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WL 2826: Another step

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This commit is contained in:
mikron@mikael-ronstr-ms-dator.local
2006-02-01 14:00:00 +01:00
parent 08e12cada9
commit dc4ba14827
2 changed files with 161 additions and 10 deletions
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163
sql/sql_partition.cc
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@ -5114,6 +5114,146 @@ static bool mysql_drop_partitions(ALTER_PARTITION_PARAM_TYPE *lpt)
}
/*
Write the log entry to ensure that the shadow frm file is removed at
crash.
SYNOPSIS
write_log_shadow_frm()
lpt Struct containing parameters
install_frm Should we log action to install shadow frm or should
the action be to remove the shadow frm file.
RETURN VALUES
TRUE Error
FALSE Success
DESCRIPTION
Prepare an entry to the table log indicating a drop/install of the shadow frm
file and its corresponding handler file.
*/
bool
write_log_shadow_frm(ALTER_PARTITION_PARAM_TYPE *lpt, bool install_frm)
{
DBUG_ENTER("write_log_shadow_frm");
DBUG_RETURN(FALSE);
}
/*
Write the log entries to ensure that the drop partition command is completed
even in the presence of a crash.
SYNOPSIS
write_log_drop_partition()
lpt Struct containing parameters
RETURN VALUES
TRUE Error
FALSE Success
DESCRIPTION
Prepare entries to the table log indicating all partitions to drop and to
install the shadow frm file and remove the old frm file.
*/
bool
write_log_add_partition(ALTER_PARTITION_PARAM_TYPE *lpt)
{
DBUG_ENTER("write_log_drop_partition");
DBUG_RETURN(FALSE);
}
/*
Write the log entries to ensure that the drop partition command is completed
even in the presence of a crash.
SYNOPSIS
write_log_drop_partition()
lpt Struct containing parameters
RETURN VALUES
TRUE Error
FALSE Success
DESCRIPTION
Prepare entries to the table log indicating all partitions to drop and to
install the shadow frm file and remove the old frm file.
*/
bool
write_log_drop_partition(ALTER_PARTITION_PARAM_TYPE *lpt)
{
DBUG_ENTER("write_log_drop_partition");
DBUG_RETURN(FALSE);
}
/*
Write the log entries to ensure that the add partition command is not
executed at all if a crash before it has completed
SYNOPSIS
write_log_add_partition()
lpt Struct containing parameters
RETURN VALUES
TRUE Error
FALSE Success
DESCRIPTION
Prepare entries to the table log indicating all partitions to drop and to
remove the shadow frm file.
*/
bool
write_log_add_partition(ALTER_PARTITION_PARAM_TYPE *lpt)
{
DBUG_ENTER("write_log_add_partition");
DBUG_RETURN(FALSE);
}
/*
Write indicator of how to abort in first phase of change partitions
SYNOPSIS
write_log_ph1_change_partition()
lpt Struct containing parameters
RETURN VALUES
TRUE Error
FALSE Success
DESCRIPTION
Write the log entries to remove partitions in creation when changing
partitions in an ADD/REORGANIZE/COALESCE command. These commands will
abort the entire operation if the system crashes before the next phase
is done.
*/
bool
write_log_ph1_change_partition(ALTER_PARTITION_PARAM_TYPE *lpt)
{
DBUG_ENTER("write_log_ph1_change_partition");
DBUG_RETURN(FALSE);
}
/*
Write description of how to complete the operation after first phase of
change partitions.
SYNOPSIS
write_log_ph2_change_partition()
lpt Struct containing parameters
RETURN VALUES
TRUE Error
FALSE Success
DESCRIPTION
We will write log entries that specify to remove all partitions reorganised,
to rename others to reflect the new naming scheme and to install the shadow
frm file.
*/
bool
write_log_ph2_change_partition(ALTER_PARTITION_PARAM_TYPE *lpt)
{
DBUG_ENTER("write_log_ph2_change_partition");
DBUG_RETURN(FALSE);
}
/*
Actually perform the change requested by ALTER TABLE of partitions
previously prepared.
@ -5305,7 +5445,7 @@ uint fast_alter_partition_table(THD *thd, TABLE *table,
We insert Error injections at all places where it could be interesting
to test if recovery is properly done.
*/
if (write_log_shadow_frm(lpt) ||
if (write_log_shadow_frm(lpt, FALSE) ||
ERROR_INJECTOR_CRASH(1000) ||
mysql_write_frm(lpt, WFRM_WRITE_SHADOW) ||
ERROR_INJECTOR_CRASH(1001) ||
@ -5352,13 +5492,16 @@ uint fast_alter_partition_table(THD *thd, TABLE *table,
are still using the old partitioning scheme. Wait until all
ongoing users have completed before progressing.
4) Write binlog
5) Install the new frm file of the table where the partitions are
5) Now the change is completed except for the installation of the
new frm file. We thus write an action in the log to change to
the shadow frm file
6) Install the new frm file of the table where the partitions are
added to the table.
6) Wait until all accesses using the old frm file has completed
7) Remove entries from table log
8) Complete query
7) Wait until all accesses using the old frm file has completed
8) Remove entries from table log
9) Complete query
*/
if (write_log_shadow_frm(lpt) ||
if (write_log_shadow_frm(lpt, FALSE) ||
ERROR_INJECTED_CRASH(1010) ||
mysql_write_frm(lpt, WFRM_WRITE_SHADOW) ||
ERROR_INJECTED_CRASH(1011) ||
@ -5371,11 +5514,13 @@ uint fast_alter_partition_table(THD *thd, TABLE *table,
(write_bin_log(thd, FALSE,
thd->query, thd->query_length), FALSE)) ||
ERROR_INJECTED_CRASH(1014) ||
mysql_write_frm(lpt, WFRM_INSTALL_SHADOW) ||
write_log_shadow_frm(lpt, TRUE) ||
ERROR_INJECTED_CRASH(1015) ||
mysql_write_frm(lpt, WFRM_INSTALL_SHADOW) ||
ERROR_INJECTED_CRASH(1016) ||
(close_open_tables_and_downgrade(lpt), FALSE) ||
write_log_completed(lpt) ||
ERROR_INJECTED_CRASH(1016))
ERROR_INJECTED_CRASH(1017))
{
fast_alter_partition_error_handler(lpt);
DBUG_RETURN(TRUE);
@ -5437,7 +5582,7 @@ uint fast_alter_partition_table(THD *thd, TABLE *table,
14)Complete query
*/
if (write_log_shadow_frm(lpt) ||
if (write_log_shadow_frm(lpt, FALSE) ||
ERROR_INJECT_CRASH(1020) ||
mysql_write_frm(lpt, WFRM_WRITE_SHADOW) ||
ERROR_INJECT_CRASH(1021) ||