重建索引时报临时空间不足,但还有10G空间.求高手指点.

我把4000万的数据导入了一张新表.
在导入之前.我将所有约束都置失效,
    SET CONSTRAINTS, INDEXES, TRIGGERS FOR 表名 DISABLED;

导入成功之后.
SET CONSTRAINTS, INDEXES, TRIGGERS FOR 表名 ENABLED;
打算把所有约束重建起来.

建了很久.都没有反应.查看日志.发现.报.
WARNING: Not enough temp space for parallel index build.
Space required = 7026482 pages; space available = 4954397 pages

临时表空间不足.
我有2个临时表空间.都有.10G..  空间是足够的.可是为什么还会报.表空间不足了...求高手.帮忙....该如何是好?

数据库也没办法重起!!

报错如下:  
19:42:26  WARNING: Not enough temp space for parallel index build.
           Space required = 2163756 pages; space available = 2038818 pages.
           Partial index build started.
20:34:37  Checkpoint Completed:  duration was 0 seconds.
20:34:37  Fri Jun 15 - loguniq 110, logpos 0x3d85018, timestamp: 0xdc40bbc Interval: 1006

20:34:37  Maximum server connections 18
20:34:37  Checkpoint Statistics - Avg. Txn Block Time 0.000, # Txns blocked 0, Plog used 75, Llog used 52

21:54:37  Checkpoint Completed:  duration was 1191 seconds.
21:54:37  Fri Jun 15 - loguniq 110, logpos 0x3daf038, timestamp: 0xde1790a Interval: 1007

21:54:37  Maximum server connections 18
21:54:37  Checkpoint Statistics - Avg. Txn Block Time 1192.118, # Txns blocked 3, Plog used 413, Llog used 42