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When the I/O thread was stopped while copying a long transaction, and restarted,

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Rotate_log_event::exec_event() believed that the relay log was corrupted. Fixed it
by moving the test for corruption to Start_log_event::exec_event(). 
Changed Rotate_log_event::exec_event() to not increment positions when the
event is seen in the middle of a transaction.
I did a separate commit in 4.1 (so this should not be merged to 4.0) because
code is a bit different in 4.1.
A test to see if the slave detects when the master died while writing a 
transaction to the binlog (uses a forged truncated binlog I made).


sql/log_event.cc:
  When the I/O thread was stopped while copying a long transaction, and restarted,
  Rotate_log_event::exec_event() believed that the relay log was corrupted. Fixed it
  by moving the test for corruption to Start_log_event::exec_event(). 
  Changed Rotate_log_event::exec_event() to not increment positions when the
  event is seen in the middle of a transaction.
This commit is contained in:
unknown
2003-10-03 22:13:01 +02:00
parent 7a58bfee61
commit 1bd7662b89
4 changed files with 69 additions and 33 deletions
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22
mysql-test/t/rpl_trunc_binlog.test Normal file
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# We are testing if a binlog which contains BEGIN but not COMMIT (the master did
# while writing the transaction to the binlog) triggers an error on slave.
# So we use such a truncated binlog and simulate that the master restarted after
# this.
source include/master-slave.inc;
connection slave;
stop slave;
connection master;
flush logs;
system mv -f var/log/master-bin.001 var/log/master-bin.002;
system cp std_data/trunc_binlog.001 var/log/master-bin.001;
connection slave;
reset slave;
start slave;
# can't sync_with_master so we must sleep
sleep 3;
--replace_result $MASTER_MYPORT MASTER_PORT
show slave status;
connection master;
reset master;