log
Reviewed By:
============
Kristian Nielsen <knielsen@knielsen-hq.org>
A race condition with the SQL thread, where depending on if it was
killed before or after it had executed the fake/generated IGN_GTIDS
Gtid_list_log_event, may or may not update gtid_slave_pos with the
position of the ignored events. Then, the slave would be restarted
while resetting IGNORE_DOMAIN_IDS to be empty, which would result in
the slave requesting different starting locations, depending on
whether or not gtid_slave_pos was updated. And, because previously
ignored events could now be requested and executed (no longer
ignored), their presence would fail the test.
This patch fixes this in two ways. First, to use GTID positions for
synchronization rather than binlog file positions. Then second, to
synchronize the SQL thread’s gtid_slave_pos with the ignored events
before killing the SQL thread.
To consistently reproduce the test failure, the following patch can
be applied:
diff --git a/sql/log_event_server.cc b/sql/log_event_server.cc
index f51f5b7deec..de62233acff 100644
--- a/sql/log_event_server.cc
+++ b/sql/log_event_server.cc
@@ -3686,6 +3686,12 @@ Gtid_list_log_event::do_apply_event(rpl_group_info *rgi)
void *hton= NULL;
uint32 i;
+ sleep(1);
+ if (rli->sql_driver_thd->killed || rli->abort_slave)
+ {
+ return 0;
+ }
+
Reviewed By:
============
Kristian Nielsen <knielsen@knielsen-hq.org>
MDEV-33308 CHECK TABLE is modifying .frm file even if --read-only
As noted in commit d0ef1aaf61,
MySQL as well as older versions of MariaDB server would during
ALTER TABLE ... IMPORT TABLESPACE write bogus values to the
PAGE_MAX_TRX_ID field to pages of the clustered index, instead of
letting that field remain 0.
In commit 8777458a6e this field
was repurposed for PAGE_ROOT_AUTO_INC in the clustered index root page.
To avoid trouble when upgrading from MySQL or older versions of MariaDB,
we will try to detect and correct bogus values of PAGE_ROOT_AUTO_INC
when opening a table for the first time from the SQL layer.
btr_read_autoinc_with_fallback(): Add the parameters to mysql_version,max
to indicate the TABLE_SHARE::mysql_version of the .frm file and the
maximum value allowed for the type of the AUTO_INCREMENT column.
In case the table was originally created in MySQL or an older version of
MariaDB, read also the maximum value of the AUTO_INCREMENT column from
the table and reset the PAGE_ROOT_AUTO_INC if it is above the limit.
dict_table_t::get_index(const dict_col_t &) const: Find an index that
starts with the specified column.
ha_innobase::check_for_upgrade(): Return HA_ADMIN_FAILED if InnoDB
needs upgrading but is in read-only mode. In this way, the call to
update_frm_version() will be skipped.
row_import_autoinc(): Adjust the AUTO_INCREMENT column at the end of
ALTER TABLE...IMPORT TABLESPACE. This refinement was suggested by
Debarun Banerjee.
The changes outside InnoDB were developed by Michael 'Monty' Widenius:
Added print_check_msg() service for easy reporting of check/repair messages
in ENGINE=Aria and ENGINE=InnoDB.
Fixed that CHECK TABLE do not update the .frm file under --read-only.
Added 'handler_flags' to HA_CHECK_OPT as a way for storage engines to
store state from handler::check_for_upgrade().
Reviewed by: Debarun Banerjee
row_discard_tablespace(): Do not invoke dict_index_t::clear_instant_alter()
because that would corrupt any adaptive hash index entries in the table.
row_import_for_mysql(): Invoke dict_index_t::clear_instant_alter()
after detaching any adaptive hash index entries.
If we fail to open a tablespace while looking for FILE_CHECKPOINT, we
set the corruption flag. Specifically, if encryption key is missing, we
would not be able to open an encrypted tablespace and the flag could be
set. We miss checking for this flag and report "Missing FILE_CHECKPOINT"
Address review comment to improve the test. Flush pages before starting
no-checkpoint block. It should improve the number of cases where the
test is skipped because some intermediate checkpoint is triggered.
mariadb-backup with --prepare option could result in empty redo log
file. When --prepare is followed by --prepare --export, we exit early
in srv_start function without opening the ibdata1 tablespace. Later
while trying to read rollback segment header page, we hit the debug
assert which claims that the system space should already have been
opened.
