Commit 1c65ab26 authored by Marko Mäkelä's avatar Marko Mäkelä

Merge 10.4 into 10.5

parents a9550c47 bd64c2e8
...@@ -402,6 +402,20 @@ Opened_table_definitions 5 ...@@ -402,6 +402,20 @@ Opened_table_definitions 5
Opened_tables 5 Opened_tables 5
drop function foo; drop function foo;
drop table t2, t1; drop table t2, t1;
CREATE TABLE t1 (pk INT, a INT, PRIMARY KEY (pk)) ENGINE=InnoDB;
XA START 'xid';
INSERT INTO t1 VALUES (1,2);
CREATE TABLE x AS SELECT * FROM t1;
ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the ACTIVE state
connect con1,localhost,root,,test;
SET foreign_key_checks= OFF, innodb_lock_wait_timeout= 1;
ALTER TABLE t1 ADD FOREIGN KEY f (a) REFERENCES t1 (pk), LOCK=EXCLUSIVE;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
disconnect con1;
connection default;
XA END 'xid';
XA ROLLBACK 'xid';
DROP TABLE t1;
# Start of 10.2 tests # Start of 10.2 tests
# #
# MDEV-13246 Stale rows despite ON DELETE CASCADE constraint # MDEV-13246 Stale rows despite ON DELETE CASCADE constraint
......
...@@ -407,6 +407,20 @@ show status like '%opened_tab%'; ...@@ -407,6 +407,20 @@ show status like '%opened_tab%';
drop function foo; drop function foo;
drop table t2, t1; drop table t2, t1;
CREATE TABLE t1 (pk INT, a INT, PRIMARY KEY (pk)) ENGINE=InnoDB;
XA START 'xid';
INSERT INTO t1 VALUES (1,2);
--error ER_XAER_RMFAIL
CREATE TABLE x AS SELECT * FROM t1;
--connect (con1,localhost,root,,test)
SET foreign_key_checks= OFF, innodb_lock_wait_timeout= 1;
--error ER_LOCK_WAIT_TIMEOUT
ALTER TABLE t1 ADD FOREIGN KEY f (a) REFERENCES t1 (pk), LOCK=EXCLUSIVE;# Cleanup
--disconnect con1
--connection default
XA END 'xid';
XA ROLLBACK 'xid';
DROP TABLE t1;
# #
# End of 10.1 tests # End of 10.1 tests
# #
......
...@@ -198,8 +198,6 @@ synchronized defragmentation. */ ...@@ -198,8 +198,6 @@ synchronized defragmentation. */
os_event_t os_event_t
btr_defragment_add_index( btr_defragment_add_index(
dict_index_t* index, /*!< index to be added */ dict_index_t* index, /*!< index to be added */
bool async, /*!< whether this is an async
defragmentation */
dberr_t* err) /*!< out: error code */ dberr_t* err) /*!< out: error code */
{ {
mtr_t mtr; mtr_t mtr;
...@@ -228,10 +226,7 @@ btr_defragment_add_index( ...@@ -228,10 +226,7 @@ btr_defragment_add_index(
return NULL; return NULL;
} }
btr_pcur_t* pcur = btr_pcur_create_for_mysql(); btr_pcur_t* pcur = btr_pcur_create_for_mysql();
os_event_t event = NULL; os_event_t event = os_event_create(0);
if (!async) {
event = os_event_create(0);
}
btr_pcur_open_at_index_side(true, index, BTR_SEARCH_LEAF, pcur, btr_pcur_open_at_index_side(true, index, BTR_SEARCH_LEAF, pcur,
true, 0, &mtr); true, 0, &mtr);
btr_pcur_move_to_next(pcur, &mtr); btr_pcur_move_to_next(pcur, &mtr);
......
