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WL#5142 FLUSH LOGS should take optional arguments for which log(s) to flush

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Support for flushing individual logs, so that the user can
selectively flush a subset of the server logs.

Flush of individual logs is done according to the 
following syntax:

  FLUSH <log_category> LOGS;

The syntax is extended so that the user is able to flush a
subset of logs:

  FLUSH [log_category LOGS,];

where log_category is one of:
  SLOW
  ERROR
  BINARY
  ENGINE
  GENERAL
  RELAY.


mysql-test/suite/rpl/r/rpl_flush_logs.result:
  Test result for WL#5142.
mysql-test/suite/rpl/t/rpl_flush_logs.test:
  Added the test file to verify if the 'flush individual log' 
  statement works fine.
sql/log.cc:
  Added the two functions to flush slow and general log.
sql/sql_parse.cc:
  Added code to flush specified logs against the option.
sql/sql_yacc.yy:
  Added code to parse the 'flush * log' statement syntax and 
  set its option to Lex->type.
This commit is contained in:
unknown
2009-12-03 16:59:58 +08:00
parent 80cb81069b
commit ac647f5a3e
9 changed files with 346 additions and 11 deletions
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2
sql/log.h
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@@ -570,6 +570,8 @@ public:
void init_base();
void init_log_tables();
bool flush_logs(THD *thd);
bool flush_slow_log();
bool flush_general_log();
/* Perform basic logger cleanup. this will leave e.g. error log open. */
void cleanup_base();
/* Free memory. Nothing could be logged after this function is called */