3 Issues Affecting Linux for Oracle Database 18c
These topics contain last-minute features and changes for Linux for Oracle Database 18c.
- Unsupported Products for Linux
This topic describes products or features that are unavailable for Oracle Database 18c. - Product Support
This topic describes the supported products or features for Oracle Database 18c. - Linking Applications with Oracle Client Libraries for Linux
You must use the dynamic Oracle client libraries to link the client code on Linux. - Preinstallation Requirements for the Linux Platform
Refer to the installation guides for the preinstallation requirements for Oracle Database 18c. - Installation, Configuration, and Upgrade Issues for Linux
This topic describes information about issues that affect Oracle Database installation, configuration, and upgrade. - Open Bugs Affecting Linux
These topics contain last-minute features and changes for Oracle Database 18c.
3.1 Unsupported Products for Linux
This topic describes products or features that are unavailable for Oracle Database 18c.
In addition to the list of unavailable products or features in this release of Oracle Database 18c, the following product is not supported for Linux:
-
IPv6 Networks Support
The IPv6 based IP addresses to configure the private networks for a cluster is not supported on IBM: Linux on System z. It is currently under testing and the support will be announced after testing is successfully complete.
Refer to the list of unavailable products or features for all platforms in Oracle Database 18c.
See Also:
Parent topic: Issues Affecting Linux for Oracle Database 18c
3.2 Product Support
This topic describes the supported products or features for Oracle Database 18c.
The supported products or features are:
-
Database Smart Flash Cache Support
Database Smart Flash Cache is supported on Oracle Linux.
-
Oracle ACFS and Oracle ADVM Support
Although Oracle ADVM supports raw disks in Oracle Automatic Storage Management disk groups, Oracle ADVM device special files created through raw are not supported; Oracle ADVM only supports block device special files.
For the latest information about supported platforms and releases, see the Note 1369107.1 on My Oracle Support at https://support.oracle.com
-
Oracle ASM Filter Driver Support
Oracle Automatic Storage Management Filter Driver (Oracle ASMFD) is supported only on Linux x86-64.
-
Share-based Instance Caging
Share-based Instance Caging is supported on Oracle Linux.
Parent topic: Issues Affecting Linux for Oracle Database 18c
3.3 Linking Applications with Oracle Client Libraries for Linux
You must use the dynamic Oracle client libraries to link the client code on Linux.
Do not link the static Oracle client libraries.
Parent topic: Issues Affecting Linux for Oracle Database 18c
3.4 Preinstallation Requirements for the Linux Platform
Refer to the installation guides for the preinstallation requirements for Oracle Database 18c.
Parent topic: Issues Affecting Linux for Oracle Database 18c
3.5 Installation, Configuration, and Upgrade Issues for Linux
This topic describes information about issues that affect Oracle Database installation, configuration, and upgrade.
Parent topic: Issues Affecting Linux for Oracle Database 18c
3.5.1 Bug 28153162
After upgrading to Oracle Database 18c, Oracle Cluster Health Advisor (CHA) does not monitor databases that were configured in 12c Release 2 (12.2). This applies to standard cluster configurations only.
Workaround:
Manually re-enable monitoring all databases after an upgrade using the command:
GI_HOME/bin/chactl monitor database -db db_unique_name [-model model_name]
Repeat for all databases that need monitoring.
3.5.2 Bug 28237088
During the rollback from an 18.3 Release Update (RU) to Oracle Database 18c for Member Cluster, the following post-patch error occurs:
Database connect failed with: ORA-12154: TNS:could not resolve the connect identifier specified (DBD ERROR: OCIServerAttach)
Workaround:
Perform these 18.3 Release Update (RU) reapply steps immediately after the rollback to recover from post-patch rollback errors:
$GI_HOME/perl/bin/perl -I$GI_HOME/perl/lib -I$GI_HOME/crs/install $GI_HOME/crs/install/rootcrs.pl -prepatch -nonrolling -rollback
$GI_HOME/perl/bin/perl -I$GI_HOME/perl/lib -I$GI_HOME/crs/install $GI_HOME/crs/install/rootcrs.pl -postpatch -nonrolling -rollback
opatchauto rollback -nonrolling
3.5.3 Bug 28745602
Creation of Grid Naming Service (GNS) client data manifest file from a standalone cluster using the command srvctl export gns -clientdata <manifest_xml_file> -role client
fails with the following error:
"java.lang.StackOverflowError: operating system stack overflow
error message:
./srvctl export gns -clientdata /scratch/gnswrap.xml -role client Exception in thread "main" java.lang.StackOverflowError: operating system stack overflow
Workaround:
Update the srvctl
command by adding -Xmso2048k
to JAVA_STACK_SIZE
so that JAVA_STACK_SIZE="-Xss2048k -Xmso2048k
on IBM: Linux on System Z.
3.5.4 Bug 28897417
Installing 32-bit Oracle Database Client software on IBM: Linux on System Z fails with Java core dump and returns the following error:
Unhandled exception
Type=Segmentation error vmState=0x00052fff
Workaround:
Export the environment variable IBM_JAVA_OPTIONS
to -Xjit:disableInvariantArgumentPreexistence
and launch the installer.
For example,
$ export IBM_JAVA_OPTIONS="-Xjit:disableInvariantArgumentPreexistence"
$ runInstaller
3.6 Open Bugs Affecting Linux
These topics contain last-minute features and changes for Oracle Database 18c.
Parent topic: Issues Affecting Linux for Oracle Database 18c
3.6.1 Bug 21546793
When creating a database on Linux Container, Database Configuration Assistant (DBCA) incorrectly shows the available memory of the host server instead of the Linux Container on the Specify Configuration Options page. When you choose to allocate the percentage of memory based on the value shown, the database creation fails in case where the total consumable memory for that Linux Container is less than the allocated memory.
Workaround:
You must allocate physical memory for the database according to the configuration of the Linux Container system.
Parent topic: Open Bugs Affecting Linux
3.6.2 Bug 26708302
Deinstallation of Oracle Real Application Clusters (Oracle RAC) home on shared Network Attached Storage (NAS) fails to delete the directory $ORACLE_HOME/deinstall
and returns the following error:
Failed to delete the directory $ORACLE_HOME/deinstall. Either user has no permission to delete or it is in use.
Workaround:
Manually delete the $ORACLE_HOME/deinstall
folder as either the Oracle RAC owner or as root.
Parent topic: Open Bugs Affecting Linux
3.6.3 Bug 24939744
The Cairo package in Oracle R Enterprise fails to load on SUSE Linux Enterprise Server 12 when the libtiff.so.3
version is missing.
Workaround:
Create a symlink for libtiff.so.3
from libtiff5.so.5
.
Parent topic: Open Bugs Affecting Linux
3.6.4 Bug 26929665
Oracle Cluster Health Advisor (CHA) models fail to restore in the Oracle Grid Infrastructure Management Repository (GIMR) after downgrading Oracle Grid Infrastructure on a member cluster to Oracle Database 12c Release 2 (12.2).
Workaround:
-
Run the
R$GI_HOME/bin/srvctl stop cha
command. -
Run the
$GI_HOME/bin/chactl import model \ -file $GI_HOME/cha/model/os_gold.svm -name DEFAULT_CLUSTER
-
Run the
$GI_HOME/bin/chactl import model \ -file $GI_HOME/cha/model/db_gold.svm -name DEFAULT_DB
-
Run the
$GI_HOME/bin/srvctl start cha
command.
Parent topic: Open Bugs Affecting Linux