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Add new user variables for tuning memory usage:

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query_alloc_block_size, query_prealloc_size, range_alloc_block_size,transaction_alloc_block_size and transaction_prealloc_size
Add more checks for "out of memory" detection in range optimization
This commit is contained in:
monty@mashka.mysql.fi
2003-10-11 22:00:24 +03:00
parent 9bba878b8c
commit c95d142f8f
21 changed files with 257 additions and 81 deletions
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18
sql/sql_parse.cc
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@@ -46,11 +46,6 @@
#endif /* HAVE_OPENSSL */
#define SCRAMBLE_LENGTH 8
#define MEM_ROOT_BLOCK_SIZE 8192
#define MEM_ROOT_PREALLOC 8192
#define TRANS_MEM_ROOT_BLOCK_SIZE 4096
#define TRANS_MEM_ROOT_PREALLOC 4096
extern int yyparse(void);
extern "C" pthread_mutex_t THR_LOCK_keycache;
#ifdef SOLARIS
@@ -714,9 +709,12 @@ pthread_handler_decl(handle_one_connection,arg)
thd->command=COM_SLEEP;
thd->version=refresh_version;
thd->set_time();
init_sql_alloc(&thd->mem_root, MEM_ROOT_BLOCK_SIZE, MEM_ROOT_PREALLOC);
init_sql_alloc(&thd->mem_root, thd->variables.query_alloc_block_size,
thd->variables.query_prealloc_size);
init_sql_alloc(&thd->transaction.mem_root,
TRANS_MEM_ROOT_BLOCK_SIZE, TRANS_MEM_ROOT_PREALLOC);
thd->variables.trans_alloc_block_size,
thd->variables.trans_prealloc_size);
while (!net->error && net->vio != 0 && !thd->killed)
{
if (do_command(thd))
@@ -791,9 +789,11 @@ extern "C" pthread_handler_decl(handle_bootstrap,arg)
thd->priv_user=thd->user=(char*) my_strdup("boot", MYF(MY_WME));
buff= (char*) thd->net.buff;
init_sql_alloc(&thd->mem_root, MEM_ROOT_BLOCK_SIZE, MEM_ROOT_PREALLOC);
init_sql_alloc(&thd->mem_root, thd->variables.query_alloc_block_size,
thd->variables.query_prealloc_size);
init_sql_alloc(&thd->transaction.mem_root,
TRANS_MEM_ROOT_BLOCK_SIZE, TRANS_MEM_ROOT_PREALLOC);
thd->variables.trans_alloc_block_size,
thd->variables.trans_prealloc_size);
while (fgets(buff, thd->net.max_packet, file))
{
uint length=(uint) strlen(buff);