There are two assert cases here.
Issue-1: System tablespace object is not there in fil space hash i.e.
srv_sys_space.open_or_create() is not called.
Issue-2: The system tablespace data file ibdata1 is not opened i.e.
fil_system.sys_space->open() is not called.
Fix: For empty redo log and restore operation, open system tablespace
before returning.
THE FIX MUST NOT BE MERGED TO 10.6+, BECAUSE 10.6+ IS NOT AFFECTED!
The test is waiting for delete-marked record purging. But this does not
happen under the following conditions:
1. "START TRANSACTION WITH CONSISTENT SNAPSHOT" - is active, has not
been rolled back yet
2. "DELETE FROM t WHERE b = 20 # trx_1" - is committed
3. "INSERT INTO t VALUES(10, 20) # trx_2" - hanging on
"ib_after_row_insert" sync point, waiting for "first_ins_cont" signal
4. "DELETE FROM t WHERE b = 20 # trx_3" - blocked on delete-marked by
trx_1 record, waiting for trx_2
5. connection "default" is waiting on
'now WAIT_FOR row_purge_del_mark_finished'
purge_coordinator_callback_low() sets
purge_state.m_history_length= srv_do_purge(&n_total_purged);
even if nothing was purged, like in our case. Nothing was purged because
transaction with consistent snapshot was still alive during purging
procedure.
Then purge_coordinator_timer_callback() does not wake purge thread if
the following condition is true:
purge_state.m_history_length == trx_sys.rseg_history_len
The above condition is true for our case, because we are waiting for
delete-marked record purging, and trx_sys.rseg_history_len does not
grow.
Only 10.5 is affected, because there is no such condition in 10.6, i.e.
purge thread is woken up even if history size was not changed during
purge coordinator thread suspending.
The easiest way to fix it is just to remove the test from 10.5.
During import, if cfg file is not specified, we don't update the autoinc
field in innodb dictionary object dict_table_t. The next insert tries to
insert from the starting position of auto increment and fails.
It can be observed that the issue is resolved once server is restarted
as the persistent value is read correctly from PAGE_ROOT_AUTO_INC from
index root page. The patch fixes the issue by reading the the auto
increment value directly from PAGE_ROOT_AUTO_INC during import if cfg
file is not specified.
Test Fix:
1. import_bugs.test: Embedded mode warning has absolute path. Regular
expression replacement in test.
2. full_crc32_import.test: Table level auto increment mismatch after
import. It was using the auto increment data from the table prior to
discard and import which is not right. This value has cached auto
increment value higher than the actual inserted value and value stored
in PAGE_ROOT_AUTO_INC. Updated the result file and added validation for
checking the maximum value of auto increment column.
This bug led to wrong result sets returned by the second execution of
prepared statements from selects using mergeable derived tables pushed
into external engine. Such derived tables are always materialized. The
decision that they have to be materialized is taken late in the function
mysql_derived_optimized(). For regular derived tables this decision is
usually taken at the prepare phase. However in some cases for some derived
tables this decision is made in mysql_derived_optimized() too. It can be
seen in the code of mysql_derived_fill() that for such a derived table it's
critical to change its translation table to tune it to the fields of the
temporary table used for materialization of the derived table and this
must be done after each refill of the derived table. The same actions are
needed for derived tables pushed into external engines.
Approved by Oleksandr Byelkin <sanja@mariadb.com>
According to the standard, the autoincrement column (i.e. *identity
column*) should be advanced each insert implicitly made by
UPDATE/DELETE ... FOR PORTION.
This is very unconvenient use in several notable cases. Concider a
WITHOUT OVERLAPS key with an autoinc column:
id int auto_increment, unique(id, p without overlaps)
An update or delete with FOR PORTION creates a sense that id will remain
unchanged in such case.
The standard's IDENTITY reminds MariaDB's AUTO_INCREMENT, however
the generation rules differ in many ways. For example, there's also a
notion autoincrement index, which is bound to the autoincrement field.
We will define our own generation rule for the PORTION OF operations
involving AUTO_INCREMENT:
* If an autoincrement index contains WITHOUT OVERLAPS specification, then
a new value should not be generated, otherwise it should.
