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HPUX: Slow Client Connections Using LDAP Naming (Doc ID 462501.1)

Last updated on SEPTEMBER 30, 2011

Applies to:

Oracle Net Services - Version: 10.1.0.3.0 to 10.2.0.1.0 - Release: 10.1 to 10.2
HP-UX Itanium

Symptoms

Oracle 10g clients using LDAP resolution is taking a significant amount of time (> 60 seconds) to connect.
Oracle Net client trace shows most of the time is spent in following calls:

[27-JUN-2007 23:22:14:406] nzumalloc: entry 
[27-JUN-2007 23:22:14:406] nzumalloc: entry 
.. 
<< Repeats 500+ times >> 
.. 
[27-JUN-2007 23:24:09:530] nzumalloc: entry 
[27-JUN-2007 23:24:09:530] nzumalloc: entry

In above example of Oracle Net trace, these calls are taking almost 2 minutes during the LDAP resolution.Under normal conditions, these calls should take a few seconds to complete.

Changes

Recently moved to HP-UX Itanium Virtual Partition Server or upgraded to 10g on existing HP-UX virtual partitions.

Cause

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