服务器上的tomcat动不动就出现错误，导致用户登陆不上去

sp6版本，在服务器上的 tomcat 昨天下午因为用户反映登陆不到平台，一看tomcat中错误，我就重启了tomcat，可是今天中午客户又说登陆不上去了，我看了一下，tomcat又错误，导致无法登录，我又重启了一下，感觉最近特别频繁（从来没有修改过配置文件）

您好，麻烦您把完整的tomcat错误信息提供给我，以便协助您分析定位问题。谢谢！

那只能等下次发生错误的时候，给你提供，大概是连接数据库发生的错误。

行。下次出问题了你直接Q我给你看吧。我的QQ:366479712

今天又出问题了。tomcat错误代码如下：
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterD
ispatcher.java:177)
        at cn.myapps.base.web.filter.OBPMFilterDispatcher.doFilter(OBPMFilterDis
patcher.java:43)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at cn.myapps.base.web.filter.AjaxMultiLanguageFilter.doFilter(AjaxMultiL
anguageFilter.java:42)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at cn.myapps.base.web.dwr.filter.DWRFilter.doFilter(DWRFilter.java:41)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at cn.myapps.base.web.filter.PersistenceFilter.doFilter(PersistenceFilte
r.java:30)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at cn.myapps.base.web.filter.SecurityFilter.doFilter(SecurityFilter.java
:91)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at cn.myapps.base.web.filter.EncodingFilter.doFilter(EncodingFilter.java
:27)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:175)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:263)
        at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso
r.java:852)
        at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr
ocess(Http11AprProtocol.java:584)
        at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:15
08)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLException: Couldn't perform the operation getAutoCommit:
You can't perform any operations on this connection. It has been automatically c
losed by Proxool for some reason (see logs).
        at org.logicalcobwebs.proxool.WrappedConnection.invoke(WrappedConnection
.java:207)
        at org.logicalcobwebs.proxool.WrappedConnection.intercept(WrappedConnect
ion.java:87)
        at com.mysql.jdbc.Connection$$EnhancerByProxool$$3c49d542.getAutoCommit(
<generated>)
        at org.hibernate.jdbc.ConnectionManager.isAutoCommit(ConnectionManager.j
ava:189)
        at org.hibernate.jdbc.JDBCContext.afterNontransactionalQuery(JDBCContext
.java:239)
        ... 93 more
org.hibernate.exception.GenericJDBCException: could not initialize a collection:
[cn.myapps.core.role.ejb.RoleVO.permission#11e1-73fb-9382485f-bc51-cd56ce611492
]
        at org.hibernate.exception.SQLStateConverter.handledNonSpecificException
(SQLStateConverter.java:103)
        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.j
ava:91)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp
er.java:43)
        at org.hibernate.loader.Loader.loadCollection(Loader.java:1992)
        at org.hibernate.loader.collection.BatchingCollectionInitializer.initial
ize(BatchingCollectionInitializer.java:52)
        at org.hibernate.persister.collection.AbstractCollectionPersister.initia
lize(AbstractCollectionPersister.java:565)
        at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onIn
itializeCollection(DefaultInitializeCollectionEventListener.java:60)
        at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:
1716)
        at org.hibernate.collection.AbstractPersistentCollection.forceInitializa
tion(AbstractPersistentCollection.java:454)
        at org.hibernate.engine.StatefulPersistenceContext.initializeNonLazyColl
ections(StatefulPersistenceContext.java:784)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Lo
ader.java:229)
        at org.hibernate.loader.Loader.doList(Loader.java:2211)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2095)
        at org.hibernate.loader.Loader.list(Loader.java:2090)
        at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:289)
        at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1695)

        at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:
142)
        at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:152)
        at cn.myapps.base.dao.HibernateBaseDAO.getDatasBySQL(HibernateBaseDAO.ja
va:261)
        at cn.myapps.base.dao.HibernateBaseDAO.getDatasBySQL(HibernateBaseDAO.ja
va:244)

跟客户电话+远程沟通，对应是程序访问不到。并不是数据库连接数的问题。初步分析可能是客户最近用户数增加很多，内存不够引起的。对应协助客户调整了内存参数。目前在观察。有问题随时沟通。

目前还没有出现问题，先关闭帖子吧，等运行一段时间了，再看情况，如果有问题，我继续发新帖，谢谢shary

感谢楼主反馈，该贴结贴。