Shared memory error

[cpmarvel]

Hi folks, Let me explain the whole thing. I´m trying to make informix to run on my play box that has no network. I read on the manuals that whithout network, I can use a loopback configuration and also a shared memory configuration. I´ve already used both types of configuration and still get the same error messages, although I don´t get any error messages when I oninit -ivy, this command runs successfully.

Any ideas?

Thanks in advance.

Marvel.

--------------------------------
- When I dbaccess and try to connect
25588 The appl process cannot connect to Dynamic Server 'informix'.
not such file or directory

- When I give the command:
onspaces -c -d root_chunk -p /usr/data/root_chunk -o 0 -s 30000
shared memory not initialized for INFORMIXSERVER 'informix'

- When I onmonitor and dbspaces:
Unable to attach to shared memory
ISAM error: Cannot attach to shared memory

------------------------------
My configuration is:

/opt/informix/etc/sqlhosts:
informix onsoctcp 127.0.0.1 informix_lop # For shared memory
informix onipcshm 127.0.0.1 dummy # For loopback

/etc/services:
informix_lop 1545/tcp

/etc/hosts
127.0.0.1 localhost
10.10.10.1 myplaybox

- To create dbspace I did:
cd /usr/data
cat /dev/null > root_chunk
chmod 660 root_chunk
chown informix:informix root_chunk

/opt/informix/etc/onconfig
ROOTNAME root_chunk
ROOTPATH /usr/data
MSGPATH /opt/informix/logs/online.log
TAPEDEV /dev/null
LTAPEDEV /dev/null
DBSERVERNAME informix
# Related to the following lines, I used NETTYPE ipcshm
# and tried it. After that, I changed it to soctcp and
# tried again.
NETTYPE ipcshm # I used this for share memory conf.
NETTYPE soctcp # I used this for loopback conf.
# Other parameters in this file I left as default.

- My environment variables are:
export TERM=xterm
export TERMCAP=/opt/informix/etc/termcap
export INFORMIXDIR=/opt/informix
export INFORMIXSERVER=informix
export ONCONFIG=onconfig
export PATH=$PATH:$INFORMIXDIR/bin

 

[vpshriyan]

Hi,

First make these changes in various files:

/opt/informix/etc/sqlhosts:
instance1 onipcshm 127.0.0.1 dummy # For shared mem conn.
instance2 onsoctcp 127.0.0.1 informix_lop # For network conn.

/etc/services:
informix_lop 1545/tcp

/etc/hosts
127.0.0.1 localhost

/opt/informix/etc/onconfig
DBSERVERNAME instance1
DBSERVERALIASES instance2
NETTYPE ipcshm,1,50,CPU

onmonitor -> Parameters -> Initialize and follow the instructions. After rootdbs got initialized, exit from the onmonitor menu. Change the mode of the instance to online fire: onmode -m

Immidiately after this the dbserver starts creating 2 backend databases, i.e., sysmaster and sysutils, confirm this by onstat -m

Regards,
Shriyan

 

[cpmarvel]

Shriyan,

Thanks for the reply. I followed the steps you told me, and after I initialize rootdbs I try onmode -m and get the following error:

shared memory not initialized for INFORMIXSERVER 'instance1'

Then I oninit -s to initialize shared memory and get the following error:

onmode: Cannot attach to shared memory . errno = 156

Do you have any ideas?

Thanks again,

Marvel.

 

[vpshriyan]

Marvel:

Please post latest message log file contents. Also post contents of oninit -v

Regards,
Shriyan

 

[cpmarvel]

Thanks for now...

I had a problem with the box, and I'll had to reinstall it.
As son as I do that, I'll send you the messages.

Thanks again.