Note:
For more information about significant updates in 12.2.1.2.0, see New and Changed Features in 12c (12.2.1.2) in Administrator's Guide for Oracle HTTP ServerThe following sections describe known issues:
Issues Resolved, describes known issues in 12c (12.1.x) that have been resolved in Oracle HTTP Server 12c (12.2.1).
This issue applies to WLS plug-ins for Apache 2.2 on Windows only (not applicable for OHS or any other Listeners/Web Servers).
If an IPv6 address is specified for WebLogicHost/WebLogicCluster parameter, then WLS plug-in may be unable to resolve this IPv6 address. This is due to a bug in the APR library that is shipped Apache httpd 2.2.x (underlying APR library, libapr-1.dll), and is resolved in Apache httpd 2.2.24.
To upgrade your Fusion Middleware environment (and OHS) to 12.2.1 from an earlier release, follow the instructions in Upgrading with the Upgrade Assistant. If you are upgrading a collocated Oracle HTTP Server setup (not a standalone installation), then you must perform some manual steps after you complete the Upgrade Assistant. For detailed information about these steps, see Upgrading from Earlier Releases of Oracle HTTP Server in Administering Oracle HTTP Server.
This section contains descriptions of unresolved issues known to exist in Oracle HTTP Server 12c (12.2.1). The following sections describe these issues:
In the online Help text for this page, the following content applies:
In the console, the updated value of attributes is displayed even when the changes made in edit Session have not been activated.
This is not the case with the list of enabled modules displayed on the Server Configuration Page. It displays only those modules which are present under <DOMAIN_HOME>/config/fmwconfig/components/OHS/<instanceName>/moduleconf and does not include the modules that were enabled or disabled in the current session that is not yet activated.
IBM-AIX users continuously hitting a web application that has many users (for example, greater than 400) through Oracle HTTP Server might experience a large error log being generated. This is most likely a tuning issue that can be corrected by updating certain IBM-AIX system parameters and Oracle HTTP Server tuning parameters, as described as shown in the following examples.
For AIX system parameters:
In /etc/security/limits, should have the following parameters:
nofiles = -1 nofiles_hard = -1
In /etc/rc.net, should have the following parameters:
/usr/sbin/no -o sb_max=6192000 /usr/sbin/no -o tcp_sendspace=4096000 /usr/sbin/no -o tcp_recvspace=4096000 /usr/sbin/no -o udp_sendspace=65536 /usr/sbin/no -o udp_recvspace=655360 /usr/sbin/no -o rfc1323=1 /usr/sbin/no -o ipqmaxlen=150 /usr/sbin/no -o clean_partial_conns=true
You will need to reboot your machine.
For Oracle HTTP Server Configuration:
In mod_wl_ohs.conf, should look like the following: example:
LoadModule weblogic_module "${PRODUCT_HOME}/modules/mod_wl_ohs.so"
# This empty block is needed to save mod_wl related configuration from EM to this file when changes are made at the Base Virtual Host Level
<IfModule weblogic_module>
# WebLogicHost <WEBLOGIC_HOST>
# WebLogicPort <WEBLOGIC_PORT>
# MatchExpression *.jsp
WebLogicCluster <host-name>:<port>,<host-name>:<port>,<host-name>:<port>
ConnectTimeoutSecs 99999 //[Optional parameter]
WLIOTimeoutSecs 99999 //[default value 300]
WLSocketTimeoutSecs 99999 //[default value 2]
MatchExpression *
<Location /diagservlet>
# SetHandler weblogic-handler
WLSRequest On
WebLogicCluster
<host-name>:<port>,<host-name>:<port>,<host-name>:<port>
# PathTrim /weblogic
# ErrorPage http:/WEBLOGIC_HOME:WEBLOGIC_PORT/
</Location>
</IfModule>
In httpd.conf, set the following:
<IfModule mpm_worker_module>
-
-
-
MinSpareThreads 200 [default value 25]
MaxSpareThreads 800 [default value 75]
-
-
-
-
</IfModule>
If you attempt to obtain metrics when Oracle HTTP Server is not running, DMS will display an incorrect message on displayMetricTables.display:
MetricTables(servers='ohs1',servertype='OHS') Traceback (innermost last): File "<console>", line 1, in ? File "/scratch/oracle/Middleware/oracle_common/common/wlst/OracleDMS.py", line 67, in displayMetricTables File "/scratch/oracle/Middleware/oracle_common/common/script_handlers/oracle dms_handler.py", line 1105, in oracledmsDisplayMetricTables File "/scratch/oracle/Middleware/oracle_common/common/script_handlers/oracle dms_handler.py", line 648, in oracledmsHandleException NameError: ora_mbs
In the standalone mode, there is no automatic port allocation for Oracle HTTP Server instances.
WebLogic Server supports these default roles: Admin, Deployer, Operator, and Monitor. In previous release, the Deployer role was supported in the JMX Framework and Fusion Middleware Control.
