linux下ipcs和ipcrm命令詳解
2008-12-29 17:16
1. What command do you run to check the shared memory allocation on a system?
ipcs
2. What command do you run to manually deallocate shared memory on a system?
ipcrm
http://www.52rd.com/Blog/Detail_RD.Blog_wqyuwss_6519.html
取得ipc信息：
ipcs [-m|-q|-s]
-m 輸出有關(guān)共享內(nèi)存(shared memory)的信息
-q 輸出有關(guān)信息隊(duì)列(message queue)的信息
-s 輸出有關(guān)“遮斷器”(semaphore)的信息
# ipcs -m
IPC status from <running system> as of 2007年04月10日 星期二 18時(shí)32分18秒 CST
T ID KEY MODE OWNER GROUP
Shared Memory:
m 0 0x50000d43 --rw-r--r-- root root
m 501 0x1e90c97c --rw-r----- oracle dba
#ipcs |grep oracle|awk '{print $2}
501
刪除ipc(清除共享內(nèi)存信息)
ipcrm -m|-q|-s shm_id
%ipcrm -m 501
for i in `ipcs |grep oracle|awk '{print $2}'`
do
ipcrm -m $i
ipcrm -s $i
done
ps -ef|egrep "ora_|asm_"|grep -v grep |grep -v crs|awk '{print $2}' |xargs kill -9
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