diff options
Diffstat (limited to 'storage/innobase/srv/srv0srv.c')
| -rw-r--r-- | storage/innobase/srv/srv0srv.c | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/storage/innobase/srv/srv0srv.c b/storage/innobase/srv/srv0srv.c index c0b2f6cb700..86caf9d4243 100644 --- a/storage/innobase/srv/srv0srv.c +++ b/storage/innobase/srv/srv0srv.c @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 1995, 2012, Oracle and/or its affiliates. All Rights Reserved. +Copyright (c) 1995, 2013, Oracle and/or its affiliates. All Rights Reserved. Copyright (c) 2008, 2009 Google Inc. Copyright (c) 2009, Percona Inc. @@ -279,7 +279,7 @@ UNIV_INTERN ulint srv_data_read = 0; /* Internal setting for "innodb_stats_method". Decides how InnoDB treats NULL value when collecting statistics. By default, it is set to SRV_STATS_NULLS_EQUAL(0), ie. all NULL value are treated equal */ -ulong srv_innodb_stats_method = SRV_STATS_NULLS_EQUAL; +UNIV_INTERN ulong srv_innodb_stats_method = SRV_STATS_NULLS_EQUAL; /* here we count the amount of data written in total (in bytes) */ UNIV_INTERN ulint srv_data_written = 0; @@ -2109,19 +2109,31 @@ srv_export_innodb_status(void) export_vars.innodb_truncated_status_writes = srv_truncated_status_writes; #ifdef UNIV_DEBUG - if (trx_sys->max_trx_id < purge_sys->done_trx_no) { - export_vars.innodb_purge_trx_id_age = 0; - } else { - export_vars.innodb_purge_trx_id_age = - trx_sys->max_trx_id - purge_sys->done_trx_no; - } + { + trx_id_t done_trx_no; + trx_id_t up_limit_id; + + rw_lock_s_lock(&purge_sys->latch); + done_trx_no = purge_sys->done_trx_no; + up_limit_id = purge_sys->view + ? purge_sys->view->up_limit_id + : 0; + rw_lock_s_unlock(&purge_sys->latch); + + if (trx_sys->max_trx_id < done_trx_no) { + export_vars.innodb_purge_trx_id_age = 0; + } else { + export_vars.innodb_purge_trx_id_age = + trx_sys->max_trx_id - done_trx_no; + } - if (!purge_sys->view - || trx_sys->max_trx_id < purge_sys->view->up_limit_id) { - export_vars.innodb_purge_view_trx_id_age = 0; - } else { - export_vars.innodb_purge_view_trx_id_age = - trx_sys->max_trx_id - purge_sys->view->up_limit_id; + if (!up_limit_id + || trx_sys->max_trx_id < up_limit_id) { + export_vars.innodb_purge_view_trx_id_age = 0; + } else { + export_vars.innodb_purge_view_trx_id_age = + trx_sys->max_trx_id - up_limit_id; + } } #endif /* UNIV_DEBUG */ |