database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-27 18:02:13 +03:00
Code Activity

Many files:

Browse Source 
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
This commit is contained in:
heikki@hundin.mysql.fi
2005-04-20 19:27:46 +03:00
parent ba51f96e39
commit 8974ce0836
7 changed files with 382 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
sql/sql_repl.cc
View File

@ -385,6 +385,11 @@ impossible position";
goto err;
}
printf("Binlog file name %s\n", log_file_name);
if (thd->variables.sync_replication)
ha_repl_report_sent_binlog(thd, log_file_name, pos);
/*
We need to start a packet with something other than 255
to distinguish it from error
@ -470,6 +475,10 @@ impossible position";
my_errno= ER_UNKNOWN_ERROR;
goto err;
}
if (thd->variables.sync_replication)
ha_repl_report_sent_binlog(thd, log_file_name, my_b_tell(&log));
/*
No need to save this event. We are only doing simple reads
(no real parsing of the events) so we don't need it. And so
@ -527,6 +536,13 @@ impossible position";
my_errno= ER_UNKNOWN_ERROR;
goto err;
}
printf("Dump loop: %s: Current log position %lu\n", log_file_name,
(ulong)my_b_tell(&log));
if (thd->variables.sync_replication)
ha_repl_report_sent_binlog(thd, log_file_name, my_b_tell(&log));
DBUG_PRINT("info", ("log event code %d",
(*packet)[LOG_EVENT_OFFSET+1] ));
if ((*packet)[LOG_EVENT_OFFSET+1] == LOAD_EVENT)
@ -640,6 +656,12 @@ impossible position";
goto err;
}
printf("Second loop: %s: Current log position %lu\n", log_file_name,
(ulong)my_b_tell(&log));
if (thd->variables.sync_replication)
ha_repl_report_sent_binlog(thd, log_file_name, my_b_tell(&log));
if ((*packet)[LOG_EVENT_OFFSET+1] == LOAD_EVENT)
{
if (send_file(thd))
@ -704,12 +726,22 @@ impossible position";
my_errno= ER_MASTER_FATAL_ERROR_READING_BINLOG;
goto err;
}
if (thd->variables.sync_replication)
ha_repl_report_sent_binlog(thd, log_file_name, 0);
printf("Binlog file name of a new binlog %s\n", log_file_name);
packet->length(0);
packet->append('\0');
}
}
end:
printf("Ending replication\n");
if (thd->variables.sync_replication)
ha_repl_report_replication_stop(thd);
end_io_cache(&log);
(void)my_close(file, MYF(MY_WME));
@ -721,6 +753,11 @@ end:
DBUG_VOID_RETURN;
err:
if (thd->variables.sync_replication)
ha_repl_report_replication_stop(thd);
printf("Ending replication in error %s\n", errmsg);
thd->proc_info = "Waiting to finalize termination";
end_io_cache(&log);
/*