...@@ -286,7 +286,6 @@ fts_cache_destroy(fts_cache_t* cache) ...@@ -286,7 +286,6 @@ fts_cache_destroy(fts_cache_t* cache)
{ {
rw_lock_free(&cache->lock); rw_lock_free(&cache->lock);
rw_lock_free(&cache->init_lock); rw_lock_free(&cache->init_lock);
mutex_free(&cache->optimize_lock);
mutex_free(&cache->deleted_lock); mutex_free(&cache->deleted_lock);
mutex_free(&cache->doc_id_lock); mutex_free(&cache->doc_id_lock);
os_event_destroy(cache->sync->event); os_event_destroy(cache->sync->event);
...@@ -622,8 +621,6 @@ fts_cache_create( ...@@ -622,8 +621,6 @@ fts_cache_create(
mutex_create(LATCH_ID_FTS_DELETE, &cache->deleted_lock); mutex_create(LATCH_ID_FTS_DELETE, &cache->deleted_lock);
mutex_create(LATCH_ID_FTS_OPTIMIZE, &cache->optimize_lock);
mutex_create(LATCH_ID_FTS_DOC_ID, &cache->doc_id_lock); mutex_create(LATCH_ID_FTS_DOC_ID, &cache->doc_id_lock);
/* This is the heap used to create the cache itself. */ /* This is the heap used to create the cache itself. */
......
...@@ -2622,9 +2622,13 @@ fts_optimize_remove_table( ...@@ -2622,9 +2622,13 @@ fts_optimize_remove_table(
os_event_destroy(event); os_event_destroy(event);
ut_d(mutex_enter(&fts_optimize_wq->mutex)); #ifdef UNIV_DEBUG
if (!fts_opt_start_shutdown) {
mutex_enter(&fts_optimize_wq->mutex);
ut_ad(!table->fts->in_queue); ut_ad(!table->fts->in_queue);
ut_d(mutex_exit(&fts_optimize_wq->mutex)); mutex_exit(&fts_optimize_wq->mutex);
}
#endif /* UNIV_DEBUG */
} }
/** Send sync fts cache for the table. /** Send sync fts cache for the table.
......
...@@ -509,7 +509,6 @@ performance schema instrumented if "UNIV_PFS_MUTEX" ...@@ -509,7 +509,6 @@ performance schema instrumented if "UNIV_PFS_MUTEX"
is defined */ is defined */
static PSI_mutex_info all_innodb_mutexes[] = { static PSI_mutex_info all_innodb_mutexes[] = {
PSI_KEY(buf_pool_mutex), PSI_KEY(buf_pool_mutex),
PSI_KEY(cache_last_read_mutex),
PSI_KEY(dict_foreign_err_mutex), PSI_KEY(dict_foreign_err_mutex),
PSI_KEY(dict_sys_mutex), PSI_KEY(dict_sys_mutex),
PSI_KEY(recalc_pool_mutex), PSI_KEY(recalc_pool_mutex),
...@@ -517,7 +516,6 @@ static PSI_mutex_info all_innodb_mutexes[] = { ...@@ -517,7 +516,6 @@ static PSI_mutex_info all_innodb_mutexes[] = {
PSI_KEY(flush_list_mutex), PSI_KEY(flush_list_mutex),
PSI_KEY(fts_bg_threads_mutex), PSI_KEY(fts_bg_threads_mutex),
PSI_KEY(fts_delete_mutex), PSI_KEY(fts_delete_mutex),
PSI_KEY(fts_optimize_mutex),
PSI_KEY(fts_doc_id_mutex), PSI_KEY(fts_doc_id_mutex),
PSI_KEY(log_flush_order_mutex), PSI_KEY(log_flush_order_mutex),
PSI_KEY(ibuf_bitmap_mutex), PSI_KEY(ibuf_bitmap_mutex),
...@@ -14520,25 +14518,14 @@ ha_innobase::analyze(THD*, HA_CHECK_OPT*) ...@@ -14520,25 +14518,14 @@ ha_innobase::analyze(THD*, HA_CHECK_OPT*)
/*****************************************************************//** /*****************************************************************//**
Defragment table. Defragment table.
