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Please, can someone deliver some cloud “stuff” to Oracle Support?

Can you tell me what is wrong with this screen capture that I took on MOS and is part of my Service Request?

Right now, I’m waiting SR analyst to download and install Oracle software, so that he can run query provided by us. I hope that they have at least a decent bandwidth, if they’re not able to use provisioned virtual machines in the first place. And that is the same company touting their cloud offerings. LOL.

20th anniversary

When I started to work for a current employer in 1995 the company run a tiny Oracle 6 production database on IBM mainframe (OS/390). Nothing serious or big. The majority of data processing at that time was still done in Cobol and TPL. Development with Oracle*Case of the new state Business registry however started on LAN, with Oracle 7 on Netware 4. Yes. Life. Was. Exciting. Recovery from a server crash was almost a daily routine. But for a starter like me, it was definitely fun and exciting working environment.
In the mid 90’s company was using a myriad of OS’s (OS/390, Netware 3 and 4, OS/2, DOS, Windows 3.1, Windows 3.11, Windows NT 3.5, SCO Unix, IRIX….but not Windows 95!). We used two network protocols, primary one was IPX/SPX and secondary was TCP/IP (Oracle Listener was listening on IPX/SPX adapter). It was a ZOO.
After Microsoft released Windows NT 4 at the end of 1996, the decision was made to consolidate OS environment on NT 4 at every level, from laptops, desktops to the servers. With one exception. Two main file servers were left to run on Netware.
Why not Unix? Due to the lack of skilled workforce with strong Unix skills on the market it was somehow logical choice to pick a mainstream OS player.
So, on March 1997 we put our first non-mainframe production Oracle database in use. It was IBM PC Server 320 with two Pentium 133Mhz processors, a whooping 128MB of RAM and four 2GB Fast Wide SCSI disks. We run NT 4 and Oracle 7.3. Backups were done with ArcServe and HP Surestore DAT tape library. This first PC based host was (predictably) named ORANT.

At that time we were considered as weirdos (perhaps we still are?), because no one run Oracle production on Windows. Local Oracle representatives used us as a reference whenever someone asked them if anyone is using Oracle on NT or how stable Oracle is on NT. Honestly, from 1997-1999, it was not as stable as we wished to be (regular monthly reboots were needed), but it was certainly a giant leap forward compared to Oracle on Netware. The real stability came with Windows 2000/2003. Twenty years later our production still runs on Windows Servers, but this is gonna to change soon. Not because of the lack of stability (modern Windows Servers are rock solid, and we can prove it;) but because of clear Tux technology dominance and advantages in the Cloud/OSS era.

Anyway, I took a couple of screenshots from my VirtualBox guest, running Windows NT 4 (SP1) and Oracle 7.3.4:

For the record: installation of the Windows NT 4 took ~10 minutes. Installation of Oracle 7.3.4 with Replication option took another ~10 minutes (including building a database). It took 1.3GB of disk space for both OS, RDBMS and sample database. For comparison, Oracle 12c R2 ISO file with all the components is 9.7 GB.

Unicode and Oracle SQLcl…on Windows — solved

I was struggling with sqlcl on Windows 7 to properly display our umlauts (we’re using Windows 7 desktops with NLS_LANG=SLOVENIAN_SLOVENIA.EE8MSWIN1250 setup in the registry — note: sqlcl is not reading this variable).
When I read Jeff Smith blog post “Unicode and Oracle SQLcl…on Windows” I though that my problem was solved. Someone reading an article without reading the comments would assume that sqlcl works out of the box on Windows with proper UTF-8 support, which does not. Partly due to the omission of proper parameter in supplied sql.bat file, but mostly because of the state of cmd.exe (powershell.exe) in versions of Windows 7 and below, Windows 10 is much better.

In this demo we’re using Windows 7 EE (Windows 10 EE), Oracle 12c R1 and sqlcl-4.2.0.16.308.0750-no-jre.zip.

First, we created test table called UMLAUT in SQL*Developer and inserted our umlauts:

sqlcl-utf8-01

Then we run a query from this table with sqlcl. Note an extra line between the rows returned from the query….

sqlcl-utf8-02

ok, how about writing some umlauts on the command line….

sqlcl-utf8-03

Well, we can write umlauts but console won’t show us what we wrote (note a presence of squares)…nevertheless the result of the query is correct.

