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MDEV-26: Global transaction ID. First alpha release.

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Merge of 10.0-mdev26 feature tree into 10.0-base.

Global transaction ID is prepended to each event group in the binlog.

Slave connect can request to start from GTID position instead of specifying
file name/offset of master binlog. This facilitates easy switch to a new
master.

Slave GTID state is stored in a table mysql.rpl_slave_state, which can be
InnoDB to get crash-safe slave state.

GTID includes a replication domain ID, allowing to keep track of distinct
positions for each of multiple masters.
This commit is contained in:
unknown
2013-04-15 10:55:27 +02:00
parent 491047a247 e5cbefeb89
commit 665a31af2b
251 changed files with 17002 additions and 8586 deletions
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10
sql/sql_class.h
View File

@ -534,11 +534,18 @@ typedef struct system_variables
ulong tx_isolation;
ulong updatable_views_with_limit;
int max_user_connections;
ulong server_id;
/**
In slave thread we need to know in behalf of which
thread the query is being run to replicate temp tables properly
*/
my_thread_id pseudo_thread_id;
/**
When replicating an event group with GTID, keep these values around so
slave binlog can receive the same GTID as the original.
*/
uint32 gtid_domain_id;
uint64 gtid_seq_no;
/**
Place holders to store Multi-source variables in sys_var.cc during
update and show of variables.
@ -1701,7 +1708,6 @@ public:
first byte of the packet in do_command()
*/
enum enum_server_command command;
uint32 server_id;
uint32 file_id; // for LOAD DATA INFILE
/* remote (peer) port */
uint16 peer_port;
@ -1778,7 +1784,7 @@ public:
MY_BITMAP const* cols, size_t colcnt,
const uchar *old_data, const uchar *new_data);
void set_server_id(uint32 sid) { server_id = sid; }
void set_server_id(uint32 sid) { variables.server_id = sid; }
/*
Member functions to handle pending event for row-level logging.