@return error number */ @return error number */
UNIV_INTERN inline int ha_innobase::defragment_table(const char *name)
int
ha_innobase::defragment_table(
/*==========================*/
const char* name, /*!< in: table name */
const char* index_name, /*!< in: index name */
bool async) /*!< in: whether to wait until finish */
{ {
char norm_name[FN_REFLEN]; char norm_name[FN_REFLEN];
dict_table_t* table = NULL; dict_table_t* table = NULL;
dict_index_t* index = NULL; dict_index_t* index = NULL;
ibool one_index = (index_name != 0);
int ret = 0; int ret = 0;
dberr_t err = DB_SUCCESS; dberr_t err = DB_SUCCESS;
if (!srv_defragment) {
return ER_FEATURE_DISABLED;
}
normalize_table_name(norm_name, name); normalize_table_name(norm_name, name);
table = dict_table_open_on_name(norm_name, FALSE, table = dict_table_open_on_name(norm_name, FALSE,
...@@ -14566,10 +14553,6 @@ ha_innobase::defragment_table( ...@@ -14566,10 +14553,6 @@ ha_innobase::defragment_table(
continue; continue;
} }
if (one_index && strcasecmp(index_name, index->name) != 0) {
continue;
}
if (btr_defragment_find_index(index)) { if (btr_defragment_find_index(index)) {
// We borrow this error code. When the same index is // We borrow this error code. When the same index is
// already in the defragmentation queue, issue another // already in the defragmentation queue, issue another
...@@ -14585,7 +14568,7 @@ ha_innobase::defragment_table( ...@@ -14585,7 +14568,7 @@ ha_innobase::defragment_table(
break; break;
} }
os_event_t event = btr_defragment_add_index(index, async, &err); os_event_t event = btr_defragment_add_index(index, &err);
if (err != DB_SUCCESS) { if (err != DB_SUCCESS) {
push_warning_printf( push_warning_printf(
...@@ -14601,7 +14584,7 @@ ha_innobase::defragment_table( ...@@ -14601,7 +14584,7 @@ ha_innobase::defragment_table(
break; break;
} }
if (!async && event) { if (event) {
while(os_event_wait_time(event, 1000000)) { while(os_event_wait_time(event, 1000000)) {
if (thd_killed(current_thd)) { if (thd_killed(current_thd)) {
btr_defragment_remove_index(index); btr_defragment_remove_index(index);
...@@ -14615,19 +14598,9 @@ ha_innobase::defragment_table( ...@@ -14615,19 +14598,9 @@ ha_innobase::defragment_table(
if (ret) { if (ret) {
break; break;
} }
if (one_index) {
one_index = FALSE;
break;
}
} }
dict_table_close(table, FALSE, FALSE); dict_table_close(table, FALSE, FALSE);
if (ret == 0 && one_index) {
ret = ER_NO_SUCH_INDEX;
}
return ret; return ret;
} }
...@@ -14653,8 +14626,7 @@ ha_innobase::optimize( ...@@ -14653,8 +14626,7 @@ ha_innobase::optimize(
bool try_alter = true; bool try_alter = true;
if (!m_prebuilt->table->is_temporary() && srv_defragment) { if (!m_prebuilt->table->is_temporary() && srv_defragment) {
int err= defragment_table( int err = defragment_table(m_prebuilt->table->name.m_name);
m_prebuilt->table->name.m_name, NULL, false);
if (err == 0) { if (err == 0) {
try_alter = false; try_alter = false;
......
...@@ -212,8 +212,7 @@ class ha_innobase final : public handler ...@@ -212,8 +212,7 @@ class ha_innobase final : public handler
int delete_table(const char *name) override; int delete_table(const char *name) override;
int rename_table(const char* from, const char* to) override; int rename_table(const char* from, const char* to) override;
int defragment_table(const char* name, const char* index_name, inline int defragment_table(const char* name);
bool async);
int check(THD* thd, HA_CHECK_OPT* check_opt) override; int check(THD* thd, HA_CHECK_OPT* check_opt) override;
char* update_table_comment(const char* comment) override; char* update_table_comment(const char* comment) override;
......
...@@ -7167,6 +7167,12 @@ prepare_inplace_alter_table_dict( ...@@ -7167,6 +7167,12 @@ prepare_inplace_alter_table_dict(
} }
trx_commit_for_mysql(ctx->prebuilt->trx); trx_commit_for_mysql(ctx->prebuilt->trx);
for (uint i = 0; i < ctx->num_to_add_fk; i++) {
if (ctx->add_fk[i]) {
dict_foreign_free(ctx->add_fk[i]);
}
}
delete ctx; delete ctx;
ha_alter_info->handler_ctx = NULL; ha_alter_info->handler_ctx = NULL;
......
