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MDEV-162 Enhanced semisync replication

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Implement --semi-sync-master-wait-point=AFTER_SYNC|AFTER_COMMIT.

When AFTER_SYNC, the semi-sync wait will be done earlier, before the storage
engine commit rather than after. This means that a transaction will not be
visible on the master until at least one slave has received it.
This commit is contained in:
Jonas Oreland
2014-12-23 13:38:00 +01:00
committed by Kristian Nielsen
parent 4d8b346e07
commit 0b87de124d
29 changed files with 1735 additions and 46 deletions
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5
sql/rpl_handler.h
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@ -153,7 +153,10 @@ class Binlog_storage_delegate
public:
typedef Binlog_storage_observer Observer;
int after_flush(THD *thd, const char *log_file,
my_off_t log_pos, bool synced);
my_off_t log_pos, bool synced,
bool first_in_group, bool last_in_group);
int after_sync(THD *thd, const char *log_file, my_off_t log_pos,
bool first_in_group, bool last_in_group);
};
#ifdef HAVE_REPLICATION