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- BUG#1608883: KILLING A QUERY INSIDE INNODB CAUSES IT TO EVENTUALLY CRASH

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WITH AN ASSERTION

  Recently we added check to handle kill query signal for long operating
  queries. 
  While the query interruption is reported it must to ensure cursor is restore
  to proper state for HANDLER interface to work correctly. 
  Normal select query will not face this problem, as on recieving interrupt,
  select query is aborted and new select query result in re-initialization
  (including cursor).

  rb://1836. Approved by Marko.
This commit is contained in:
Krunal Bauskar krunal.bauskar@oracle.com 2013-01-14 10:49:51 +05:30
parent 3d9d0e7766
commit e47f3943f9
3 changed files with 14 additions and 1 deletions
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4
storage/innobase/row/row0sel.c
View file

@ -33,6 +33,8 @@ Created 12/19/1997 Heikki Tuuri
#include "read0read.h"
#include "buf0lru.h"
#include "ha_prototypes.h"
#include "m_string.h" /* for my_sys.h */
#include "my_sys.h" /* DEBUG_SYNC_C */
/* Maximum number of rows to prefetch; MySQL interface has another parameter */
#define SEL_MAX_N_PREFETCH 16
@ -3758,7 +3760,9 @@ wait_table_again:
}
rec_loop:
DEBUG_SYNC_C("row_search_rec_loop");
if (trx_is_interrupted(trx)) {
btr_pcur_store_position(pcur, &mtr);
err = DB_INTERRUPTED;
goto normal_return;
}

5
storage/innodb_plugin/ChangeLog
View file

@ -1,3 +1,8 @@
2013-01-11 The InnoDB Team
* row/row0sel.c:
Fix Bug#16088883 KILLING A QUERY INSIDE INNODB CAUSES IT TO
EVENTUALLY CRASH WITH AN ASSERTION
2012-12-18 The InnoDB Team
* include/univ.i:

6
storage/innodb_plugin/row/row0sel.c
View file

@ -1,6 +1,6 @@
/*****************************************************************************
Copyright (c) 1997, 2011, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 1997, 2013, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2008, Google Inc.
Portions of this file contain modifications contributed and copyrighted by
@ -57,6 +57,8 @@ Created 12/19/1997 Heikki Tuuri
#include "read0read.h"
#include "buf0lru.h"
#include "ha_prototypes.h"
#include "m_string.h" /* for my_sys.h */
#include "my_sys.h" /* DEBUG_SYNC_C */
/* Maximum number of rows to prefetch; MySQL interface has another parameter */
#define SEL_MAX_N_PREFETCH 16
@ -3908,7 +3910,9 @@ wait_table_again:
}
rec_loop:
DEBUG_SYNC_C("row_search_rec_loop");
if (trx_is_interrupted(trx)) {
btr_pcur_store_position(pcur, &mtr);
err = DB_INTERRUPTED;
goto normal_return;
}