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-rw-r--r--storage/innobase/log/log0recv.cc162
1 files changed, 125 insertions, 37 deletions
diff --git a/storage/innobase/log/log0recv.cc b/storage/innobase/log/log0recv.cc
index 3c3fe41e..e72f842f 100644
--- a/storage/innobase/log/log0recv.cc
+++ b/storage/innobase/log/log0recv.cc
@@ -833,7 +833,22 @@ processed:
filename= tbl_name + 1;
}
}
- space->add(filename, OS_FILE_CLOSED, size, false, false);
+ pfs_os_file_t handle= OS_FILE_CLOSED;
+ if (srv_operation == SRV_OPERATION_RESTORE)
+ {
+ /* During mariadb-backup --backup, a table could be renamed,
+ created and dropped, and we may be missing the file at this
+ point of --prepare. Try to create the file if it does not exist
+ already. If the file exists, we'll pass handle=OS_FILE_CLOSED
+ and the file will be opened normally in fil_space_t::acquire()
+ inside recv_sys_t::recover_deferred(). */
+ bool success;
+ handle= os_file_create(innodb_data_file_key, filename,
+ OS_FILE_CREATE | OS_FILE_ON_ERROR_NO_EXIT |
+ OS_FILE_ON_ERROR_SILENT,
+ OS_FILE_AIO, OS_DATA_FILE, false, &success);
+ }
+ space->add(filename, handle, size, false, false);
space->recv_size= it->second.size;
space->size_in_header= size;
return space;
@@ -1238,7 +1253,8 @@ static void fil_name_process(const char *name, ulint len, uint32_t space_id,
file_name_t& f = p.first->second;
- if (auto d = deferred_spaces.find(space_id)) {
+ auto d = deferred_spaces.find(space_id);
+ if (d) {
if (deleted) {
d->deleted = true;
goto got_deleted;
@@ -1311,7 +1327,16 @@ same_space:
FILE_* record. */
ut_ad(space == NULL);
- if (srv_force_recovery) {
+ if (srv_operation == SRV_OPERATION_RESTORE && d
+ && ftype == FILE_RENAME) {
+rename:
+ d->file_name = fname.name;
+ f.name = fname.name;
+ break;
+ }
+
+ if (srv_force_recovery
+ || srv_operation == SRV_OPERATION_RESTORE) {
/* Without innodb_force_recovery,
missing tablespaces will only be
reported in
@@ -1330,7 +1355,11 @@ same_space:
break;
case FIL_LOAD_DEFER:
- /** Skip the deferred spaces
+ if (d && ftype == FILE_RENAME
+ && srv_operation == SRV_OPERATION_RESTORE) {
+ goto rename;
+ }
+ /* Skip the deferred spaces
when lsn is already processed */
if (!if_exists) {
deferred_spaces.add(
@@ -1735,20 +1764,6 @@ dberr_t recv_sys_t::find_checkpoint()
{
if (wrong_size)
return DB_CORRUPTION;
- if (log_sys.next_checkpoint_lsn < 8204)
- {
- /* Before MDEV-14425, InnoDB had a minimum LSN of 8192+12=8204.
- Likewise, mariadb-backup --prepare would create an empty
- ib_logfile0 after applying the log. We will allow an upgrade
- from such an empty log.
-
- If a user replaces the redo log with an empty file and the
- FIL_PAGE_FILE_FLUSH_LSN field was zero in the system
- tablespace (see SysTablespace::read_lsn_and_check_flags()) we
- must refuse to start up. */
- sql_print_error("InnoDB: ib_logfile0 is empty, and LSN is unknown.");
- return DB_CORRUPTION;
- }
lsn= log_sys.next_checkpoint_lsn;
log_sys.format= log_t::FORMAT_3_23;
goto upgrade;
@@ -2409,7 +2424,7 @@ struct recv_ring : public recv_buf
{
const size_t s(*this - start);
ut_ad(s + len <= srv_page_size);
- if (!log_sys.is_encrypted())
+ if (!len || !log_sys.is_encrypted())
{
if (start.ptr + s == ptr && ptr + len <= end())
return ptr;
@@ -3205,7 +3220,7 @@ static buf_block_t *recv_recover_page(buf_block_t *block, mtr_t &mtr,
skipped_after_init = false;
ut_ad(end_lsn == page_lsn);
if (end_lsn != page_lsn) {
- sql_print_warning(
+ sql_print_information(
"InnoDB: The last skipped log record"
" LSN " LSN_PF
" is not equal to page LSN " LSN_PF,
@@ -4012,7 +4027,6 @@ static bool recv_scan_log(bool last_phase)
const size_t block_size_1{log_sys.get_block_size() - 1};
mysql_mutex_lock(&recv_sys.mutex);
- ut_d(recv_sys.after_apply= last_phase);
if (!last_phase)
recv_sys.clear();
else
@@ -4221,6 +4235,7 @@ static bool recv_scan_log(bool last_phase)
recv_sys.lsn= rewound_lsn;
}
func_exit:
+ ut_d(recv_sys.after_apply= last_phase);
mysql_mutex_unlock(&recv_sys.mutex);
DBUG_RETURN(!store);
}
@@ -4507,12 +4522,36 @@ done:
return err;
}
+dberr_t recv_recovery_read_checkpoint()
+{
+ ut_ad(srv_operation <= SRV_OPERATION_EXPORT_RESTORED ||
+ srv_operation == SRV_OPERATION_RESTORE ||
+ srv_operation == SRV_OPERATION_RESTORE_EXPORT);
+ ut_d(mysql_mutex_lock(&buf_pool.mutex));
+ ut_ad(UT_LIST_GET_LEN(buf_pool.LRU) == 0);
+ ut_ad(UT_LIST_GET_LEN(buf_pool.unzip_LRU) == 0);
+ ut_d(mysql_mutex_unlock(&buf_pool.mutex));
+
+ if (srv_force_recovery >= SRV_FORCE_NO_LOG_REDO)
+ {
+ sql_print_information("InnoDB: innodb_force_recovery=6"
+ " skips redo log apply");
+ return DB_SUCCESS;
+ }
+
+ log_sys.latch.wr_lock(SRW_LOCK_CALL);
+ dberr_t err= recv_sys.find_checkpoint();
+ log_sys.latch.wr_unlock();
+ return err;
+}
+
/** Start recovering from a redo log checkpoint.
