tomcat不稳定时间长老报这个错麻烦大家给个好的解决方案！
开始正常，运行一段时间tomcat就死掉拉。这是最近的日志大家给我看看有没有好的解决方案啊。
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:16
0)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:683)
at java.lang.Thread.run(Thread.java:595)
select convert(varchar,a.typeid) str_typeid, a.typename, (select convert(varcha
r,count(1)) from bigclass b where b.typeid = a.typeid and b.bigclassview=1) str_
count_bigclass from type a where typeview=1 order by a.typeorder
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Unhandled toke
n type: ROW
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source
)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReplyToken(Unknown
Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRPCRequest.processReplyToken(Unkn
own Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReply(Unknown Sour
ce)
at com.microsoft.jdbc.sqlserver.tds.TDSCursorRequest.closeCursor(Unknown
Source)
at com.microsoft.jdbc.sqlserver.tds.TDSCursorRequest.completeRowProcessi
ng(Unknown Source)
at com.microsoft.jdbc.sqlserver.SQLServerImplResultSet.close(Unknown Sou
rce)
at com.microsoft.jdbc.base.BaseResultSet.close(Unknown Source)
at org.apache.commons.dbcp.DelegatingResultSet.close(DelegatingResultSet
.java:193)
at org.apache.commons.dbcp.DelegatingStatement.passivate(DelegatingState
ment.java:248)
at org.apache.commons.dbcp.DelegatingStatement.close(DelegatingStatement
.java:177)
at com.bonc.javax.DataCenter.retrieve(DataCenter.java:354)
at com.bonc.javax.DataCenter.retrieve(DataCenter.java:377)
at com.shangdunet.cmsadmin.action.BaseAction.setMenuInfo(BaseAction.java
:138)
at com.shangdunet.cmsadmin.action.BaseAction.execute(BaseAction.java:63)
at org.apache.struts.action.RequestProcessor.processActionPerform(Reques
tProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
va:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:119
6)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
[解决办法]
是你的web app问题
[解决办法]
tomcat内存溢出了。楼主可能没有对你的tomcat进行调优，tomcat默认只使用64M的内存，随便一个应用就会导致内存溢出的。
打开bin目录，找到catalina.bat（windows系统）或catalina.sh（linux系统），在前边一堆的#号注释结束之后增加如下配置
windows的：
set CATALINA_OPTS= "-server -Xms256m -Xmx256m -XX:PermSize=64M -XX:MaxNewSize=256m -XX:MaxPermSize=128m -Dcom.sun.management.jmxremote "
linux的：
CATALINA_OPTS= '-server -Xms256m -Xmx256m -XX:PermSize=64M -XX:MaxNewSize=256m -XX:MaxPermSize=128m -Dcom.sun.management.jmxremote '
重启tomcat即可。如果不确定这些配置是否起效，可部署probe来对tomcat进行监控，这也是用来查出你的问题的一个办法。
[解决办法]
sql有问题
java.lang.OutOfMemoryError: Java heap space
select convert(varchar,a.typeid) str_typeid, a.typename, (select convert(varcha
r,count(1)) from bigclass b where b.typeid = a.typeid and b.bigclassview=1) str_
count_bigclass from type a where typeview=1 order by a.typeorder
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Unhandled toke
n type: ROW
你确定你的sql在分析器里能正常的执行？
[解决办法]
上面已经有人告诉你了，增大你的tomcat所使用的jvm的heap size。如果想真正解决，你需要用一个Profiler工具，先确定你的应用在特定压力下的memory footprint，再检查是否有内存泄露。
[解决办法]
把probe.war拷贝到webapps目录下
打开conf/tomcat-users.xml，增加如下内容
<role rolename= "manager "/>
<role rolename= "tomcat "/>
<role rolename= "admin "/>
<role rolename= "poweruser "/>
<role rolename= "probeuser "/>
<user username= "admin " password= "admin " roles= "admin,user,manager,poweruser,probeuser "/>
启动tomcat后访问/probe
输入这里配置的用户名和密码即可登录probe管理界面
首先可以查看一下tomcat内存情况，最大值和已使用值等等，看是否和你配置的优化参数相符，然后再查看其他的参数。
[解决办法]
是程序的某一个地方执行时占用了大量的内存,这问题以前也遇到过.只有去程序里找了.
[解决办法]
严重: An exception or error occurred in the container during the request process
ing
java.lang.OutOfMemoryError: Java heap space
select convert(varchar,a.typeid) str_typeid, a.typename, (select convert(varcha
r,count(1)) from bigclass b where b.typeid = a.typeid and b.bigclassview=1) str_
count_bigclass from type a where typeview=1 order by a.typeorder
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Unhandled toke
n type: ROW
应该是这个问题，限制一下得到的记录条数
[解决办法]
建议做一下压力测试吧
然后再跟踪一下
[解决办法]
在tomcat的bin/catalina.bat文件中
rem Set JVM Memery Size
set JAVA_OPTS=-Xms800m -Xmx2048m
