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| author | Alfranio Correia <alfranio.correia@oracle.com> | 2011-07-18 18:18:03 +0100 |
|---|---|---|
| committer | Alfranio Correia <alfranio.correia@oracle.com> | 2011-07-18 18:18:03 +0100 |
| commit | c1d55fb255f543bbd7ea62c1f7531b4fba3aa8ea (patch) | |
| tree | 045e03de93e7d0ce497903a3edb125a6b87f45d4 /sql/rpl_mi.cc | |
| parent | 201448009668caa116de9c2ff0e224d8e8fa3de1 (diff) | |
| download | mariadb-git-c1d55fb255f543bbd7ea62c1f7531b4fba3aa8ea.tar.gz | |
BUG#11809016 - NO WAY TO DISCOVER AN INSTANCE IS NO LONGER A SLAVE FOLLOWING MYSQL BUG#28796
Before BUG#28796, an empty host was used to identify that an instance was no
longer a slave. However, BUG#28796 changed this behavior and one cannot set
an empty host. Besides, a RESET SLAVE only cleans up information on the next
event to retrieve from the master, disables ssl and resets heartbeat period.
So a call to SHOW SLAVE STATUS after issuing a RESET SLAVE still returns some
valid information, such as host, port, user and password.
To fix this problem, we have introduced the command RESET SLAVE ALL that does
what a regular RESET SLAVE does and also clears host, port, user and password
information thus allowing users to identify when an instance is no longer a
slave.
Diffstat (limited to 'sql/rpl_mi.cc')
| -rw-r--r-- | sql/rpl_mi.cc | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sql/rpl_mi.cc b/sql/rpl_mi.cc index d1fd6bac41c..0060bcb6b1e 100644 --- a/sql/rpl_mi.cc +++ b/sql/rpl_mi.cc @@ -31,6 +31,8 @@ int init_strvar_from_file(char *var, int max_size, IO_CACHE *f, int init_floatvar_from_file(float* var, IO_CACHE* f, float default_val); int init_dynarray_intvar_from_file(DYNAMIC_ARRAY* arr, IO_CACHE* f); +static void init_master_log_pos(Master_info* mi); + Master_info::Master_info(bool is_slave_recovery) :Slave_reporting_capability("I/O"), ssl(0), ssl_verify_server_cert(0), fd(-1), io_thd(0), @@ -100,6 +102,16 @@ bool Master_info::shall_ignore_server_id(ulong s_id) != NULL; } +void Master_info::clear_in_memory_info(bool all) +{ + init_master_log_pos(this); + if (all) + { + port= MYSQL_PORT; + host[0] = 0; user[0] = 0; password[0] = 0; + } +} + void init_master_log_pos(Master_info* mi) { DBUG_ENTER("init_master_log_pos"); @@ -234,7 +246,7 @@ file '%s')", fname); } mi->fd = fd; - init_master_log_pos(mi); + mi->clear_in_memory_info(false); } else // file exists |