紧急求助：ora-04031:unable to allocate 27996 bytes of share memory

[linxi]

紧急求助：ora-04031:unable to allocate 27996 bytes of share memory 我用的是10G

[子陌红尘]

You should increase your shared pool size. You can also flush shared pool to avoid this error temporarily.


If the shared pool is out of memory, either use the dbms_shared_pool package to pin large packages, reduce your use of shared memory, or increase the amount of available shared memory by increasing the value of the INIT.ORA parameters "shared_pool_reserved_size" and "shared_pool_size". If the large pool is out of memory, increase the INIT.ORA parameter "large_pool_size".

[ymilktea]

flush sga...


同楼上的结论， 可能是你的SGA碎片化严重，最有效的解决办法应该是修改参数， 不能重启数据库的话就flush sga 了。

[oracledbalgtu]

查看数据库的配置参数是否正确，尤其是shared_pool_size,
或者通过如下sql确认:
select pool,sum(bytes) from v$sgastat group by pool;
如果设置正确，不排除遇到oracle bug的可能。


[Quote=引用楼主 linxi 的帖子:]
紧急求助：ora-04031:unable to allocate 27996 bytes of share memory 我用的是10G
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[linxi]

2G的内存要怎么分配pvg,和svg?

[vc555]

你可以在sqlplus中：show pool看看这些内存值的大小。

10G的话最好启用ASMM，让oracle自动管理内存，分配SGA的大小。
只需设置：
alter system set sga_target=300m scope=spfile; --设置SGA的目标值为300mb
alter system set sga_max_size=300m scope=spfile; --设置SGA的最大值为300mb
再：
alter system set shared_pool_size=0;
还有这些SGA组件也可自动管理：db_cache_size,large_pool_size, java_pool_size。

最后重启实例后生效。

[wangkun2001]

ALTER SYSTEM
FLUSH SHARED_POOL;

试一试这个