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From 张祥 <xiangzhang1...@gmail.com>
Subject Re: what happened in case of single disk failure
Date Wed, 04 Mar 2020 06:48:24 GMT
Thanks Peter, it makes a lot of sense.

Peter Bukowinski <pmbuko@gmail.com> 于2020年3月3日周二 上午11:56写道:

> Whether your brokers have a single data directory or multiple data
> directories on separate disks, when a disk fails, the topic partitions
> located on that disk become unavailable. What happens next depends on how
> your cluster and topics are configured.
> If the topics on the affected broker have replicas and the minimum ISR
> (in-sync replicas) count is met, then all topic partitions will remain
> online and leaders will move to another broker. Producers and consumers
> will continue to operate as usual.
> If the topics don’t have replicas or the minimum ISR count is not met,
> then the topic partitions on the failed disk will be offline. Producers can
> still send data to the affected topics — it will just go to the online
> partitions. Consumers can still consume data from the online partitions.
> -- Peter
> > On Mar 2, 2020, at 7:00 PM, 张祥 <xiangzhang1128@gmail.com> wrote:
> >
> > Hi community,
> >
> > I ran into disk failure when using Kafka, and fortunately it did not
> crash
> > the entire cluster. So I am wondering how Kafka handles multiple disks
> and
> > it manages to work in case of single disk failure. The more detailed, the
> > better. Thanks !

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