redhat，【Allocating and attaching to shared memory...FAILED】

czyf2001 发表于 2007-11-21 21:12

OS:
Linux yucheng 2.6.9-42.EL #1 Wed Jul 12 23:16:43 EDT 2006 i686 i686 i386 GNU/Linux

物理内存：512M

su - informix ;
ulimit -a显示如下：

time(cpu-seconds) unlimited
file(blocks)       unlimited
coredump(blocks) 0
data(kbytes)       unlimited
stack(kbytes)    300000
lockedmem(kbytes) 32
memory(kbytes)    unlimited
nofiles(descriptors) 1024
processes          4544

修改了部分onconfig参数后：

yucheng:/home/informix/etc>oninit -v
Checking group membership to determine server run modesucceeded
Reading configuration file '/home/informix/etc/onconfig'...succeeded
Creating /INFORMIXTMP/.infxdirs ... succeeded
Creating infos file "/home/informix/etc/.infos.demo_on" ... "/home/informix/etc/.conf.demo_on" ... succeeded
Writing to infos file ... succeeded
Checking config parameters...succeeded
Allocating and attaching to shared memory...FAILED
oninit: Fatal error in shared memory creation

请问该从哪里来解决呢？
谢谢！

czyf2001 发表于 2007-11-21 21:14

已经修改为：
LOGSIZE       200          # Logical log size (Kbytes)
# Shared Memory Parameters

LOCKS       2000          # Maximum number of locks
#BUFFERS             5000          # Maximum number of shared buffers
BUFFERS       500          # Maximum number of shared buffers
NUMAIOVPS                   # Number of IO vps
PHYSBUFF    32          # Physical log buffer size (Kbytes)
LOGBUFF       32          # Logical log buffer size (Kbytes)
CLEANERS    1             # Number of buffer cleaner processes
SHMBASE       0x44000000L # Shared memory base address
#SHMVIRTSIZE 8192          # initial virtual shared memory segment size
SHMVIRTSIZE 2048          # initial virtual shared memory segment size
#SHMADD       8192 # Size of new shared memory segments (Kbytes)
SHMADD       2048          # Size of new shared memory segments (Kbytes)
#EXTSHMADD    8192 # Size of new extension shared memory segments (Kbytes)
EXTSHMADD    2048 # Size of new extension shared memory segments (Kbytes)
SHMTOTAL    0             # Total shared memory (Kbytes). 0=>unlimited
#CKPTINTVL    300          # Check point interval (in sec)
CKPTINTVL    3600          # Check point interval (in sec)
LRUS          8             # Number of LRU queues
LRU_MAX_DIRTY 60          # LRU percent dirty begin cleaning limit
LRU_MIN_DIRTY 50          # LRU percent dirty end cleaning limit
TXTIMEOUT    300          # Transaction timeout (in sec)
STACKSIZE    32    # Stack size (Kbytes)

这几个参数改了还是不行啊.....

liaosnet 发表于 2007-11-22 14:20

1/看一下日志~~online.log里的内容.

2/ps -ef |grep oninit 看一下是否有oninit进程没有关闭.

ivhb 发表于 2007-11-22 16:25

ipcs -m
看看是否当前已经有informix的共享内存。
对了，oninit进程应该是以root权限执行的。

philein 发表于 2007-11-26 17:34

修改操作系统核心参数文件/etc/sysctl.conf
需要根据内存大小增加一行:
kernel.shmmax=XXXXXXXX
如果全用来做数据库大小一般为物理内存的70-80%

czyf2001 发表于 2007-11-27 11:46

将onconfig中的：
#SHMBASE 0x44000000L # Shared memory base address
修改为
SHMBASE 0x10000000 # Shared memory base address
就可以了！
呵呵，看来是一些参数不合理！

liaosnet 发表于 2007-11-27 13:57

原帖由 czyf2001 于 2007-11-27 11:46 发表 http://bbs.chinaunix.net/images/common/back.gif
将onconfig中的：
#SHMBASE 0x44000000L # Shared memory base address
修改为
SHMBASE 0x10000000 # Shared memory base address
就可以了！
呵呵，看来是一些参数不合理！
建议使用onconfig.std的默认配置~~~

liuchg 发表于 2007-11-27 16:42

回复 #2 czyf2001 的帖子

以前我也碰到过这样的问题,好像是共享内存设置不对.

jincy1218 发表于 2007-12-03 17:34

哈哈，这个问题，应该是你初始化的rootdbs 没有赋予660权限。
chmod 660xxxx(你对应的rootdbs文件，在$informixdir/etc/onconfig.xxx中配置的)

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redhat，【Allocating and attaching to shared memory...FAILED】

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