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BUG#13593869 - 64035: SEVERAL ERRORS IN COM_BINLOG_DUMP/MYSQL_BINLOG_SEND CRASH THE SERVER

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The server crashes when receiving a COM_BINLOG_DUMP command with a position of 0 or
larger than the file size.
The execution proceeds to an error block having the last read replication coordinates 
pointer be NULL and its dereferencing crashed the server.

Fixed with making "public" previously used only for heartbeat coordinates.


mysql-test/extra/rpl_tests/rpl_start_stop_slave.test:
  regression test for bug#3593869-64035 is added.
mysql-test/suite/rpl/r/rpl_cant_read_event_incident.result:
  results updated (error mess format is changed).
mysql-test/suite/rpl/r/rpl_log_pos.result:
  results updated (error mess format is changed).
mysql-test/suite/rpl/r/rpl_manual_change_index_file.result:
  results updated (error mess format is changed).
mysql-test/suite/rpl/r/rpl_packet.result:
  results updated (error mess format is changed).
mysql-test/suite/rpl/r/rpl_stm_start_stop_slave.result:
  results updated (error mess format is changed).
mysql-test/suite/rpl/t/rpl_stm_start_stop_slave.test:
  Slave is stopped by bug#3593869-64035 tests so 
  -let $rpl_only_running_threads= 1 is set prior to rpl_end.
sql/share/errmsg-utf8.txt:
  Increasing the max length of explanatory message to 512.
sql/sql_repl.cc:
  Making `coord' to carry the last read from binlog event coordinates
  regardless of heartbeat.
  Renaming, small cleanup and simplifying the code after if (coord) becomes unnecessary.
  Adding yet another 3rd pair of coordinates - the starting replication - 
  into error text.
This commit is contained in:
Andrei Elkin
2012-01-18 00:16:19 +02:00
parent ae3962d142
commit 7cdd7a7493
11 changed files with 77 additions and 34 deletions
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2
mysql-test/suite/rpl/r/rpl_packet.result
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@ -37,7 +37,7 @@ DROP TABLE t1;
CREATE TABLE t1 (f1 int PRIMARY KEY, f2 LONGTEXT, f3 LONGTEXT) ENGINE=MyISAM;
INSERT INTO t1(f1, f2, f3) VALUES(1, REPEAT('a', @@global.max_allowed_packet), REPEAT('b', @@global.max_allowed_packet));
include/wait_for_slave_io_error.inc [errno=1236]
Last_IO_Error = 'Got fatal error 1236 from master when reading data from binary log: 'log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master; the last event was read from 'master-bin.000001' at XXX, the last byte read was read from 'master-bin.000001' at XXX.''
Last_IO_Error = 'Got fatal error 1236 from master when reading data from binary log: 'log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master; the start event position from '' at XXX, the last event was read from 'master-bin.000001' at XXX, the last byte read was read from 'master-bin.000001' at XXX.''
STOP SLAVE;
RESET SLAVE;
RESET MASTER;