[samesisa]

Hi,

Recently we have temporary mistake. We can't login on Zimbra's server. Our clients insert the correct username and password and Zimbra ask this fields again. I found this warn in /opt/zimbra/log/mailbox.log while this error happens.

2009-10-21 14:56:39,843 INFO  [MailboxPurge] [name=itt038@domain.com;mid=160;] purge - Purging messages.
2009-10-21 14:56:39,908 WARN  [MailboxPurge] [name=itt038@domain.com;mid=160;] purge - Unable to purge mailbox 160
com.zimbra.common.service.ServiceException: system failure: getDirectContext
ExceptionId:MailboxPurge:1256129799908:c305594497400103
Code:service.FAILURE
        at com.zimbra.common.service.ServiceException.FAILURE(ServiceException.java:253)
        at com.zimbra.cs.account.ldap.LdapUtil.getDirContext(LdapUtil.java:253)
        at com.zimbra.cs.account.ldap.LdapUtil.getDirContext(LdapUtil.java:238)
        at com.zimbra.cs.account.ldap.LdapProvisioning.modifyAttrsInternal(LdapProvisioning.java:279)
        at com.zimbra.cs.account.ldap.LdapProvisioning.modifyAttrs(LdapProvisioning.java:263)
        at com.zimbra.cs.account.ldap.LdapProvisioning.modifyAttrs(LdapProvisioning.java:244)
        at com.zimbra.cs.account.Provisioning.modifyAttrs(Provisioning.java:1543)
        at com.zimbra.cs.mailbox.PurgeThread.saveLastPurgedId(PurgeThread.java:204)
        at com.zimbra.cs.mailbox.PurgeThread.run(PurgeThread.java:135)
Caused by: javax.naming.CommunicationException: my.domain.com:389 [Root exception is java.net.ConnectException: Connection refused]
        at com.sun.jndi.ldap.Connection.<init>(Connection.java:197)
        at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:118)
        at com.sun.jndi.ldap.LdapClient.getInstance(LdapClient.java:1580)
        at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2616)
        at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:287)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193)
        at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:136)
        at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:66)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
        at javax.naming.InitialContext.init(InitialContext.java:223)
        at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:134)
        at com.zimbra.cs.account.ldap.LdapUtil.getDirContext(LdapUtil.java:246)
        ... 7 more
Caused by: java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:519)
        at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.sun.jndi.ldap.Connection.createSocket(Connection.java:336)
        at com.sun.jndi.ldap.Connection.<init>(Connection.java:184)
        ... 20 more

Previously had another problem. When we can try to log-in see this message: "A network service error has occurred"
I did not found any error into the logfiles. After reboot service, with zmcontrol command, it worked fine. But the mistake repeats itself from time to time. And found this warn/info messages on mailbox.log:
2009-10-08 11:01:19,429 INFO [btpool0-40] [ua=zclient/5.0.5_GA_2201.SLES10_64;oip=80.36.225.46;] SoapEngine - handler exception
2009-10-08 10:24:29,700 WARN [btpool0-59] [] soap - Unable to look up zimbraSoapRequestMaxSize. Not limiting the request size.

I read this thread
4.5.°_RC1 --> A network service error has occurred (zclient/io).

For solve this i increased the "-Xmx" JVM option value on /opt/zimbra/bin/zmmailboxdctl to 4096 MB. The original value of mailboxd_java_heap_memory_percen was 40%. Now is 68'5%. We have 6 GB RAM on our server. (Zimbra recommend against increasing the heap size to more than 30% of system memory).

These errors can be connected?

We have -> Release 5.0.5_GA_2201.SLES10_64_20080417011732 SLES10_64 FOSS edition

Thanks for your help.