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From: Aaron Turner <synfinatic@gmail.com>
Date: Tue, 28 Aug 2012 08:38:57 -0700
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Subject: Re: Automating nodetool repair
To: user@cassandra.apache.org
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Funny you mention that... i just was hearing on #cassandra this
morning that it repairs the replica set by default.  I was thinking of
repairing every 3rd node (RF=3D3), but running -pr seems "cleaner".

Do you know if this (repairing a replica vs node) was introduced in 1.0 or =
1.1?

On Tue, Aug 28, 2012 at 7:03 AM, Edward Capriolo <edlinuxguru@gmail.com> wr=
ote:
> You can consider adding -pr. When iterating through all your hosts
> like this. -pr means primary range, and will do less duplicated work.
>
> On Mon, Aug 27, 2012 at 8:05 PM, Aaron Turner <synfinatic@gmail.com> wrot=
e:
>> I use cron.  On one box I just do:
>>
>> for n in node1 node2 node3 node4 ; do
>>    nodetool -h $n repair
>>    sleep 120
>> done
>>
>> A lot easier then managing a bunch of individual crontabs IMHO
>> although I suppose I could of done it with puppet, but then you always
>> have to keep an eye out that your repairs don't overlap over time.
>>
>> On Mon, Aug 27, 2012 at 4:52 PM, Edward Sargisson
>> <edward.sargisson@globalrelay.net> wrote:
>>> Hi all,
>>> So nodetool repair has to be run regularly on all nodes. Does anybody h=
ave
>>> any interesting strategies or tools for doing this or is everybody just
>>> setting up cron to do it?
>>>
>>> For example, one could write some Puppet code to splay the cron times a=
round
>>> so that only one should be running at once.
>>> Or, perhaps, a central orchestrator that is given some known quiet time=
 and
>>> works its way through the list, running nodetool repair one at a time (=
using
>>> RPC?) until it runs out of time.
>>>
>>> Cheers,
>>> Edward
>>> --
>>>
>>> Edward Sargisson
>>>
>>> senior java developer
>>> Global Relay
>>>
>>> edward.sargisson@globalrelay.net
>>>
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>>
>>
>>
>> --
>> Aaron Turner
>> http://synfin.net/         Twitter: @synfinatic
>> http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & =
Windows
>> Those who would give up essential Liberty, to purchase a little temporar=
y
>> Safety, deserve neither Liberty nor Safety.
>>     -- Benjamin Franklin
>> "carpe diem quam minimum credula postero"


--=20
Aaron Turner
http://synfin.net/         Twitter: @synfinatic
http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Win=
dows
Those who would give up essential Liberty, to purchase a little temporary
Safety, deserve neither Liberty nor Safety.
    -- Benjamin Franklin
"carpe diem quam minimum credula postero"