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MDEV-7850: Extend GTID Binlog Events with Thread Id

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This patch augments Gtid_log_event with the user thread-id.
In particular that compensates for the loss of this info in
Rows_log_events.

Gtid_log_event::thread_id gets visible in mysqlbinlog output like

  #231025 16:21:45 server id 1  end_log_pos 537 CRC32 0x1cf1d963  GTID 0-1-2 ddl thread_id=10

as a 32 bit unsigned integer. Note this is a 32-bit value, as
the connection id can only be 32 bits (see MDEV-15089 for
details).

While the size of Gtid event has grown by 4 bytes
replication from OLD <-> NEW is not affected by it. This patch
also slightly changes the logic to convert Gtid events to Query
events for older replicas which don't support Gtid. Instead of
hard-coding the padding of the sys var section of the generated
Query event, the length to pad is dynamically calculated based
on the length of the Gtid event.

This work was started by the late Sujatha Sivakumar.
Brandon Nesterenko took it over, reviewed initial patches and
extended the work.

Also thanks to Andrei for his help in finalizing the fixes for
MDEV-33924, which were squashed into this patch.

Reviewed-by:
=============
Andrei Elkin <andrei.elkin@mariadb.com>
Kristian Nielsen <knielsen@knielsen-hq.org>
This commit is contained in:
Brandon Nesterenko
2023-07-10 18:53:19 +03:00
parent f151c5f389
commit e4afa61053
28 changed files with 1072 additions and 769 deletions
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2
mysql-test/main/mysqlbinlog_stmt_compressed.test
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@ -29,7 +29,7 @@ DELETE FROM t2;
FLUSH BINARY LOGS;
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
--replace_regex /\d{6} *\d*:\d\d:\d\d/<date>/ /Start:.*at startup/Start: xxx/ /SET TIMESTAMP=\d*/SET TIMESTAMP=X/ /exec_time=\d*/exec_time=x/ /mapped to number \d*/mapped to number num/ /CRC32 0x[0-9a-f]+/CRC32 XXX/ /@@session.sql_mode=\d+/@@session.sql_mode=#/ /collation_server=\d+/collation_server=#/ /xid=\d*/xid=<xid>/
--replace_regex /\d{6} *\d*:\d\d:\d\d/<date>/ /Start:.*at startup/Start: xxx/ /SET TIMESTAMP=\d*/SET TIMESTAMP=X/ /exec_time=\d*/exec_time=x/ /mapped to number \d*/mapped to number num/ /CRC32 0x[0-9a-f]+/CRC32 XXX/ /@@session.sql_mode=\d+/@@session.sql_mode=#/ /collation_server=\d+/collation_server=#/ /xid=\d*/xid=<xid>/ /thread_id=\d*/thread_id=TID/ /end_log_pos [0-9]*/end_log_pos #/
--exec $MYSQL_BINLOG --verbose --verbose --base64-output=DECODE-ROWS $datadir/$binlog
--echo