.
From: Alexander Dejanovski
Sent: Wednesday, February 27, 2019 9:22 AM
To: user@cassandra.apache.org
Subject: Re: [EXTERNAL] Re: Question on changing node IP address
It has to be balanced with the dangers related to the PropertyFileSnitch.
I've seen such incidents happen twice in the last few
On Wed, Feb 27, 2019 at 3:11 PM Durity, Sean R
wrote:
> We use the PropertyFileSnitch precisely because it is the same on every
> node. If each node has to have a different file (for GPFS) – deployment is
> more complicated. (And for any automated configuration you would have a
> list of hosts
y)
>
>
>
> I do put UNKNOWN as the default DC so that any missed node easily appears
> in its own unused DC.
>
>
>
>
>
> Sean Durity
>
>
>
> *From:* Alexander Dejanovski
> *Sent:* Wednesday, February 27, 2019 4:43 AM
> *To:* user@cassandra.apac
as the default DC so that any missed node easily appears in
its own unused DC.
Sean Durity
From: Alexander Dejanovski
Sent: Wednesday, February 27, 2019 4:43 AM
To: user@cassandra.apache.org
Subject: [EXTERNAL] Re: Question on changing node IP address
This snitch is easy to misconfigure
>> wxn...@zjqunshuo.com> wrote:
>>
>>> I'm using SimpleSnitch. I have only one DC. Is there any problem to
>>> follow the below procedure?
>>>
>>> -Simon
>>>
>>> *From:* Alexander Dejanovski
>>> *Date:* 2019
vski
>> *Date:* 2019-02-27 16:07
>> *To:* user
>> *Subject:* Re: Question on changing node IP address
>>
>> I confirm what Oleksandr said.
>> Just stop Cassandra, change the IP, and restart Cassandra.
>> If you're using the GossipingPropertyFileSnitch, the n
:* Re: Question on changing node IP address
>
> I confirm what Oleksandr said.
> Just stop Cassandra, change the IP, and restart Cassandra.
> If you're using the GossipingPropertyFileSnitch, the node will redeclare
> its new IP through Gossip and that's it.
> If you're using the Prop
I'm using SimpleSnitch. I have only one DC. Is there any problem to follow the
below procedure?
-Simon
From: Alexander Dejanovski
Date: 2019-02-27 16:07
To: user
Subject: Re: Question on changing node IP address
I confirm what Oleksandr said.
Just stop Cassandra, change the IP, and restart
This snitch is easy to misconfigure. It allows some nodes to have a
different view of the cluster if they are configured differently, which can
result in data loss (or at least data that is very hard to recover).
Also it has a nasty feature that allows to set a default DC/Rack. If one
node isn't
If you're using the PropertyFileSnitch, well... you shouldn't as it's a
rather dangerous and tedious snitch to use
I inherited Cassandra clusters that use the PropertyFileSnitch. It's been
working fine, but you've kinda scared me :-)
Why is it dangerous to use?
If I decide to change the snitch,
I confirm what Oleksandr said.
Just stop Cassandra, change the IP, and restart Cassandra.
If you're using the GossipingPropertyFileSnitch, the node will redeclare
its new IP through Gossip and that's it.
If you're using the PropertyFileSnitch, well... you shouldn't as it's a
rather dangerous and
On Wed, Feb 27, 2019 at 4:15 AM wxn...@zjqunshuo.com
wrote:
> >After restart with the new address the server will notice it and log a
> warning, but it will keep token ownership as long as it keeps the old host
> id (meaning it must use the same data directory as before restart).
>
> Based on my
-26 18:36
To: User
Subject: Re: Question on changing node IP address
On Tue, Feb 26, 2019 at 9:39 AM wxn...@zjqunshuo.com
wrote:
I'm running 2.2.8 with vnodes and I'm planning to change node IP address.
My procedure is:
Turn down one node, setting auto_bootstrap to false in yaml file, then bri
On Tue, Feb 26, 2019 at 3:26 PM Durity, Sean R
wrote:
> This has not been my experience. Changing IP address is one of the worst
> admin tasks for Cassandra. System.peers and other information on each nodes
> is stored by ip address. And gossip is really good at sending around the
> old
Sent: Tuesday, February 26, 2019 5:36 AM
To: User
Subject: [EXTERNAL] Re: Question on changing node IP address
On Tue, Feb 26, 2019 at 9:39 AM
wxn...@zjqunshuo.com<mailto:wxn...@zjqunshuo.com>
mailto:wxn...@zjqunshuo.com>> wrote:
I'm running 2.2.8 with vnodes and I'm planning to ch
On Tue, Feb 26, 2019 at 9:39 AM wxn...@zjqunshuo.com
wrote:
>
> I'm running 2.2.8 with vnodes and I'm planning to change node IP address.
> My procedure is:
> Turn down one node, setting auto_bootstrap to false in yaml file, then
> bring it up with -Dcassandra.replace_address. Repeat the
Hi All,
I'm running 2.2.8 with vnodes and I'm planning to change node IP address.
My procedure is:
Turn down one node, setting auto_bootstrap to false in yaml file, then bring it
up with -Dcassandra.replace_address. Repeat the procedure one by one for the
other nodes.
I care about streaming
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