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Java包装器作为守护进程

javawrapperdaemonsjava-service-wrapperyajsw
3

我正在使用YAJSW在我的Centos 5.5机器上运行Java守护进程。我认为它运行良好，但突然间我注意到出现了这种错误，然后它就崩溃了。有什么帮助可以避免这种问题吗？我能否使用一些监控工具来监视并在出现问题时尽快恢复它？

以下只是错误列表的一部分。

NFO|3090/0|11-09-19 20:22:13|Controller State: LOGGED_ON -> PROCESS_KILLED
INFO|wrapper|11-09-19 20:22:13|restart process due to default exit code rule
INFO|wrapper|11-09-19 20:22:13|set state RUNNING->RESTART
INFO|wrapper|11-09-19 20:22:13|set state RESTART->RESTART_STOP
INFO|wrapper|11-09-19 20:22:13|stopping process with pid/timeout 3090 45000
INFO|3090/0|11-09-19 20:22:13|Controller State: PROCESS_KILLED -> WAITING_CLOSED
FINEST|3090/0|11-09-19 20:22:13|wrapper manager received stop command
INFO|3090/0|11-09-19 20:22:14|Controller State: WAITING_CLOSED -> USER_STOP
INFO|wrapper|11-09-19 20:22:14|stop config name null
INFO|wrapper|11-09-19 20:22:14|externalStop false
INFO|wrapper|11-09-19 20:22:14|exit code linux process 0
INFO|wrapper|11-09-19 20:22:14|killing 3090
INFO|3090/0|11-09-19 20:22:14|gobler execption OUTPUT 3090 null
INFO|3090/0|11-09-19 20:22:14|gobler execption ERROR 3090 null
INFO|3090/0|11-09-19 20:22:14|gobler terminated OUTPUT 3090
INFO|wrapper|11-09-19 20:22:14|process exit code: 0
INFO|3090/0|11-09-19 20:22:14|gobler terminated ERROR 3090
INFO|wrapper|11-09-19 20:22:14|set state RESTART_STOP->RESTART_WAIT
INFO|wrapper|11-09-19 20:22:19|set state RESTART_WAIT->RESTART_START
INFO|wrapper|11-09-19 20:22:19|starting Process
INFO|3090/0|11-09-19 20:22:19|Controller State: USER_STOP -> UNKNOWN
INFO|wrapper|11-09-19 20:22:19|Controller State: UNKNOWN -> WAITING
INFO|wrapper|11-09-19 20:22:20|working dir /usr/local
INFO|wrapper|11-09-19 20:22:20|error initializing script 
INFO|wrapper|11-09-19 20:22:20|exec:/usr/java/jdk1.6.0_18/bin/java -classpath /usr/local/yajsw-beta-10.2/./wrapperApp.jar:/usr/local -Xrs -Dwrapper.service=true -Dwrapper.console.visible=false -Dwrapper.visible=false -Dwrapper.pidfile=/var/run/wrapper.commServer.pid -Dwrapper.config=/usr/local/yajsw-beta-10.2/conf/wrapper.conf -Dwrapper.port=15003 -Dwrapper.key=-6288918147195966892 -Dwrapper.teeName=-6288918147195966892$1316434940036 -Dwrapper.tmpPath=/tmp org.rzo.yajsw.app.WrapperJVMMain 
INFO|wrapper|11-09-19 20:22:20|started process 8988
INFO|wrapper|11-09-19 20:22:20|started process with pid 8988
INFO|wrapper|11-09-19 20:22:20|set state RESTART_START->RUNNING
INFO|wrapper|11-09-19 20:22:34|Controller State: WAITING -> STARTUP_TIMEOUT
INFO|wrapper|11-09-19 20:22:34|restart process due to default exit code rule
INFO|wrapper|11-09-19 20:22:34|set state RUNNING->RESTART
INFO|wrapper|11-09-19 20:22:34|set state RESTART->RESTART_STOP
INFO|wrapper|11-09-19 20:22:34|stopping process with pid/timeout 8988 45000
INFO|wrapper|11-09-19 20:22:34|Controller State: STARTUP_TIMEOUT -> USER_STOP
INFO|wrapper|11-09-19 20:22:34|stop config name null
INFO|wrapper|11-09-19 20:22:34|externalStop false
INFO|wrapper|11-09-19 20:23:19|process did not stop after 45000 sec. -> hard kill
INFO|wrapper|11-09-19 20:23:19|killing 8988
INFO|wrapper|11-09-19 20:23:19|send kill sig
INFO|wrapper|11-09-19 20:23:19|exit code linux process 9
INFO|wrapper|11-09-19 20:23:19|Controller State: USER_STOP -> PROCESS_KILLED
INFO|8988/1|11-09-19 20:23:20|gobler execption OUTPUT 8988 null
INFO|8988/1|11-09-19 20:23:20|gobler execption ERROR 8988 null
INFO|wrapper|11-09-19 20:23:20|process exit code: 999
INFO|8988/1|11-09-19 20:23:20|gobler terminated OUTPUT 8988
INFO|8988/1|11-09-19 20:23:20|gobler terminated ERROR 8988
INFO|wrapper|11-09-19 20:23:20|set state RESTART_STOP->RESTART_WAIT
INFO|wrapper|11-09-19 20:23:25|set state RESTART_WAIT->RESTART_START
INFO|wrapper|11-09-19 20:23:25|starting Process
INFO|wrapper|11-09-19 20:23:25|Controller State: PROCESS_KILLED -> UNKNOWN
INFO|wrapper|11-09-19 20:23:25|Controller State: UNKNOWN -> WAITING
INFO|wrapper|11-09-19 20:23:25|working dir /usr/local
INFO|wrapper|11-09-19 20:23:25|error initializing script 
INFO|wrapper|11-09-19 20:23:25|exec:/usr/java/jdk1.6.0_18/bin/java -classpath /usr/local/yajsw-beta-10.2/./wrapperApp.jar:/usr/local -Xrs -Dwrapper.service=true -Dwrapper.console.visible=false -Dwrapper.visible=false -Dwrapper.pidfile=/var/run/wrapper.commServer.pid -Dwrapper.config=/usr/local/yajsw-beta-10.2/conf/wrapper.conf -Dwrapper.port=15003 -Dwrapper.key=-6288918147195966892 -Dwrapper.teeName=-6288918147195966892$1316435005686 -Dwrapper.tmpPath=/tmp org.rzo.yajsw.app.WrapperJVMMain 
INFO|wrapper|11-09-19 20:23:26|started process 8989
INFO|wrapper|11-09-19 20:23:26|started process with pid 8989
INFO|wrapper|11-09-19 20:23:26|set state RESTART_START->RUNNING
INFO|wrapper|11-09-19 20:23:40|Controller State: WAITING -> STARTUP_TIMEOUT
INFO|wrapper|11-09-19 20:23:40|restart process due to default exit code rule
INFO|wrapper|11-09-19 20:23:40|set state RUNNING->RESTART
INFO|wrapper|11-09-19 20:23:40|set state RESTART->RESTART_STOP
INFO|wrapper|11-09-19 20:23:40|stopping process with pid/timeout 8989 45000
INFO|wrapper|11-09-19 20:23:40|Controller State: STARTUP_TIMEOUT -> USER_STOP
INFO|wrapper|11-09-19 20:23:40|stop config name null
INFO|wrapper|11-09-19 20:23:40|externalStop false
INFO|wrapper|11-09-19 20:24:25|process did not stop after 45000 sec. -> hard kill
INFO|wrapper|11-09-19 20:24:25|killing 8989
INFO|wrapper|11-09-19 20:24:25|send kill sig
INFO|wrapper|11-09-19 20:24:25|exit code linux process 9
INFO|wrapper|11-09-19 20:24:25|Controller State: USER_STOP -> PROCESS_KILLED
INFO|8989/2|11-09-19 20:24:26|gobler execption OUTPUT 8989 null
INFO|8989/2|11-09-19 20:24:26|gobler execption ERROR 8989 null
INFO|wrapper|11-09-19 20:24:26|process exit code: 999
INFO|8989/2|11-09-19 20:24:26|gobler terminated OUTPUT 8989
INFO|8989/2|11-09-19 20:24:26|gobler terminated ERROR 8989
3个回答
1

