300 second timeout on POP sync/download

[briansz]

How can I increase the default 300 second timeout for POP syncs/downloads in the Zimbra Desktop app?

I'm dealing with a very slow Exchange server through Davmail and after examining the Davmail logs, I can download about 12MB of any particular message before the connection is closed by the client. This corresponds to a 300 second interval in the log file from initiation of download to automatic connection closure.

Some of my attachments excceed 20MB, so I'd like to know how I can modify this 'feature' and access all the files in my mailbox.

Here's an example error log.


Product name: Zimbra Desktop
Product version: 7.1.2
Build ID: 10978
Release type: GA
OS Platform: Linux i386 2.6.35-22-generic
Time of event: 2011-09-28 10:46:54
Error type: Read timed out
Item ID: 1
Error summary: Sync failed due to IOException for the following items
Items will be retried on next sync
Item Id: 138 Message: pop sync fail
Failure details - PLEASE REMOVE ANY SENSITIVE INFORMATION
----------------------------------------------------------------------------

java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream. java:129)
at java.io.BufferedInputStream.fill(BufferedInputStre am.java:218)
at java.io.BufferedInputStream.read(BufferedInputStre am.java:237)
at com.zimbra.cs.mailclient.MailInputStream.read(Mail InputStream.java:114)
at com.zimbra.cs.mailclient.pop3.ContentInputStream.f illBuffer(ContentInputStream.java:72)
at com.zimbra.cs.mailclient.pop3.ContentInputStream.r ead(ContentInputStream.java:40)
at com.zimbra.cs.mailclient.pop3.ContentInputStream.s kipRemaining(ContentInputStream.java:62)
at com.zimbra.cs.mailclient.pop3.ContentInputStream.c lose(ContentInputStream.java:58)
at com.zimbra.cs.datasource.Pop3Sync.fetchAndAddMessa ge(Pop3Sync.java:285)
at com.zimbra.cs.datasource.Pop3Sync.fetchAndRetainMe ssages(Pop3Sync.java:230)
at com.zimbra.cs.datasource.Pop3Sync.importData(Pop3S ync.java:129)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:312)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:276)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLoc alDataSources(DataSourceMailbox.java:442)
at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataS ourceMailbox.java:480)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncOnTime r(DataSourceMailbox.java:409)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:257)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

Thanks!

[jflanigan]

You can try adding this to <user data>/conf/localconfig.xml

  <key name="javamail_pop3_timeout">
    <value>600</value>
  </key>

The value is expressed in seconds.

You will need to restart ZD after making the change.

[briansz]

This suggestion solved the issue conclusively. Thanks for your help!