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Re: Newbie question: fresh default Mac OSX install

Posted By: Jonathan Leffler
Date: Monday, 7 May 2012, at 7:51 p.m.

In Response To: Newbie question: fresh default Mac OSX install, co (Laird Nelson)

Although I'm responding to Laird's original message, I've looked at many
(though not necessarily all) of the subsequent messages about the problem.

On Mon, May 7, 2012 at 8:59 AM, Laird Nelson <ljnelson@gmail.com> wrote:

> I have a fresh Informix 11.70 installation on Mac OSX.
>
> I can connect to the sysmaster database using dbaccess, so I know that in
> general I've got the system up and running. I haven't done anything other
> than simply start the database.
>
> I'm now attempting to hook my JDBC client up to it. I have experience
> building Informix JDBC URL strings, so I don't believe I am making a
> boneheaded error.
>
> I am getting connection refused errors.
>
> My URL is as follows:
>
>
> jdbc:informix-sqli://localhost:15222/sysmaster:INFORMIXSERVER=ol_informix1170
>
> I am connecting as user informix with the admin password I set up at
> installation time.
>
> Port 15222 is open to all computers on my network according to my firewall.
>
> I have not made any further modifications to /etc/services or
> $INFORMIX_HOME/etc/onconfig.ol_informix1170 or
> $INFORMIX_HOME/etc/sqlhosts.ol_informix1170.
>
> I would suspect that perhaps TCP connectivity is not enabled (after all,
> dbaccess works, but I'm guessing does not use TCP), but I see the following
> NETTYPE entries in my onconfig file:
>
> NETTYPE ipcshm,1,50,CPU
> NETTYPE onsoctcp,1,150,NET
> NETTYPE drsoctcp,1,150,NET
>
> After doing all this research, I find that I'm out of gas. What next?
>

There are a couple of details missing. As has already been commented and
analyzed, one aspect of the problem is the sqlhosts file; one which I've
not seen so much discussion about is the DBSERVERNAME and DBSERVERALIASES
entries in the $ONCONFIG file.

I changed my MacBook Pro machine a while ago, and did a transfer rather
than a clean install of my Informix environment. Nevertheless, at some
point (memory is fuzzy now), I ran into a problem that I couldn't do a
default connection without username and password. I fudged around it for
... months. Now I've gone and cleaned it up (thanks, Laird, for driving me
in the right general direction).

So, what is my current setup? IDS 11.70.FC2 (yes, I've been lazy).
Machine is 'Isis' (capital letter I) so normally my server would be
'isis_17', for example; the old machine (still used by other members of the
family) was 'osiris'. Because things were transferred, my server name is
'osiris_17'.

My Informix-related environment is:

DBDATE=Y4MD-
DBEDIT=vim
DYLD_LIBRARY_PATH=/usr/lib:/usr/informix/11.70.FC2/lib:/usr/informix/11.70.FC2/lib/esql
INFORMIXDIR=/usr/informix/11.70.FC2
INFORMIXSERVER=osiris_17
INFORMIXTERM=terminfo
IXD=/usr/informix/11.70.FC2
LANG=en_US.UTF-8
LD_LIBRARY_PATH=/usr/lib:/usr/gnu/lib:/usr/gcc/v4.7.0/lib
ONCONFIG=onconfig.osiris_17
PATH=.:/Users/jleffler/bin:/usr/informix/11.70.FC2/bin:/usr/gcc/v4.7.0/bin:/usr/informix/11.70.FC2:/Users/jleffler/perl/v5.14.1/bin:/usr/gnu/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
TERM=xterm-color

Clearly, this is not an out-of-the-box install; I've created myself an
INFORMIXDIR under /usr/informix with symlinks to the files in
/Applications/ibm/informix/IDS-11.70.FC2/ (so even under
/Applications/IBM/informix, I've used a version-specific sub-directory, so
I can still have IDS 11.70.FC1 installed, for example). However, this just
explains what you see in my environment; it works fine.

The relevant lines in $ONCONFIG file are:

SERVERNUM 17
DBSERVERNAME osiris_17
DBSERVERALIASES osiris_17_shm,osiris_17_tcp,osiris_17_str
NETTYPE ipcshm,1,50,CPU
NETTYPE ipcstr,1,50,CPU
NETTYPE soctcp,1,50,NET

The output from 'uname -a' is:

Darwin Isis 11.3.0 Darwin Kernel Version 11.3.0: Thu Jan 12 18:47:41 PST
2012; root:xnu-1699.24.23~1/RELEASE_X86_64 x86_64 i386 MacBookPro8,3 Darwin

The output from 'uname -n' is:

Isis

My sqlhosts file shows signs of confusion over time. It currently contains
this (except I've tagged the blocks with '# Block A' etc so that I can
discuss them):

# Block A
osiris_17 olsoctcp Isis.local 10170
osiris_17_tcp olsoctcp Isis.local 10171
osiris_17_shm olipcshm Isis.local osiris_17_shm
osiris_17_str olipcstr Isis.local osiris_17_str

# Block B
#osiris_17 olsoctcp Isis 10170
#osiris_17_tcp olsoctcp Isis 10171
#osiris_17_shm olipcshm Isis osiris_17_shm
#osiris_17_str olipcstr Isis osiris_17_str

# Block C
#osiris_17 olsoctcp localhost 10170
#osiris_17_tcp olsoctcp localhost 10171
#osiris_17_shm olipcshm localhost osiris_17_shm
#osiris_17_str olipcstr localhost osiris_17_str

# Block D
# osiris_17 - /usr/informix/11.70.FC2
#osiris_17 olsoctcp Osiris.local 10170
#osiris_17_tcp olsoctcp Osiris.local 10171
#osiris_17_shm olipcshm Osiris.local osiris_17_shm
#osiris_17_str olipcstr Osiris.local osiris_17_str

Up until I started investigating, Blocks A and B were not in the file,
Block C was uncommented and 'working' (but only up to a point), and Block D
was commented out. Block D was in use on my previous machine, Osiris, at
some point (and so was Block C, I think).

So, Block C 'worked' (and was in use for a number of months), but didn't
work very well. The administration via the command line was fine. But
simple connections to a database required a user name and password. Since
SQLCMD can use a file with database@server, user name and password
(SQLCMDPASSWORDS is the env var), I lazily edited that and enabled
connections which would automatically collect a username and password.

Checking things out just now, Block B allowed the server to come up.
However, although the shared memory and streams connections worked, the TCP
connections didn't (SQL -25595: Invalid message received during connection
attempt.).

When I switched to Block A in the sqlhosts file, all the server names allow
me to connect locally without a password, which is a distinct improvement.

Your machine name is quite long (26 characters if I counted correctly); you
don't want it to be much longer than that. IIRC, there's a limit of 31 or
32 on the host name, either imposed by Informix or perhaps even by the IETF.

I've not configured any DRDA protocol server alias (using the drsoctcp
protocol); I've not tried using the DRDA clients on Mac. Nor have I done
anything with JDBC, so your connection string info, Laird, may be useful
if/when I try.

--
Jonathan Leffler <jonathan.leffler@gmail.com> #include <disclaimer.h>
Guardian of DBD::Informix - v2011.0612 - http://dbi.perl.org
"Blessed are we who can laugh at ourselves, for we shall never cease to be
amused."

--e89a8f2348bf8a763c04bf7af221

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