diff options
Diffstat (limited to 'innobase/srv/srv0srv.c')
| -rw-r--r-- | innobase/srv/srv0srv.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/innobase/srv/srv0srv.c b/innobase/srv/srv0srv.c index adffe06ef0a..d913d77fdfc 100644 --- a/innobase/srv/srv0srv.c +++ b/innobase/srv/srv0srv.c @@ -249,6 +249,10 @@ merge to completion before shutdown */ ibool srv_fast_shutdown = FALSE; +ibool srv_very_fast_shutdown = FALSE; /* if this TRUE, do not flush the + buffer pool to data files at the + shutdown; we effectively 'crash' + InnoDB */ /* Generate a innodb_status.<pid> file */ ibool srv_innodb_status = FALSE; @@ -2178,7 +2182,8 @@ loop: /*****************************************************************/ background_loop: /* ---- In this loop we run background operations when the server - is quiet from user activity */ + is quiet from user activity. Also in the case of a shutdown, we + loop here, flushing the buffer pool to the data files. */ /* The server has been quiet for a while: start running background operations */ @@ -2251,7 +2256,16 @@ background_loop: flush_loop: srv_main_thread_op_info = "flushing buffer pool pages"; - n_pages_flushed = buf_flush_batch(BUF_FLUSH_LIST, 100, ut_dulint_max); + + if (!srv_very_fast_shutdown) { + n_pages_flushed = + buf_flush_batch(BUF_FLUSH_LIST, 100, ut_dulint_max); + } else { + /* In a 'very fast' shutdown we do not flush the buffer pool + to data files: we set n_pages_flushed to 0 artificially. */ + + n_pages_flushed = 0; + } srv_main_thread_op_info = "reserving kernel mutex"; @@ -2304,7 +2318,10 @@ flush_loop: /* If we are doing a fast shutdown (= the default) we do not do purge or insert buffer merge. But we - flush the buffer pool completely to disk. */ + flush the buffer pool completely to disk. + In a 'very fast' shutdown we do not flush the buffer + pool to data files: we have set n_pages_flushed to + 0 artificially. */ goto background_loop; } |