Web interface freeze

[rrezende]

I've installed Zimbra on Debian 4 about 4 weeks ago and web interface had freeze aproximatelly twice for week, just web interface. It takes a long time to show login page and freeze when any user tries login, it happens to all users. If the user already logged the web interface locks and shows a messages saying that the server is not responding. I've already put off some addons like IM, Tasks, Documents, schedule but still freezing.
On mailbox.log i saw this error on freeze but i have no idea what the matter:

ua=ZimbraWebClient - IE6 (Win)/5.0.18_GA_3011.DEBIAN4.0;] soap - SearchConvRequest
2009-08-14 08:28:35,698 WARN [btpool0-39] [] log - Nested in javax.servlet.ServletException: invoke Read timed out:
com.zimbra.cs.zclient.ZClientException: invoke Read timed out
ExceptionId:btpool0-39:1250249315698:255d4fd07387af55
Code:zclient.IO_ERROR
at com.zimbra.cs.zclient.ZClientException.IO_ERROR(ZC lientException.java:47)
at com.zimbra.cs.zclient.ZMailbox.getBootstrapJSON(ZM ailbox.java:941)
at com.zimbra.cs.taglib.tag.GetInfoJSONTag.doTag(GetI nfoJSONTag.java:51)
at org.apache.jsp.public_.launchZCS_jsp._jspService(l aunchZCS_jsp.java:320)
at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:93)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:373)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:477)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:371)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at com.zimbra.webClient.servlet.JspServlet.service(Js pServlet.java:50)
at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:362)
at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:716)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:406)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispa tcher.java:268)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispa tcher.java:126)
at org.apache.jasper.runtime.PageContextImpl.forward( PageContextImpl.java:767)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_othe rwise_5(login_jsp.java:1975)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_choo se_6(login_jsp.java:1706)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_when _8(login_jsp.java:1675)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_choo se_5(login_jsp.java:1637)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_othe rwise_4(login_jsp.java:1496)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_choo se_3(login_jsp.java:1269)
at org.apache.jsp.public_.login_jsp._jspx_meth_c_if_2 (login_jsp.java:1238)
at org.apache.jsp.public_.login_jsp._jspService(login _jsp.java:421)
at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:93)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:373)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:477)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:371)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1093)
at com.zimbra.webClient.filters.SetHeaderFilter.doFil ter(SetHeaderFilter.java:305)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1084)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserA gentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter .java:129)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:716)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:406)
at org.mortbay.jetty.handler.ContextHandlerCollection .handle(ContextHandlerCollection.java:211)
at org.mortbay.jetty.handler.HandlerCollection.handle (HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.handler.rewrite.RewriteHandler.h andle(RewriteHandler.java:350)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.he aderComplete(HttpConnection.java:830)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.ru n(BoundedThreadPool.java:442)
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream. java:129)
at com.sun.net.ssl.internal.ssl.InputRecord.readFully (InputRecord.java:293)
at com.sun.net.ssl.internal.ssl.InputRecord.read(Inpu tRecord.java:331)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRec ord(SSLSocketImpl.java:782)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDat aRecord(SSLSocketImpl.java:739)
at com.sun.net.ssl.internal.ssl.AppInputStream.read(A ppInputStream.java:75)
at java.io.BufferedInputStream.fill(BufferedInputStre am.java:218)
at java.io.BufferedInputStream.read(BufferedInputStre am.java:235)
at org.apache.commons.httpclient.HttpParser.readRawLi ne(HttpParser.java:77)
at org.apache.commons.httpclient.HttpParser.readLine( HttpParser.java:105)
at org.apache.commons.httpclient.HttpConnection.readL ine(HttpConnection.java:1115)
at org.apache.commons.httpclient.HttpMethodBase.readS tatusLine(HttpMethodBase.java:1832)
at org.apache.commons.httpclient.HttpMethodBase.readR esponse(HttpMethodBase.java:1590)
at org.apache.commons.httpclient.HttpMethodBase.execu te(HttpMethodBase.java:995)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteWithRetry(HttpMethodDirector.java:397)

[uxbod]

Welcome to the forums

su - zimbra
zmcontrol -v

How much memory does your server have ? Is it a physical or virtual server ?

[rrezende]

Thanks, i have been reading the forums for 2 or 3 months, but post and register just today.

cat /etc/debian_version
4.0

uname -a
Linux 2.6.18-6-686 #1 SMP Tue May 5 00:40:20 UTC 2009 i686 GNU/Linux

zmcontrol -v
Release 5.0.18_GA_3011.DEBIAN4.0 DEBIAN4.0 FOSS edition

free -tm
total used free shared buffers cached
Mem: 3036 2441 594 0 190 1057
-/+ buffers/cache: 1192 1843
Swap: 2588 0 2588
Total: 5624 2441 3182

Server is a virtual machine on Debian.

[Bill Brock]

Are you running IE6 on the computers accessing the web client? It caused problems for me to the point of being unusable.