tomcat - 使用脚本 : Connection Refused Error 停止 Tomcat

Question

我正在尝试编写一个简短的 bash 脚本来自动加载 war ，以保留我在 tomcat 服务器上的配置文件。但是，有时当我试图在脚本中停止 tomcat 时，它会给我这个错误:

Using CATALINA_BASE:   /usr/local/apache-tomcat-6.0.32~
Using CATALINA_HOME:   /usr/local/apache-tomcat-6.0.32~
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-6.0.32~/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /usr/local/apache-tomcat-6.0.32~/bin/bootstrap.jar
May 31, 2011 8:41:49 AM org.apache.catalina.startup.Catalina stopServer
SEVERE: Catalina.stop: 
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
    at java.net.Socket.connect(Socket.java:546)
    at java.net.Socket.connect(Socket.java:495)
    at java.net.Socket.<init>(Socket.java:392)
    at java.net.Socket.<init>(Socket.java:206)
    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:422)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:616)
    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:338)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:416)

我最初认为这是因为我试图在服务器完全启动之前关闭它，现在可能仍然如此。但是，我在脚本中添加了一个部分，用于检查以确保服务器在关闭之前已启动。然后，因为有时我仍然会遇到错误，所以我增加了一些 sleep 时间。如果我让它休眠 10 秒，它似乎一直在工作，但如果我让它只休眠 5 秒，它就不那么稳定了。我认为这归结为我对 tomcat 的启动和关闭顺序不是很熟悉，所以我不确定我的问题是不是我想的那样，我也不知道什么是好的、万无一失的解决方案。 因此，我的问题是:导致此错误的原因是什么？如果是服务器未完全启动导致的，那么对我的代码进行哪些更改可以防止该错误？

非常感谢您的帮助! 镜像命运

我的脚本:

#!/bin/bash
# Script to redeploy war, needs path to the new war

if [ ! -f $1 ];
then
    echo "File $1 not found! Get it right this time."
    exit 0;
fi
#Check if tomcat is up, if it is, shut 'er down
RESULT=`netstat -na | grep 8080 | awk '{print $7}' | wc -l`
if [ "$RESULT" = 0 ]; then
echo "Tomcat already down"
elif [ "$RESULT" != 0 ]; then
echo "Shutting down tomcat"
./shutdown.sh;
fi
cp ../webapps/SQLLoader/conf/configurable.properties ..;
rm ../webapps/SQLLoader -R;
echo "SQLLoader dir removed";
rm ../webapps/SQLLoader.war;
echo "SQLLoader removed";
cp $1 ../webapps;
echo "$1 moved to tomcat";
./startup.sh;
wait
echo "Server started";
echo "Waiting for dir to be created..."
while [ ! -d "../webapps/SQLLoader/conf" ]; do
    # Control will enter here if directory doesn't exist
    sleep 1
done;
mv ../configurable.properties ../webapps/SQLLoader/conf/;
echo "Config file put back in place";
RESULT=`netstat -na | grep 8080 | awk '{print $7}' | wc -l`
while [ "$RESULT" = 0 ]; do
    echo "Waiting for tomcat to start... JUST SO WE CAN KILL IT AGAIN HAHAHAHAHA!!"
    sleep 0.5
    RESULT=`netstat -na | grep 8080 | awk '{print $7}' | wc -l`
done;
echo "Sleep for safety"
sleep 5;
echo "Shutting down again"
./shutdown.sh
echo "Starting... again...... yeah..."
./startup.sh
echo "Status is: $?"

Answer 1

因此，我发现针对我的特定问题的解决方案是简单地使用 jar 命令 (duh) 解压 war 而不是重新启动服务器。这是我的新代码:

#!/bin/bash
# Script to redeploy war, needs path to the new war

if [ ! -f $1 ];
then
    echo "File $1 not found! Get it right this time."
    exit 0;
fi
#Check if tomcat is up, if it is, shut 'er down
RESULT=`netstat -na | grep $2 | awk '{print $7}' | wc -l`
if [ "$RESULT" = 0 ]; then
echo "Tomcat already down"
elif [ "$RESULT" != 0 ]; then
echo "Shutting down tomcat"
./shutdown.sh;
fi
cp ../webapps/SQLLoader/conf/configurable.properties ..;
rm ../webapps/SQLLoader -R;
echo "SQLLoader dir removed";
rm ../webapps/SQLLoader.war;
echo "SQLLoader removed";
cp $1 ../webapps;
echo "$1 moved to tomcat";
mkdir ../webapps/SQLLoader/
cd ../webapps/SQLLoader/
jar -xvf ../SQLLoader.war;
echo "Waiting for dir to be created..."
while [ ! -d "conf" ]; do
    # Control will enter here if directory doesn't exist
    sleep 1
done;
echo "Directory created, moving properties file";
cd ../../bin;
mv ../configurable.properties ../webapps/SQLLoader/conf/;
echo "Starting up"
./startup.sh
echo "Status is: $?"

它没有回答如何明确防止出现该错误的问题，但它确实解决了我的缩影中的问题。如果有人想出在前面解释的情况下为什么会发生错误的原因，请发布，因为我相信人们仍然有兴趣知道答案。