taiji.net.cn - Database Error

(1) Can't create/write to file '#sql_b34_0.MYD' (Errcode: 17)

SELECT DISTINCT t.*, ti.attachment as attachmenturl, ti.remote FROM `forum_thread` t INNER JOIN `forum_threadimage` ti ON t.tid=ti.tid WHERE t.readperm='0' AND t.fid IN ('14','340','13','342','339','31','32','33','334','394','16','15','2','345','17','18','19','20','21','22','36','336','338','337','335','391','188','35','25','421') AND t.special IN ('0') AND t.isgroup='0' AND t.displayorder>='0' ORDER BY t.replies DESC LIMIT 0,4;

PHP Debug

No.	File	Line	Code
1	forum.php	67	require(%s)
2	source/module/forum/forum_index.php	432	include(%s)
3	data/template/14_diy_forum_discuz.tpl.php	472	include(%s)
4	data/template/14_11_common_footer.tpl.php	154	output()
5	source/function/function_core.php	1032	block_updatecache(%s)
6	source/function/function_block.php	237	block_thread->getdata(Array, Array)
7	source/class/block/forum/block_thread.php	373	discuz_database::query(%s)
8	source/class/discuz/discuz_database.php	137	db_driver_mysql->query(%s, false, false)
9	source/class/db/db_driver_mysql.php	152	db_driver_mysql->halt(%s, %d, %s)
10	source/class/db/db_driver_mysql.php	223	break()

Discuz! Database Error