...@@ -49,8 +49,6 @@ is a synchronized defragmentation. */ ...@@ -49,8 +49,6 @@ is a synchronized defragmentation. */
os_event_t os_event_t
btr_defragment_add_index( btr_defragment_add_index(
dict_index_t* index, /*!< index to be added */ dict_index_t* index, /*!< index to be added */
bool async, /*!< whether this is an async
defragmentation */
dberr_t* err); /*!< out: error code */ dberr_t* err); /*!< out: error code */
/******************************************************************//** /******************************************************************//**
When table is dropped, this function is called to mark a table as removed in When table is dropped, this function is called to mark a table as removed in
......
...@@ -131,8 +131,6 @@ struct fts_cache_t { ...@@ -131,8 +131,6 @@ struct fts_cache_t {
intialization, it has different intialization, it has different
SYNC level as above cache lock */ SYNC level as above cache lock */
ib_mutex_t optimize_lock; /*!< Lock for OPTIMIZE */
ib_mutex_t deleted_lock; /*!< Lock covering deleted_doc_ids */ ib_mutex_t deleted_lock; /*!< Lock covering deleted_doc_ids */
ib_mutex_t doc_id_lock; /*!< Lock covering Doc ID */ ib_mutex_t doc_id_lock; /*!< Lock covering Doc ID */
......
...@@ -578,12 +578,6 @@ struct rw_lock_t : ...@@ -578,12 +578,6 @@ struct rw_lock_t :
/** number of granted SX locks. */ /** number of granted SX locks. */
volatile ulint sx_recursive; volatile ulint sx_recursive;
/** This is TRUE if the writer field is RW_LOCK_X_WAIT; this field
is located far from the memory update hotspot fields which are at
the start of this struct, thus we can peek this field without
causing much memory bus traffic */
bool writer_is_wait_ex;
/** The value is typically set to thread id of a writer thread making /** The value is typically set to thread id of a writer thread making
normal rw_locks recursive. In case of asynchronous IO, when a non-zero normal rw_locks recursive. In case of asynchronous IO, when a non-zero
value of 'pass' is passed then we keep the lock non-recursive. value of 'pass' is passed then we keep the lock non-recursive.
......
...@@ -51,14 +51,12 @@ instrumentation due to their large number of instances. */ ...@@ -51,14 +51,12 @@ instrumentation due to their large number of instances. */
#ifdef UNIV_PFS_MUTEX #ifdef UNIV_PFS_MUTEX
/* Key defines to register InnoDB mutexes with performance schema */ /* Key defines to register InnoDB mutexes with performance schema */
extern mysql_pfs_key_t buf_pool_mutex_key; extern mysql_pfs_key_t buf_pool_mutex_key;
extern mysql_pfs_key_t cache_last_read_mutex_key;
extern mysql_pfs_key_t dict_foreign_err_mutex_key; extern mysql_pfs_key_t dict_foreign_err_mutex_key;
extern mysql_pfs_key_t dict_sys_mutex_key; extern mysql_pfs_key_t dict_sys_mutex_key;
extern mysql_pfs_key_t fil_system_mutex_key; extern mysql_pfs_key_t fil_system_mutex_key;
extern mysql_pfs_key_t flush_list_mutex_key; extern mysql_pfs_key_t flush_list_mutex_key;
extern mysql_pfs_key_t fts_bg_threads_mutex_key; extern mysql_pfs_key_t fts_bg_threads_mutex_key;
extern mysql_pfs_key_t fts_delete_mutex_key; extern mysql_pfs_key_t fts_delete_mutex_key;
extern mysql_pfs_key_t fts_optimize_mutex_key;
extern mysql_pfs_key_t fts_doc_id_mutex_key; extern mysql_pfs_key_t fts_doc_id_mutex_key;
extern mysql_pfs_key_t fts_pll_tokenize_mutex_key; extern mysql_pfs_key_t fts_pll_tokenize_mutex_key;
extern mysql_pfs_key_t ibuf_bitmap_mutex_key; extern mysql_pfs_key_t ibuf_bitmap_mutex_key;
......