Apart from WITHOUT OVERLAPS there is also another notable case, referred
by the reporter - a unique key that has an autoincrement column and a field
from the period specification:
id int auto_increment, unique(id, s), period for p(s, e)
for this case, no exception is made, and the autoincrementing rules will be
proceeded accordung to the standard (i.e. the value will be advanced on
implicit inserts).
Reason:
======
undo_space_dblwr test case fails if the first page of undo
tablespace is not flushed before restart the server. While
restarting the server, InnoDB fails to detect the first
page of undo tablespace from doublewrite buffer.
Fix:
===
Use "ib_log_checkpoint_avoid_hard" debug sync point
to avoid checkpoint and make sure to flush the
dirtied page before killing the server.
innodb_make_page_dirty(): Fails to set
srv_fil_make_page_dirty_debug variable.
rpl.rpl_seconds_behind_master_spike uses the DEBUG_SYNC mechanism to
count how many format descriptor events (FDEs) have been executed,
to attempt to pause on a specific relay log FDE after executing
transactions. However, depending on when the IO thread is stopped,
it can send an extra FDE before sending the transactions, forcing
the test to pause before executing any transactions, resulting in a
table not existing, that is attempted to be read for COUNT.
This patch fixes this by no longer counting FDEs, but rather by
programmatically waiting until the SQL thread has executed the
transaction and then automatically activating the DEBUG_SYNC point
to trigger at the next relay log FDE.
Add wait_condition between debug sync SIGNAL points and other
expected state conditions and refactor actual sync point for
easier to use in test case.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Correct used configuration and force server restarts before test
case. Add wait condition instead of sleep to verify that
all expected nodes are back to cluster.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Add more inserts before wsrep_slave_threads is set to 1 and
add wait_condition to wait all of them are replicated before
wait_condition about number of wsrep_slave_threads.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
rpl.rpl_seconds_behind_master_spike uses the DEBUG_SYNC mechanism to
count how many format descriptor events (FDEs) have been executed,
to attempt to pause on a specific relay log FDE after executing
transactions. However, depending on when the IO thread is stopped,
it can send an extra FDE before sending the transactions, forcing
the test to pause before executing any transactions, resulting in a
table not existing, that is attempted to be read for COUNT.
This patch fixes this by no longer counting FDEs, but rather by
programmatically waiting until the SQL thread has executed the
transaction and then automatically activating the DEBUG_SYNC point
to trigger at the next relay log FDE.
Problem was that if wsrep_load_data_splitting was used
streaming replication (SR) parameters were set
for MyISAM table. Galera does not currently support SR for
MyISAM.
Fix is to ignore wsrep_load_data_splitting setting (with
warning) if table is not InnoDB table.
This is 10.4-10.5 case of fix.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Problem is that Galera starts TOI (total order isolation) i.e.
it sends query to all nodes. Later it is discovered that
used engine or other feature is not supported by Galera.
Because TOI is executed parallelly in all nodes appliers
could execute given TOI and ignore the error and
start inconsistency voting causing node to leave from
cluster or we might have a crash as reported.
For example SEQUENCE engine does not support GEOMETRY data
type causing either inconsistency between nodes (because
some errors are ignored on applier) or crash.
Fixed my adding new function wsrep_check_support to check
can Galera support provided CREATE TABLE/SEQUENCE before TOI is
started and if not clear error message is provided to
the user.
Currently, not supported cases:
* CREATE TABLE ... AS SELECT when streaming replication is used
* CREATE TABLE ... WITH SYSTEM VERSIONING AS SELECT
* CREATE TABLE ... ENGINE=SEQUENCE
* CREATE SEQUENCE ... ENGINE!=InnoDB
* ALTER TABLE t ... ENGINE!=InnoDB where table t is SEQUENCE
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Problem was that REPLACE was using consistency check that started
TOI and we tried to rollback it.
Do not use wsrep_before_rollback and wsrep_after_rollback if
we are runing consistency check because no writeset keys are
in that case added. Do not allow consistency check usage
if table storage for target table is not InnoDB, instead
give warning. REPLACE|SELECT INTO ... SELECT will use
now TOI if table storage for target table is not InnoDB
to maintain consistency between galera nodes.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
A debug_sync signal could remain for the SQL thread that should have begun
a wait_for upon seeing a GTID event, but would instead see the old signal
and continue on without waiting. This broke an "idle" condition in
SHOW SLAVE STATUS
which should have automatically negated Seconds_Behind_Master. Instead,
because the SQL thread had already processed the GTID event, it set
sql_thread_caught_up to false, and thereby calculated the value of
Seconds_behind_master, when the test expected 0.
