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ut0mem.c Merge changes in InnoDB-3.23.43b
ut0ut.c Merge changes in InnoDB-3.23.43b trx0purge.c Merge changes in InnoDB-3.23.43b trx0rec.c Merge changes in InnoDB-3.23.43b trx0trx.c Merge changes in InnoDB-3.23.43b trx0undo.c Merge changes in InnoDB-3.23.43b thr0loc.c Merge changes in InnoDB-3.23.43b sync0arr.c Merge changes in InnoDB-3.23.43b sync0rw.c Merge changes in InnoDB-3.23.43b sync0sync.c Merge changes in InnoDB-3.23.43b srv0srv.c Merge changes in InnoDB-3.23.43b srv0start.c Merge changes in InnoDB-3.23.43b row0ins.c Merge changes in InnoDB-3.23.43b row0mysql.c Merge changes in InnoDB-3.23.43b row0purge.c Merge changes in InnoDB-3.23.43b row0sel.c Merge changes in InnoDB-3.23.43b row0umod.c Merge changes in InnoDB-3.23.43b row0upd.c Merge changes in InnoDB-3.23.43b row0vers.c Merge changes in InnoDB-3.23.43b rem0cmp.c Merge changes in InnoDB-3.23.43b que0que.c Merge changes in InnoDB-3.23.43b pars0opt.c Merge changes in InnoDB-3.23.43b pars0pars.c Merge changes in InnoDB-3.23.43b lexyy.c Merge changes in InnoDB-3.23.43b pars0grm.c Merge changes in InnoDB-3.23.43b page0page.c Merge changes in InnoDB-3.23.43b os0file.c Merge changes in InnoDB-3.23.43b mtr0log.c Merge changes in InnoDB-3.23.43b mem0pool.c Merge changes in InnoDB-3.23.43b log0log.c Merge changes in InnoDB-3.23.43b log0recv.c Merge changes in InnoDB-3.23.43b lock0lock.c Merge changes in InnoDB-3.23.43b ibuf0ibuf.c Merge changes in InnoDB-3.23.43b fil0fil.c Merge changes in InnoDB-3.23.43b dict0crea.c Merge changes in InnoDB-3.23.43b dict0dict.c Merge changes in InnoDB-3.23.43b dict0load.c Merge changes in InnoDB-3.23.43b dict0mem.c Merge changes in InnoDB-3.23.43b data0data.c Merge changes in InnoDB-3.23.43b data0type.c Merge changes in InnoDB-3.23.43b buf0buf.c Merge changes in InnoDB-3.23.43b buf0lru.c Merge changes in InnoDB-3.23.43b btr0btr.c Merge changes in InnoDB-3.23.43b btr0cur.c Merge changes in InnoDB-3.23.43b btr0pcur.c Merge changes in InnoDB-3.23.43b btr0sea.c Merge changes in InnoDB-3.23.43b data0type.ic Merge changes in InnoDB-3.23.43b dict0dict.ic Merge changes in InnoDB-3.23.43b mtr0mtr.ic Merge changes in InnoDB-3.23.43b row0upd.ic Merge changes in InnoDB-3.23.43b sync0ipm.ic Merge changes in InnoDB-3.23.43b sync0rw.ic Merge changes in InnoDB-3.23.43b sync0sync.ic Merge changes in InnoDB-3.23.43b trx0rseg.ic Merge changes in InnoDB-3.23.43b btr0pcur.ic Merge changes in InnoDB-3.23.43b buf0buf.ic Merge changes in InnoDB-3.23.43b data0data.ic Merge changes in InnoDB-3.23.43b row0upd.h Merge changes in InnoDB-3.23.43b srv0srv.h Merge changes in InnoDB-3.23.43b sync0arr.h Merge changes in InnoDB-3.23.43b sync0rw.h Merge changes in InnoDB-3.23.43b sync0sync.h Merge changes in InnoDB-3.23.43b trx0trx.h Merge changes in InnoDB-3.23.43b ut0mem.h Merge changes in InnoDB-3.23.43b data0data.h Merge changes in InnoDB-3.23.43b data0type.h Merge changes in InnoDB-3.23.43b db0err.h Merge changes in InnoDB-3.23.43b dict0crea.h Merge changes in InnoDB-3.23.43b dict0dict.h Merge changes in InnoDB-3.23.43b dict0load.h Merge changes in InnoDB-3.23.43b dict0mem.h Merge changes in InnoDB-3.23.43b dict0types.h Merge changes in InnoDB-3.23.43b fil0fil.h Merge changes in InnoDB-3.23.43b ibuf0ibuf.h Merge changes in InnoDB-3.23.43b lock0lock.h Merge changes in InnoDB-3.23.43b log0log.h Merge changes in InnoDB-3.23.43b mtr0mtr.h Merge changes in InnoDB-3.23.43b rem0cmp.h Merge changes in InnoDB-3.23.43b row0ins.h Merge changes in InnoDB-3.23.43b row0mysql.h Merge changes in InnoDB-3.23.43b btr0cur.h Merge changes in InnoDB-3.23.43b btr0pcur.h Merge changes in InnoDB-3.23.43b btr0sea.h Merge changes in InnoDB-3.23.43b buf0buf.h Merge changes in InnoDB-3.23.43b sql_table.cc Merge changes in InnoDB-3.23.43b sql_db.cc Merge changes in InnoDB-3.23.43b ha_innobase.cc Merge changes in InnoDB-3.23.43b handler.cc Merge changes in InnoDB-3.23.43b ha_innobase.h Merge changes in InnoDB-3.23.43b handler.h Merge changes in InnoDB-3.23.43b
This commit is contained in:
heikki@donna.mysql.fi
@ -30,6 +30,7 @@ Created 10/8/1995 Heikki Tuuri
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#include "ut0mem.h"
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#include "os0proc.h"
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#include "mem0mem.h"
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#include "mem0pool.h"
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#include "sync0sync.h"
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#include "sync0ipm.h"
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#include "thr0loc.h"
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@ -46,11 +47,14 @@ Created 10/8/1995 Heikki Tuuri
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#include "ibuf0ibuf.h"
