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Remove the unused redo log record type MLOG_INIT_FILE_PAGE

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InnoDB stopped generating the MLOG_INIT_FILE_PAGE record in
MySQL 5.7.5. Starting with MySQL 5.7.9 (which was imported to
MariaDB Server 10.2.2), the InnoDB redo log format tag prevents
crash recovery from old-format redo logs.

Remove the dead code for dealing with MLOG_INIT_FILE_PAGE.
This commit is contained in:
Marko Mäkelä 2017-08-22 14:56:17 +03:00
parent 825b6a354a
commit 1621d32eac
2 changed files with 1 additions and 26 deletions
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11
storage/innobase/include/mtr0types.h
View file

@ -129,14 +129,6 @@ enum mlog_id_t {
MLOG_LSN = 28,
#endif /* UNIV_LOG_LSN_DEBUG */
/** this means that a file page is taken into use and the prior
contents of the page should be ignored: in recovery we must not
trust the lsn values stored to the file page.
Note: it's deprecated because it causes crash recovery problem
in bulk create index, and actually we don't need to reset page
lsn in recv_recover_page_func() now. */
MLOG_INIT_FILE_PAGE = 29,
/** write a string to a page */
MLOG_WRITE_STRING = 30,
@ -224,8 +216,7 @@ enum mlog_id_t {
/** create a R-tree compact page */
MLOG_COMP_PAGE_CREATE_RTREE = 58,
/** this means that a file page is taken into use.
We use it to replace MLOG_INIT_FILE_PAGE. */
/** initialize a file page */
MLOG_INIT_FILE_PAGE2 = 59,
/** Table is being truncated. (Marked only for file-per-table) */

16
storage/innobase/log/log0recv.cc
View file

@ -1400,7 +1400,6 @@ parse_log:
/* Allow anything in page_type when creating a page. */
ptr = ibuf_parse_bitmap_init(ptr, end_ptr, block, mtr);
break;
case MLOG_INIT_FILE_PAGE:
case MLOG_INIT_FILE_PAGE2:
/* Allow anything in page_type when creating a page. */
ptr = fsp_parse_init_file_page(ptr, end_ptr, block);
@ -1753,18 +1752,6 @@ recv_recover_page(bool just_read_in, buf_block_t* block)
buf = ((byte*)(recv->data)) + sizeof(recv_data_t);
}
if (recv->type == MLOG_INIT_FILE_PAGE) {
page_lsn = page_newest_lsn;
memset(FIL_PAGE_LSN + page, 0, 8);
memset(UNIV_PAGE_SIZE - FIL_PAGE_END_LSN_OLD_CHKSUM
+ page, 0, 8);
if (page_zip) {
memset(FIL_PAGE_LSN + page_zip->data, 0, 8);
}
}
/* If per-table tablespace was truncated and there exist REDO
records before truncate that are to be applied as part of
recovery (checkpoint didn't happen since truncate was done)
@ -3619,9 +3606,6 @@ get_mlog_string(mlog_id_t type)
return("MLOG_LSN");
#endif /* UNIV_LOG_LSN_DEBUG */
case MLOG_INIT_FILE_PAGE:
return("MLOG_INIT_FILE_PAGE");
case MLOG_WRITE_STRING:
return("MLOG_WRITE_STRING");