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alter system set sga_max_size=11g scope=spfile;
alter system set sga_target=11g scope=spfile;
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startup
ORA-27102: out of memory
Linux-x86_64 Error: 28: No space left on device
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kernel.shmall = 2097152
kernel.semmsl= 250
kernel.semmns=32000
kernel.shmmax = 8589934592
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
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kernel.shmmax = 8589934592ÉèµÃ²»¹»´ó
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kernel.shmmax =17179869184
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ºÍkernel.semµÄÄÚ´æ¶ÎÉèÖôóСÓйأ¬½«
kernel.sem = 500 64000 100 128
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http://www.redhat.com/docs/manuals/database/RHDB-2.1-Manual/admin_user/kernel-resources.html
kernel.shmall = 2097152 LINUXÒ»¸öÒ³ÃæÊÇ4K ¾ÍÊÇ 2097152*4k/1024/1024 = 8G £¬Ã÷ÏÔ̫С
ËãÁËÒ»ÏÂ16G=4194304
½«kernel.shmall = 4194304
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1.create user testa identified by testa;
2.alter user testa default tablespace users temporary tablespace temp;
3.grant connect to testa;
4.grant select any table to testa;
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select t1.sid, t1.serial#, t1.username, t1.logon_time
from v$session t1 , v$locked_object t2
where t1.sid = t2.session_id
order by t1.logon_time
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