您可以通过附加strace来追踪Linux进程正在做什么。

如果这是YAJSW本身的问题，并且您正在寻找一个简单的包装器来保持作业的运行，那么可以使用简单的bash脚本来完成。

until myjob; do
    echo "restarting myjob"
    sleep 10
done

第1行是一个阻塞调用，只要myjob正在运行，如果它以0之外的任何值退出，它将被重新启动。

现在的问题是，我没有看到任何来自我的应用程序的问题指示，因为如果有问题，它会显示一些线索。我只是说这个INFO|wrapper|11-09-19 20:22:13|restart process due to default exit code rule。所以你建议的脚本是一个shell脚本吗？如何运行？所以你让它睡眠10毫秒是吗？问题是我的应用程序需要继续运行，因为它不断接收数据。 - user837306
这是一个Bash脚本，它会休眠10秒。如果您需要一个连续的线程，为什么不在Java本身中启动一个新线程呢？问题太多了……你试过去咖啡因化吗？ - RHT
什么是Decaf软件？ - user837306
0
我在Windows上遇到了非常相似的包装器日志输出。 在我的情况下，多个应用程序通过yajsw实例运行。 看起来在某些情况下，yajsw自动选择端口来监视Java应用程序不起作用。
在失败的yajsw实例中添加：
wrapper.port = 24572

修复了问题。在修改wrapper.conf之后重新创建服务。我只需要在失败的yajsw实例中添加这个；其他实例都可以成功自动选择端口。端口号无所谓，只需选择一个未使用的端口。
0
你可以看一下：这里 - 这可能是一个资源泄漏。
问题不再是打开太多文件，因为我已经增加了文件描述符。如果您查看上面附加的日志文件，它只是停止而没有任何好的线索是什么原因？ - user837306
1
如果出现资源泄漏，它的原因是什么，如何追踪它？ - user837306
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