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#include "buf0flu.h"
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#include "btr0sea.h"
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#include "dict0load.h"
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/* The following counter is incremented whenever there is some user activity
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in the server */
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ulint srv_activity_count = 0;
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char* srv_main_thread_op_info = "";
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/* Server parameters which are read from the initfile */
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/* The following three are dir paths which are catenated before file
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@ -66,6 +70,11 @@ ulint* srv_data_file_sizes = NULL; /* size in database pages */
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ulint* srv_data_file_is_raw_partition = NULL;
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/* If the following is TRUE we do not allow inserts etc. This protects
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the user from forgetting the 'newraw' keyword to my.cnf */
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ibool srv_created_new_raw = FALSE;
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char** srv_log_group_home_dirs = NULL;
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ulint srv_n_log_groups = ULINT_MAX;
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@ -75,6 +84,9 @@ ibool srv_log_archive_on = TRUE;
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ulint srv_log_buffer_size = ULINT_MAX; /* size in database pages */
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ibool srv_flush_log_at_trx_commit = TRUE;
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byte srv_latin1_ordering[256]; /* The sort order table of the latin1
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character set */
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ibool srv_use_native_aio = FALSE;
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ulint srv_pool_size = ULINT_MAX; /* size in database pages;
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@ -93,6 +105,11 @@ ulint srv_lock_wait_timeout = 1024 * 1024 * 1024;
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char* srv_unix_file_flush_method_str = NULL;
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ulint srv_unix_file_flush_method = 0;
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/* If the following is != 0 we do not allow inserts etc. This protects
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the user from forgetting innodb_force_recovery keyword to my.cnf */
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ulint srv_force_recovery = 0;
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ibool srv_use_doublewrite_buf = TRUE;
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ibool srv_set_thread_priorities = TRUE;
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@ -115,10 +132,15 @@ ulint srv_n_rows_inserted = 0;
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ulint srv_n_rows_updated = 0;
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ulint srv_n_rows_deleted = 0;
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ulint srv_n_rows_read = 0;
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ulint srv_n_rows_inserted_old = 0;
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ulint srv_n_rows_updated_old = 0;
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ulint srv_n_rows_deleted_old = 0;
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ulint srv_n_rows_read_old = 0;
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ibool srv_print_innodb_monitor = FALSE;
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ibool srv_print_innodb_lock_monitor = FALSE;
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ibool srv_print_innodb_tablespace_monitor = FALSE;
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ibool srv_print_innodb_table_monitor = FALSE;
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/* The parameters below are obsolete: */
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@ -1739,31 +1761,153 @@ srv_release_mysql_thread_if_suspended(
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}
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/*************************************************************************
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A thread which wakes up threads whose lock wait may have lasted too long. */
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A thread which wakes up threads whose lock wait may have lasted too long.
