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From Bryan Baugher <bjb...@gmail.com>
Subject Broker crashes when no space left for log.dirs
Date Wed, 14 Aug 2013 16:52:27 GMT
Hi,

This is more of a thought question than a problem that I need support for.
I have trying out Kafka 0.8.0-beta1 with replication. For our user case we
want to try and guarantee that our consumers will see all messages even if
they have fallen greatly behind the broker/producer. For this reason I
wanted to know how the broker would react when the filesystem it writes its
messages to is full. What I found was that the broker crashes and cannot be
started until the filesystem has space again.

Is there or would it make sense to provide configuration allowing the
broker to reject writes in this case rather than crashing, electing a new
leader and attempting the write again? I can clearly understand the use
case that we don't want to 'lose' messages from the producer and I could
also see how lack of filesystem space could be considered a machine
failure, but with replication I would think if you are running out of space
on 1 broker you are likely running out of space on others.

Bryan

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