[Bug 9915] New: File stopped synchronizing during transmission

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=9915

           Summary: File stopped synchronizing during transmission
           Product: rsync
           Version: 3.0.9
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: oswulf_chua at msn.com
         QAContact: rsync-qa at samba.org


We have currently trying to transmit data from one server to another using
RYSNC by synchronizing 2 folders. Occasionally, we noticed that the file stop
when in the middle of transmission (we can see tmp file created on the
receiving end) even through the file has completely written to the the folder
on the sending side. After a long while (7-30 minutes), it will complete
sending. We are not sure if the following is true, but if we start sending a
file to the same folder the such issue happen, the "hung" file will resume
sending and complete immediately. The message file that we sent are usually in
the sizes between 1MB-4MB. For the time being, we are sending small-sized file
of 1byte to "trigger" and "hung" transmission. Below is the arguments that we
are using

RSYNC_ARG="--log-file=$LOGFILE --chmod=a+rwx,g+rwx,o+rwx --exclude=*.tmp
--remove-sent-files --stats --ignore-times --whole-file -qr"

There is no data loss but we encountered a long delay in data transmission.

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