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| author | Andrei Elkin <andrei.elkin@mariadb.com> | 2020-08-11 21:45:09 +0300 |
|---|---|---|
| committer | Andrei Elkin <andrei.elkin@mariadb.com> | 2020-08-31 18:37:44 +0300 |
| commit | 6112a0f93d137b9754bc04449873311784e0edd9 (patch) | |
| tree | dc038437c44d0397460a3acf624163c370d86b81 /mysql-test/suite | |
| parent | 9bb17ecf4352e0ba009d6afb9260d291ed70fa4c (diff) | |
| download | mariadb-git-6112a0f93d137b9754bc04449873311784e0edd9.tar.gz | |
MDEV-16372 ER_BASE64_DECODE_ERROR upon replaying binary log via mysqlbinlog --verbose
(This commit is exclusively for 10.2 branch. Do not merge it to 10.3)
In case of a pattern of non-STMT_END-marked Rows-log-event (A) followed by
a STMT_END marked one (B) mysqlbinlog mixes up the base64 encoded rows events
with their pseudo sql representation produced by the verbose option:
BINLOG '
base64 encoded data for A
### verbose section for A
base64 encoded data for B
### verbose section for B
'/*!*/;
In effect the produced BINLOG '...' query is not valid and is rejected with the error.
Examples of this way malformed BINLOG could have been found in binlog_row_annotate.result
that gets corrected with the patch.
The issue is fixed with introduction an auxiliary IO_CACHE to hold on the verbose
comments until the terminal STMT_END event is found. The new cache is emptied
out after two pre-existing ones are done at that time.
The correctly produced output now for the above case is as the following:
BINLOG '
base64 encoded data for A
base64 encoded data for B
'/*!*/;
### verbose section for A
### verbose section for B
Thanks to Alexey Midenkov for the problem recognition and attempt to tackle,
and to Venkatesh Duggirala who produced a patch for the upstream whose
idea is exploited here, as well as to MDEV-23077 reporter LukeXwang who
also contributed a piece of a patch aiming at this issue.
Diffstat (limited to 'mysql-test/suite')
3 files changed, 1 insertions, 5 deletions
diff --git a/mysql-test/suite/binlog/r/binlog_row_annotate.result b/mysql-test/suite/binlog/r/binlog_row_annotate.result index 2104d6b0e51..732ecdd02fd 100644 --- a/mysql-test/suite/binlog/r/binlog_row_annotate.result +++ b/mysql-test/suite/binlog/r/binlog_row_annotate.result @@ -442,7 +442,6 @@ BEGIN ### DELETE FROM `test1`.`t1` ### WHERE ### @1=3 /* INT meta=0 nullable=1 is_null=0 */ -'/*!*/; # at # #010909 4:46:40 server id # end_log_pos # Query thread_id=# exec_time=# error_code=0 SET TIMESTAMP=1000000000/*!*/; @@ -1053,7 +1052,6 @@ BEGIN ### DELETE FROM `test1`.`t1` ### WHERE ### @1=3 /* INT meta=0 nullable=1 is_null=0 */ -'/*!*/; # at # #010909 4:46:40 server id # end_log_pos # Query thread_id=# exec_time=# error_code=0 SET TIMESTAMP=1000000000/*!*/; diff --git a/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row_frag.test b/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row_frag.test index a1791d9701d..9f79deea3db 100644 --- a/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row_frag.test +++ b/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row_frag.test @@ -11,8 +11,7 @@ SELECT a from t into @a; FLUSH LOGS; DELETE FROM t; -# Todo: MDEV-10362 to test multi-row Rows_log_event:s in verbose mode ---exec $MYSQL_BINLOG -vv --debug-binlog-row-event-max-encoded-size=256 $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/tmp/mysqlbinlog.sql +--exec $MYSQL_BINLOG --verbose --debug-binlog-row-event-max-encoded-size=256 $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/tmp/mysqlbinlog.sql --let SEARCH_PATTERN= BINLOG @binlog_fragment_0, @binlog_fragment_1 --let SEARCH_FILE= $MYSQLTEST_VARDIR/tmp/mysqlbinlog.sql diff --git a/mysql-test/suite/binlog_encryption/binlog_row_annotate.result b/mysql-test/suite/binlog_encryption/binlog_row_annotate.result index 9b843dc8a6b..83903ecc18a 100644 --- a/mysql-test/suite/binlog_encryption/binlog_row_annotate.result +++ b/mysql-test/suite/binlog_encryption/binlog_row_annotate.result @@ -449,7 +449,6 @@ BEGIN ### DELETE FROM `test1`.`t1` ### WHERE ### @1=3 /* INT meta=0 nullable=1 is_null=0 */ -'/*!*/; # at # #010909 4:46:40 server id # end_log_pos # Query thread_id=# exec_time=# error_code=0 SET TIMESTAMP=1000000000/*!*/; |