SM21 Error Operating system call gethostbyname failed

[Former Member]

Hello,

While monitoring our SM21 error, we encounter the following error.

Operating system call gethostbyname failed (error no. 2 )

Communication error, CPIC return code 020, SAP return code 497

> CPI-C function: CMINIT(SAP)

This happens in only in my application servers and not in the CI.

This comes for only one communnication user.

We have 2 clients in the system and this error is noticed in only one of the clients.

Can you pls help, in finding the solution.

Regards

siddhartha

[markus_doehr2]

gethostbyname() is an operating system function that tries to resolve a name to an IP addresse. The affected machine is either not in the DNS or hosts file or the DNS configuration is wrong.

Markus

[Former Member]

Hi Markus,

Thanks for the reply, can you please tell me if this is possible for only application server?

also can you please let me know where the DNS configuration is done in the SUN Solaris platform.

rgds

sid

[markus_doehr2]

Use

/etc/resolv.conf

(compare the content)

Marmkus

[Former Member]

Hi Markus,

I just now checked the /etc/resolv.conf and did not find any host name. There are only IP address'es mentioned there which are valid.

rgds, sid

[markus_doehr2]

> I just now checked the /etc/resolv.conf and did not find any host name.

There are not hostnames in /etc/resolv.conf, this is the machines resolver configuration, not a hosts list, enter "man resolv.conf" and read what the file content means.

> There are only IP address'es mentioned there which are valid.

The SAP system can't find an addresse for a hostname, that's why you get this error message in the syslog. The reason for this must be found locally on the machine in either the DNS/resolver configuration or in the machines /etc/hosts file, depending on which mechanisms you use.

Markus

[Former Member]

Hi Markus,

The argument for gethostbyname() is a host name. can you pls tell me, from where the host name given as the argument referred from. I am new to Sun Solaris platform.

rgds

sid