of first system tablespace page
@return error code or DB_SUCCESS */
dberr_t recv_recovery_from_checkpoint_start()
{
- bool rescan = false;
+ bool rescan = false;
+ dberr_t err = DB_SUCCESS;
ut_ad(srv_operation <= SRV_OPERATION_EXPORT_RESTORED
|| srv_operation == SRV_OPERATION_RESTORE
@@ -4525,20 +4564,12 @@ dberr_t recv_recovery_from_checkpoint_start()
if (srv_force_recovery >= SRV_FORCE_NO_LOG_REDO) {
sql_print_information("InnoDB: innodb_force_recovery=6"
" skips redo log apply");
- return(DB_SUCCESS);
+ return err;
}
recv_sys.recovery_on = true;
log_sys.latch.wr_lock(SRW_LOCK_CALL);
-
- dberr_t err = recv_sys.find_checkpoint();
- if (err != DB_SUCCESS) {
-early_exit:
- log_sys.latch.wr_unlock();
- return err;
- }
-
log_sys.set_capacity();
/* Start reading the log from the checkpoint lsn. The variable
@@ -4548,7 +4579,9 @@ early_exit:
ut_ad(recv_sys.pages.empty());
if (log_sys.format == log_t::FORMAT_3_23) {
- goto early_exit;
+early_exit:
+ log_sys.latch.wr_unlock();
+ return err;
}
if (log_sys.is_latest()) {
@@ -4843,7 +4876,7 @@ byte *recv_dblwr_t::find_page(const page_id_t page_id,
}
bool recv_dblwr_t::restore_first_page(uint32_t space_id, const char *name,
- os_file_t file)
+ pfs_os_file_t file)
{
const page_id_t page_id(space_id, 0);
const byte* page= find_page(page_id);
@@ -4851,10 +4884,10 @@ bool recv_dblwr_t::restore_first_page(uint32_t space_id, const char *name,
{
/* If the first page of the given user tablespace is not there
in the doublewrite buffer, then the recovery is going to fail
- now. Hence this is treated as error. */
- ib::error()
- << "Corrupted page " << page_id << " of datafile '"
- << name <<"' could not be found in the doublewrite buffer.";
+ now. Report error only when doublewrite buffer is not empty */
+ if (pages.size())
+ ib::error() << "Corrupted page " << page_id << " of datafile '"
+ << name << "' could not be found in the doublewrite buffer.";
return true;
}
@@ -4868,3 +4901,58 @@ bool recv_dblwr_t::restore_first_page(uint32_t space_id, const char *name,
IORequestWrite, name, file, page, 0, physical_size) !=
DB_SUCCESS;
}
+
+uint32_t recv_dblwr_t::find_first_page(const char *name, pfs_os_file_t file)
+{
+ os_offset_t file_size= os_file_get_size(file);
+ if (file_size != (os_offset_t) -1)
+ {
+ for (const page_t *page : pages)
+ {
+ uint32_t space_id= page_get_space_id(page);
+ byte *read_page= nullptr;
+ if (page_get_page_no(page) > 0 || space_id == 0)
+ {
+next_page:
+ aligned_free(read_page);
+ continue;
+ }
+ uint32_t flags= mach_read_from_4(
+ FSP_HEADER_OFFSET + FSP_SPACE_FLAGS + page);
+ page_id_t page_id(space_id, 0);
+ size_t page_size= fil_space_t::physical_size(flags);
+ if (file_size < 4 * page_size)
+ goto next_page;
+ read_page=
+ static_cast<byte*>(aligned_malloc(3 * page_size, page_size));
+ /* Read 3 pages from the file and match the space id
+ with the space id which is stored in
+ doublewrite buffer page. */
+ if (os_file_read(IORequestRead, file, read_page, page_size,
+ 3 * page_size, nullptr) != DB_SUCCESS)
+ goto next_page;
+ for (ulint j= 0; j <= 2; j++)
+ {
+ byte *cur_page= read_page + j * page_size;
+ if (buf_is_zeroes(span<const byte>(cur_page, page_size)))
+ {
+ space_id= 0;
+ goto early_exit;
+ }
+ if (mach_read_from_4(cur_page + FIL_PAGE_OFFSET) != j + 1 ||
+ memcmp(cur_page + FIL_PAGE_SPACE_ID,
+ page + FIL_PAGE_SPACE_ID, 4) ||
+ buf_page_is_corrupted(false, cur_page, flags))
+ goto next_page;
+ }
+ if (!restore_first_page(space_id, name, file))
+ {
+early_exit:
+ aligned_free(read_page);
+ return space_id;
+ }
+ break;
+ }
+ }
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 00:14:24 +0000