查询dba_data_files遇到ORA-00379: no free buffers available in buffer pool DEFAULT for block size 2K

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE    11.2.0.3.0      Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
查询此视图dba_data_files，报错
ERROR at line 1:
ORA-00379: no free buffers available in buffer pool DEFAULT for block size 2K

后来检查发现（select tablespace_name,block_size from dba_tablespaces;），有2k的表空间，于是设置2k表空间的cache:

alter system set db_2k_cache_size=10m;

然后就ok了。