What we can do? Well, for a start we need to patch the officially supplied sql.bat script.

Open sql.bat and replace line

SET STD_ARGS=-Djava.awt.headless=true -Xss10M

with

SET STD_ARGS=-Djava.awt.headless=true -Xss10M -Dfile.encoding=UTF-8

But don’t celebrate yet…what we achieved is this….

sqlcl-utf8-04

We still have an extra line between the rows, which is annoying, but at least we can see what we wrote in the WHERE condition. Plus an extra square :-)…if you’re “lucky” Windows 7 user.
However, above patch is enough on Windows 10, where, both writing of umlauts and properly displaying the records (without extra blank line) works as expected….

sqlcl-utf8-05

The only “workaround” that we found for Windows 7 clients is to simply forget about official console applications (cmd.exe and powershell.exe) as a “host” for sqlcl and use some alternative. We found out that ConEMU works great…(patch in the sql.bat is of course still mandatory until sqlcl guys do this for you).

sqlcl-utf8-06

And what about the suggestion that we can tweak the registry and permanently change the console application (cmd.exe) code page to UTF? Don’t do this, because you’ll disable some non-java applications, including SQL*Plus…look what happens with sqlplus.exe….

sqlcl-utf8-07

Installing Standalone Oracle Http Server 12c R2 (12.2.1.1) on Windows 2012 R2

IMPORTANT!


According to MOS note Oracle Web Tier – Statement of Direction (Doc ID 1576588.1) Oracle mod_plsql in Oracle HttpServer is deprecated as of version OHS 12.1.3.
If you’re reading this to learn how to install OHS because your application depends on mod_plsql functionality, then we have a bad news for you. Oracle removed mod_plsql from OHS 12.2. So, the best help that we can give you is our reference installation note for OHS 12.1.3 installation on Windows 2012 R2.
Oracle recommends to move to Oracle REST Data Services (ORDS) (formerly known as Apex Listener) on top of Oracle WebLogic, Oracle Glassfish or Apache Tomcat.
Of course, if you’re still interested in installation procedure for OHS 12.2 on top of Windows 2012 R2 keep reading….


Once again, we got a brand new server with Windows 2012 R2, on which we wanted to install standalone Oracle HttpServer 12c R2 (12.2.1.1.0). If you read our post from the last year covering Oracle HttpServer 12.1 installation on Windows 2012 R2, you already know that we’re a big fans of Oracle end user friendliness and admiration of Oracle engineering capabilities to transform a mouse to an elephant. Let’s see if this crap excellent piece of software installs as smooth in Release 2 as it did in Release 1.

Find and download fmw_12.2.1.1.0_ohs_win64_Disk1_1of1.zip from OTN, at the time of this writing you should see something like this:

OHS12cR2_otn

Unpack fmw_12.2.1.1.0_ohs_win64_Disk1_1of1.zip and run setup_fmw_12.2.1.1.0_ohs_win64.exe.

Setup will check the system prerequisites, you should be fine if you’re installing on Windows 2012 R2. Now, we’ll show you some screenshots from our installation with comments whenever we think they’re necessary. Basically, we left most options at default (apart from changing the Oracle home).

OHS12cR2_install_01

OHS12cR2_install_02

OHS12cR2_install_03

OHS12cR2_install_04

OHS12cR2_install_05

OHS12cR2_install_05a

According to Oracle documentation:
On the Windows platform, Oracle HTTP Server requires Microsoft Visual C++ run-time libraries to be installed on the system.
To meet this system requirement for Oracle HTTP Server, download the Visual C++ Redistributable for Visual Studio 2012
software from the following URL: https://www.microsoft.com/en-us/download/details.aspx?id=30679D

After we downloaded and installed Visual C++ (VS 2012) redistributable we hit the Rerun button and the check completed successfully…

