[Hadoop-common-user] Cloudera Flume

On 2011-03-16, at 7:53 PM, Mark wrote:

Sorry if this is not the correct list to post this on, it was the closest I could find.

We are using a taildir('/var/log/foo/') source on all of our agents. If this agent goes down and data can not be sent to the collector for some time, what happens when this agent becomes available again? Will the agent tail the whole directory starting from the beginning of all files thus adding duplicate data to our sink?

I've read that I could set the startFromEnd parameter to true. In that case however if an agent goes down then we would lose any data that gets written to our file until the agent comes back up. How do people handle this? It seems like you either have to deal with the fact that you will have duplicate or missing data.

Thanks||

On 3/16/11 6:55 PM, James Seigel wrote:
I believe sir there should be a flume support group on cloudera. I'm
guessing most of us here haven't used it and therefore aren't much
help.

This is vanilla hadoop land. :)

Cheers and good luck!
James

On a side note, how much data are you pumping through it?


Sent from my mobile. Please excuse the typos.

On 2011-03-16, at 7:53 PM, Markwrote: