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c9b49a4be7
The issue is that two MARIA_HA instances shares the same MARIA_STATUS_INFO
object during UNION execution, so the second MARIA_HA instance state pointer
MARIA_HA::state points to the MARIA_HA::state_save of the first MARIA instance.
This happens in
thr_multi_lock(...) {
...
for (first_lock=data, pos= data+1 ; pos < end ; pos++)
{
...
if (pos[0]->lock == pos[-1]->lock && pos[0]->lock->copy_status)
(pos[0]->lock->copy_status)((*pos)->status_param,
(*first_lock)->status_param);
...
}
...
}
Usually the state is restored from ha_maria::external_lock(...):
\#0 _ma_update_status (param=0x6290000e6270) at ./storage/maria/ma_state.c:309
\#1 0x00005555577ccb15 in _ma_update_status_with_lock (info=0x6290000e6270) at ./storage/maria/ma_state.c:361
\#2 0x00005555577c7dcc in maria_lock_database (info=0x6290000e6270, lock_type=2) at ./storage/maria/ma_locking.c:66
\#3 0x0000555557802ccd in ha_maria::external_lock (this=0x61d0001b1308, thd=0x62a000048270, lock_type=2) at ./storage/maria/ha_maria.cc:2727
But _ma_update_status() does not take into account the case when
MARIA_HA::status points to the MARIA_HA::state_save of the other MARIA_HA
instance.
The fix is to restore MARIA_HA::state in ha_maria::external_lock() after
maria_lock_database() call for transactional tables.
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|---|---|---|
| .. | ||
| unittest | ||
| CMakeLists.txt | ||
| file_formats.txt | ||
| ft_maria.c | ||
| ha_maria.cc | ||
| ha_maria.h | ||
| lockman.c | ||
| lockman.h | ||
| ma_bitmap.c | ||
| ma_blockrec.c | ||
| ma_blockrec.h | ||
| ma_cache.c | ||
| ma_changed.c | ||
| ma_check.c | ||
| ma_check_standalone.h | ||
| ma_checkpoint.c | ||
| ma_checkpoint.h | ||
| ma_checksum.c | ||
| ma_close.c | ||
| ma_commit.c | ||
| ma_commit.h | ||
| ma_control_file.c | ||
| ma_control_file.h | ||
| ma_create.c | ||
| ma_crypt.c | ||
| ma_crypt.h | ||
| ma_dbug.c | ||
| ma_delete.c | ||
| ma_delete_all.c | ||
| ma_delete_table.c | ||
| ma_dynrec.c | ||
| ma_extra.c | ||
| ma_ft_boolean_search.c | ||
| ma_ft_eval.c | ||
| ma_ft_eval.h | ||
| ma_ft_nlq_search.c | ||
| ma_ft_parser.c | ||
| ma_ft_stem.c | ||
| ma_ft_test1.c | ||
| ma_ft_test1.h | ||
| ma_ft_update.c | ||
| ma_ftdefs.h | ||
| ma_fulltext.h | ||
| ma_info.c | ||
| ma_init.c | ||
| ma_key.c | ||
| ma_key_recover.c | ||
| ma_key_recover.h | ||
| ma_keycache.c | ||
| ma_locking.c | ||
| ma_loghandler.c | ||
| ma_loghandler.h | ||
| ma_loghandler_lsn.h | ||
| ma_norec.c | ||
| ma_open.c | ||
| ma_packrec.c | ||
| ma_page.c | ||
| ma_pagecache.c | ||
| ma_pagecache.h | ||
| ma_pagecaches.c | ||
| ma_pagecrc.c | ||
| ma_panic.c | ||
| ma_preload.c | ||
| ma_range.c | ||
| ma_recovery.c | ||
| ma_recovery.h | ||
| ma_recovery_util.c | ||
| ma_recovery_util.h | ||
| ma_rename.c | ||
| ma_rfirst.c | ||
| ma_rkey.c | ||
| ma_rlast.c | ||
| ma_rnext.c | ||
| ma_rnext_same.c | ||
| ma_rprev.c | ||
| ma_rrnd.c | ||
| ma_rsame.c | ||
| ma_rsamepos.c | ||
| ma_rt_index.c | ||
| ma_rt_index.h | ||
| ma_rt_key.c | ||
| ma_rt_key.h | ||
| ma_rt_mbr.c | ||
| ma_rt_mbr.h | ||
| ma_rt_split.c | ||
| ma_rt_test.c | ||
| ma_scan.c | ||
| ma_search.c | ||
| ma_servicethread.c | ||
| ma_servicethread.h | ||
| ma_sort.c | ||
| ma_sp_defs.h | ||
| ma_sp_key.c | ||
| ma_sp_test.c | ||
| ma_state.c | ||
| ma_state.h | ||
| ma_static.c | ||
| ma_statrec.c | ||
| ma_test1.c | ||
| ma_test2.c | ||
| ma_test3.c | ||
| ma_test_all.res | ||
| ma_test_all.sh | ||
| ma_test_big.sh | ||
| ma_test_force_start.pl | ||
| ma_test_recovery | ||
| ma_trnman.h | ||
| ma_unique.c | ||
| ma_update.c | ||
| ma_write.c | ||
| maria_chk.c | ||
| maria_def.h | ||
| maria_dump_log.c | ||
| maria_ftdump.c | ||
| maria_pack.c | ||
| maria_read_log.c | ||
| maria_rename.sh | ||
| tablockman.c | ||
| tablockman.h | ||
| test_pack | ||
| trnman.c | ||
| trnman.h | ||
| trnman_public.h | ||