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Hi All!
I am having a problem manually restarting/stopping a JServ engine. What I
get in the logfile is this:
Exception in thread "main" java.lang.NullPointerException
at org.apache.jserv.JServ.fail(JServ.java, Compiled Code)
at org.apache.jserv.JServ.fail(JServ.java, Compiled Code)
at org.apache.jserv.JServ.signal(JServ.java, Compiled Code)
at org.apache.jserv.JServ.main(JServ.java, Compiled Code)
The relevant files are included below.
Thanks,
Shash
The configuration I have:
Redhat-6.1 on Intel
Blackdown JDK 1.2.2-RC3
JServ-1.1b3 (on Apache 1.3.9, although irrelevant in this case)
---------------------------JServ script -----------------------------------
I use the "-r" or "-s" argument to the following script:
#!/bin/bash
cfg=/home/chatsa/servlets/jserv.properties
log=/home/chatsa/logs/jserv_share.log
java="java -green"
# Setup classpath for all tools and common libraries
cp=/home/chatsa/servlets/classes:/usr/local/lib/jdk/lib/tools.jar
cp=$cp:/home/chatsa/servlets/classes/mail.jar
cp=$cp:/home/chatsa/servlets/classes/activation.jar
cp=$cp:/home/httpd/classes/mysql_comp.jar
cp=$cp:/usr/lib/apache/ApacheJServ.jar
cp=$cp:/home/httpd/classes/servlet-2.0.jar
exec $java -classpath $cp org.apache.jserv.JServ $cfg $1 2>>$log
----------------------------- jserv.properties ---------------------------------
##
##
##
###############################################################################
# Apache JServ Configuration File #
###############################################################################
################################ W A R N I N G ################################
# Unlike normal Java properties, JServ configurations have some important
# extentions:
#
# 1) commas are used as token separators
# 2) multiple definitions of the same key are concatenated in a
# comma-separated list.
###############################################################################
#
# General parameters
######################
# Set the default IP address or hostname Apache JServ binds (or listens) to.
#
# If you have a machine with multiple IP addresses, this address
# will be the one used. If you set the value to localhost, it
# will be resolved to the IP address configured for the locahost
# on your system (generally this is 127.0.0.1). This feature is so
# that one can have multiple instances of Apache JServ listening on
# the same port number, but different IP addresses on the same machine.
#
# Syntax: bindaddress=[ipaddress] or [localhost]
# Default: localhost
bindaddress=www.chatsa
# Set the port Apache JServ listens to.
# Syntax: port=[1024,65535] (int)
# Default: 8007
port=9001
#
# Servlet Zones parameters
###########################
# List of servlet zones Apache JServ manages
# Syntax: zones=[servlet zone],[servlet zone]... (Comma separated list of String)
# Default: NONE
zones=chatsa,gnujsp
# Configuration file for each servlet zone (one per servlet zone)
# Syntax: [servlet zone name as on the zones list].properties=[full path to
configFile] (String)
