Thanks Peter, really appreciate it.

Peter Bukowinski <pmb...@gmail.com> 于2020年3月4日周三 下午11:50写道:

> Yes, you should restart the broker. I don’t believe there’s any code to
> check if a Log directory previously marked as failed has returned to
> healthy.
>
> I always restart the broker after a hardware repair. I treat broker
> restarts as a normal, non-disruptive operation in my clusters. I use a
> minimum of 3x replication.
>
> -- Peter (from phone)
>
> > On Mar 4, 2020, at 12:46 AM, 张祥 <xiangzhang1...@gmail.com> wrote:
> >
> > Another question, according to my memory, the broker needs to be
> restarted
> > after replacing disk to recover this. Is that correct? If so, I take that
> > Kafka cannot know by itself that the disk has been replaced, manually
> > restart is necessary.
> >
> > 张祥 <xiangzhang1...@gmail.com> 于2020年3月4日周三 下午2:48写道:
> >
> >> Thanks Peter, it makes a lot of sense.
> >>
> >> Peter Bukowinski <pmb...@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 <xiangzhang1...@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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