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From Li Jin <yuyunliu...@gmail.com>
Subject Re: How to control network traffic when ts crash.
Date Mon, 04 Sep 2017 23:12:59 GMT
Hi Andrew,

Thanks for replay. I seeing at zabbix, I would like reduce the use of network
traffic and make sure the business online is not affect. I try to change
the configure num_tablets_to_copy_simultaneously from 10 to 1, Can it be
meet my needs?

King Lee

2017-09-05 3:35 GMT+08:00 Andrew Wong <awong@cloudera.com>:

> Hi Li,
> What errors are you seeing when the network traffic is full? Kudu needs to
> replicate all the data that was lost to maintain the specified replication
> factor. As far as I know there isn't a way to throttle this without giving
> up some guarantees.
> If the concern is around Kudu scans completing, there is an
> `isFaultTolerant` mode for the scanner that will retry at other servers,
> although I'm not sure this is what you want.
> Andrew
> On Mon, Sep 4, 2017 at 5:34 AM, Li Jin <yuyunliuhen@gmail.com> wrote:
>> Hi,I got a question.
>> Our kudu service is production now. when ts crash, data will migration
>> between ts. Network traffic will full and can not write or write
>> normally. it’s unacceptable. Is there any good way to control network
>> traffic when ts crash, and write or read service is not affect. Thanks!
> --
> Andrew Wong

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