OHS12cR2_install_05b

OHS12cR2_install_06

OHS12cR2_install_06a

OHS12cR2_install_07

OHS12cR2_install_08

OHS12cR2_install_08a

OHS12cR2_install_08b

OHS12cR2_install_08c

OHS12cR2_install_08d

As you can notice, there is no screenshot of step #9. After we clicked Next on Step #8 the new dialog window opened for a second and immediately closed. Perhaps it was just us….fortunately, we could made an educated guess that the last screen should likely be an informative one, like the one that we saw during OHS 12c R1 installation:

OracleHTTP-12c-08

…suggesting that fun is not over yet and that you need to create domain with the Configuration Wizard. Start configuration Wizard from:

D:\ORACLE\OFM\OFM12\oracle_common\common\bin\config.cmd

and configure Oracle Http Server in standalone mode…
OHS12cR2_ConfigWizard_01

OHS12cR2_ConfigWizard_02

OHS12cR2_ConfigWizard_03

OHS12cR2_ConfigWizard_04

OHS12cR2_ConfigWizard_05

OHS12cR2_ConfigWizard_06

OHS12cR2_ConfigWizard_07

OHS12cR2_ConfigWizard_08

OHS12cR2_ConfigWizard_08a

OHS12cR2_ConfigWizard_09

If you check Windows services at this time you’ll see, well, nothing. We need to create service for Node Manager before we can start Http server.
Note that we installed Oracle HttpServer 12c R2 in ORACLE_HOME: D:\ORACLE\OFM.

First open command prompt (cmd) wit “Run as Administrator” and set the path before you run installNodeMgrSvc.cmd:

 
set DOMAIN_HOME_BIN=D:\ORACLE\OFM\OFM12\user_projects\domains\base_domain\bin
set PATH=%DOMAIN_HOME_BIN%;%PATH%
 
installNodeMgrSvc.cmd

And if everything has gone well you should see the message at command prompt, with the line:

...
Oracle Weblogic base_domain NodeManager (D_ORACLE_OFM_OFM12_wlserver) installed.
...

Script installeNodeMgrSvc.cmd created a new service, that reads, don’t hold your breath….:

"Oracle Weblogic base_domain NodeManager (D_ORACLE_OFM_OFM12_wlserver)"

with path to the executable like this:

D:\ORACLE\OFM\OFM12\wlserver\server\bin\wlsvcX64.exe

Yes, they probably set a World record for the length of a Windows service. What a schmucks.
The service is installed using the default Node Manager listen port (5556). By default Node Manager Listens only on localhost.

Now, we can finally start Oracle HttpServer 12c R2. First, make sure that Node manager service is running and if it’s not then start “Oracle Weblogic base_domain NodeManager (D_ORACLE_OFM_OFM12_wlserver)”.

You can START Oracle HttpServer 12c R2 on command line with:


set DOMAIN_HOME_BIN=D:\ORACLE\OFM\OFM12\user_projects\domains\base_domain\bin
set PATH=%DOMAIN_HOME_BIN%;%PATH%
startComponent ohs1

You’ll be asked to enter password for Node Manager which you entered on screen 6 of Oracle Fusion Middleware Configuration Wizard.

You can STOP Oracle HttpServer 12c R2 on command line with:


set DOMAIN_HOME_BIN=D:\ORACLE\OFM\OFM12\user_projects\domains\base_domain\bin
set PATH=%DOMAIN_HOME_BIN%;%PATH%
stopComponent ohs1

There is also a WLST tool (wlst.cmd) that allow us to manipulate with running OHS.

Using WLST to control OHS:


Open WLST D:\ORACLE\OFM\OFM12\oracle_common\common\bin\wlst.cmd:
 
Initializing WebLogic Scripting Tool (WLST) ...
 