# Default: NONE
# Note: if the file could not be opened, try using absolute paths.
chatsa.properties=/home/chatsa/servlets/zone.properties
gnujsp.properties=/home/chatsa/servlets/gnujsp.properties
#
# Thread Pool parameters
#########################
# Enables or disables the use of the thread pool.
# Syntax: pool=[true|false] (boolean)
# Default: false
# WARNING: the pool has not been extensively tested and may generate deadlocks.
# For this reason, we advise against using this code in production environments.
pool=false
# Indicates the number of idle threads that the pool may contain.
# Syntax: pool.capacity=(int)>0
# Default: 10
# NOTE: depending on your system load, this number should be low for contantly
# loaded servers and should be increased depending on load bursts.
pool.capacity=10
# Indicates the pool controller that should be used to control the
# level of the recycled threads.
# Syntax: pool.controller=[full class of controller] (String)
# Default: org.apache.java.recycle.DefaultController
# NOTE: it is safe to leave this unchanged unless special recycle behavior
# is needed. Look at the "org.apache.java.recycle" package javadocs for more
# info on other pool controllers and their behavior.
pool.controller=org.apache.java.recycle.DefaultController
#
# Security parameters
#####################
# Enable/disable the execution of org.apache.jserv.JServ as a servlet.
# This is disabled by default because it may give informations that should
# be restricted.
# Note that the execution of Apache JServ as a servlet is filtered by the web
# server modules by default so that both sides should be enabled to let this
# service work.
# This service is useful for installation and configuration since it gives
# feedback about the exact configurations Apache JServ is using, but it should
# be disabled when both installation and configuration processes are done.
# Syntax: security.selfservlet=[true|false] (boolean)
# Default: false
# WARNING: disable this in a production environment since may give reserved
# information to untrusted users.
security.selfservlet=true
# Set the maximum number of socket connections Apache JServ may handle
# simultaneously. Make sure your operating environment has enough file
# descriptors to allow this number.
# Syntax: security.maxConnections=(int)>1
# Default: 50
security.maxConnections=50
# Backlog setting for very fine performance tunning of JServ.
# Unless you are familiar to sockets leave this value commented out.
# security.backlog=5
# List of IP addresses allowed to connect to Apache JServ. This is a first
# security filtering to reject possibly unsecure connections and avoid the
# overhead of connection authentication.
# Syntax: security.allowedAddresses=[IP address],[IP Address]... (Comma separated list
of IP addresses)
# Default: 127.0.0.1
security.allowedAddresses=127.0.0.1,192.168.0.1,192.168.0.100,192.168.0.101,192.168.0.102
# Enable/disable connection authentication.
# NOTE: unauthenticated connections are a little faster since authentication
# handshake is not performed at connection creation.
# WARNING: authentication is disabled by default because we believe that
# connection restriction from all IP addresses but localhost reduces your
# time to get Apache JServ to run. If you allow other addresses to connect and
# you don't trust it, you should enable authentication to prevent untrusted
# execution of your servlets. Beware: if authentication is disabled and the
# IP address is allowed, everyone on that machine can execute your servlets!
# Syntax: security.authentication=[true,false] (boolean)
# Default: true
security.authentication=true
# Authentication secret key.
# The secret key is passed as a file that must be kept secure and must
# be exactly the same of those used by clients to authenticate themselves.
# Syntax: security.secretKey=[secret key path and filename] (String)
# Default: NONE
# Note: if the file could not be opened, try using absolute paths.
security.secretKey=/etc/httpd/conf/jserv/jserv.secret.key
# Length of the randomly generated challenge string (in bytes) used to
# authenticate connections. 5 is the lowest possible choice to force a safe
# level of security and reduce connection creation overhead.
# Syntax: security.challengeSize=(int)>5
# Default: 5
security.challengeSize=5
#
# Logging parameters
####################
# Enable/disable Apache JServ logging.
# WARNING: logging is a very expensive operation in terms of performance. You
# should reduced the generated log to a minumum or even disable it if fast
# execution is an issue. Note that if all log channels (see below) are
# enabled, the log may become really big since each servlet request may
# generate many Kb of log. Some log channels are mainly for debugging
# purposes and should be disabled in a production environment.
# Syntax: log=[true,false] (boolean)
# Default: true
log=true
# Set the name of the trace/log file. To avoid possible confusion about
# the location of this file, an absolute pathname is recommended.
#
# This log file is different than the log file that is in the
# jserv.conf file. This is the log file for the Java portion of Apache
# JServ.
#
# On Unix, this file must have write permissions by the owner of the JVM
# process. In other words, if you are running Apache JServ in manual mode
# and Apache is running as user nobody, then the file must have its
# permissions set so that that user can write to it.
# Syntax: log.file=[log path and filename] (String)
# Default: NONE
# Note: if the file could not be opened, try using absolute paths.
log.file=/home/chatsa/logs/jserv.log
# Enable the timestamp before the log message
# Syntax: log.timestamp=[true,false] (boolean)
# Default: true
log.timestamp=true
# Use the given string as a data format
# (see java.text.SimpleDateFormat for the list of options)
# Syntax: log.dateFormat=(String)
# Default: [dd/MM/yyyy HH:mm:ss:SSS zz]
log.dateFormat=[dd/MM/yyyy HH:mm:ss:SSS zz]
# Since all the messages logged are processed by a thread running with
# minimum priority, it's of vital importance that this thread gets a chance
# to run once in a while. If it doesn't, the log queue overflow occurs,
# usually resulting in the OutOfMemoryError.
#
# To prevent this from happening, two parameters are used: log.queue.maxage
# and log.queue.maxsize. The former defines the maximum time for the logged
# message to stay in the queue, the latter defines maximum number of
# messages in the queue.
#
# If one of those conditions becomes true (age > maxage || size > maxsize),
# the log message stating that fact is generated and the log queue is
# flushed in the separate thread.
#
# If you ever see such a message, either your system doesn't live up to its
# expectations or you have a runaway loop (probably, but not necessarily,
# generating a lot of log messages).
#
# WARNING: Default values are lousy, you probably want to tweak them and
# report the results back to the development team.
# Syntax: log.queue.maxage = [milliseconds]
# Default: 5000
log.queue.maxage = 5000
# Syntax: log.queue.maxsize = [integer]
# Default: 1000
log.queue.maxsize = 1000
# Enable/disable logging the channel name
# Default: false
log.channel=true
# Enable/disable channels, each logging different actions.
# Syntax: log.channel.[channel name]=[true,false] (boolean)
# Default: false
# Info channel - quite a lot of informational messages
# hopefully you don't need them under normal circumstances
log.channel.info=true
# Servlets exception, i.e. exception caught during
# servlet.service() processing are monitored here
# you probably want to have this one switched on
log.channel.servletException=true
# JServ exception, caught internally in jserv
# we suggest to leave it on
log.channel.jservException=true
# Warning channel, it catches all the important
# messages that don't cause JServ to stop, leave it on
log.channel.warning=true
# Servlet log
# All messages logged by servlets. Probably you want
# this one to be switched on.
log.channel.servletLog=true
# Critical errors
# Messages produced by critical events causing jserv to stop
log.channel.critical=true
# Debug channel
# Only for internal debugging purposes
log.channel.debug=true
--
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