diff options
Diffstat (limited to 'storage/innodb_plugin/btr/btr0btr.c')
| -rw-r--r-- | storage/innodb_plugin/btr/btr0btr.c | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/storage/innodb_plugin/btr/btr0btr.c b/storage/innodb_plugin/btr/btr0btr.c index 6ba9b36207b..086b3a0a599 100644 --- a/storage/innodb_plugin/btr/btr0btr.c +++ b/storage/innodb_plugin/btr/btr0btr.c @@ -790,14 +790,21 @@ btr_create( } else { /* It is a non-ibuf tree: create a file segment for leaf pages */ - fseg_create(space, page_no, - PAGE_HEADER + PAGE_BTR_SEG_LEAF, mtr); + if (!fseg_create(space, page_no, + PAGE_HEADER + PAGE_BTR_SEG_LEAF, mtr)) { + /* Not enough space for new segment, free root + segment before return. */ + btr_free_root(space, zip_size, page_no, mtr); + + return(FIL_NULL); + } + /* The fseg create acquires a second latch on the page, therefore we must declare it: */ buf_block_dbg_add_level(block, SYNC_TREE_NODE_NEW); } - /* Create a new index page on the the allocated segment page */ + /* Create a new index page on the allocated segment page */ page_zip = buf_block_get_page_zip(block); if (UNIV_LIKELY_NULL(page_zip)) { @@ -1011,7 +1018,26 @@ btr_page_reorganize_low( (!page_zip_compress(page_zip, page, index, NULL))) { /* Restore the old page and exit. */ - buf_frame_copy(page, temp_page); + +#if defined UNIV_DEBUG || defined UNIV_ZIP_DEBUG + /* Check that the bytes that we skip are identical. */ + ut_a(!memcmp(page, temp_page, PAGE_HEADER)); + ut_a(!memcmp(PAGE_HEADER + PAGE_N_RECS + page, + PAGE_HEADER + PAGE_N_RECS + temp_page, + PAGE_DATA - (PAGE_HEADER + PAGE_N_RECS))); + ut_a(!memcmp(UNIV_PAGE_SIZE - FIL_PAGE_DATA_END + page, + UNIV_PAGE_SIZE - FIL_PAGE_DATA_END + temp_page, + FIL_PAGE_DATA_END)); +#endif /* UNIV_DEBUG || UNIV_ZIP_DEBUG */ + + memcpy(PAGE_HEADER + page, PAGE_HEADER + temp_page, + PAGE_N_RECS - PAGE_N_DIR_SLOTS); + memcpy(PAGE_DATA + page, PAGE_DATA + temp_page, + UNIV_PAGE_SIZE - PAGE_DATA - FIL_PAGE_DATA_END); + +#if defined UNIV_DEBUG || defined UNIV_ZIP_DEBUG + ut_a(!memcmp(page, temp_page, UNIV_PAGE_SIZE)); +#endif /* UNIV_DEBUG || UNIV_ZIP_DEBUG */ goto func_exit; } @@ -1902,7 +1928,7 @@ func_start: n_uniq, &heap); /* If the new record is less than the existing record - the the split in the middle will copy the existing + the split in the middle will copy the existing record to the new node. */ if (cmp_dtuple_rec(tuple, first_rec, offsets) < 0) { split_rec = page_get_middle_rec(page); |