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This also prints the info output by various InnoDB monitors. */
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#ifndef __WIN__
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void*
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#else
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ulint
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#endif
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srv_lock_timeout_monitor_thread(
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/*============================*/
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srv_lock_timeout_and_monitor_thread(
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/*================================*/
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/* out: a dummy parameter */
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void* arg) /* in: a dummy parameter required by
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os_thread_create */
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{
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double time_elapsed;
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time_t current_time;
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time_t last_monitor_time;
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ibool some_waits;
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srv_slot_t* slot;
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double wait_time;
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ulint i;
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UT_NOT_USED(arg);
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last_monitor_time = time(NULL);
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loop:
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/* When someone is waiting for a lock, we wake up every second
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and check if a timeout has passed for a lock wait */
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os_thread_sleep(1000000);
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os_thread_sleep(1000000);
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/* In case mutex_exit is not a memory barrier, it is
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theoretically possible some threads are left waiting though
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the semaphore is already released. Wake up those threads: */
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sync_arr_wake_threads_if_sema_free();
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current_time = time(NULL);
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time_elapsed = difftime(current_time, last_monitor_time);
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if (time_elapsed > 15) {
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last_monitor_time = time(NULL);
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if (srv_print_innodb_monitor) {
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printf("=====================================\n");
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ut_print_timestamp(stdout);
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printf(" INNODB MONITOR OUTPUT\n"
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"=====================================\n");
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printf("----------\n"
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"SEMAPHORES\n"
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"----------\n");
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sync_print();
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printf("------------\n"
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"TRANSACTIONS\n"
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"------------\n");
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lock_print_info();
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printf("--------\n"
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"FILE I/O\n"
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"--------\n");
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os_aio_print();
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printf("-------------\n"
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"INSERT BUFFER\n"
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"-------------\n");
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ibuf_print();
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printf("---\n"
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"LOG\n"
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"---\n");
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log_print();
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printf("----------------------\n"
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"BUFFER POOL AND MEMORY\n"
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"----------------------\n");
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printf(
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"Total memory allocated %lu; in additional pool allocated %lu\n",
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ut_total_allocated_memory,
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mem_pool_get_reserved(mem_comm_pool));
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buf_print_io();
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printf("--------------\n"