This patch fixes this by resetting the debug_sync state before creating a
new transaction which sends a GTID event to the replica
Turning REGEXP_REPLACE into two schema-qualified functions:
- mariadb_schema.regexp_replace()
- oracle_schema.regexp_replace()
Fixing oracle_schema.regexp_replace(subj,pattern,replacement) to treat
NULL in "replacement" as an empty string.
Adding new classes implementing oracle_schema.regexp_replace():
- Item_func_regexp_replace_oracle
- Create_func_regexp_replace_oracle
Adding helper methods:
- String *Item::val_str_null_to_empty(String *to)
- String *Item::val_str_null_to_empty(String *to, bool null_to_empty)
and reusing these methods in both Item_func_replace and
Item_func_regexp_replace.
While a replica may be reading events from the
primary, the primary is killed. Left to its own
devices, the IO thread may or may not stop in
error, depending on what it is doing when its
connection to the primary is killed (e.g. a
failed read results in an error, whereas if the
IO thread is idly waiting for events when the
connection dies, it will enter into a reconnect
loop and reconnect). MDEV-32168 changed the test
to always wait for the reconnect, thus breaking
the error case, as the IO thread would be stopped
at a time of expecting it to be running.
The fix is to manually stop/start the IO thread
to ensure it is in a consistent state.
Note that rpl_domain_id_filter_master_crash.test
will need additional changes after fixing MDEV-33268
Reviewed By:
============
Kristian Nielsen <knielsen@knielsen-hq.org>
recv_dblwr_t::find_first_page(): Free the allocated memory
to read the first 3 pages from tablespace.
innodb.doublewrite: Added sleep to ensure page cleaner thread
wake up from my_cond_wait
- InnoDB fails to find the space id from the page0 of
the tablespace. In that case, InnoDB can use
doublewrite buffer to recover the page0 and write
into the file.
- buf_dblwr_t::init_or_load_pages(): Loads only the pages
which are valid.(page lsn >= checkpoint). To do that,
InnoDB has to open the redo log before system
tablespace, read the latest checkpoint information.
recv_dblwr_t::find_first_page():
1) Iterate the doublewrite buffer pages and find the 0th page
2) Read the tablespace flags, space id from the 0th page.
3) Read the 1st, 2nd and 3rd page from tablespace file and
compare the space id with the space id which is stored
in doublewrite buffer.
4) If it matches then we can write into the file.
5) Return space which matches the pages from the file.
SysTablespace::read_lsn_and_check_flags(): Remove the
retry logic for validating the first page. After
restoring the first page from doublewrite buffer,
assign tablespace flags by reading the first page.
recv_recovery_read_max_checkpoint(): Reads the maximum
checkpoint information from log file
recv_recovery_from_checkpoint_start(): Avoid reading
the checkpoint header information from log file
Datafile::validate_first_page(): Throw error in case
of first page validation fails.
PageBulk::init(): Unnecessary reserves the extent before
allocating a page for bulk insert. btr_page_alloc()
capable of handing the extending of tablespace.
The problem is the test is skipped after sourcing include/master-slave.inc.
This leaves the slave threads running after the test is skipped, causing a
following test to fail during rpl setup.
Also rename have_normal_bzip.inc to the more appropriate _zlib.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
The bitmap is temporarily flipped to ~0 for the sake of checking all
fields. It needs to be restored because it will be reused in second
and subsequent ps execution.
buf_flush_page_cleaner(): A continue or break inside DBUG_EXECUTE_IF
actually is a no-op. Use an explicit call to _db_keyword_() to
actually avoid advancing the checkpoint.
buf_flush_list_now_set(): Invoke os_aio_wait_until_no_pending_writes()
to ensure that the page write to the system tablespace is completed.
srv_start(): Move a read only mode startup tweak from
innodb_init_params() to the correct location. Also if
innodb_force_recovery=6 we will disable the doublewrite buffer,
because InnoDB must run in read-only mode to prevent further corruption.
