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I committed the same changeset in my tree yesterday, but broke the tree since,

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so I commit again in a fresh tree.
Fix for bug#763 (Relay_log_space too big by 4 bytes),
plus comments and DBUG_PRINT, and we don't start replication
if --bootstrap.
This commit is contained in:
guilhem@mysql.com
2003-07-03 01:08:36 +02:00
parent b3f153507e
commit ace8a06323
6 changed files with 49 additions and 5 deletions
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19
sql/sql_repl.cc
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@@ -796,6 +796,25 @@ err:
DBUG_RETURN(error);
}
/*
Kill all Binlog_dump threads which previously talked to the same slave
("same" means with the same server id). Indeed, if the slave stops, if the
Binlog_dump thread is waiting (pthread_cond_wait) for binlog update, then it
will keep existing until a query is written to the binlog. If the master is
idle, then this could last long, and if the slave reconnects, we could have 2
Binlog_dump threads in SHOW PROCESSLIST, until a query is written to the
binlog. To avoid this, when the slave reconnects and sends COM_BINLOG_DUMP,
the master kills any existing thread with the slave's server id (if this id is
not zero; it will be true for real slaves, but false for mysqlbinlog when it
sends COM_BINLOG_DUMP to get a remote binlog dump).
SYNOPSIS
kill_zombie_dump_threads()
slave_server_id the slave's server id
*/
void kill_zombie_dump_threads(uint32 slave_server_id)
{