You haven't a control in such situations, since tailDir uses tail and holds the marker in memory.
We had few days ago a thread about:
On Feb 6, 2013, at 3:45 AM, 周梦想 <[EMAIL PROTECTED]> wrote:
> I'm using tailDirs('mydir') source of the agent to gather logs to hadoop
> hdfs. I notice some documents advise that if the agent collapsed, I have
> to remove files in 'mydir' and clear flume.agent.logdir. Thus I will lose
> some data or have duplicate data. And I don't know which line the agent
> have sent to.
> I'm worrying about the agent failure and resend or miss-send the content to
> collector. I want to know how to check which line of log file the agent
> have sent if the agent exit suddenly. The files in flute log dir, such as
> sending,sent can't be read.
> Please give some advise to process such situation.
> Andy Zhou
German Hadoop LinkedIn Group: http://goo.gl/N8pCF