mariadb/sql/sql_plugin_services.ic
Teemu Ollakka 1ef50a34ec 10.4 wsrep group commit fixes (#1224)
* MDEV-16509 Improve wsrep commit performance with binlog disabled

Release commit order critical section early after trx_commit_low() if
binlog is not transaction coordinator. In order to avoid two phase commit,
binlog_hton is not registered for THD during IO_CACHE population.

Implemented a test which verifies that the transactions release
commit order early.

This optimization will change behavior during recovery as the commit
is not two phase when binlog is off. Fixed and recorded wsrep-recover-v25
and wsrep-recover to match the behavior.

* MDEV-18730 Ordering for wsrep binlog group commit

Previously out of order execution was allowed for wsrep commits.
Established proper ordering by populating wait_for_commit
for every wsrep THD and making group commit leader to wait for
prior commits before proceeding to trx_group_commit_leader().

* MDEV-18730 Added a test case to verify correct commit ordering

* MDEV-16509, MDEV-18730 Review fixes

Use WSREP_EMULATE_BINLOG() macro to decide if the binlog_hton
should be registered. Whitespace/syntax fixes and cleanups.

* MDEV-16509 Require binlog for galera_var_innodb_disallow_writes test

If the commit to InnoDB is done in one phase, the native InnoDB behavior
is that the transaction is committed in memory before it is persisted to
disk. This means that the innodb_disallow_writes=ON may not prevent
transaction to become visible to other readers before commit is completely
over. On the other hand, if the commit is two phase (as it is with binlog),
the transaction will be blocked in prepare phase.

Fixed the test to use binlog, which enforces two phase commit, which
in turn makes commit to block before the changes become visible to
other connections. This guarantees that the test produces expected
result.
2019-03-15 07:09:13 +02:00

