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0f8e17af92
Port a bug fix from MySQL 5.7, so that all undo log pages will be freed
during a slow shutdown. We cannot scrub pages that are left allocated.
commit 173e171c6fb55f064eea278c76fbb28e2b1c757b
Author: Thirunarayanan Balathandayuthapani <thirunarayanan.balathandayuth@oracle.com>
Date: Fri Sep 9 18:01:27 2016 +0530
Bug #24450908 UNDO LOG EXISTS AFTER SLOW SHUTDOWN
Problem:
========
1) cached undo segment is not removed from rollback segment history
(RSEG_HISTORY) during slow shutdown. In other words, If the segment is
not completely free, we are failing to remove an entry from the history
list. While starting the server, we traverse all rollback segment slots
history list and make it as list of undo logs to be purged in purge
queue.
In that case, purge queue will never be empty after slow shutdown.
2) Freeing of undo log segment is linked with removing undo log header
from history.
Fix:
====
1) Have separate logic of removing the undo log header from
history list from rollback segment slots and remove it from
rollback segment history even though it is not completely free.
Reviewed-by: Debarun Banerjee <debarun.banerjee@oracle.com>
Reviewed-by: Marko Mäkelä <marko.makela@oracle.com>
RB:13672
192 lines
6.2 KiB
C
192 lines
6.2 KiB
C
/*****************************************************************************
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Copyright (c) 1995, 2009, Oracle and/or its affiliates. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
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*****************************************************************************/
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/******************************************************************//**
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@file include/fut0lst.h
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File-based list utilities
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Created 11/28/1995 Heikki Tuuri
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***********************************************************************/
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#ifndef fut0lst_h
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#define fut0lst_h
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#include "univ.i"
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#include "fil0fil.h"
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#include "mtr0mtr.h"
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/* The C 'types' of base node and list node: these should be used to
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write self-documenting code. Of course, the sizeof macro cannot be
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applied to these types! */
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typedef byte flst_base_node_t;
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typedef byte flst_node_t;
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/* The physical size of a list base node in bytes */
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#define FLST_BASE_NODE_SIZE (4 + 2 * FIL_ADDR_SIZE)
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/* The physical size of a list node in bytes */
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#define FLST_NODE_SIZE (2 * FIL_ADDR_SIZE)
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#ifndef UNIV_HOTBACKUP
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/********************************************************************//**
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Initializes a list base node. */
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UNIV_INLINE
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void
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flst_init(
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/*======*/
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flst_base_node_t* base, /*!< in: pointer to base node */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Adds a node as the last node in a list. */
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UNIV_INTERN
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void
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flst_add_last(
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/*==========*/
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flst_base_node_t* base, /*!< in: pointer to base node of list */
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flst_node_t* node, /*!< in: node to add */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Adds a node as the first node in a list. */
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UNIV_INTERN
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void
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flst_add_first(
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/*===========*/
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flst_base_node_t* base, /*!< in: pointer to base node of list */
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flst_node_t* node, /*!< in: node to add */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Inserts a node after another in a list. */
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UNIV_INTERN
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void
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flst_insert_after(
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/*==============*/
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flst_base_node_t* base, /*!< in: pointer to base node of list */
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flst_node_t* node1, /*!< in: node to insert after */
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flst_node_t* node2, /*!< in: node to add */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Inserts a node before another in a list. */
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UNIV_INTERN
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void
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flst_insert_before(
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/*===============*/
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flst_base_node_t* base, /*!< in: pointer to base node of list */
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flst_node_t* node2, /*!< in: node to insert */
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flst_node_t* node3, /*!< in: node to insert before */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Removes a node. */
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UNIV_INTERN
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void
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flst_remove(
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/*========*/
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flst_base_node_t* base, /*!< in: pointer to base node of list */
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flst_node_t* node2, /*!< in: node to remove */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Gets list length.
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@return length */
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UNIV_INLINE
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ulint
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flst_get_len(
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/*=========*/
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const flst_base_node_t* base, /*!< in: pointer to base node */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Gets list first node address.
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@return file address */
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UNIV_INLINE
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fil_addr_t
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flst_get_first(
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/*===========*/
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const flst_base_node_t* base, /*!< in: pointer to base node */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Gets list last node address.
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@return file address */
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UNIV_INLINE
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fil_addr_t
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flst_get_last(
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/*==========*/
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const flst_base_node_t* base, /*!< in: pointer to base node */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Gets list next node address.
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@return file address */
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UNIV_INLINE
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fil_addr_t
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flst_get_next_addr(
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/*===============*/
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const flst_node_t* node, /*!< in: pointer to node */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Gets list prev node address.
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@return file address */
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UNIV_INLINE
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fil_addr_t
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flst_get_prev_addr(
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/*===============*/
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const flst_node_t* node, /*!< in: pointer to node */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Writes a file address. */
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UNIV_INLINE
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void
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flst_write_addr(
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/*============*/
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fil_faddr_t* faddr, /*!< in: pointer to file faddress */
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fil_addr_t addr, /*!< in: file address */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Reads a file address.
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@return file address */
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UNIV_INLINE
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fil_addr_t
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flst_read_addr(
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/*===========*/
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const fil_faddr_t* faddr, /*!< in: pointer to file faddress */
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mtr_t* mtr); /*!< in: mini-transaction handle */
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/********************************************************************//**
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Validates a file-based list.
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@return TRUE if ok */
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UNIV_INTERN
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ibool
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flst_validate(
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/*==========*/
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const flst_base_node_t* base, /*!< in: pointer to base node of list */
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mtr_t* mtr1); /*!< in: mtr */
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/********************************************************************//**
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Prints info of a file-based list. */
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UNIV_INTERN
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void
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flst_print(
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/*=======*/
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const flst_base_node_t* base, /*!< in: pointer to base node of list */
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mtr_t* mtr); /*!< in: mtr */
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#ifndef UNIV_NONINL
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#include "fut0lst.ic"
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#endif
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#endif /* !UNIV_HOTBACKUP */
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#endif
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