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BUG#37148 Most callers of mysql_bin_log.write ignore the return result

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This is the non-ndb part of the patch.

The return value of mysql_bin_log.write was ignored by most callers,
which may lead to inconsistent on master and slave if the transaction
was committed while the binlog was not correctly written. If
my_error() is call in mysql_bin_log.write, this could also lead to
assertion issue if my_ok() or my_error() is called after.

This fixed the problem by let the caller to check and handle the
return value of mysql_bin_log.write. This patch only adresses the
simple cases.


mysql-test/include/binlog_inject_error.inc:
  inject binlog write error when doing a query
mysql-test/suite/binlog/t/binlog_write_error.test:
  Simple test case to check if proper error is reported when injecting binlog write errors.
sql/events.cc:
  check return value of mysql_bin_log.write
sql/log.cc:
  check return value of mysql_bin_log.write
sql/log_event.cc:
  check return value of mysql_bin_log.write
sql/log_event_old.cc:
  check return value of mysql_bin_log.write
sql/mysql_priv.h:
  Change write_bin_log to return int instead of void
sql/rpl_injector.cc:
  check return value of writing binlog
sql/sp.cc:
  check return value of writing binlog
sql/sp_head.cc:
  return 1 if writing binlog failed
sql/sql_acl.cc:
  check return value of writing binlog
sql/sql_base.cc:
  check return value of writing binlog
sql/sql_class.h:
  Change binlog_show_create_table to return int
sql/sql_db.cc:
  Change write_to_binlog to return int
  check return value of writing binlog
sql/sql_delete.cc:
  check return value of writing binlog
sql/sql_insert.cc:
  check return value of writing binlog
sql/sql_load.cc:
  check return value of writing binlog
sql/sql_parse.cc:
  check return value of writing binlog
sql/sql_partition.cc:
  check return value of writing binlog
sql/sql_rename.cc:
  check return value of writing binlog
sql/sql_repl.cc:
  check return value of writing binlog
sql/sql_table.cc:
  Change write_bin_log to return int, and return 1 if there was error writing binlog
sql/sql_tablespace.cc:
  check return value of writing binlog
sql/sql_trigger.cc:
  check return value of writing binlog
sql/sql_udf.cc:
  check return value of writing binlog
sql/sql_update.cc:
  check return value of writing binlog
sql/sql_view.cc:
  check return value of writing binlog
This commit is contained in:
He Zhenxing
2009-11-21 12:28:01 +08:00
parent 27fca0ab17
commit dd383cadec
28 changed files with 471 additions and 159 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
sql/sql_repl.cc
View File

@ -1219,8 +1219,8 @@ int reset_slave(THD *thd, Master_info* mi)
MY_STAT stat_area;
char fname[FN_REFLEN];
int thread_mask= 0, error= 0;
uint sql_errno=0;
const char* errmsg=0;
uint sql_errno=ER_UNKNOWN_ERROR;
const char* errmsg= "Unknown error occured while reseting slave";
DBUG_ENTER("reset_slave");
lock_slave_threads(mi);
@ -1960,7 +1960,8 @@ err:
replication events along LOAD DATA processing.
@param file pointer to io-cache
@return 0
@retval 0 success
@retval 1 failure
*/
int log_loaded_block(IO_CACHE* file)
{
@ -1987,7 +1988,8 @@ int log_loaded_block(IO_CACHE* file)
Append_block_log_event a(lf_info->thd, lf_info->thd->db, buffer,
min(block_len, max_event_size),
lf_info->log_delayed);
mysql_bin_log.write(&a);
if (mysql_bin_log.write(&a))
DBUG_RETURN(1);
}
else
{
@ -1995,7 +1997,8 @@ int log_loaded_block(IO_CACHE* file)
buffer,
min(block_len, max_event_size),
lf_info->log_delayed);
mysql_bin_log.write(&b);
if (mysql_bin_log.write(&b))
DBUG_RETURN(1);
lf_info->wrote_create_file= 1;
DBUG_SYNC_POINT("debug_lock.created_file_event",10);
}