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Problem: ======= - There are two failures occurs for this test case: (1) set global innodb_buf_flush_list_now=1 doesn't make sure that pages are being flushed. (2) InnoDB page cleaner thread aborts while writing the checkpoint information. Problem is that When InnoDB startup aborts, InnoDB changes the shutdown state to SRV_SHUTDOWN_EXIT_THREADS. By changing the shutdown state, InnoDB doesn't advance the log_sys.lsn (avoids fil_names_clear()). After InnoDB shutdown(innodb_shutdown()) is being initiated, shutdown state again changed to SRV_SHUTDOWN_INITIATED. This leads the page cleaner thread to fail with assertion ut_ad(srv_shutdown_state > SRV_SHUTDOWN_INITIATED) in log_write_checkpoint_info() Solution: ========= (1) In order to avoid (1) failure, InnoDB can make the variable innodb_max_dirty_pages_pct_lwm, innodb_max_dirty_pages_pct to 0. Also make sure that InnoDB doesn't have any dirty pages in buffer pool by adding wait_condition. (2) Avoid changing the srv_shutdown_state to SRV_SHUTDOWN_EXIT_THREADS when the InnoDB startup aborts
94 lines
3.5 KiB
Text
94 lines
3.5 KiB
Text
#
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# Bug #17335427 INNODB CAN NOT USE THE DOUBLEWRITE BUFFER PROPERLY
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# Bug #18144349 INNODB CANNOT USE THE DOUBLEWRITE BUFFER FOR THE FIRST
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# PAGE OF SYSTEM TABLESPACE
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#
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show variables like 'innodb_doublewrite';
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Variable_name Value
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innodb_doublewrite ON
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show variables like 'innodb_fil_make_page_dirty_debug';
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Variable_name Value
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innodb_fil_make_page_dirty_debug 0
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show variables like 'innodb_saved_page_number_debug';
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Variable_name Value
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innodb_saved_page_number_debug 0
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create table t1 (f1 int primary key, f2 blob) engine=innodb stats_persistent=0;
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start transaction;
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insert into t1 values(1, repeat('#',12));
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insert into t1 values(2, repeat('+',12));
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insert into t1 values(3, repeat('/',12));
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insert into t1 values(4, repeat('-',12));
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insert into t1 values(5, repeat('.',12));
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commit work;
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# Test Begin: Test if recovery works if 1st page and 2nd page
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# of system tablespace is full of zeroes.
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SET GLOBAL innodb_fast_shutdown = 0;
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# restart: --debug_dbug=+d,ib_log_checkpoint_avoid_hard --innodb_flush_sync=0
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begin;
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insert into t1 values (6, repeat('%', 400));
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SET GLOBAL innodb_max_dirty_pages_pct_lwm=0, innodb_max_dirty_pages_pct=0;
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# Make the first page dirty for system tablespace
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set global innodb_saved_page_number_debug = 0;
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set global innodb_fil_make_page_dirty_debug = 0;
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# Make the second page dirty for system tablespace
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set global innodb_saved_page_number_debug = 1;
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set global innodb_fil_make_page_dirty_debug = 0;
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# Kill the server
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# Make the 1st page (page_no=0) and 2nd page (page_no=1)
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# of the system tablespace all zeroes.
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# restart
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FOUND 1 /InnoDB: Recovered page \[page id: space=0, page number=0\]/ in mysqld.1.err
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FOUND 1 /InnoDB: Recovered page \[page id: space=0, page number=1\]/ in mysqld.1.err
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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select f1, f2 from t1;
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f1 f2
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1 ############
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2 ++++++++++++
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3 ////////////
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4 ------------
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5 ............
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# Test End
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# ---------------------------------------------------------------
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# Test Begin: Test if recovery works if 1st page of
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# system tablespace is corrupted and 2nd page as corrupted.
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# restart: --debug_dbug=+d,ib_log_checkpoint_avoid_hard --innodb_flush_sync=0
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begin;
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insert into t1 values (6, repeat('%', 400));
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# Make the first page dirty for system tablespace
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set global innodb_saved_page_number_debug = 0;
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set global innodb_fil_make_page_dirty_debug = 0;
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# Make the second page dirty for system tablespace
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set global innodb_saved_page_number_debug = 1;
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set global innodb_fil_make_page_dirty_debug = 0;
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set global innodb_buf_flush_list_now = 1;
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# Kill the server
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# Corrupt the 1st page (page_no=0) and 2nd page of the system tablespace.
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# restart
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FOUND 2 /InnoDB: Recovered page \[page id: space=0, page number=0\]/ in mysqld.1.err
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FOUND 2 /InnoDB: Recovered page \[page id: space=0, page number=1\]/ in mysqld.1.err
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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select f1, f2 from t1;
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f1 f2
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1 ############
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2 ++++++++++++
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3 ////////////
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4 ------------
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5 ............
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drop table t1;
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# Test End
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# ---------------------------------------------------------------
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#
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# MDEV-12600 crash during install_db with innodb_page_size=32K
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# and ibdata1=3M
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#
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# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/doublewrite --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/doublewrite --innodb-undo-tablespaces=0 --innodb-data-file-path=ibdata1:1M;ibdata2:1M:autoextend
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SELECT * FROM INFORMATION_SCHEMA.ENGINES
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WHERE engine = 'innodb'
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AND support IN ('YES', 'DEFAULT', 'ENABLED');
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ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
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FOUND 1 /\[ERROR\] InnoDB: Cannot create doublewrite buffer/ in mysqld.1.err
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# restart
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