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/* Copyright (c) 2009, 2010, Oracle and/or its affiliates.
Copyright (c) 2012, 2014, Monty Program Ab
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/* support for Services */
#include <service_versions.h>
#include <mysql/service_wsrep.h>
struct st_service_ref {
const char *name;
uint version;
void *service;
};
static struct my_snprintf_service_st my_snprintf_handler = {
my_snprintf,
my_vsnprintf
};
static struct thd_alloc_service_st thd_alloc_handler= {
thd_alloc,
thd_calloc,
thd_strdup,
thd_strmake,
thd_memdup,
thd_make_lex_string
};
static struct thd_wait_service_st thd_wait_handler= {
thd_wait_begin,
thd_wait_end
};
static struct progress_report_service_st progress_report_handler= {
thd_progress_init,
thd_progress_report,
thd_progress_next_stage,
thd_progress_end,
set_thd_proc_info
};
static struct kill_statement_service_st thd_kill_statement_handler= {
thd_kill_level
};
static struct thd_timezone_service_st thd_timezone_handler= {
thd_TIME_to_gmt_sec,
thd_gmt_sec_to_TIME
};
static struct my_sha2_service_st my_sha2_handler = {
my_sha224,
my_sha224_multi,
my_sha224_context_size,
my_sha224_init,
my_sha224_input,
my_sha224_result,
my_sha256,
my_sha256_multi,
my_sha256_context_size,
my_sha256_init,
my_sha256_input,
my_sha256_result,
my_sha384,
my_sha384_multi,
my_sha384_context_size,
my_sha384_init,
my_sha384_input,
my_sha384_result,
my_sha512,
my_sha512_multi,
my_sha512_context_size,
my_sha512_init,
my_sha512_input,
my_sha512_result,
};
static struct my_sha1_service_st my_sha1_handler = {
my_sha1,
my_sha1_multi,
my_sha1_context_size,
my_sha1_init,
my_sha1_input,
my_sha1_result
};
static struct my_md5_service_st my_md5_handler = {
my_md5,
my_md5_multi,
my_md5_context_size,
my_md5_init,
my_md5_input,
my_md5_result
};
static struct logger_service_st logger_service_handler= {
logger_init_mutexes,
logger_open,
logger_close,
logger_vprintf,
logger_printf,
logger_write,
logger_rotate
};
static struct thd_autoinc_service_st thd_autoinc_handler= {
thd_get_autoinc
};
static struct thd_rnd_service_st thd_rnd_handler= {
thd_rnd,
thd_create_random_password
};
static struct base64_service_st base64_handler= {
my_base64_needed_encoded_length,
my_base64_encode_max_arg_length,
my_base64_needed_decoded_length,
my_base64_decode_max_arg_length,
my_base64_encode,
my_base64_decode
};
static struct thd_error_context_service_st thd_error_context_handler= {
thd_get_error_message,
thd_get_error_number,
thd_get_error_row,
thd_inc_error_row,
thd_get_error_context_description
};
static struct wsrep_service_st wsrep_handler = {
get_wsrep_recovery,
wsrep_consistency_check,
wsrep_is_wsrep_xid,
wsrep_xid_seqno,
wsrep_xid_uuid,
wsrep_on,
wsrep_prepare_key_for_innodb,
wsrep_thd_LOCK,
wsrep_thd_UNLOCK,
wsrep_thd_query,
wsrep_thd_retry_counter,
wsrep_thd_ignore_table,
wsrep_thd_trx_seqno,
wsrep_thd_auto_increment_variables,
wsrep_thd_is_aborting,
wsrep_set_data_home_dir,
wsrep_thd_is_BF,
wsrep_thd_is_local,
wsrep_thd_self_abort,
wsrep_thd_append_key,
wsrep_thd_client_state_str,
wsrep_thd_client_mode_str,
wsrep_thd_transaction_state_str,
wsrep_thd_transaction_id,
wsrep_thd_bf_abort,
wsrep_thd_order_before,
wsrep_handle_SR_rollback,
wsrep_thd_skip_locking,
wsrep_get_sr_table_name,
wsrep_get_debug,
wsrep_commit_ordered
};
static struct thd_specifics_service_st thd_specifics_handler=
{
thd_key_create,
thd_key_delete,
thd_getspecific,
thd_setspecific
};
static struct encryption_scheme_service_st encryption_scheme_handler=
{
encryption_scheme_encrypt,
encryption_scheme_decrypt
};
static struct my_crypt_service_st crypt_handler=
{
my_aes_crypt_init,
my_aes_crypt_update,
my_aes_crypt_finish,
my_aes_crypt,
my_aes_get_size,
my_aes_ctx_size,
my_random_bytes
};
static struct my_print_error_service_st my_print_error_handler=
{
my_error,
my_printf_error,
my_printv_error
};
struct json_service_st json_handler=
{
json_type,
json_get_array_item,
json_get_object_key,
json_get_object_nkey,
json_escape_string,
json_unescape_json
};
static struct st_service_ref list_of_services[]=
{
{ "base64_service", VERSION_base64, &base64_handler },
{ "debug_sync_service", VERSION_debug_sync, 0 }, // updated in plugin_init()
{ "encryption_scheme_service", VERSION_encryption_scheme, &encryption_scheme_handler },
{ "encryption_service", VERSION_encryption, &encryption_handler },
{ "logger_service", VERSION_logger, &logger_service_handler },
{ "my_crypt_service", VERSION_my_crypt, &crypt_handler},
{ "my_md5_service", VERSION_my_md5, &my_md5_handler},
{ "my_print_error_service", VERSION_my_print_error, &my_print_error_handler},
{ "my_sha1_service", VERSION_my_sha1, &my_sha1_handler},
{ "my_sha2_service", VERSION_my_sha2, &my_sha2_handler},
{ "my_snprintf_service", VERSION_my_snprintf, &my_snprintf_handler },
{ "progress_report_service", VERSION_progress_report, &progress_report_handler },
{ "thd_alloc_service", VERSION_thd_alloc, &thd_alloc_handler },
{ "thd_autoinc_service", VERSION_thd_autoinc, &thd_autoinc_handler },
{ "thd_error_context_service", VERSION_thd_error_context, &thd_error_context_handler },
{ "thd_kill_statement_service", VERSION_kill_statement, &thd_kill_statement_handler },
{ "thd_rnd_service", VERSION_thd_rnd, &thd_rnd_handler },
{ "thd_specifics_service", VERSION_thd_specifics, &thd_specifics_handler },
{ "thd_timezone_service", VERSION_thd_timezone, &thd_timezone_handler },
{ "thd_wait_service", VERSION_thd_wait, &thd_wait_handler },
{ "wsrep_service", VERSION_wsrep, &wsrep_handler },
{ "json_service", VERSION_json, &json_handler }
};