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Viewing changes to storage/innobase/srv/srv0srv.c

  • Committer: Package Import Robot
  • Author(s): Seth Arnold
  • Date: 2013-04-18 18:15:39 UTC
  • mfrom: (1.1.12)
  • Revision ID: package-import@ubuntu.com-20130418181539-7uo1w041b4h2ulbs
Tags: 5.5.31-0ubuntu0.12.10.1
https://launchpad.net/bugs/1170516
* SECURITY UPDATE: Update to 5.5.31 to fix security issues (LP: #1170516)
  - http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
* debian/patches/71_disable_rpl_tests.patch: refreshed.
* debian/patches/fix-mysqldump-test.patch: removed, fixed differently
  upstream

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storage/innobase/srv/srv0srv.c
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/*****************************************************************************
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Copyright (c) 1995, 2012, Oracle and/or its affiliates. All Rights Reserved.
 
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Copyright (c) 1995, 2013, Oracle and/or its affiliates. All Rights Reserved.
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Copyright (c) 2008, 2009 Google Inc.
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Copyright (c) 2009, Percona Inc.
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*******************************************************/
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/* Dummy comment */
 
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#include "m_string.h" /* for my_sys.h */
 
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#include "my_sys.h" /* DEBUG_SYNC_C */
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#include "srv0srv.h"
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#include "ut0mem.h"
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#include "ha_prototypes.h"
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#include "trx0i_s.h"
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#include "os0sync.h" /* for HAVE_ATOMIC_BUILTINS */
 
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#include "read0read.h"
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#include "mysql/plugin.h"
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#include "mysql/service_thd_wait.h"
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/* Internal setting for "innodb_stats_method". Decides how InnoDB treats
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NULL value when collecting statistics. By default, it is set to
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SRV_STATS_NULLS_EQUAL(0), ie. all NULL value are treated equal */
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ulong srv_innodb_stats_method = SRV_STATS_NULLS_EQUAL;
 
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UNIV_INTERN ulong srv_innodb_stats_method = SRV_STATS_NULLS_EQUAL;
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/* here we count the amount of data written in total (in bytes) */
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UNIV_INTERN ulint srv_data_written = 0;
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InnoDB */
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UNIV_INTERN ulint       srv_conc_n_waiting_threads = 0;
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/* print all user-level transactions deadlocks to mysqld stderr */
 
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UNIV_INTERN my_bool     srv_print_all_deadlocks = FALSE;
 
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typedef struct srv_conc_slot_struct     srv_conc_slot_t;
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struct srv_conc_slot_struct{
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        os_event_t                      event;          /*!< event to wait */
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        trx = thr_get_trx(thr);
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        if (trx->mysql_thd != 0) {
 
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                DEBUG_SYNC_C("srv_suspend_mysql_thread_enter");
 
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        }
 
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        os_event_set(srv_lock_timeout_thread_event);
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        mutex_enter(&kernel_mutex);
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srv_export_innodb_status(void)
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/*==========================*/
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{
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        buf_pool_stat_t stat;
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        ulint           LRU_len;
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        ulint           free_len;
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        ulint           flush_list_len;
 
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        buf_pool_stat_t         stat;
 
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        buf_pools_list_size_t   buf_pools_list_size;
 
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        ulint                   LRU_len;
 
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        ulint                   free_len;
 
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        ulint                   flush_list_len;
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        buf_get_total_stat(&stat);
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        buf_get_total_list_len(&LRU_len, &free_len, &flush_list_len);
 
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        buf_get_total_list_size_in_bytes(&buf_pools_list_size);
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        mutex_enter(&srv_innodb_monitor_mutex);
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        export_vars.innodb_buffer_pool_read_ahead_evicted
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                = stat.n_ra_pages_evicted;
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        export_vars.innodb_buffer_pool_pages_data = LRU_len;
 
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        export_vars.innodb_buffer_pool_bytes_data =
 
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                buf_pools_list_size.LRU_bytes
 
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                + buf_pools_list_size.unzip_LRU_bytes;
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        export_vars.innodb_buffer_pool_pages_dirty = flush_list_len;
 
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        export_vars.innodb_buffer_pool_bytes_dirty =
 
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                buf_pools_list_size.flush_list_bytes;
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        export_vars.innodb_buffer_pool_pages_free = free_len;
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#ifdef UNIV_DEBUG
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        export_vars.innodb_buffer_pool_pages_latched
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        export_vars.innodb_rows_deleted = srv_n_rows_deleted;
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        export_vars.innodb_truncated_status_writes = srv_truncated_status_writes;
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#ifdef UNIV_DEBUG
 
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        {
 
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                trx_id_t        done_trx_no;
 
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                trx_id_t        up_limit_id;
 
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                rw_lock_s_lock(&purge_sys->latch);
 
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                done_trx_no     = purge_sys->done_trx_no;
 
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                up_limit_id     = purge_sys->view
 
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                        ? purge_sys->view->up_limit_id
 
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                        : 0;
 
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                rw_lock_s_unlock(&purge_sys->latch);
 
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                if (trx_sys->max_trx_id < done_trx_no) {
 
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                        export_vars.innodb_purge_trx_id_age = 0;
 
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                } else {
 
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                        export_vars.innodb_purge_trx_id_age =
 
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                                trx_sys->max_trx_id - done_trx_no;
 
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                }
 
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                if (!up_limit_id
 
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                    || trx_sys->max_trx_id < up_limit_id) {
 
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                        export_vars.innodb_purge_view_trx_id_age = 0;
 
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                } else {
 
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                        export_vars.innodb_purge_view_trx_id_age =
 
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                                trx_sys->max_trx_id - up_limit_id;
 
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                }
 
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        }
 
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#endif /* UNIV_DEBUG */
 
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        mutex_exit(&srv_innodb_monitor_mutex);
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}
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        for (i = 0; i < 10; i++) {
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                ulint   cur_time = ut_time_ms();
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#ifdef UNIV_DEBUG
 
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                if (btr_cur_limit_optimistic_insert_debug
 
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                    && srv_n_purge_threads == 0) {
 
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                        /* If btr_cur_limit_optimistic_insert_debug is enabled
 
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                        and no purge_threads, purge opportunity is increased
 
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                        by x100 (1purge/100msec), to speed up debug scripts
 
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                        which should wait for purged. */
 
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                        next_itr_time -= 900;
 
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                        srv_main_thread_op_info = "master purging";
 
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                        srv_master_do_purge();
 
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                        if (srv_fast_shutdown && srv_shutdown_state > 0) {
 
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                                goto background_loop;
 
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                        }
 
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                }
 
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#endif /* UNIV_DEBUG */
 
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                /* ALTER TABLE in MySQL requires on Unix that the table handler
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                can drop tables lazily after there no longer are SELECT
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                queries to them. */