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"ROW OPERATIONS\n"
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"--------------\n");
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printf("InnoDB main thread state: %s\n",
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srv_main_thread_op_info);
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printf(
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"Number of rows inserted %lu, updated %lu, deleted %lu, read %lu\n",
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srv_n_rows_inserted,
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srv_n_rows_updated,
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srv_n_rows_deleted,
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srv_n_rows_read);
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printf(
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"%.2f inserts/s, %.2f updates/s, %.2f deletes/s, %.2f reads/s\n",
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(srv_n_rows_inserted - srv_n_rows_inserted_old)
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/ time_elapsed,
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(srv_n_rows_updated - srv_n_rows_updated_old)
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/ time_elapsed,
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(srv_n_rows_deleted - srv_n_rows_deleted_old)
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/ time_elapsed,
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(srv_n_rows_read - srv_n_rows_read_old)
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/ time_elapsed);
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srv_n_rows_inserted_old = srv_n_rows_inserted;
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srv_n_rows_updated_old = srv_n_rows_updated;
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srv_n_rows_deleted_old = srv_n_rows_deleted;
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srv_n_rows_read_old = srv_n_rows_read;
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printf("----------------------------\n"
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"END OF INNODB MONITOR OUTPUT\n"
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"============================\n");
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}
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if (srv_print_innodb_tablespace_monitor) {
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printf("================================================\n");
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ut_print_timestamp(stdout);
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printf(" INNODB TABLESPACE MONITOR OUTPUT\n"
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"================================================\n");
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fsp_print(0);
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fprintf(stderr, "Validating tablespace\n");
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fsp_validate(0);
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fprintf(stderr, "Validation ok\n");
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printf("---------------------------------------\n"
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"END OF INNODB TABLESPACE MONITOR OUTPUT\n"
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"=======================================\n");
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}
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if (srv_print_innodb_table_monitor) {
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printf("===========================================\n");
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ut_print_timestamp(stdout);
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printf(" INNODB TABLE MONITOR OUTPUT\n"
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"===========================================\n");
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dict_print();
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printf("-----------------------------------\n"
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"END OF INNODB TABLE MONITOR OUTPUT\n"
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"==================================\n");
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}
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}
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mutex_enter(&kernel_mutex);
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some_waits = FALSE;
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@ -1786,11 +1930,10 @@ loop:
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/* Timeout exceeded or a wrap over in system
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time counter: cancel the lock request queued
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by the transaction; NOTE that currently only
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a record lock request can be waiting in
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MySQL! */
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by the transaction and release possible
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other transactions waiting behind */
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lock_rec_cancel(
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lock_cancel_waiting_and_release(
