mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-22 23:04:20 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Hacked fix for #832. Don't promote unless there's space for a max pivot key.

Browse source 
git-svn-id: file:///svn/tokudb@4105 c7de825b-a66e-492c-adef-691d508d4ae1
This commit is contained in:
Bradley C. Kuszmaul 2008-05-23 17:04:21 +00:00
parent f60c54cad0
commit fbc83b1cda
1 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
newbrt/brt.c
View file

@ -652,6 +652,9 @@ static int brtnode_put_cmd (BRT t, BRTNODE node, BRT_CMD cmd,
DBT *split,
TOKULOGGER);
// The maximum row size is 16KB according to the PRD. That means the max pivot key size is 16KB.
#define MAX_PIVOT_KEY_SIZE (1<<14)
/* key is not in the buffer. Either put the key-value pair in the child, or put it in the node. */
static int push_brt_cmd_down_only_if_it_wont_push_more_else_put_here (BRT t, BRTNODE node, BRTNODE child,
BRT_CMD cmd,
@ -661,7 +664,7 @@ static int push_brt_cmd_down_only_if_it_wont_push_more_else_put_here (BRT t, BRT
DBT *k = cmd->u.id.key;
DBT *v = cmd->u.id.val;
unsigned int oldsize = toku_serialize_brtnode_size(child);
unsigned int newsize_bounded = oldsize + k->size + v->size + KEY_VALUE_OVERHEAD + LE_OVERHEAD_BOUND;
unsigned int newsize_bounded = oldsize + k->size + v->size + KEY_VALUE_OVERHEAD + LE_OVERHEAD_BOUND + MAX_PIVOT_KEY_SIZE;
newsize_bounded += (child->height > 0) ? BRT_CMD_OVERHEAD : OMT_ITEM_OVERHEAD;
int to_child = newsize_bounded <= child->nodesize;