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From Harikrishnan Pillai <HPil...@walmartlabs.com>
Subject Re: Re: Tuning bootstrap new node
Date Tue, 31 Oct 2017 18:27:59 GMT
There is no magic in speeding up the node addition other than increasing stream throughput
and compaction throughput.

it has been noticed that with heavy compactions the latency may go up if the node also start
serving data.

if you really don't want  this node to service traffic till all compactions settle down, you
can disable gossip and binary protocol using the nodetool command. This will allow compactions
to continue but requires a repair to fix the stale data later.

Regards

Hari


________________________________
From: Nitan Kainth <nitankainth@gmail.com>
Sent: Tuesday, October 31, 2017 5:47 AM
To: user@cassandra.apache.org
Subject: EXT: Re: Tuning bootstrap new node

Do not stop compaction, you will end up with thousands of sstables.

You increase stream throughput from default 200 to a heifer value if your network can handle
it.

Sent from my iPhone

On Oct 31, 2017, at 6:35 AM, Peng Xiao <2535053@qq.com<mailto:2535053@qq.com>>
wrote:

Can we stop the compaction during the new node bootstraping and enable it after the new node
joined?

Thanks
------------------ Original ------------------
From:  "我自己的邮箱";<2535053@qq.com<mailto:2535053@qq.com>>;
Date:  Tue, Oct 31, 2017 07:18 PM
To:  "user"<user@cassandra.apache.org<mailto:user@cassandra.apache.org>>;
Subject:  Tuning bootstrap new node

Dear All,

Can we make some tuning to make bootstrap new node more quick?We have a three DC cluster(RF=3
in two DCs,RF=1 in another ,48 nodes in the DC with RF=3).As the Cluster is becoming larger
and larger,we need to spend more than 24 hours to bootstrap a new node.
Could you please advise how to tune this ?

Many Thanks,
Peng Xiao
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