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Index: U

Undefined subroutine: &Apache::ROOT::perl::test_2epl::some_function called at, message: 22.3.8. Undefined subroutine &Apache::ROOT::perl::test_2epl::some_function called at

Uniform Resource Identifers (see URIs, length limitations)

unique connections, Apache::DBI module and: 20.1.2. When to Use Apache::DBI (and When Not to Use It)

Unix

configuring mod_perl: 2.3. Configuring and Starting the mod_perl Server

installing mod_perl, unpacking source code: 2.2.1. Obtaining and Unpacking the Source Code

server rebooting, SysV init system: 5.7. Preparing for Machine Reboot

unpacking source code: 2.2.1. Obtaining and Unpacking the Source Code

unrecognized format specifier errors: 3.2.2.2. Unrecognized format specifier for...

untie( ) calls, locking and: 19.3. Flawed Locking Methods

update_mtime( ), last-modified header: 16.1.2. Last-Modified Header

upgrade issues: 3.11.3. Should I Rebuild mod_perl if I Have Upgraded Perl?

upgrading server

CVS and: 5.8.2.2.7. Using CVS for code upgrades

Internet cluster servers: 5.8.2.1. The server cluster

Internet single servers: 5.8.2.2. The single server

Intranet servers: 5.8.1. Upgrading Intranet Servers

overview: 5.8. Upgrading a Live Server

Perl code: 5.8.2.2.5. Upgrading Perl code

port forwarding: 5.8.2.2.2. Upgrading a live server with port forwarding

prepackaged components: 5.8.2.2.3. Upgrading a live server with prepackaged components

reusing configuration parameters: 3.1.5. Reusing Configuration Parameters

scripts and handlers: 5.8.2.2.6. Moving files and restarting the server

swapping live and backup servers: 5.8.2.2.1. Upgrading live server components by swapping machines

symbolic links: 5.8.2.2.4. Upgrading a live server using symbolic links

uploading files: 12.15. Uploading and Downloading Big Files

URI translation (Apache request processing): 1.4. Apache 1.3 Request Processing Phases

URIs, length limitations: 1.1.3. Apache CGI Handling with mod_cgi

URLs, fully qualified, importance of: 12.3. One Plain and One mod_perl-Enabled Apache Server

use( ), server startup file: 4.3.4. The Confusion with use( ) in the Server Startup File

Use of unitialized value at (eval 80) line 12, message: 22.3.7. Use of uninitialized value at (eval 80) line 12

USE_APACI configuration parameter: 3.1.1. Controlling the Build Process

USE_APXS configuration parameter: 3.1.1. Controlling the Build Process

USE_DSO configuration parameter: 3.1.1. Controlling the Build Process

users

performance and: 7.2. Asking the Right Questions

virtual machines: C.4. Giving Each User a Virtual Machine

USR1 signal: 5.3.1. kill Signals for Stopping and Restarting Apache

utilities

amprapmon: 5.11.4. Tracking and Terminating Hanging Processes

ApacheBench: 9.1.1. ApacheBench

Apache::Recorder: 9.1.4. Other Web Server Benchmark Utilities

chkconfig: 5.7. Preparing for Machine Reboot

httperf: 9.1.2. httperf

http_load: 9.1.3. http_load

HTTP::Monkeywrench: 9.1.4. Other Web Server Benchmark Utilities

HTTP::RecordedSession: 9.1.4. Other Web Server Benchmark Utilities

HTTP::WebTest: 9.1.4. Other Web Server Benchmark Utilities

parent processes, identifying: 5.3.3. Finding the Right Apache PID

process memory consumption monitoring: 9.3. Process Memory Measurements

top, monitoring system health: 5.10.1. Interactive Monitoring

tpage: D.5. Processing Templates

ttree: D.3. Typical Uses

utilities taglib, AxKit: E.3.5. Utilities Taglib

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