This change only affects debug checks. Whenever srv_read_only_mode holds,
the buf_pool.flush_list will be empty, that is, there will be no writes
of persistent InnoDB data pages.
Reviewed by: Thirunarayanan Balathandayuthapani
- innodb.doublewrite_debug should avoid the checkpoint
before killing the server. So used debug sync and
innodb_flush_sync to avoid the checkpoint completely.
Test case allowed to skip on MSAN builder due to extra
checkpoint.
MDEV-31003 has introduced second execution for SELECTs that execute
under ps-protocol. The following tests in galera suites do not support
this mode of execution, disable it:
galera.MDEV-27862
galera.galera_log_output_csv
galera.galera_query_cache
galera.galera_query_cache_sync_wait
galera_3nodes_sr.GCF-336
galera_3nodes_sr.galera_sr_isolate_master
galera_sr.galera_sr_large_fragment
galera_sr.galera_sr_many_fragments
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Attempting to set a SAVEPOINT when one of the involved storage engines
does not support savepoints, raises an error, and results in statement
rollback. If Galera is enabled with binlog emulation, the above
scenario was not handled correctly, and resulted in cluster wide
inconsistency.
The problem was in wsrep_register_binlog_handler(), which is called
towards the beginning of SAVEPOINT execution. This function is
supposed to mark the beginning of statement position in trx cache
through `set_prev_position()`. However, it did so only on condition
that `get_prev_position()` returns `MY_OFF_T_UNDEF`.
This before statement position is typically reset to undefined at the
end of statement in `binlog_commit()` / `binlog_rollback()`.
However that's not the case with Galera and binlog emulation, for
which binlog commit / rollback hooks are not called due to the
optimization that avoids internal 2PC (MDEV-16509).
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
This commit fixes GTID inconsistency which was injected by mariabackup SST.
Donor node now writes new info file: donor_galera_info, which is streamed
along the mariabackup donation to the joiner node. The donor_galera_info
file contains both GTID and gtid domain_id, and joiner will use these to
initialize the GTID state.
Commit has new mtr test case: galera_3nodes.galera_gtid_consistency, which
exercises potentially harmful mariabackup SST scenarios. The test has also
scenario with IST joining.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Modified galera_sr.mysql-wsrep-features#165 test to be deterministic:
Added one wait condition to catch execution state after --send command.
Changed another wait condition to better match the execution state of the test thread.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
AES block cipher mode CTR is available at the moment
only from OpenSSL 1.0.1. Do not run this testcase
using CTR combination if it is not available.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Could not reproduce and bug report is incomplete i.e. there
is no error logs to analyze and 10.4 branch commit where
failure was seen is not mentioned. Enable test to get more information.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
This patch fixes cases where a transaction caused empty writeset to be
replicated. This could happen in the case where a transaction executes
a statement that initially manages to modify some data and therefore
appended keys some for certification. The statement is however rolled
back at some later stage due to some error (for example, a duplicate
key error). After statement rollback the transaction is still alive,
has no other changes. When committing such transaction, an empty
writeset was replicated through Galera.
The fix is to avoid calling into commit hook only when transaction
has appended one or keys for certification *and* has some data in
binlog cache to replicate. Otherwise, the commit is considered empty,
and goes through usual empty commit path.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Item::val_str() sets the Item::null_value flag, so call it before checking
the flag, not after.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
opt_kill_long_query_type being an enum could be 0 corresponding
to ALL. When ALL is specified, the CONNECTION ADMIN is still
required.
Also check REPLICA MONITOR privilege and make the tests
find the results by recording stderr.
Noticed thanks to bug report by Tim van Dijen.
Fixes: 79b58f1ca8
row_ins_clust_index_entry_low(): Invoke btr_set_instant() in the same
mini-transaction that has successfully inserted the metadata record.
In this way, if inserting the metadata record fails before any
undo log record was written for it, the index root page will remain
consistent.
innobase_instant_try(): Remove the btr_set_instant() call.
Reviewed by: Thirunarayanan Balathandayuthapani
Tested by: Matthias Leich
Like all IF NOT EXISTS syntax, a Note should be generated.
