diff options
Diffstat (limited to 'storage/innobase/srv/srv0srv.cc')
| -rw-r--r-- | storage/innobase/srv/srv0srv.cc | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/storage/innobase/srv/srv0srv.cc b/storage/innobase/srv/srv0srv.cc index cd3bed9e2fe..89dadf9f08c 100644 --- a/storage/innobase/srv/srv0srv.cc +++ b/storage/innobase/srv/srv0srv.cc @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 1995, 2014, Oracle and/or its affiliates. All Rights Reserved. +Copyright (c) 1995, 2015, Oracle and/or its affiliates. All Rights Reserved. Copyright (c) 2008, 2009 Google Inc. Copyright (c) 2009, Percona Inc. Copyright (c) 2013, 2014, SkySQL Ab. All Rights Reserved. @@ -127,6 +127,9 @@ UNIV_INTERN ulint srv_file_format = 0; UNIV_FORMAT_MAX + 1 means no checking ie. FALSE. The default is to set it to the highest format we support. */ UNIV_INTERN ulint srv_max_file_format_at_startup = UNIV_FORMAT_MAX; +/** Set if InnoDB operates in read-only mode or innodb-force-recovery +is greater than SRV_FORCE_NO_TRX_UNDO. */ +UNIV_INTERN my_bool high_level_read_only; #if UNIV_FORMAT_A # error "UNIV_FORMAT_A must be 0!" @@ -145,6 +148,7 @@ OS (provided we compiled Innobase with it in), otherwise we will use simulated aio we build below with threads. Currently we support native aio on windows and linux */ UNIV_INTERN my_bool srv_use_native_aio = TRUE; +UNIV_INTERN my_bool srv_numa_interleave = FALSE; #ifdef __WIN__ /* Windows native condition variables. We use runtime loading / function @@ -2647,13 +2651,8 @@ srv_do_purge( } n_pages_purged = trx_purge( - n_use_threads, srv_purge_batch_size, false); - - if (!(count++ % TRX_SYS_N_RSEGS)) { - /* Force a truncate of the history list. */ - n_pages_purged += trx_purge( - 1, srv_purge_batch_size, true); - } + n_use_threads, srv_purge_batch_size, + (++count % TRX_SYS_N_RSEGS) == 0); *n_total_purged += n_pages_purged; @@ -2846,8 +2845,17 @@ DECLARE_THREAD(srv_purge_coordinator_thread)( n_pages_purged = trx_purge(1, srv_purge_batch_size, false); } - /* Force a truncate of the history list. */ - n_pages_purged = trx_purge(1, srv_purge_batch_size, true); + /* This trx_purge is called to remove any undo records (added by + background threads) after completion of the above loop. When + srv_fast_shutdown != 0, a large batch size can cause significant + delay in shutdown ,so reducing the batch size to magic number 20 + (which was default in 5.5), which we hope will be sufficient to + remove all the undo records */ + const uint temp_batch_size = 20; + + n_pages_purged = trx_purge(1, srv_purge_batch_size <= temp_batch_size + ? srv_purge_batch_size : temp_batch_size, + true); ut_a(n_pages_purged == 0 || srv_fast_shutdown != 0); /* The task queue should always be empty, independent of fast |