mariadb/mysql-test/suite/maria/r/maria-recovery3.result
Guilhem Bichot 91bc9cc9e6 Fix for BUG#41037 "Maria: recovery failure (pushbuild2)" (checkpoint bug).
mysql-test/suite/maria/r/maria-recovery3.result:
  result.
mysql-test/suite/maria/t/maria-recovery3-master.opt:
  usual recovery test options
mysql-test/suite/maria/t/maria-recovery3.test:
  Test for BUG#41037. Without the bugfix, the test would hang because Recovery would fail with "undo_key_insert got error 126": Recovery would believe INSERT of 2 is uncommitted, try to execute its UNDO_KEY_INSERT, fail to find the key to delete because DELETE deleted it. That failure of _ma_ck_real_delete() would mark table as corrupted (see
  in d_search()) which is error 126 (HA_ERR_CRASHED).
storage/maria/ma_blockrec.c:
  set trn->rec_lsn to LSN of commit record, when writing it.
storage/maria/ma_blockrec.h:
  new function
storage/maria/ma_commit.c:
  when committing or rolling back, rec_lsn should be LSN_IMPOSSIBLE: assertion is moved here
  from trnman_end_trn(), because now ma_commit() can set rec_lsn and so when we reach trnman_end_trn()
  it's not LSN_IMPOSSIBLE anymore.
  Adding debug possibility to pause between COMMIT record write and trnman_commit_trn(), to be
  able to fire checkpoint in between.
storage/maria/ma_loghandler.c:
  in-write hook for COMMIT records
storage/maria/ma_recovery.c:
  More debugging info in maria_recovery.trace, to see how the starting point of REDO phase is determined
storage/maria/trnman.c:
  assertion cannot be here anymore see ma_commit.c
2008-12-05 22:11:46 +01:00

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set global maria_log_file_size=4294967295;
drop database if exists mysqltest;
create database mysqltest;
use mysqltest;
* shut down mysqld, removed logs, restarted it
* TEST of Checkpoint between writing the commit log record and committing in trnman
create table t1(a int primary key) engine=maria;
insert into t1 values(1);
flush table t1;
* copied t1 for comparison
set session debug="+d,maria_sleep_in_commit";
insert into t1 values(2);
set global maria_checkpoint_interval=1000;
delete from t1 where a=2;
SET SESSION debug="+d,maria_flush_whole_log,maria_crash";
* crashing mysqld intentionally
set global maria_checkpoint_interval=1;
ERROR HY000: Lost connection to MySQL server during query
* recovery happens
check table t1 extended;
Table Op Msg_type Msg_text
mysqltest.t1 check status OK
* testing that checksum after recovery is as expected
Checksum-check
ok
use mysqltest;
drop table t1;
drop database mysqltest_for_comparison;
drop database mysqltest;