The original commit of Seqeuences cleared the IF NOT EXISTS part
in the sql/sql_yacc.yy with lex->create_info.init(). Without this
bit set there was no way it could do anything other than error.
To remedy this removal, the sql_yacc.yy components have been
minimised as they where all set at the beginning of the ALTER.
This way the opt_if_not_exists correctly set the IF_EXISTS flag.
In MDEV-13005 (bb4dd70e7c) the error code changed, requiring
ER_UNKNOWN_SEQUENCES to be handled in the function
No_such_table_error_handler::handle_condition.
ha_innobase::check_if_supported_inplace_alter(): On ALTER_OPTIONS,
if innodb_file_per_table=1 and the table resides in the system tablespace,
require that the table be rebuilt (and moved to an .ibd file).
Reviewed by: Thirunarayanan Balathandayuthapani
Tested by: Matthias Leich
This test was using a sleep of 1 second in an attempt to ensure that the
timestamp that is part of an InnoDB status string would increase.
This not only prolongs the test execution time by 1+1 seconds, but it
also is inaccurate. It is possible that the actual sleep duration is
less than a second.
Let us wait for the creation of the file ib_buffer_pool and then wait
for the buffer pool dump completion. In that way, the test can complete
in a dozen or two milliseconds (1% of the previous duration) and work
more reliably.
Add OPTION_GTID_BEGIN to applying side thread. This is needed to avoid
intermediate commits when CREATE TABLE AS SELECT is applied, causing
one more GTID to be consumed with respect to executing node.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
Return an error if user attempts to use SEQUENCEs in combination with
streaming replication in a Galera cluster. This is currently not
supported.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
AKA rpl.rpl_parallel, binlog_encryption.rpl_parallel fails in
buildbot with timeout in include
A replication parallel worker thread can deadlock with another
connection running SHOW SLAVE STATUS. That is, if the replication
worker thread is in do_gco_wait() and is killed, it will already
hold the LOCK_parallel_entry, and during error reporting, try to
grab the err_lock. SHOW SLAVE STATUS, however, grabs these locks in
reverse order. It will initially grab the err_lock, and then try to
grab LOCK_parallel_entry. This leads to a deadlock when both threads
have grabbed their first lock without the second.
This patch implements the MDEV-31894 proposed fix to optimize the
workers_idle() check to compare the last in-use relay log’s
queued_count==dequeued_count for idleness. This removes the need for
workers_idle() to grab LOCK_parallel_entry, as these values are
atomically updated.
Huge thanks to Kristian Nielsen for diagnosing the problem!
Reviewed By:
============
Kristian Nielsen <knielsen@knielsen-hq.org>
Andrei Elkin <andrei.elkin@mariadb.com>
Add a test case that demonstrates a working setup as described in MDEV-26632.
This requires --gtid-ignore-duplicates=1 and --gtid-strict-mode=0.
In A->B->C, B filters some (but not all) events from A. C is promoted to
create A->C->B, and the current GTID position in B contains a GTID from A that
is not present in C (due to filtering). Demonstrate that B can still connect
with GTID to C, starting at the "hole" in the binlog stream on C originating
from A.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
Omit `state` when selecting processlist to verify which threads are running.
The state changes as threads are running (enter_state()), and this causes
sporadic test failures.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
Make sure the old binlog dump thread is not still running when manipulating
binlog files; otherwise there is a small chance it will see an invalid
partial file and report an I/O error.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
Let us remove a test that frequently fails with a result difference.
This test had been added in fc279d7ea2
to cover a bug in thd_destructor_proxy(), which was replaced with
simpler logic in 5e62b6a5e0 (MDEV-16264).
The test was populating unnecessarily large tables and
restarting the server several times for no real reason.
Let us hope that a smaller version of the test will produce more
stable results. Occasionally, some unencrypted contents in the table t2
was revealed in the old test.
The data type of the column INFORMATION_SCHEMA.GLOBAL_STATUS.VARIABLE_VALUE
is a character string. Therefore, if we want to compare some values as
integers, we must explicitly cast them to integer type, to avoid an
awkward comparison where '10'<'9' because the first digit is smaller.
