Novell eDirectory 8.8 Troubleshooting Guide - NetIQ

19Miscellaneous
• Section 19.1, “Backing Up a Container,” on page 93
• Section 19.2, “Repeated eDirectory Logins,” on page 93
• Section 19.3, “Enabling Event System Statistics,” on page 93
• Section 19.4, “Tracking Memory Corruption Issues on Linux,” on page 93
• Section 19.5, “TCP Connection not Terminating after Abnormal Logout,” on page 94
• Section 19.6, “NDS Error, System Failure (-632) Occurs When Doing ldapsearch for the User
Objects,” on page 95
• Section 19.7, “Disabling SecretStore,” on page 95
19.1 Backing Up a Container
While using ndsbackup to backup a container that has many objects (like a million), it might take
some time to get the list of the objects in the container and start their individual backup.
19.2 Repeated eDirectory Logins
Repeated eDirectory logins can use up the available memory. Disable the Login Update attribute
using ndsimonitor to overcome this problem.
19.3 Enabling Event System Statistics
Time related statistics are maintained for every event thrown and consumed in eDirectory. This
information is useful for troubleshooting event consumer issues. These statistics are not required for
normal functioning of directory; therefore, they are disabled for performance reasons. Event
statistics can be enabled at runtime by using iMonitor advanced configuration parameters.
To view the event statistics, set the ENABLE_EVENT_STATISTICS parameter and restart the
server . It is a permanent configuration parameter.
19.4 Tracking Memory Corruption Issues on
Linux
On Linux platforms, eDirectory uses google malloc (libtcmalloc) as the default memory allocator.
To track memory corruption issues, set the MALLOC_CHECK_ environment variable in the
ndsd startup script. The startup script checks for this variable. If set, the default system malloc is
used, else google malloc is loaded.
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novdocx (en) 11 July 2008
MALLOC_CHECK Settings in ndsd
• When MALLOC_CHECK_ is set to 0, any detected heap corruption is silently ignored.
• When MALLOC_CHECK_ is set to 2, abort is called immediately.
Miscellaneous
93