...@@ -256,8 +256,6 @@ enum latch_level_t { ...@@ -256,8 +256,6 @@ enum latch_level_t {
SYNC_DICT_OPERATION, SYNC_DICT_OPERATION,
SYNC_TRX_I_S_LAST_READ,
SYNC_TRX_I_S_RWLOCK, SYNC_TRX_I_S_RWLOCK,
SYNC_RECV_WRITER, SYNC_RECV_WRITER,
...@@ -280,7 +278,6 @@ up its meta-data. See sync0debug.c. */ ...@@ -280,7 +278,6 @@ up its meta-data. See sync0debug.c. */
enum latch_id_t { enum latch_id_t {
LATCH_ID_NONE = 0, LATCH_ID_NONE = 0,
LATCH_ID_BUF_POOL, LATCH_ID_BUF_POOL,
LATCH_ID_CACHE_LAST_READ,
LATCH_ID_DICT_FOREIGN_ERR, LATCH_ID_DICT_FOREIGN_ERR,
LATCH_ID_DICT_SYS, LATCH_ID_DICT_SYS,
LATCH_ID_FILE_FORMAT_MAX, LATCH_ID_FILE_FORMAT_MAX,
...@@ -288,7 +285,6 @@ enum latch_id_t { ...@@ -288,7 +285,6 @@ enum latch_id_t {
LATCH_ID_FLUSH_LIST, LATCH_ID_FLUSH_LIST,
LATCH_ID_FTS_BG_THREADS, LATCH_ID_FTS_BG_THREADS,
LATCH_ID_FTS_DELETE, LATCH_ID_FTS_DELETE,
LATCH_ID_FTS_OPTIMIZE,
LATCH_ID_FTS_DOC_ID, LATCH_ID_FTS_DOC_ID,
LATCH_ID_FTS_PLL_TOKENIZE, LATCH_ID_FTS_PLL_TOKENIZE,
LATCH_ID_IBUF_BITMAP, LATCH_ID_IBUF_BITMAP,
......
...@@ -506,7 +506,6 @@ LatchDebug::LatchDebug() ...@@ -506,7 +506,6 @@ LatchDebug::LatchDebug()
LEVEL_MAP_INSERT(SYNC_DICT); LEVEL_MAP_INSERT(SYNC_DICT);
LEVEL_MAP_INSERT(SYNC_FTS_CACHE); LEVEL_MAP_INSERT(SYNC_FTS_CACHE);
LEVEL_MAP_INSERT(SYNC_DICT_OPERATION); LEVEL_MAP_INSERT(SYNC_DICT_OPERATION);
LEVEL_MAP_INSERT(SYNC_TRX_I_S_LAST_READ);
LEVEL_MAP_INSERT(SYNC_TRX_I_S_RWLOCK); LEVEL_MAP_INSERT(SYNC_TRX_I_S_RWLOCK);
LEVEL_MAP_INSERT(SYNC_RECV_WRITER); LEVEL_MAP_INSERT(SYNC_RECV_WRITER);
LEVEL_MAP_INSERT(SYNC_LEVEL_VARYING); LEVEL_MAP_INSERT(SYNC_LEVEL_VARYING);
...@@ -764,7 +763,6 @@ LatchDebug::check_order( ...@@ -764,7 +763,6 @@ LatchDebug::check_order(
case SYNC_DICT_OPERATION: case SYNC_DICT_OPERATION:
case SYNC_DICT_HEADER: case SYNC_DICT_HEADER:
case SYNC_TRX_I_S_RWLOCK: case SYNC_TRX_I_S_RWLOCK:
case SYNC_TRX_I_S_LAST_READ:
case SYNC_IBUF_MUTEX: case SYNC_IBUF_MUTEX:
case SYNC_INDEX_ONLINE_LOG: case SYNC_INDEX_ONLINE_LOG:
case SYNC_STATS_AUTO_RECALC: case SYNC_STATS_AUTO_RECALC:
...@@ -1253,9 +1251,6 @@ sync_latch_meta_init() ...@@ -1253,9 +1251,6 @@ sync_latch_meta_init()
LATCH_ADD_MUTEX(BUF_POOL, SYNC_BUF_POOL, buf_pool_mutex_key); LATCH_ADD_MUTEX(BUF_POOL, SYNC_BUF_POOL, buf_pool_mutex_key);
LATCH_ADD_MUTEX(CACHE_LAST_READ, SYNC_TRX_I_S_LAST_READ,
cache_last_read_mutex_key);
LATCH_ADD_MUTEX(DICT_FOREIGN_ERR, SYNC_NO_ORDER_CHECK, LATCH_ADD_MUTEX(DICT_FOREIGN_ERR, SYNC_NO_ORDER_CHECK,
dict_foreign_err_mutex_key); dict_foreign_err_mutex_key);
...@@ -1270,9 +1265,6 @@ sync_latch_meta_init() ...@@ -1270,9 +1265,6 @@ sync_latch_meta_init()