- Split the doublewrite test into two test (doublewrite,
doublewrite_debug) to reduce the execution time of the test
- Removed big_test tag for the newly added test case
- Made doublewrite test as non-debug test
- Added search pattern to make sure that InnoDB uses doublewrite buffer
- Replaced all kill_mysqld.inc with shutdown_mysqld.inc and
zero shutdown timeout
- Removed the case where fsp_flags got corrupted. Because from commit
3da5d047b8 (MDEV-31851) onwards,
doublewrite buffer removes the conversion the fsp flags from buggy
10.1 format
Thanks to Marko Mäkelä for providing the non-debug test
This commit fixes a bug where IST could be rejected in favor of SST
when ssl-mode=VERIFY_CA and when mariabackup is used. It also contains
a test and small code simplifications that will make it easier to find
bugs in the future.
Problem:
========
- InnoDB should have two keys on the same column for the self
referencing foreign key relation.
Solution:
=========
- Allow self referential foreign key relation to work with one
key.
The binlog.flashback test tries to run using the stmt and mix
binlog_format combinations (because it includes have_log_bin.inc),
yet are meaningless tests because the server starts with the
--flashback option, forcing binlog_format=row.
This patch optimizes test time by removing the stmt and mix format
combinations from running.
Reviewed By:
============
Andrei Elkin <andrei.elkin@mariadb.com>
InnoDB could return off-by-1 estimates for the involved tables.
This would cause off-by-many difference in join output cardinality
for the top-level SELECT, and so different query plan for the subquery.
The fix: Introduce mysql-test/include/innodb_stable_estimates.{inc,opt}
which disables InnoDB's background statistics collection, and use it.
This test happens to fail if it runs after test
galera_inject_bf_long_wait.
And the reason is that galera_bf_lock_wait greps for message
"BF lock wait long" in the error log, and expects that grep matches
no lines. Whereas galera_inject_bf_long_wait intentionally causes the
message to appear in the log. The fix consists in using
assert_grep.inc with option assert_only_after, such that
galera_bf_lock_wait is limited to grep only those lines that appeared
in the log after it started to execute.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
row_upd_clust_rec_by_insert(): If we are resuming from a lock wait,
reset the 'disowned' flag of the BLOB pointers in 'entry' that we
copied from 'rec' on which we had invoked btr_cur_disown_inherited_fields()
before the lock wait started. In this way, the inserted record with
the updated PRIMARY KEY value will have the BLOB ownership associated
with itself, like it is supposed to be.
Note: If the lock wait had been aborted, then rollback would have
invoked btr_cur_unmark_extern_fields() and no corruption would be possible.
Reviewed by: Vladislav Lesin
Tested by: Matthias Leich
trx_t::commit_in_memory(): Empty the detailed_error string, so that
FOREIGN KEY error messages from an earlier transaction will not be
wrongly reused in ha_innobase::get_error_message().
Reviewed by: Thirunarayanan Balathandayuthapani
Fix some random test failures following MDEV-32168 push.
Don't blindly set $rpl_only_running_threads in many places. Instead explicit
stop only the IO or SQL thread, as appropriate. Setting it interfered with
rpl_end.inc in some cases. Rather than clearing it afterwards, better to
not set it at all when it is not needed, removing ambiguity in the test
about the state of the replication threads.
Don't fail the test if include/stop_slave_io.inc finds an error in the IO
thread after stop. Such errors can be simply because slave stop happened in
the middle of the IO thread's initial communication with the master.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
- Record unrecorded tests from `rpl` suite to `engines/funcs` suite
(done by d8e448ba1b):
1) Record test `rpl_row_until` from commit d95fa7e332
2) Record test `rpl_slave_status` from commit a7d186a17d
- Stop only running threads for `engines/funcs.rpl_server_id1.test` that
is not the same as `rpl.rpl_server_id1.test`
- Reviewer: <knielsen@knielsen-hq.org>
<andrei.elkin@mariadb.com>
mysql_prepare_alter_table(): Alter table should check whether
foreign key exists when it expected to exists and
report the error in early stage
dict_foreign_parse_drop_constraints(): Don't throw error if the
foreign key constraints doesn't exist when if exists is given
in the statement.
Let us make the test compatible with ./mtr --repeat
and convert variable_value to integer, so that comparisons like
16>9 will work as intended, instead of being compared as '16'<'9'.
- Add selected tables as shared keys for CTAS certification
- Set proper security context on the replayer thread
- Disallow CTAS command retry
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
