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MDEV-25018 [FATAL] InnoDB: Unable to read page (of a dropped tablespace)

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- This issue is caused by commit deadec4e689c9435e20ebb89fd8f84d3f0f90ff3
(MDEV-24569). InnoDB fails to read the change buffer bitmap page
from dropped tablespace. In ibuf_bitmap_get_map_page_func(), InnoDB
should fetch the page using BUF_GET_POSSIBLY_FREED mode. Callers of
ibuf_bitmap_get_map_page() should be adjusted in that case.
This commit is contained in:
Thirunarayanan Balathandayuthapani 2021-03-01 23:07:12 +05:30
parent 4b166ca901
commit aa4f76bed7
1 changed files with 27 additions and 24 deletions
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51
storage/innobase/ibuf/ibuf0ibuf.cc
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@ -688,19 +688,15 @@ ibuf_bitmap_get_map_page_func(
unsigned line,
mtr_t* mtr)
{
buf_block_t* block = NULL;
dberr_t err = DB_SUCCESS;
block = buf_page_get_gen(
buf_block_t* block = buf_page_get_gen(
ibuf_bitmap_page_no_calc(page_id, zip_size),
zip_size, RW_X_LATCH, NULL, BUF_GET, file, line, mtr, &err);
zip_size, RW_X_LATCH, NULL, BUF_GET_POSSIBLY_FREED,
file, line, mtr);
if (err != DB_SUCCESS) {
return NULL;
if (block) {
buf_block_dbg_add_level(block, SYNC_IBUF_BITMAP);
}
buf_block_dbg_add_level(block, SYNC_IBUF_BITMAP);
return block;
}
@ -741,9 +737,12 @@ ibuf_set_free_bits_low(
#endif /* UNIV_IBUF_DEBUG */
const page_id_t id(block->page.id());
ibuf_bitmap_page_set_bits<IBUF_BITMAP_FREE>(
ibuf_bitmap_get_map_page(id, block->zip_size(), mtr),
id, block->physical_size(), val, mtr);
if (buf_block_t* bitmap_page = ibuf_bitmap_get_map_page(
id, block->zip_size(), mtr)) {
ibuf_bitmap_page_set_bits<IBUF_BITMAP_FREE>(
bitmap_page, id, block->physical_size(),
val, mtr);
}
}
/************************************************************************//**
@ -887,10 +886,13 @@ ibuf_update_free_bits_zip(
buf_page_make_young(&block->page);
}
ibuf_bitmap_page_set_bits<IBUF_BITMAP_FREE>(
ibuf_bitmap_get_map_page(block->page.id(), block->zip_size(),
mtr),
block->page.id(), block->physical_size(), after, mtr);
if (buf_block_t* bitmap_page = ibuf_bitmap_get_map_page(
block->page.id(), block->zip_size(), mtr)) {
ibuf_bitmap_page_set_bits<IBUF_BITMAP_FREE>(
bitmap_page, block->page.id(),
block->physical_size(), after, mtr);
}
}
/**********************************************************************//**
@ -3669,14 +3671,15 @@ ibuf_insert_to_index_page_low(
"InnoDB: is now probably corrupt. Please run CHECK TABLE on\n"
"InnoDB: that table.\n", stderr);
ib::error() << "page " << block->page.id() << ", size "
<< block->physical_size() << ", bitmap bits "
<< ibuf_bitmap_page_get_bits(
ibuf_bitmap_get_map_page(block->page.id(),
block->zip_size(),
mtr)->frame,
block->page.id(), block->zip_size(),
IBUF_BITMAP_FREE, mtr);
if (buf_block_t *bitmap_page = ibuf_bitmap_get_map_page(
block->page.id(), block->zip_size(), mtr)) {
ib::error() << "page " << block->page.id() << ", size "
<< block->physical_size() << ", bitmap bits "
<< ibuf_bitmap_page_get_bits(bitmap_page->frame,
block->page.id(), block->zip_size(),
IBUF_BITMAP_FREE, mtr);
}
ib::error() << BUG_REPORT_MSG;