Welcome to WebLogic Server Administration Scripting Shell
 
Type help() for help on available commands
 
wls:/offline> nmConnect('administrator','mysecretpassword','localhost','5556','base_domain','D:/ORACLE/OFM/OFM12/user_projects/domains/base_domain','ssl')
 
// status
wls:/nm/base_domain> nmServerStatus(serverName='ohs1', serverType='OHS')
 
RUNNING
 
// soft restart
wls:/nm/base_domain> nmSoftRestart(serverName='ohs1', serverType='OHS')
 
// stop OHS
wls:/nm/base_domain> nmKill(serverName='ohs1', serverType='OHS')
Killing server ohs1 ...
Successfully killed server ohs1
 
// status
wls:/nm/base_domain> nmServerStatus(serverName='ohs1', serverType='OHS')
 
SHUTDOWN
 
// start
wls:/nm/base_domain> nmStart(serverName='ohs1', serverType='OHS')

And finally, let’s see where is the config file for httpd. According to the Oracle Http 12c documentation there are runtime and staging config files and we should always edit staging config file(s). In our example the config file location is:

Domain home bin        : D:\ORACLE\OFM\OFM12\user_projects\domains\base_domain\bin
httpd.conf             : D:\ORACLE\OFM\OFM12\user_projects\domains\base_domain\config\fmwconfig\components\OHS\ohs1 

Final Test….open IE and go to http://localhost:7777:

OHS12cR2_final_http_test

HTTP 400 error Too many arguments passed in

In one of our Apex-like application user reported a HTTP 400 error after clicking on a button that invokes PL/SQL procedure. At first glance I suspected a missing execute privilege but the quick look at Oracle HTTP log revealed the true reason:
X:\ORACLE\OFM\OFM11\instances\instance1\diagnostics\logs\OHS\ohs1\ohs1.log)

[2016-05-04T10:58:23.9709+02:00] [OHS] [ERROR:32] [OHS-9999] [core.c] [host_id: ACMEHOST] [host_addr: 10.10.10.11] [pid: 5048] [tid: 1816] [user: SYSTEM] [VirtualHost: main]  MODPLSQL-00359: mod_plsql: /sales/!appschema.orderentry.program HTTP-400 Too many arguments passed in(2002). Limit is 2000, referer: http://ohs.acme.com/sales/!appschema.orderentry.program

-> HTTP-400 Too many arguments passed in(2002). Limit is 2000
.. so, the reason for the error is the default limit in mod_plsql on the number of parameters that can be passed to the pl/sql procedure.

A search on MOS confirmed by suspicion, please refer to:

Modplsql application throws “HTTP-400 Too many arguments passed in. Got 7076 parameters. Upper limit is 7000” (Doc ID 386946.1)

After adding directive “PlsqlMaxParameters 4000” to the plsql.conf and restarting the http listener (cmd> opmnctl restartproc process-type=OHS), the problem was solved.
Our plsql.conf looks like this:

X:\ORACLE\OFM\OFM11\instances\instance1\config\OHS\ohs1\moduleconf\plsql.conf

# ============================================================================ 
#                       mod_plsql configuration file                           
# ============================================================================ 
# 1. Please refer to plsql.README for a description of this file               
# 2. Parameters in this file have to be configured manually                    
# ============================================================================ 

# Configure Oracle HTTP Server to load mod_plsql
LoadModule plsql_module ${ORACLE_HOME}\ohs\modules\mod_plsql.dll

# Load in mod_plsql directives only if mod_plsql is loaded
<IfModule mod_plsql.c>

# ============================================================================ 
# Global Settings Section : Directives that apply to all DADs
# ============================================================================ 

PlsqlLogEnable on

PlsqlLogDirectory "${ORACLE_INSTANCE}\diagnostics\logs\${COMPONENT_TYPE}/${COMPONENT_NAME}"

# 4.5.2016 -- (see MOS ID 386946.1)

PlsqlMaxParameters 4000

# PlsqlIdleSessionCleanupInterval 15 (default)

# PlsqlDMSEnable On (default)

# ============================================================================ 
# Database Access Descriptors Settings Section
# ============================================================================ 
include "${ORACLE_INSTANCE}\config\${COMPONENT_TYPE}\${COMPONENT_NAME}\mod_plsql\dads.conf"

# Custom DAD's for Acme.com
include "${ORACLE_INSTANCE}\config\${COMPONENT_TYPE}\${COMPONENT_NAME}\mod_plsql\marvel.conf"

# ============================================================================ 
# Cache Settings Section
# ============================================================================ 
include "${ORACLE_INSTANCE}\config\${COMPONENT_TYPE}\${COMPONENT_NAME}\mod_plsql\cache.conf"

</IfModule>