LATCH_ADD_MUTEX(FTS_DELETE, SYNC_FTS_OPTIMIZE, fts_delete_mutex_key); LATCH_ADD_MUTEX(FTS_DELETE, SYNC_FTS_OPTIMIZE, fts_delete_mutex_key);
LATCH_ADD_MUTEX(FTS_OPTIMIZE, SYNC_FTS_OPTIMIZE,
fts_optimize_mutex_key);
LATCH_ADD_MUTEX(FTS_DOC_ID, SYNC_FTS_OPTIMIZE, fts_doc_id_mutex_key); LATCH_ADD_MUTEX(FTS_DOC_ID, SYNC_FTS_OPTIMIZE, fts_doc_id_mutex_key);
LATCH_ADD_MUTEX(FTS_PLL_TOKENIZE, SYNC_FTS_TOKENIZE, LATCH_ADD_MUTEX(FTS_PLL_TOKENIZE, SYNC_FTS_TOKENIZE,
......
...@@ -37,14 +37,12 @@ Created 9/5/1995 Heikki Tuuri ...@@ -37,14 +37,12 @@ Created 9/5/1995 Heikki Tuuri
#ifdef UNIV_PFS_MUTEX #ifdef UNIV_PFS_MUTEX
mysql_pfs_key_t buf_pool_mutex_key; mysql_pfs_key_t buf_pool_mutex_key;
mysql_pfs_key_t cache_last_read_mutex_key;
mysql_pfs_key_t dict_foreign_err_mutex_key; mysql_pfs_key_t dict_foreign_err_mutex_key;
mysql_pfs_key_t dict_sys_mutex_key; mysql_pfs_key_t dict_sys_mutex_key;
mysql_pfs_key_t fil_system_mutex_key; mysql_pfs_key_t fil_system_mutex_key;
mysql_pfs_key_t flush_list_mutex_key; mysql_pfs_key_t flush_list_mutex_key;
mysql_pfs_key_t fts_bg_threads_mutex_key; mysql_pfs_key_t fts_bg_threads_mutex_key;
mysql_pfs_key_t fts_delete_mutex_key; mysql_pfs_key_t fts_delete_mutex_key;
mysql_pfs_key_t fts_optimize_mutex_key;
mysql_pfs_key_t fts_doc_id_mutex_key; mysql_pfs_key_t fts_doc_id_mutex_key;
mysql_pfs_key_t fts_pll_tokenize_mutex_key; mysql_pfs_key_t fts_pll_tokenize_mutex_key;
mysql_pfs_key_t ibuf_bitmap_mutex_key; mysql_pfs_key_t ibuf_bitmap_mutex_key;
......
...@@ -141,12 +141,9 @@ struct i_s_table_cache_t { ...@@ -141,12 +141,9 @@ struct i_s_table_cache_t {
struct trx_i_s_cache_t { struct trx_i_s_cache_t {
rw_lock_t rw_lock; /*!< read-write lock protecting rw_lock_t rw_lock; /*!< read-write lock protecting
the rest of this structure */ the rest of this structure */
ulonglong last_read; /*!< last time the cache was read; Atomic_relaxed<ulonglong> last_read;
/*!< last time the cache was read;
measured in nanoseconds */ measured in nanoseconds */
ib_mutex_t last_read_mutex;/*!< mutex protecting the
last_read member - it is updated
inside a shared lock of the
rw_lock member */
i_s_table_cache_t innodb_trx; /*!< innodb_trx table */ i_s_table_cache_t innodb_trx; /*!< innodb_trx table */
i_s_table_cache_t innodb_locks; /*!< innodb_locks table */ i_s_table_cache_t innodb_locks; /*!< innodb_locks table */
i_s_table_cache_t innodb_lock_waits;/*!< innodb_lock_waits table */ i_s_table_cache_t innodb_lock_waits;/*!< innodb_lock_waits table */
...@@ -1136,8 +1133,7 @@ Checks if the cache can safely be updated. ...@@ -1136,8 +1133,7 @@ Checks if the cache can safely be updated.