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thr_get_trx(slot->thr)->wait_lock);
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}
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}
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@ -1800,11 +1943,15 @@ loop:
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mutex_exit(&kernel_mutex);
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if (some_waits) {
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if (some_waits || srv_print_innodb_monitor
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|| srv_print_innodb_lock_monitor
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|| srv_print_innodb_tablespace_monitor
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|| srv_print_innodb_table_monitor) {
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goto loop;
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}
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/* No one was waiting for a lock: suspend this thread */
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/* No one was waiting for a lock and no monitor was active:
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suspend this thread */
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os_event_wait(srv_lock_timeout_thread_event);
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@ -1817,6 +1964,36 @@ loop:
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#endif
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}
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/*************************************************************************
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A thread which prints warnings about semaphore waits which have lasted
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too long. These can be used to track bugs which cause hangs. */
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#ifndef __WIN__
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void*
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#else
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ulint
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#endif
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srv_error_monitor_thread(
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/*=====================*/
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/* out: a dummy parameter */
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void* arg) /* in: a dummy parameter required by
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os_thread_create */
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{
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UT_NOT_USED(arg);
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loop:
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os_thread_sleep(10000000);
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sync_array_print_long_waits();
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goto loop;
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#ifndef __WIN__
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return(NULL);
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#else
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return(0);
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#endif
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}
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/***********************************************************************
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Tells the InnoDB server that there has been activity in the database
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and wakes up the master thread if it is suspended (not sleeping). Used
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@ -1855,15 +2032,18 @@ srv_master_thread(
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os_thread_create */
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{
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os_event_t event;
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time_t last_flush_time;
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time_t current_time;
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ulint old_activity_count;
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ulint n_pages_purged;
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ulint n_bytes_merged;
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ulint n_pages_flushed;
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ulint n_bytes_archived;
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ulint n_ios;
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ulint n_ios_old;
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ulint n_ios_very_old;
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ulint n_pend_ios;
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ulint i;
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time_t last_flush_time;
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time_t current_time;
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time_t last_monitor_time;
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UT_NOT_USED(arg);
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@ -1876,26 +2056,56 @@ srv_master_thread(
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mutex_exit(&kernel_mutex);
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os_event_set(srv_sys->operational);