The user of the Deployer role will be able to log in to Fusion Middleware Control. For the particular page or integrator area, whether or not the Deployer role should be enabled, depends on the page's functionality and Deployer role privileges. It is up to the page or integrator owner (such as Oracle HTTP Server, IDM, and so on) to decide. Oracle HTTP Server does not support the Deployer role since this role does not make sense for the proxy tier such as Oracle Traffic Director or Oracle HTTP Server.
There is an intermittent problem in setting the MPM Name value of the Performance Directives page of Fusion Middleware Control.
An error message appears and displays the text:
Error Setting performance Directives
Workaround:
If you encounter this error, retry the operation until it succeeds.
After a successful collocated OHS installation on the HPIA64 platform, the OHS startup metrics will fail to load if you restart the OHS instance through the Oracle Enterprise Manager Fusion Middleware Control console. You might get errors like: "Metrics are currently unavailable", or "Metrics are not configured."
Workaround:
To resolve this issue, logout and log in from Oracle Enterprise Manager Fusion Middleware Control console once the OHS starts.
| Issue | Description | Reported In OHS Version |
|---|---|---|
|
Start and Stop scripts require directory write permission |
The startComponent.sh and stopComponent.sh scripts fail when executed from a directory without write permission. |
12.1.3.0.0 |
|
Oracle HTTP Server Instance fails To load mod_cgid |
While launching Oracle HTTP Server instance, this message appears:
in Oracle HTTP Server Instance log while loading the cgid module (mod_cgid). This message indicates that the mod_cgid is not loaded because the cgisock log file path length exceeds the actual character array length of sun_path variable defined in /usr/include/sys/un.h. |
12.1.3.0.0 |
|
Bad CLASSPATH environment variable can break WLST |
A bad CLASSPATH environment variable can block the WebLogic Scripting Tool (WLST) from starting. If a bad CLASSPATH is set in your environment variables and you attempt to start WLST, you might see a message like:
|
12.1.3.0.0 |
|
Oracle HTTP Server Configuration Assistant Launcher Fails on Solaris 5.10 |
While creating an Oracle HTTP Server domain, |
12.1.3.0.0 |
|
Disable SSL security protocols |
In several places, the Administering Oracle HTTP Server12c documentation discusses the SSL version 3 (SSLv3) security protocol. Because of security concerns, Oracle strongly recommends that you disable the SSLv3 security protocol from Oracle HTTP Server. |
12.1.3.0.0 |
|
Installing Oracle HTTP Server on Oracle Linux 7 environments |
Oracle HTTP Server 12c (12.1.3) can be installed into Oracle Linux 7 (OEL7) environments only if you run the Oracle Universal Installer (OUI) from the command line with the
|
12.1.3.0.0 |
|
Creating Instance Named adminserver Throws Exception |
If you try to create an instance with the name adminserver, Oracle HTTP Server throws an exception post after which you will not be able to create instances, even if they have valid names. Therefore, do not attempt to create instances that use the same name as a given administration server. |
12.1.2.0.0 |
|
SSLWallet Directive in |
When updating the SSL wallet in Fusion Middleware Control, the SSLWallet directive in |
12.1.2.0.0 |
|
Create Log Directory Manually When Diagnosing Startup Failures |
If an Oracle HTTP Server instance does not start and has not been started before, manually create the directory |
12.1.2.0.0 |
|
The order of attributes in the SSL certificate DN has been corrected. |
In 12.1.x releases of Oracle HTTP Server, when the SSL certificate DN was queried using the CGI interface, the order of attributes of the DN was reversed from: Country, location, Organisation, Organisational Unit, Common Name, Email to: Email, Common Name, Organisational Unit, Organisation, Location, Country This has been corrected in the 12.2.1 release. |
12.1.2.0.0 |
|
Using shutdown() without parameters shuts down WebLogic Server |
This is "as designed". As per the WLST documentation, this argument(name) defaults to the server to which WLST is currently connected |
12.1.2.0.0 |
|
Multiple WLST versions |
Use the wlst.sh from $ORACLE_HOME/oracle_common/common/bin instead of ORACLE_HOME/ohs/common/bin. |
12.1.2.0.0 |
|
nmStart(), nmServerStatus(), and nmKill() require ServerType parameter |
This is "as designed". Please refer to the WLST documentation which clearly says the ServerType defaults to the server to which WLST is currently connected |
12.1.2.0.0 |
|
Warning appears if no Oracle HTTP Server instance is created |
This issue has been resolved. |
12.1.2.0.0 |
|
Creating an instance named "adminserver" throws an exception |
Do not attempt to create instances that use the same name as a given administration server. |
12.1.2.0.0 |
|
SSLWallet directive in ssl.conf might be saved Incorrectly |
This issue has been resolved. |
12.1.2.0.0 |
|
CONFIG_FILE_PATH setting for apxs in a standalone domain |
If CONFIG_FILE_PATH is not set before invoking apxs, the error message might provide incorrect information for setting CONFIG_PATH. For the proper setting of CONFIG_FILE_PATH, see Using the apxs Command to Install Extension Modules in Administering Oracle HTTP Server |
12.1.2.0.0 |
|
Backslashes in paths in ohs.plugins.nodemanager.properties must be escaped |
Escape characters are no longer required. |
12.1.2.0.0 |