@return whether the cache can be updated */ @return whether the cache can be updated */
static bool can_cache_be_updated(trx_i_s_cache_t* cache) static bool can_cache_be_updated(trx_i_s_cache_t* cache)
{ {
/* Here we read cache->last_read without acquiring its mutex /* cache->last_read is only updated when a shared rw lock on the
because last_read is only updated when a shared rw lock on the
whole cache is being held (see trx_i_s_cache_end_read()) and whole cache is being held (see trx_i_s_cache_end_read()) and
we are currently holding an exclusive rw lock on the cache. we are currently holding an exclusive rw lock on the cache.
So it is not possible for last_read to be updated while we are So it is not possible for last_read to be updated while we are
...@@ -1269,8 +1265,6 @@ trx_i_s_cache_init( ...@@ -1269,8 +1265,6 @@ trx_i_s_cache_init(
release lock mutex release lock mutex
release trx_i_s_cache_t::rw_lock release trx_i_s_cache_t::rw_lock
acquire trx_i_s_cache_t::rw_lock, S acquire trx_i_s_cache_t::rw_lock, S
acquire trx_i_s_cache_t::last_read_mutex
release trx_i_s_cache_t::last_read_mutex
release trx_i_s_cache_t::rw_lock */ release trx_i_s_cache_t::rw_lock */
rw_lock_create(trx_i_s_cache_lock_key, &cache->rw_lock, rw_lock_create(trx_i_s_cache_lock_key, &cache->rw_lock,
...@@ -1278,8 +1272,6 @@ trx_i_s_cache_init( ...@@ -1278,8 +1272,6 @@ trx_i_s_cache_init(
cache->last_read = 0; cache->last_read = 0;
mutex_create(LATCH_ID_CACHE_LAST_READ, &cache->last_read_mutex);
table_cache_init(&cache->innodb_trx, sizeof(i_s_trx_row_t)); table_cache_init(&cache->innodb_trx, sizeof(i_s_trx_row_t));
table_cache_init(&cache->innodb_locks, sizeof(i_s_locks_row_t)); table_cache_init(&cache->innodb_locks, sizeof(i_s_locks_row_t));
table_cache_init(&cache->innodb_lock_waits, table_cache_init(&cache->innodb_lock_waits,
...@@ -1303,7 +1295,6 @@ trx_i_s_cache_free( ...@@ -1303,7 +1295,6 @@ trx_i_s_cache_free(
trx_i_s_cache_t* cache) /*!< in, own: cache to free */ trx_i_s_cache_t* cache) /*!< in, own: cache to free */
{ {
rw_lock_free(&cache->rw_lock); rw_lock_free(&cache->rw_lock);
mutex_free(&cache->last_read_mutex);
cache->locks_hash.free(); cache->locks_hash.free();
ha_storage_free(cache->storage); ha_storage_free(cache->storage);
...@@ -1329,14 +1320,7 @@ trx_i_s_cache_end_read( ...@@ -1329,14 +1320,7 @@ trx_i_s_cache_end_read(
/*===================*/ /*===================*/
trx_i_s_cache_t* cache) /*!< in: cache */ trx_i_s_cache_t* cache) /*!< in: cache */
{ {
ut_ad(rw_lock_own(&cache->rw_lock, RW_LOCK_S)); cache->last_read = my_interval_timer();
/* update cache last read time */
const ulonglong now = my_interval_timer();
mutex_enter(&cache->last_read_mutex);
cache->last_read = now;
mutex_exit(&cache->last_read_mutex);
rw_lock_s_unlock(&cache->rw_lock); rw_lock_s_unlock(&cache->rw_lock);
} }
......
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