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last_monitor_time = time(NULL);
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loop:
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srv_main_thread_op_info = "reserving kernel mutex";
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n_ios_very_old = log_sys->n_log_ios + buf_pool->n_pages_read
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+ buf_pool->n_pages_written;
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mutex_enter(&kernel_mutex);
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old_activity_count = srv_activity_count;
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mutex_exit(&kernel_mutex);
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/* We run purge every 10 seconds, even if the server were active: */
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/* We run purge and a batch of ibuf_contract every 10 seconds, even
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if the server were active: */
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for (i = 0; i < 10; i++) {
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n_ios_old = log_sys->n_log_ios + buf_pool->n_pages_read
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+ buf_pool->n_pages_written;
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srv_main_thread_op_info = "sleeping";
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os_thread_sleep(1000000);
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if (srv_force_recovery >= SRV_FORCE_NO_BACKGROUND) {
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goto loop;
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}
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/* We flush the log once in a second even if no commit
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is issued or the we have specified in my.cnf no flush
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at transaction commit */
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srv_main_thread_op_info = "flushing log";
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log_flush_up_to(ut_dulint_max, LOG_WAIT_ONE_GROUP);
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/* If there were less than 10 i/os during the
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one second sleep, we assume that there is free
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disk i/o capacity available, and it makes sense to
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do an insert buffer merge. */
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n_pend_ios = buf_get_n_pending_ios()
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+ log_sys->n_pending_writes;
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n_ios = log_sys->n_log_ios + buf_pool->n_pages_read
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+ buf_pool->n_pages_written;
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if (n_pend_ios < 3 && (n_ios - n_ios_old < 10)) {
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srv_main_thread_op_info = "doing insert buffer merge";
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ibuf_contract_for_n_pages(TRUE, 5);
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srv_main_thread_op_info = "flushing log";
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log_flush_up_to(ut_dulint_max, LOG_WAIT_ONE_GROUP);
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}
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|
||||
if (srv_activity_count == old_activity_count) {
|
||||
|
||||
if (srv_print_thread_releases) {
|
||||
@ -1910,28 +2120,48 @@ loop:
|
||||
printf("Master thread wakes up!\n");
|
||||
}
|
||||
|
||||
/* If there were less than 200 i/os during the 10 second period,
|
||||
we assume that there is free disk i/o capacity available, and it
|
||||
makes sense to do a buffer pool flush. */
|
||||
|
||||
n_pend_ios = buf_get_n_pending_ios() + log_sys->n_pending_writes;
|
||||
n_ios = log_sys->n_log_ios + buf_pool->n_pages_read
|
||||
+ buf_pool->n_pages_written;
|
||||
if (n_pend_ios < 3 && (n_ios - n_ios_very_old < 200)) {
|
||||
|
||||
srv_main_thread_op_info = "flushing buffer pool pages";
|
||||
buf_flush_batch(BUF_FLUSH_LIST, 50, ut_dulint_max);
|
||||
|
||||
srv_main_thread_op_info = "flushing log";
|
||||
log_flush_up_to(ut_dulint_max, LOG_WAIT_ONE_GROUP);
|
||||
}
|
||||
|
||||
/* We run a batch of insert buffer merge every 10 seconds,
|
||||
even if the server were active */
|
||||
|
||||
srv_main_thread_op_info = "doing insert buffer merge";
|
||||
ibuf_contract_for_n_pages(TRUE, 5);
|
||||
|
||||
srv_main_thread_op_info = "flushing log";
|
||||
log_flush_up_to(ut_dulint_max, LOG_WAIT_ONE_GROUP);
|
||||
|
||||
/* We run a full purge every 10 seconds, even if the server
|
||||
were active */
|
||||
|
||||
n_pages_purged = 1;
|
||||
|
||||
last_flush_time = time(NULL);
|
||||
|
||||
while (n_pages_purged) {
|
||||
/* TODO: replace this by a check if we are running
|
||||
out of file space! */
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB starts purge\n");
|
||||
}
|
||||
|
||||
n_pages_purged = trx_purge();
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB purged %lu pages\n", n_pages_purged);
|
||||
}
|
||||
srv_main_thread_op_info = "purging";
|
||||
n_pages_purged = trx_purge();
|
||||
|
||||
current_time = time(NULL);
|
||||
|
||||
if (difftime(current_time, last_flush_time) > 1) {
|
||||
srv_main_thread_op_info = "flushing log";
|
||||
|
||||
log_flush_up_to(ut_dulint_max, LOG_WAIT_ONE_GROUP);
|
||||
last_flush_time = current_time;
|
||||
}
|
||||
@ -1941,67 +2171,7 @@ background_loop:
|
||||
/* In this loop we run background operations when the server
|
||||
is quiet */
|
||||
|
||||
current_time = time(NULL);
|
||||
|
||||
if (difftime(current_time, last_monitor_time) > 15) {
|
||||
|
||||
last_monitor_time = time(NULL);
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
|
||||
printf("=====================================\n");
|
||||
ut_print_timestamp(stdout);
|
||||
|
||||
printf(" INNODB MONITOR OUTPUT\n"
|
||||
"=====================================\n");
|
||||
printf("------------\n"
|
||||
"TRANSACTIONS\n"
|
||||
"------------\n");
|
||||
lock_print_info();
|
||||
printf("-----------------------------------------------\n"
|
||||
"CURRENT SEMAPHORES RESERVED AND SEMAPHORE WAITS\n"
|
||||
"-----------------------------------------------\n");
|
||||
sync_print();
|
||||
printf("CURRENT PENDING FILE I/O'S\n"
|
||||
"--------------------------\n");
|
||||
os_aio_print();
|
||||
printf("-----------\n"
|
||||
"BUFFER POOL\n"
|
||||
"-----------\n");
|
||||
buf_print_io();
|
||||
printf("--------------\n"
|
||||
"ROW OPERATIONS\n"
|
||||
"--------------\n");
|
||||
printf(
|
||||
"Number of rows inserted %lu, updated %lu, deleted %lu, read %lu\n",
|
||||
srv_n_rows_inserted,
|
||||
srv_n_rows_updated,
|
||||
srv_n_rows_deleted,
|
||||
srv_n_rows_read);
|
||||
printf("Server activity counter %lu\n", srv_activity_count);
|
||||
printf("----------------------------\n"
|
||||
"END OF INNODB MONITOR OUTPUT\n"
|
||||
"============================\n");
|
||||
}
|
||||
|
||||
if (srv_print_innodb_tablespace_monitor) {
|
||||
|
||||
printf("================================================\n");
|
||||
|
||||
ut_print_timestamp(stdout);
|
||||
|
||||
printf(" INNODB TABLESPACE MONITOR OUTPUT\n"
|
||||
"================================================\n");
|
||||
|
||||
fsp_print(0);
|
||||
fprintf(stderr, "Validating tablespace\n");
|
||||
fsp_validate(0);
|
||||
fprintf(stderr, "Validation ok\n");
|
||||
printf("---------------------------------------\n"
|
||||
"END OF INNODB TABLESPACE MONITOR OUTPUT\n"
|
||||
"=======================================\n");
|
||||
}
|
||||
}
|
||||
srv_main_thread_op_info = "reserving kernel mutex";
|
||||
|
||||
mutex_enter(&kernel_mutex);
|
||||
if (srv_activity_count != old_activity_count) {
|
||||
@ -2014,17 +2184,11 @@ background_loop:
|
||||
/* The server has been quiet for a while: start running background
|
||||
operations */
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB starts purge\n");
|
||||
}
|
||||
srv_main_thread_op_info = "purging";
|
||||
|
||||
n_pages_purged = trx_purge();
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB purged %lu pages\n", n_pages_purged);
|
||||
}
|
||||
srv_main_thread_op_info = "reserving kernel mutex";
|
||||
|
||||
mutex_enter(&kernel_mutex);
|
||||
if (srv_activity_count != old_activity_count) {
|
||||
@ -2033,17 +2197,10 @@ background_loop:
|
||||
}
|
||||
mutex_exit(&kernel_mutex);
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB starts insert buffer merge\n");
|
||||
}
|
||||
srv_main_thread_op_info = "doing insert buffer merge";
|
||||
n_bytes_merged = ibuf_contract_for_n_pages(TRUE, 20);
|
||||
|
||||
n_bytes_merged = ibuf_contract(TRUE);
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB merged %lu bytes\n", n_bytes_merged);
|
||||
}
|
||||
srv_main_thread_op_info = "reserving kernel mutex";
|
||||
|
||||
mutex_enter(&kernel_mutex);
|
||||
if (srv_activity_count != old_activity_count) {
|
||||
@ -2052,17 +2209,10 @@ background_loop:
|
||||
}
|
||||
mutex_exit(&kernel_mutex);
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB (main thread) starts buffer pool flush\n");
|
||||
}
|
||||
|
||||
srv_main_thread_op_info = "flushing buffer pool pages";
|
||||
n_pages_flushed = buf_flush_batch(BUF_FLUSH_LIST, 100, ut_dulint_max);
|
||||
|
||||
if (srv_print_innodb_monitor) {
|
||||
ut_print_timestamp(stdout);
|
||||
printf(" InnoDB flushed %lu pages\n", n_pages_flushed);
|
||||
}
|
||||
srv_main_thread_op_info = "reserving kernel mutex";
|
||||
|
||||
mutex_enter(&kernel_mutex);
|
||||
if (srv_activity_count != old_activity_count) {
|
||||
@ -2071,16 +2221,23 @@ background_loop:
|
||||
}
|
||||
mutex_exit(&kernel_mutex);
|
||||
|
||||
srv_main_thread_op_info = "waiting for buffer pool flush to end";
|
||||
buf_flush_wait_batch_end(BUF_FLUSH_LIST);
|
||||
|
||||
srv_main_thread_op_info = "making checkpoint";
|
||||
|
||||
log_checkpoint(TRUE, FALSE);
|
||||
|
||||
srv_main_thread_op_info = "reserving kernel mutex";
|
||||
|
||||
mutex_enter(&kernel_mutex);
|
||||
if (srv_activity_count != old_activity_count) {
|
||||
mutex_exit(&kernel_mutex);
|
||||
goto loop;
|
||||
}
|
||||
mutex_exit(&kernel_mutex);
|
||||
|
||||
srv_main_thread_op_info = "archiving log (if log archive is on)";
|
||||
|
||||
log_archive_do(FALSE, &n_bytes_archived);
|
||||
|
||||
@ -2098,12 +2255,16 @@ background_loop:
|
||||
/* There is no work for background operations either: suspend
|
||||
master thread to wait for more server activity */
|
||||
|
||||
srv_main_thread_op_info = "suspending";
|
||||
|
||||
mutex_enter(&kernel_mutex);
|
||||
|
||||
event = srv_suspend_thread();
|
||||
|
||||
mutex_exit(&kernel_mutex);
|
||||
|
||||
srv_main_thread_op_info = "waiting for server activity";
|
||||
|
||||
os_event_wait(event);
|
||||
|
||||
goto loop;
|
||||
|
||||
Reference in New Issue
Block a user